Template-Type: ReDIF-Article 1.0
Author-Name: Eric Pengkuan Ho
Author-X-Name-First: Eric Pengkuan
Author-X-Name-Last: Ho
Author-Name: Steven I-jy Chien
Author-X-Name-First: Steven I-jy
Author-X-Name-Last: Chien
Author-Name: Ching-Jung Ting
Author-X-Name-First: Ching-Jung
Author-X-Name-Last: Ting
Title: A hybrid modeling method for the planning and evaluation of intelligent transportation systems
Abstract:
Intelligent Transportation Systems (ITS), with significant
progressive development in the last decade, have been considered as
effective ways to improve the efficiency of the transportation system. The
state and local planning agencies in the US and elsewhere will soon
consider ITS facilities in their transportation plans. However, ITS, which
are primarily operations and information oriented, are different from the
traditional “facility-based” projects. Therefore, the
traditional transportation planning models are not suitable for the
evaluation of ITS. In this paper, we present a hybrid modeling method
which combines the use of the transportation planning model (TPM) and the
traffic analysis/simulation model (TAM) with an interface. After examining
the functionalities and the data used by the models, we found that TPMs
and TAMs share a large amount of data in similar formats and provide most
of the measures of effectiveness for the evaluation of ITS. The
complementary use of TPM and TAM is discussed based on three factors: 1)
the scope of the expected impacts; 2) the planning horizon; and 3) nature
of the impacts (e.g., travel demand oriented or traffic
operations oriented). Finally, a conceptual interface framework for
converting the information between the two types of models is discussed,
while various issues related to the development of the interface are
explored.
Journal: Transportation Planning and Technology
Pages: 1-23
Issue: 1
Volume: 24
Year: 2000
Month: 5
X-DOI: 10.1080/03081060008717658
File-URL: http://hdl.handle.net/10.1080/03081060008717658
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Handle: RePEc:taf:transp:v:24:y:2000:i:1:p:1-23
Template-Type: ReDIF-Article 1.0
Author-Name: Liping Fu
Author-X-Name-First: Liping
Author-X-Name-Last: Fu
Author-Name: L. R. Rilett
Author-X-Name-First: L. R.
Author-X-Name-Last: Rilett
Title: Estimation of time-dependent, stochastic route travel times using artificial neural networks
Abstract:
This paper presents an artificial neural network (ANN) based
method for estimating route travel times between individual locations in
an urban traffic network. Fast and accurate estimation of route travel
times is required by the vehicle routing and scheduling process involved
in many fleet vehicle operation systems such as dial-a-ride
paratransit, school bus, and private delivery services. The methodology
developed in this paper assumes that route travel times are
time-dependent and stochastic and their means and standard
deviations need to be estimated. Three feed-forward neural networks
are developed to model the travel time behaviour during different time
periods of the day-the AM peak, the PM peak, and the
off-peak. These models are subsequently trained and tested using
data simulated on the road network for the City of Edmonton, Alberta. A
comparison of the ANN model with a traditional distance-based model
and a shortest path algorithm is then presented. The practical implication
of the ANN method is subsequently demonstrated within a
dial-a-ride paratransit vehicle routing and scheduling
problem. The computational results show that the ANN-based route
travel time estimation model is appropriate, with respect to accuracy and
speed, for use in real applications.
Journal: Transportation Planning and Technology
Pages: 25-48
Issue: 1
Volume: 24
Year: 2000
Month: 5
X-DOI: 10.1080/03081060008717659
File-URL: http://hdl.handle.net/10.1080/03081060008717659
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Handle: RePEc:taf:transp:v:24:y:2000:i:1:p:25-48
Template-Type: ReDIF-Article 1.0
Author-Name: Henry S. L. Fan
Author-X-Name-First: Henry S. L.
Author-X-Name-Last: Fan
Author-Name: Jia-Ming Cao
Author-X-Name-First: Jia-Ming
Author-X-Name-Last: Cao
Title: Sea space capacity and operation strategy analysis system
Abstract:
Sea space planning and congestion management is receiving more
attention. However, little work on sea space capacity and strategy
analyses can be found in the literature. Compared to other transportation
systems, a sea space system has some special features that require
consideration. The system capacity also depends on the pattern of traffic
using the system. In this paper, we model a sea space as a directional
network and capacity models for berthing areas, anchorage areas, fairways
and their intersections, as well as the entire sea space system are
developed. These models can be used to compute capacity for any given
traffic pattern which can be extracted from vessel trip records or from
traffic forecasts. To implement these models, a software system called Sea
Space Capacity and Strategy Analysis System (SCSAS) has been developed in
Visual C + + and is now being used in Singapore.
Journal: Transportation Planning and Technology
Pages: 49-63
Issue: 1
Volume: 24
Year: 2000
Month: 5
X-DOI: 10.1080/03081060008717660
File-URL: http://hdl.handle.net/10.1080/03081060008717660
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Handle: RePEc:taf:transp:v:24:y:2000:i:1:p:49-63
Template-Type: ReDIF-Article 1.0
Author-Name: A. Faghri
Author-X-Name-First: A.
Author-X-Name-Last: Faghri
Author-Name: H. C. Dorsey
Author-X-Name-First: H. C.
Author-X-Name-Last: Dorsey
Title: The use of GIS and relational database management systems to improve the scheduling operations of paratransit
Abstract:
The scheduling operations of many paratransit agencies in the
United States are undertaken manually. Those customers who are eligible to
travel call in their requests the day before the trip is needed. As the
trip requests are received, they are entered into a list of unscheduled
trips. In order to schedule these trips, the scheduler must first
determine the number of drivers and shuttle buses that are available as
well as the time of availability of each. The scheduler must then try to
match the rides that are in “similar” areas around the
“same” time to place together on the driver's schedule. As
new trip requests are made, the schedulers must adjust the trips that are
already scheduled to try and schedule as many trips as possible in the
most efficient way. By developing a system that would improve the
scheduling system operations of, in this case, DART (Delaware
Administration for Regional Transit) First State Paratransit, customers
can expect to receive better service that will improve their ability to
travel throughout the community. Some devices that could also improve the
operations of paratransit agencies are described in this paper, such as
satellite-based Global Positioning System (GPS), radio
communication systems, mobile computers, radio frequency-based data
communication systems, internet web pages, automated paratransit
information systems, and card-based data storage and transfer
media. However, because paratransit systems are difficult to operate
cost-efficiently, the optimum and most cost-efficient device
must be selected. The system chosen for DART First State Paratransit
includes the use of a relational database management system (RDMS) and a
transportation Geographic Information System (GIS). RDMS keeps track of
the database information as well as the scheduled trips and the GIS is
ideal for analyzing both geographic and temporal data. This system is
shown to be superior to the manual system.
Journal: Transportation Planning and Technology
Pages: 65-86
Issue: 1
Volume: 24
Year: 1999
Month: 10
X-DOI: 10.1080/03081060008717661
File-URL: http://hdl.handle.net/10.1080/03081060008717661
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Handle: RePEc:taf:transp:v:24:y:1999:i:1:p:65-86
Template-Type: ReDIF-Article 1.0
Author-Name: Jose Viegas
Author-X-Name-First: Jose
Author-X-Name-Last: Viegas
Author-Name: Baichuan Lu
Author-X-Name-First: Baichuan
Author-X-Name-Last: Lu
Title: Widening the scope for bus priority with intermittent bus lanes
Abstract:
In the search for improved flowing conditions for buses, many
cities have introduced bus lanes and incorporated bus priority schemes in
their traffic control systems. However, these two instruments are
insufficient in themselves, since bus lanes are not justified with a low
frequency of buses but without such lanes buses frequently have to travel
in congested conditions in extended parts of their routes. This paper
presents the concept of Intermittent Bus Lane (IBL), suggests that it
could be physically implemented with longitudinal traffic lights,
discusses its fields of application and points to the mathematical
solution of some of the most relevant control problems associated with it.
Journal: Transportation Planning and Technology
Pages: 87-110
Issue: 2
Volume: 24
Year: 2000
Month: 10
X-DOI: 10.1080/03081060108717662
File-URL: http://hdl.handle.net/10.1080/03081060108717662
File-Format: text/html
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Handle: RePEc:taf:transp:v:24:y:2000:i:2:p:87-110
Template-Type: ReDIF-Article 1.0
Author-Name: James Odeck
Author-X-Name-First: James
Author-X-Name-Last: Odeck
Title: Comparison of data envelopment analysis and deterministic parametric frontier approaches: an application in the Norwegian road construction sector
Abstract:
This paper analyzes efficiency in the Norwegian road sector by
using two competing methods. The first is Data Envelopment Analysis (DEA),
while the second is Deterministic Frontier Analysis (DFA) with a
Cobb-Douglas kernel specification. Both approaches show
similarities with respect to efficiency distribution. The
rock-blasting sectors potential for efficiency improvement is in
the range 19--59 percent. Both approaches demonstrate decreasing return to
scale properties for the average unit. There is a significant correlation
between size and efficiency indicating that larger units perform better
than smaller ones. Precautionary blasting mainly performed in densely
populated areas is also found to explain much of the variations in
efficiency scores. Any policy implication should therefore carefully
examine exogenous factors. The main difference between the two approaches,
which can be explained by the number of parameters to be determined,
concerns level of scores rather than their distribution. However, there
are arguments that advocate DEA rather than DFA in the
rock-blasting sector.
Journal: Transportation Planning and Technology
Pages: 111-134
Issue: 2
Volume: 24
Year: 2000
Month: 10
X-DOI: 10.1080/03081060108717663
File-URL: http://hdl.handle.net/10.1080/03081060108717663
File-Format: text/html
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Handle: RePEc:taf:transp:v:24:y:2000:i:2:p:111-134
Template-Type: ReDIF-Article 1.0
Author-Name: P. Preston
Author-X-Name-First: P.
Author-X-Name-Last: Preston
Author-Name: E. Kozan
Author-X-Name-First: E.
Author-X-Name-Last: Kozan
Title: A Tabu search technique applied to scheduling container transfers
Abstract:
A scheduling model is designed and applied to seaport container
terminals taking into account factors such as container handling
equipment, labour resources, storage capacities and terminal layout. Major
factors influencing container transfer efficiency are analysed to optimise
resource usage resulting in lower operating costs while achieving a
desired level of customer service. A Tabu Search (TS) heuristic is used to
compare the benchmark of the Port of Brisbane with a Genetic Algorithm
(GA) heuristic solution.
Journal: Transportation Planning and Technology
Pages: 135-153
Issue: 2
Volume: 24
Year: 2000
Month: 5
X-DOI: 10.1080/03081060108717664
File-URL: http://hdl.handle.net/10.1080/03081060108717664
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Handle: RePEc:taf:transp:v:24:y:2000:i:2:p:135-153
Template-Type: ReDIF-Article 1.0
Author-Name: Kenneth Button
Author-X-Name-First: Kenneth
Author-X-Name-Last: Button
Author-Name: Elly Doyle
Author-X-Name-First: Elly
Author-X-Name-Last: Doyle
Author-Name: Roger Stough
Author-X-Name-First: Roger
Author-X-Name-Last: Stough
Title: Intelligent transport systems in commercial fleet management: a study of short term economic benefits
Abstract:
Interest in the effects on businesses that have implemented
Intelligent Transportation System (ITS) technologies has been growing but
systematically collected evidence of the advantages inherent in these
technologies at a micro-level is sparse. This study measures the
effects of an ITS technology shortly after being developed and implemented
by a courier company. The focus is on its labor augmenting potential. It
details the effectiveness of the technology and the software development
process. The case study concerns NOVA Group, a diversified transportation
company and developer of dispatching software called Dispatch Tools. The
effectiveness of the software is considered in terms of productivity of
drivers as measured by the number of deliveries per driver-hour.
Data were collected for the same three-month periods in 1996 before
implementation and in 1997 after implementation. A panel of drivers and
dispatchers participated. The change in productivity of these drivers
after implementation of the dispatching software averaged 24%. An
ancillary effect that was not anticipated was a decrease in stress on the
dispatchers and improved communications between dispatchers and office
personnel.
Journal: Transportation Planning and Technology
Pages: 155-170
Issue: 2
Volume: 24
Year: 2000
Month: 10
X-DOI: 10.1080/03081060108717665
File-URL: http://hdl.handle.net/10.1080/03081060108717665
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Handle: RePEc:taf:transp:v:24:y:2000:i:2:p:155-170
Template-Type: ReDIF-Article 1.0
Author-Name: W. G. Wong
Author-X-Name-First: W. G.
Author-X-Name-Last: Wong
Author-Name: B. M. Han
Author-X-Name-First: B. M.
Author-X-Name-Last: Han
Author-Name: L. Ferreira
Author-X-Name-First: L.
Author-X-Name-Last: Ferreira
Author-Name: X. N. Zhu
Author-X-Name-First: X. N.
Author-X-Name-Last: Zhu
Title: Factor influencing container transport: a fuzzy number-based distribution model approach
Abstract:
In recent years, the world economy has become more integrated
internationally and container transportation has become increasingly more
important as the proportion of all trade using containers is continuously
growing. In order to adapt to the increasing containerization trend, it is
essential to plan and construct adequate ports and facilities to cope with
this development. Based on the analysis of factors influencing container
movements, this paper illustrates the logical relationships for a
distribution model, which has been used to predict the distribution of
containers among the three main Seaports near Shenzhen and Hong Kong. A
fuzzy number-based distribution model is outlined in the paper. The
paper illustrates the main influencing factors and their logical
relationships and proposes a primary distribution model where the
attractiveness of each port has been calibrated. The results show that the
Port of Hong Kong is significantly more attractive than the other two
ports modelled and is likely to continue to be so in the future.
Journal: Transportation Planning and Technology
Pages: 171-183
Issue: 3
Volume: 24
Year: 2000
Month: 10
X-DOI: 10.1080/03081060108717666
File-URL: http://hdl.handle.net/10.1080/03081060108717666
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Handle: RePEc:taf:transp:v:24:y:2000:i:3:p:171-183
Template-Type: ReDIF-Article 1.0
Author-Name: D. C. Jordan
Author-X-Name-First: D. C.
Author-X-Name-Last: Jordan
Author-Name: J. Zietsman
Author-X-Name-First: J.
Author-X-Name-Last: Zietsman
Author-Name: L. R. Rilett
Author-X-Name-First: L. R.
Author-X-Name-Last: Rilett
Title: Development of sustainable transportation metrics for vehicular pollutants
Abstract:
A major challenge for transportation policy makers is to
identify policies that will result in a sustainable transportation system.
However, given the wide range of definitions of sustainable transportation
it is not always clear how a given policy will affect this overall goal.
In addition, there are very few quantifiable metrics that can be used to
assess sustainability at a disaggregate or individual vehicle level. The
amount of air pollution is often identified as a critical element in
sustainability concepts and thus is the focus of this paper. A method is
developed for assessing the responsibility of different vehicle classes
for air pollution as a function of operating conditions. The
responsibility measures are referred to as pollutant equivalency factors
(EF_p's). MOBILE 5a, which is the standard mobile source emission model in
North America, was used for the analysis although the methodology can be
applied to any emission model. The EF_p allows policy makers to make a
quantitative comparison between vehicle types under stated traffic
conditions, which can then be used to assess directly the effects of
different transportation policies. It was found that, in general,
responsibility increases with increasing vehicle age, increasing vehicle
size, increasing mileage, and decreasing speed. It is shown subsequently
how one element of sustainability, namely equity, may be obtained by using
EF_p to allocate costs associated with air pollution. The allocated costs
then can be used to pay for externalities associated with the
transportation system. A hypothetical test case, which involved the
upgrading of an arterial roadway section to a freeway, was used to
demonstrate this approach. It was found that EF_p's can be used both as
metrics for sustainability issues and for the implementation of
sustainability policies.
Journal: Transportation Planning and Technology
Pages: 185-207
Issue: 3
Volume: 24
Year: 2001
Month: 3
X-DOI: 10.1080/03081060108717667
File-URL: http://hdl.handle.net/10.1080/03081060108717667
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Handle: RePEc:taf:transp:v:24:y:2001:i:3:p:185-207
Template-Type: ReDIF-Article 1.0
Author-Name: Partha Chakroborty
Author-X-Name-First: Partha
Author-X-Name-Last: Chakroborty
Author-Name: Kalyanmoy Deb
Author-X-Name-First: Kalyanmoy
Author-X-Name-Last: Deb
Author-Name: Raj Kumar Sharma
Author-X-Name-First: Raj Kumar
Author-X-Name-Last: Sharma
Title: Optimal fleet size distribution and scheduling of transit systems using genetic algorithms
Abstract:
Optimal fleet size distribution and scheduling with transfer
consideration for a transit system is a difficult optimization problem. A
traditional formulation of the problem leads to a large non-linear
mixed integer programming problem. Past experience has shown that
traditional optimization methods are unable to give optimal solutions to
even simpler versions of the problem (like the optimal scheduling problem
with known fleet size distribution). In this paper, a simple binary coded
genetic algorithm (GA) based approach to the optimization problem is
presented. The use of GA allows a more efficient formulation of the
problem and the GA based approach gives optimal/near-optimal
results with limited computation effort.
Journal: Transportation Planning and Technology
Pages: 209-225
Issue: 3
Volume: 24
Year: 2000
Month: 10
X-DOI: 10.1080/03081060108717668
File-URL: http://hdl.handle.net/10.1080/03081060108717668
File-Format: text/html
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Handle: RePEc:taf:transp:v:24:y:2000:i:3:p:209-225
Template-Type: ReDIF-Article 1.0
Author-Name: Jarkko Niittymäki
Author-X-Name-First: Jarkko
Author-X-Name-Last: Niittymäki
Title: General fuzzy rule base for isolated traffic signal control-rule formulation
Abstract:
Traffic signal control is one of the oldest applications of
fuzzy logic, at least in transportation engineering. The aim of this paper
is to present a systematic approach to fuzzy traffic signal control and to
derive the linguistic control rules based on expert knowledge. Traffic
signal programming is generally divided into two problems: firstly, the
choice and sequencing of signal stages to be used, and secondly,
optimizing the relative lengths of these stages. The rule bases for both
problems are introduced in our paper. The results of tested rule bases and
field tests of fuzzy control have been promising. The fuzzy signal control
algorithms offer better measures of effectiveness than the traditional
vehicle-actuated control.
Journal: Transportation Planning and Technology
Pages: 227-247
Issue: 3
Volume: 24
Year: 2000
Month: 10
X-DOI: 10.1080/03081060108717669
File-URL: http://hdl.handle.net/10.1080/03081060108717669
File-Format: text/html
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Handle: RePEc:taf:transp:v:24:y:2000:i:3:p:227-247
Template-Type: ReDIF-Article 1.0
Author-Name: Randolph W. Hall
Author-X-Name-First: Randolph W.
Author-X-Name-Last: Hall
Title: Passenger waiting time and information acquisition using automatic vehicle location for verification
Abstract:
Bus riders utilize a variety of information media to learn how
to travel to their destinations and to learn when they should arrive at
bus stops. As part of the OCTA (Orange County Transit Authority) Transit
Probe evaluation, 1199 passengers were surveyed to measure relationships
between information acquisition and waiting time. A unique aspect of the
survey was that some of the data could be correlated with
automatic-vehicle-location (AVL) measurements of bus
lateness at stops. Insights are provided as to the types of information
riders acquire based on the nature of the trip and demographic
characteristics. Insights are also provided as to factors affecting
perceived waiting time. We found age group, whether a person needs to
arrive at a destination by a specific time, primary language, and whether
the person is a first-time user of the bus line to be significant
causal factors.
Journal: Transportation Planning and Technology
Pages: 249-269
Issue: 3
Volume: 24
Year: 2000
Month: 10
X-DOI: 10.1080/03081060108717670
File-URL: http://hdl.handle.net/10.1080/03081060108717670
File-Format: text/html
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Handle: RePEc:taf:transp:v:24:y:2000:i:3:p:249-269
Template-Type: ReDIF-Article 1.0
Author-Name: P. M. Parajuli
Author-X-Name-First: P. M.
Author-X-Name-Last: Parajuli
Author-Name: S. C. Wirasinghe
Author-X-Name-First: S. C.
Author-X-Name-Last: Wirasinghe
Title: A line haul transit technology selection model
Abstract:
A decision analytic model for the selection of mass transit
technology is suggested. The model considers a transit corridor with known
right of way category and rules of operation. The system with technology
under evaluation satisfies the users’, operators’ and
community requirements roughly equally and has identical level of comfort,
convenience and other nonquantifiable attributes of performance measures.
Cost attributes comprise of access/egress cost, riding time cost, waiting
time cost in users’ side, transit operating cost, station cost,
line cost and fleet cost in the operators’ side, and the measurable
cost of air pollution on the community's cost side. Given the subjective
probabilities of the chance event influencing the decision and possible
outcomes of the event, technology, which offers the maximum expected
utility, is established. This utility indicator together with other
unmodellable factors can form the basis for decision making on technology
selection. The problem is extended to include multiple chance events and
outcomes of more definitive experiments with updated probabilities. It is
shown that transit technology similar to Light Rail Transit could be
considered viable in developing countries only when the value of travel
time is considerably higher than what it is now.
Journal: Transportation Planning and Technology
Pages: 271-308
Issue: 4
Volume: 24
Year: 2000
Month: 11
X-DOI: 10.1080/03081060108717671
File-URL: http://hdl.handle.net/10.1080/03081060108717671
File-Format: text/html
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Handle: RePEc:taf:transp:v:24:y:2000:i:4:p:271-308
Template-Type: ReDIF-Article 1.0
Author-Name: P. M. Parajuli
Author-X-Name-First: P. M.
Author-X-Name-Last: Parajuli
Author-Name: S. C. Wirasinghe
Author-X-Name-First: S. C.
Author-X-Name-Last: Wirasinghe
Title: Line haul interstation spacing for low cost feeder modes
Abstract:
The choice behaviour of low cost travel (LCT) modes is very
sensitive to travel distance. A line haul system designed on the basis of
current planning practice of locating widely spaced stations to cater auto
and bus feeder modes with the primary objective of gaining travel speed is
hostile to non-motorized and low cost feeder modes. With the
revival of interest in promoting the use of walk'n ride and bike'n ride
modes, there is a need to develop an appropriate tool to examine the
effect of their specific characteristics in establishing the number and
location of stations. A generic normative behavioural hybrid model for
locating the cost minimizing number and location of stations is developed
for an LCT-fed line haul system. The model considers the system
with many to many two dimensional line haul demand density function in
which the density varies in both x- and y-directions. The
feeder mode choice behaviour is incorporated in the model by integrating
probability-access/egress distance function with the objective
function. Explicit functional relationships among the parameters of these
feeder modes such as modal share as a function of access/egress distance
with the parameters of line haul systems are developed. Dynamic
programming is used to minimize the system cost. The generic model is
shown to collapse into several simplified models capable of yielding
approximate solutions for several well known special cases. It has been
shown that location of stations is sensitive to the through load on board
as well as users’ cost that defines the choice behaviour at large.
Numerical examples are presented to demonstrate the applicability of the
model.
Journal: Transportation Planning and Technology
Pages: 309-348
Issue: 4
Volume: 24
Year: 2000
Month: 11
X-DOI: 10.1080/03081060108717672
File-URL: http://hdl.handle.net/10.1080/03081060108717672
File-Format: text/html
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Handle: RePEc:taf:transp:v:24:y:2000:i:4:p:309-348
Template-Type: ReDIF-Article 1.0
Author-Name: Tom Cherrett
Author-X-Name-First: Tom
Author-X-Name-Last: Cherrett
Author-Name: David Pitfield
Author-X-Name-First: David
Author-X-Name-Last: Pitfield
Title: Extracting driving characteristics from heavy goods vehicle tachograph charts
Abstract:
European Union regulations require haulage companies of member
states like the UK to keep records of their drivers’ hours of work.
All heavy goods vehicles (HGV's) over 7.5 tonnes are fitted with
tachographs which record a driver's operating activities (periods of
driving, other work and rest). These records are etched onto a laminated
chart by various styli, one of which records the vehicle's speed. This
paper describes the development and testing of a new technique for
extracting individual driving characteristics from the speed trace of an
HGV tachograph chart to calculate four parameters: distance travelled,
average speed, time travelled and speed variability. The average speed,
time travelled and speed variability were analysed statistically using
one-way analysis of variance tests. Speed variability was found to
be particularly useful for identifying differences between individual
driver's behaviour. Once differences in behaviours can be identified it
may be possible to link certain driving habits to factors such as
component wear, accident rates and excessive fuel usage.
Journal: Transportation Planning and Technology
Pages: 349-363
Issue: 4
Volume: 24
Year: 2000
Month: 10
X-DOI: 10.1080/03081060108717673
File-URL: http://hdl.handle.net/10.1080/03081060108717673
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:24:y:2000:i:4:p:349-363
Template-Type: ReDIF-Article 1.0
Author-Name: John Holtzclaw
Author-X-Name-First: John
Author-X-Name-Last: Holtzclaw
Author-Name: Robert Clear
Author-X-Name-First: Robert
Author-X-Name-Last: Clear
Author-Name: Hank Dittmar
Author-X-Name-First: Hank
Author-X-Name-Last: Dittmar
Author-Name: David Goldstein
Author-X-Name-First: David
Author-X-Name-Last: Goldstein
Author-Name: Peter Haas
Author-X-Name-First: Peter
Author-X-Name-Last: Haas
Title: Location Efficiency: Neighborhood and Socio-Economic Characteristics Determine Auto Ownership and Use - Studies in Chicago, Los Angeles and San Francisco
Abstract:
Auto ownership and mileage per car are shown to vary in a
systematic and predictable fashion in response to neighborhood urban
design and socio-economic characteristics in the Chicago, Los Angeles, and
San Francisco regions. In all three cases, average auto ownership is
primarily a function of the neighborhood's residential density, average
per capita income, average family size and the availability of public
transit. Similarly, the average annual distance driven per car is a strong
function of density, income, household size and public transit, and a
weaker function of the pedestrian and bicycle friendliness of the
community. The similarity of these relationships among the three metro
areas, despite their differences in geography and age, suggests that
similar relationships may be consistent throughout the United States or
worldwide. The application of the results to other metro areas is
discussed. The dependence of driving on the policy-related variables of
residential density, transit access, and pedestrian and
bicycle-friendliness may provide policy makers with additional tools for
reducing the costs and environmental impacts of transportation.
Journal: Transportation Planning and Technology
Pages: 1-27
Issue: 1
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/03081060290032033
File-URL: http://hdl.handle.net/10.1080/03081060290032033
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Handle: RePEc:taf:transp:v:25:y:2002:i:1:p:1-27
Template-Type: ReDIF-Article 1.0
Author-Name: Sang Hyup Lee
Author-X-Name-First: Sang Hyup
Author-X-Name-Last: Lee
Title: The Conceptual Development of an Innovative Hybrid Personal Transportation System Utilizing AVCS and High-Speed Magnetic Levitation Technology
Abstract:
The challenges posed by current surface transportation problems
cannot be solved by the application of a few isolated independent actions.
A broad, comprehensive solution is needed to restore and build the future
mobility our society will demand. The concept for such a solution is
embodied in the term, AVCS maglev. AVCS maglev is the synergistic
combination of Advanced Vehicle Control Systems (AVCS), which is the most
comprehensive functional area of Intelligent Transport Systems (ITS), and
the high-speed magnetic levitation (Maglev) technology. AVCS maglev will
provide a safe, high-speed, high-capacity, energy-efficient,
environment-friendly intercity and intracity transportation system. Most
importantly, the new system would be compatible with and, indeed, an
extension of the existing highway transportation system. So to speak, the
guideways would be constructed basically in the medians of existing
highways. While the vehicles using the "magway" (maglev guideway) would be
evolutionary like present day automobiles, they would be privately owned
and could operate on ordinary highways and streets as well as the AVCS
magways. The significance of this research lies in salvaging and
capitalizing on the promising concepts of AVCS and Maglev and melding them
into a transportation strategy.
Journal: Transportation Planning and Technology
Pages: 29-48
Issue: 1
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/03081060290032042
File-URL: http://hdl.handle.net/10.1080/03081060290032042
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Handle: RePEc:taf:transp:v:25:y:2002:i:1:p:29-48
Template-Type: ReDIF-Article 1.0
Author-Name: Daniel Badoe
Author-X-Name-First: Daniel
Author-X-Name-Last: Badoe
Title: Modelling Work-Trip Mode Choice Decisions in Two-Worker Households
Abstract:
This paper proposes that the theoretically more appropriate
approach for modelling mode choice decisions for the journey to work by
workers residing in two-worker households is through the development of a
choice model at the household level that takes into account the decisions
of both workers. There are at least two reasons for this. First, in the
majority of cases the model estimation data comes from household travel
surveys, which have the household as the sampling unit and not the
individual worker. The majority of households in urban areas these days
have two or more workers. Thus once a household is selected into the
sample all its working members are necessarily selected as well. The idea
of a random sample therefore holds at the level of the household and not
the individual worker. Second, workers from the same household in the long
run select modes for their journeys to work so as to minimize their
combined disutility to travel as opposed to independently minimizing their
respective individual disutilities. The household model thus treats the
alternatives available to the household workers as a "modal bundle" with
the two household workers, after intra-household bargaining, selecting the
modal bundle that minimizes their combined total disutility to travel. An
empirical test of both household and individual choice models is conducted
and the household model found to give more precise predictions.
Journal: Transportation Planning and Technology
Pages: 49-73
Issue: 1
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/03081060290032051
File-URL: http://hdl.handle.net/10.1080/03081060290032051
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Handle: RePEc:taf:transp:v:25:y:2002:i:1:p:49-73
Template-Type: ReDIF-Article 1.0
Author-Name: Sang Hyup Lee
Author-X-Name-First: Sang Hyup
Author-X-Name-Last: Lee
Title: Analysis of AVCS Maglev's Automated Highway Network Operation
Abstract:
AVCS maglev, which is the synergistic combination of Advanced
Vehicle Control Systems and high-speed magnetic levitation technology,
would operate on ordinary highways and streets under manual control as
well as on instrumented highways (magways) under automatic control. In
this paper the important aspects of fully-automated highway network
operation of AVCS maglev are investigated, which include mainline
longitudinal control, entrance ramp control, speed transition control and
peak-period optimization strategy. To select a suitable longitudinal
control alternative, block control, vehicle-follower control and
point-follower control concepts are investigated. To find an entrance ramp
operation strategy, the average delay of a ramp vehicle in position to be
merged, the ramp capacities and the ramp queue lengths are calculated. The
magway is envisaged to consist of three types of sections - restricted
capacity section (RCS), speed transition section (STS) and unrestricted
capacity section (UCS). The speed transition section is always located
between UCS and RCS to adjust the speeds between these two types of
sections. During the speed transition operation it is crucial to ensure
stability within the platoon of vehicles operating with small spacings.
For this purpose a suitable vehicle-following model is investigated.
Lastly, the peak-period optimization strategy to maximize the throughput
of a magway system is investigated using a linear programming model.
Journal: Transportation Planning and Technology
Pages: 75-101
Issue: 2
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/03081060290033195
File-URL: http://hdl.handle.net/10.1080/03081060290033195
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Handle: RePEc:taf:transp:v:25:y:2002:i:2:p:75-101
Template-Type: ReDIF-Article 1.0
Author-Name: John Gaber
Author-X-Name-First: John
Author-X-Name-Last: Gaber
Author-Name: Sharon Gaber
Author-X-Name-First: Sharon
Author-X-Name-Last: Gaber
Title: Using Focus and NomiNal Group Techniques for a Better Understanding of the Transit Disadvantaged Needs
Abstract:
The research presented in this paper explores the context,
method, and value of focus group research in transit needs assessments.
Group participatory research can generate data that are not easily
obtained by other methods. The paper focuses on lessons from three
Nebraska communities whose transit disadvantaged rely on community-based
paratransit services. Because of the size of the paratransit population
and the inability to control who showed up to the focus group sessions, a
modified group research protocol was adopted in order to garner
information from whomever attended the session. The population parameters
and the number of people at the meetings were anticipated by the
researchers and mitigated by incorporating nominal group techniques.
Research findings from the focus group sessions are discussed paying
particular attention to the candid and policy-specific comments made by
the focus group participants. The paper concludes with an application of
focus group research in transit planning.
Journal: Transportation Planning and Technology
Pages: 103-120
Issue: 2
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/03081060290033203
File-URL: http://hdl.handle.net/10.1080/03081060290033203
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Handle: RePEc:taf:transp:v:25:y:2002:i:2:p:103-120
Template-Type: ReDIF-Article 1.0
Author-Name: Jinn-Tsai Wong
Author-X-Name-First: Jinn-Tsai
Author-X-Name-Last: Wong
Author-Name: Sui-Ling Li
Author-X-Name-First: Sui-Ling
Author-X-Name-Last: Li
Author-Name: David Gillingwater
Author-X-Name-First: David
Author-X-Name-Last: Gillingwater
Title: An Optimization Model for Assessing Flight Technical Delay
Abstract:
This paper identifies the causes as well as the practical
measurement of aircraft flight delays. The performance of air traffic
management is measured by examining technical delays and scheduled
timetable delays, which are derived from a mathematical programming model.
To validate the optimization model, flight delays are simulated under
various service rules. The outcome of the simulation runs shows that the
average delay for each aircraft estimated from the optimization model is
marginally higher than that from the simulation run under the "first come
first serve" rule. However, under the "arrival flight first" rule, the
optimization model's results are either higher or lower than those of the
simulation model. Nonetheless, both sets of simulated delays are strongly
correlated with those of the optimization model. Results from regression
analyses show that the optimization model has the capacity to predict
flight technical delays.
Journal: Transportation Planning and Technology
Pages: 121-153
Issue: 2
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/03081060290033212
File-URL: http://hdl.handle.net/10.1080/03081060290033212
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Handle: RePEc:taf:transp:v:25:y:2002:i:2:p:121-153
Template-Type: ReDIF-Article 1.0
Author-Name: Dusan Teodorovic
Author-X-Name-First: Dusan
Author-X-Name-Last: Teodorovic
Author-Name: Jovan Popovic
Author-X-Name-First: Jovan
Author-X-Name-Last: Popovic
Author-Name: Goran Pavkovic
Author-X-Name-First: Goran
Author-X-Name-Last: Pavkovic
Author-Name: Shinya Kikuchi
Author-X-Name-First: Shinya
Author-X-Name-Last: Kikuchi
Title: Intelligent Airline Seat Inventory Control System
Abstract:
In this article, an "intelligent" airline seat inventory control
system is developed. Applications of the system are considered for both
nonstop flights and flights with stopovers. The system developed is able
to recognize a situation characterized by the number of reservations made
by individual passenger classes and the number of canceled reservations at
a certain moment in time before departure. The system can also make the
appropriate decision without knowing the functional relationships in
effect between individual variables. As in other intelligent systems, the
"intelligent" airline seat inventory control system proposed here is able
to generalize, adapt and learn based on new knowledge and new information.
The "intelligent" airline seat inventory control system is based on fuzzy
logic. The system makes on-line decisions as to whether to accept or
reject any passenger request using established fuzzy rules. The
"intelligent" system's results are compared with those of the EMSR model
for nonstop flights. The results for flights with stopovers are compared
with those obtained using integer programming. The final conclusions are
very promising.
Journal: Transportation Planning and Technology
Pages: 155-173
Issue: 3
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/0308106022000018991
File-URL: http://hdl.handle.net/10.1080/0308106022000018991
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Handle: RePEc:taf:transp:v:25:y:2002:i:3:p:155-173
Template-Type: ReDIF-Article 1.0
Author-Name: Grantham K.H. Pang
Author-X-Name-First: Grantham K.H.
Author-X-Name-Last: Pang
Author-Name: K. Takahashi
Author-X-Name-First: K.
Author-X-Name-Last: Takahashi
Author-Name: T. Yokota
Author-X-Name-First: T.
Author-X-Name-Last: Yokota
Author-Name: H. Takenaga
Author-X-Name-First: H.
Author-X-Name-Last: Takenaga
Title: Intelligent Route Selection for In-vehicle Navigation Systems
Abstract:
Driving is a demanding task which requires constant
concentration and appropriate maneuvers of a vehicle on the road. The
introduction of in-vehicle navigation and route guidance system should be
carried out with utmost care because of the abundant information that can
be provided to a driver. In order to increase the acceptance level and
lower the negative safety impacts of in-vehicle navigation systems, the
psychological consideration and study of model of driver behavior is
crucial. The focus of this article is on the design of a route selection
function for an in-vehicle navigation system. The issue of route selection
criteria and decision-making by drivers is discussed and an adaptive route
selection algorithm presented. The objective is to develop a system
function which can act as a driver's assistant and helps in the evaluation
of alternate routes. Such a system can help to filter and interpret
information to lessen stress on drivers. In this article, the
philosophical consideration of drivers' route selection is discussed. The
concept of primary attributes is introduced. Also, a review of route
selection studies, together with the results from three previous surveys,
are presented.
Journal: Transportation Planning and Technology
Pages: 175-213
Issue: 3
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/0308106022000019639
File-URL: http://hdl.handle.net/10.1080/0308106022000019639
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Handle: RePEc:taf:transp:v:25:y:2002:i:3:p:175-213
Template-Type: ReDIF-Article 1.0
Author-Name: Athanasios Matzoros
Author-X-Name-First: Athanasios
Author-X-Name-Last: Matzoros
Title: Decision Support Systems for Public Transport Management: The Athens Public Transport Authority Project
Abstract:
This article reports on an implementation study of a
computerised decision support system for public transport management for
the Athens Public Transport Authority (APTA). The study analysed the
current situation, specified user requirements, determined system
functionality, designed the system architecture, organised the project
and, finally, planned dissemination activities. The decision support
system covers the main public transport management activities of APTA -
transport service provision, economic and financial planning, passenger
complaints and suggestions, and personnel management - offering its users
the possibility to study the potential effects of their decisions before
implementation. To achieve this, the system will consist of a data
warehousing system, for the integrated management of a wide variety of
data sources, and of online analytical processing tools, for information
analysis and scenario testing. The system architecture has been designed
to offer robustness, flexibility, rich functionality and open
connectivity. The system aims to help APTA reduce operational costs and
provide a better transport service, attracting more passengers to public
transport and reducing, in the process, congestion and pollution.
Journal: Transportation Planning and Technology
Pages: 215-237
Issue: 3
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/0308106022000018973
File-URL: http://hdl.handle.net/10.1080/0308106022000018973
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Handle: RePEc:taf:transp:v:25:y:2002:i:3:p:215-237
Template-Type: ReDIF-Article 1.0
Author-Name: W.G. Wong
Author-X-Name-First: W.G.
Author-X-Name-Last: Wong
Author-Name: B.M. Han
Author-X-Name-First: B.M.
Author-X-Name-Last: Han
Author-Name: L. Ferreira
Author-X-Name-First: L.
Author-X-Name-Last: Ferreira
Author-Name: X.N. Zhu
Author-X-Name-First: X.N.
Author-X-Name-Last: Zhu
Title: High-Speed Rail Operations on an Existing Network: An Assessment Model for China
Abstract:
High-speed rail operations have the potential to reduce the
long-term decline in rail passenger travel demand for the medium to long
distance inter-urban markets. Such decline has been evident through most
of the industrialized countries where air and road transport tend to be
the dominant modes. In China, the operations of long distance high-speed
rail on fully dedicated track is not very easy to implement, due to the
high proportion of passengers who travel between high-speed and
conventional railways. An alternative approach would be to allow for mixed
operations with trains of various speeds on the same track. This article
puts forward a simulation model designed to allow an evaluation of the
most efficient distance for high-speed rail operations under mixed train
speed scenarios. The model takes into account the main operating
parameters such as passenger volumes, train speeds, capital and
maintenance costs, train operating costs and energy consumption. The
distance of high-speed train running on conventional rail that will yield
the most economic benefit can be estimated using the model. The article
includes the results of using the model for a specific example. It is
concluded that large-scale high-speed trains have the potential to be
successfully operated on conventional rail networks.
Journal: Transportation Planning and Technology
Pages: 239-254
Issue: 3
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/0308106022000019008
File-URL: http://hdl.handle.net/10.1080/0308106022000019008
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Handle: RePEc:taf:transp:v:25:y:2002:i:3:p:239-254
Template-Type: ReDIF-Article 1.0
Author-Name: Shoaib M. Chowdhury
Author-X-Name-First: Shoaib M.
Author-X-Name-Last: Chowdhury
Author-Name: Steven I-Jy Chien
Author-X-Name-First: Steven
Author-X-Name-Last: I-Jy Chien
Title: Intermodal Transit System Coordination
Abstract:
In urban areas where transit demand is widely spread, passengers
may be served by an intermodal transit system, consisting of a rail
transit line (or a bus rapid transit route) and a number of feeder routes
connecting at different transfer stations. In such a system, passengers
may need one or more transfers to complete their journey. Therefore,
scheduling vehicles operating in the system with special attention to
reduce transfer time can contribute significantly to service quality
improvements. Schedule synchronization may significantly reduce transfer
delays at transfer stations where various routes interconnect. Since
vehicle arrivals are stochastic, slack time allowances in vehicle
schedules may be desirable to reduce the probability of missed
connections. An objective total cost function, including supplier and user
costs, is formulated for optimizing the coordination of a general
intermodal transit network. A four-stage procedure is developed for
determining the optimal coordination status among routes at every transfer
station. Considering stochastic feeder vehicle arrivals at transfer
stations, the slack times of coordinated routes are optimized, by
balancing the savings from transfer delays and additional cost from slack
delays and operating costs. The model thus developed is used to optimize
the coordination of an intermodal transit network, while the impact of a
range of factors on coordination (e.g., demand, standard deviation of
vehicle arrival times, etc) is examined.
Journal: Transportation Planning and Technology
Pages: 257-287
Issue: 4
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/0308106022000019017
File-URL: http://hdl.handle.net/10.1080/0308106022000019017
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Handle: RePEc:taf:transp:v:25:y:2002:i:4:p:257-287
Template-Type: ReDIF-Article 1.0
Author-Name: Khaled El-Araby
Author-X-Name-First: Khaled
Author-X-Name-Last: El-Araby
Title: Cross-Border Traffic Management for Non-Recurrent Events in the Central European Alpine Region
Abstract:
This article presents a cross-border traffic management
framework to overcome problems based on major non-recurrent traffic events
such as large-scale road accidents or total road blockages by landslides
or extreme weather conditions impacting on traffic flow in the central
European Alpine region (i.e., Austria, Bavaria, Northern Italy and
Switzerland). The research on which the article is based aims at creating
and testing the feasibility of deploying Euro-Regional Traffic Management
Plans (TMPs) in case of such incidents to reduce the negative congestion
impacts and mitigate disruptions in traffic flow. It adopts an integrated
cross-border approach covering strategic and tactical transport management
measures within and between the central European Alpine region taking into
consideration both the technical and institutional issues involved in
cross-border traffic management. The research illustrates the current
traffic management situation and the possibilities and prospects for
integrated Euro-Regional transport management in the Alpine area using
both a scenario-based and model-based approach to develop and validate
TMPs. The preliminary results of the study provide a justification for
investment by national and European authorities to integrate dislocated
transport management measures into regional and Euro-regional transport
management strategies. The results show that the approach developed here
is applicable for full-scale validation and implementation across other
trans-European regions.
Journal: Transportation Planning and Technology
Pages: 289-310
Issue: 4
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/0308106022000018982
File-URL: http://hdl.handle.net/10.1080/0308106022000018982
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Handle: RePEc:taf:transp:v:25:y:2002:i:4:p:289-310
Template-Type: ReDIF-Article 1.0
Author-Name: Sameer A. Abu-Eisheh
Author-X-Name-First: Sameer A.
Author-X-Name-Last: Abu-Eisheh
Author-Name: Fred L. Mannering
Author-X-Name-First: Fred L.
Author-X-Name-Last: Mannering
Title: Forecasting Automobile Demand for Economies in Transition: A Dynamic Simultaneous-Equation System Approach
Abstract:
The dynamic characteristics of automobile demand are critical
for national economic and revenue predictions. Automobile demand and
ownership level forecasts are also the basis for travel demand models,
land-use-transport interaction models, and transport policies and
regulations. In this article, a dynamic automobile demand simulation model
is developed utilizing a simultaneous-equation system. The system
considers the interaction between supply and demand and the resulting
equilibrium. Although forecasting automobile demand has been previously
investigated, it has not been within such a dynamic simulation framework.
Our model includes the current and lagged automobile quantity and price
variables; economic, financial and operating cost variables; and income
and government policy variables. The capabilities of the model are then
demonstrated through performing a number of simulation experiments
considering various growth-development scenarios, changes in operating
costs, government policies towards automobile imports, and
demographic/employment shifts. Relevant tests are applied to examine the
econometric specifications and to evaluate the simulation model
performance.
Journal: Transportation Planning and Technology
Pages: 311-331
Issue: 4
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/0308106022000019026
File-URL: http://hdl.handle.net/10.1080/0308106022000019026
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Handle: RePEc:taf:transp:v:25:y:2002:i:4:p:311-331
Template-Type: ReDIF-Article 1.0
Author-Name: John Golias
Author-X-Name-First: John
Author-X-Name-Last: Golias
Author-Name: George Yannis
Author-X-Name-First: George
Author-X-Name-Last: Yannis
Author-Name: Michel Harvatis
Author-X-Name-First: Michel
Author-X-Name-Last: Harvatis
Title: Off-Street Parking Choice Sensitivity
Abstract:
This article deals with the determinants of choice between on-
and off-street parking. In this context, a questionnaire-based survey was
conducted and the stated preference method was used to develop an
explanatory model. The model assessment showed that parking cost has, as
expected, the most important impact on the choice of parking alternatives.
Furthermore, all other variables with a significant impact on parking
choice are time related, i.e., search time for a parking space, duration
of parking and walking time from the parking space to the final
destination. It is also shown that parking choice decisions did not depend
on driver and trip characteristics. The methodology followed can be used
in other similar cases for the identification of parking choice
sensitivity, thus providing valuable input to the development of
appropriate parking policy in a given area.
Journal: Transportation Planning and Technology
Pages: 333-348
Issue: 4
Volume: 25
Year: 2002
Month: 1
X-DOI: 10.1080/0308106022000019620
File-URL: http://hdl.handle.net/10.1080/0308106022000019620
File-Format: text/html
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Handle: RePEc:taf:transp:v:25:y:2002:i:4:p:333-348
Template-Type: ReDIF-Article 1.0
Author-Name: Peter Nijkamp
Author-X-Name-First: Peter
Author-X-Name-Last: Nijkamp
Title: Globalization, international transport and the global environment: A research and policy challenge
Journal: Transportation Planning and Technology
Pages: 1-8
Issue: 1
Volume: 26
Year: 2003
Month: 2
X-DOI: 10.1080/03081060309912
File-URL: http://hdl.handle.net/10.1080/03081060309912
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Handle: RePEc:taf:transp:v:26:y:2003:i:1:p:1-8
Template-Type: ReDIF-Article 1.0
Author-Name: Arjan Lejour
Author-X-Name-First: Arjan
Author-X-Name-Last: Lejour
Title: Globalization and the global environment: Four quantitative scenarios
Abstract:
This article presents a simulation of four quantitative
scenarios using the applied general equilibrium model WorldScan . The
scenarios are constructed to study the effects of globalization on
transport and the environment. They contain different assumptions on the
degree of globalization, technical progress, migration and energy
policies. WorldScan focuses on long-term economic growth, trade and
specialization patterns. It quantifies the economic content of the
scenarios and the volume growth of energy and emissions between 1995 and
2050. The scenario outcomes show that emission growth quadruples with high
economic growth without any energy-efficient technologies and
environmental legislation. However, in an ecological scenario which
combines energy-efficient technologies, environmental legislation and
modest economic growth, global emissions hardly increase.
Journal: Transportation Planning and Technology
Pages: 9-40
Issue: 1
Volume: 26
Year: 2003
Month: 2
X-DOI: 10.1080/03081060309911
File-URL: http://hdl.handle.net/10.1080/03081060309911
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Handle: RePEc:taf:transp:v:26:y:2003:i:1:p:9-40
Template-Type: ReDIF-Article 1.0
Author-Name: A.A.J. Nederveen
Author-X-Name-First: A.A.J.
Author-X-Name-Last: Nederveen
Author-Name: J.W. Konings
Author-X-Name-First: J.W.
Author-X-Name-Last: Konings
Author-Name: J.A. Stoop
Author-X-Name-First: J.A.
Author-X-Name-Last: Stoop
Title: Globalization, international transport and the global environment: Technological innovation, policy making and the reduction of transportation emissions
Abstract:
This article evaluates the opportunities and the feasibility of
technological innovations in transport systems in relation to goals of
mitigating global air pollution and climate change. The analytical
framework for this technological assessment is formed by the life cycle
theory, in which technological innovations are related to the development
phase of a transport system (introduction, growth, maturity and decline).
Based on a discussion on the driving forces for technological development
within the different modes of transport spearheads for technological
innovations are being presented. In addition, the role of the government
in exerting influence on these development paths is being discussed. The
analysis shows that the rate of technological change is slow and the
effectiveness of policies to encourage implementation of new transport
technologies to reduce emissions on a global scale is limited.
Technological innovations can contribute to the reduction of emissions in
the international transport sector, but it will be a long term process to
generate significant results.
Journal: Transportation Planning and Technology
Pages: 41-67
Issue: 1
Volume: 26
Year: 2003
Month: 2
X-DOI: 10.1080/03081060309908
File-URL: http://hdl.handle.net/10.1080/03081060309908
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Handle: RePEc:taf:transp:v:26:y:2003:i:1:p:41-67
Template-Type: ReDIF-Article 1.0
Author-Name: Barry Ubbels
Author-X-Name-First: Barry
Author-X-Name-Last: Ubbels
Author-Name: Caroline Rodenburg
Author-X-Name-First: Caroline
Author-X-Name-Last: Rodenburg
Author-Name: Peter Nijkamp
Author-X-Name-First: Peter
Author-X-Name-Last: Nijkamp
Title: A multi-layer scenario analysis for sustainable international transport
Abstract:
This article considers the development of the international
transport sector based on four globalization scenarios. These four images
of the future transportation market are constructed at three different
levels (global, European and Dutch). The possible consequences of these
scenarios are mapped out not only by key aspects such as modal split and
spatial organization but also by providing empirical insights into
expected transport flows for both passenger and freight transport in 2020
based on data from 1995.
Journal: Transportation Planning and Technology
Pages: 69-103
Issue: 1
Volume: 26
Year: 2003
Month: 2
X-DOI: 10.1080/03081060309910
File-URL: http://hdl.handle.net/10.1080/03081060309910
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Handle: RePEc:taf:transp:v:26:y:2003:i:1:p:69-103
Template-Type: ReDIF-Article 1.0
Author-Name: Xander Olsthoorn
Author-X-Name-First: Xander
Author-X-Name-Last: Olsthoorn
Title: Implications of globalization for co 2 emissions from transport
Abstract:
Transport accounts for about 25% of global CO 2 emissions.
Transport activities are on the rise in the coming decades. Would
associated CO 2 emissions move upwards as well, and at what rate? The
present paper explores the future of these CO 2 emissions, starting from
four scenarios for global transport. Considering fuel consumption, energy
efficiencies in transport, occupancy rates of transport means, size of
cars on the market, and possible environmental policies we find CO 2
emissions are persistently increasing, especially in the less wealthy
areas of the world. In Europe, policies that attempt to control mobility
and also limit CO 2 emissions may succeed in reducing emissions growth by
about 30%. Efforts to increase energy efficiency of transport, in
particular road transport, would contribute most to such reduction.
Journal: Transportation Planning and Technology
Pages: 105-133
Issue: 1
Volume: 26
Year: 2003
Month: 2
X-DOI: 10.1080/03081060309909
File-URL: http://hdl.handle.net/10.1080/03081060309909
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Handle: RePEc:taf:transp:v:26:y:2003:i:1:p:105-133
Template-Type: ReDIF-Article 1.0
Author-Name: O. Norojono
Author-X-Name-First: O.
Author-X-Name-Last: Norojono
Author-Name: W. Young
Author-X-Name-First: W.
Author-X-Name-Last: Young
Title: A Stated preference freight mode choice model
Abstract:
Transport policy aims to assist the transport system to work
more efficiently and effectively. An understanding of the reasons why
people choose to move freight in a certain manner is critical to the
development of appropriate policies. This article outlines a data
collection approach and the development of a disaggregate mode choice
model applicable to the analysis of freight shipper decision making. It
focuses on the choice between rail and road in Java, Indonesia. The model
indicates that safety, reliability and responsiveness are major attributes
influencing rail/road freight mode choice. Transport policies aimed at
improving these dimensions should increase the attractiveness of rail
transport.
Journal: Transportation Planning and Technology
Pages: 1-1
Issue: 2
Volume: 26
Year: 2003
Month: 4
X-DOI: 10.1080/715020600
File-URL: http://hdl.handle.net/10.1080/715020600
File-Format: text/html
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Handle: RePEc:taf:transp:v:26:y:2003:i:2:p:1-1
Template-Type: ReDIF-Article 1.0
Author-Name: Matteo Ignaccolo
Author-X-Name-First: Matteo
Author-X-Name-Last: Ignaccolo
Title: A Simulation model for airport capacity and delay analysis
Abstract:
Air traffic, worldwide, keeps growing strongly, creating
critical capacity situations and traffic congestion. As a consequence,
large delays are suffered by airlines, passengers and airport authorities
alike. When a rough estimate is needed, the results of traditional queuing
theory can be used to analyse airport runway systems, but when airports
are too congested or a more realistic description of the system behaviour
is necessary, a simulation approach is a good alternative. This article
outlines the limits of the analytical approach and shows how to build a
simulation procedure. This procedure is able to measure the performance of
an airport runway used only for arrivals, with different traffic mixes and
operational variables. The impact of future technological systems is also
considered, comparing their effects on various types of airports.
Journal: Transportation Planning and Technology
Pages: 135-170
Issue: 2
Volume: 26
Year: 2003
Month: 4
X-DOI: 10.1080/715020599
File-URL: http://hdl.handle.net/10.1080/715020599
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Handle: RePEc:taf:transp:v:26:y:2003:i:2:p:135-170
Template-Type: ReDIF-Article 1.0
Author-Name: Mohammad R. Tayyaran
Author-X-Name-First: Mohammad R.
Author-X-Name-Last: Tayyaran
Author-Name: Ata M. Khan
Author-X-Name-First: Ata M.
Author-X-Name-Last: Khan
Author-Name: Donald A. Anderson
Author-X-Name-First: Donald A.
Author-X-Name-Last: Anderson
Title: Impact of telecommuting and intelligent transportation systems on residential location choice
Abstract:
The impacts of telecommuting and intelligent transportation
systems (ITS) on urban development patterns were investigated in terms of
households' residential location choice decisions. A discrete choice
modelling approach framework was used. A stated preference (SP) logit
analysis was carried out to estimate the parameters of the utility
function. An attitude survey of employees of selected public and private
sector organizations in the Ottawa-Carleton Region (Canada) yielded the
required data for model estimation. In addition to obtaining background
information, the survey elicited SP responses by presenting a number of
hypothetical residential choice scenarios defined according to the
principles of SP experimental design. Results show that telecommuting and
ITS measures are highly significant factors in the residential choice
model. This leads to the conclusion that these reinforce dispersed
residential patterns and encourage moves towards outlying sites.
Implications of this conclusion for urban land development planning are
noted.
Journal: Transportation Planning and Technology
Pages: 171-193
Issue: 2
Volume: 26
Year: 2003
Month: 4
X-DOI: 10.1080/715020598
File-URL: http://hdl.handle.net/10.1080/715020598
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Handle: RePEc:taf:transp:v:26:y:2003:i:2:p:171-193
Template-Type: ReDIF-Article 1.0
Author-Name: MILICA KALIĆ
Author-X-Name-First: MILICA
Author-X-Name-Last: KALIĆ
Author-Name: DUŠAN TEODOROVIĆ
Author-X-Name-First: DUŠAN
Author-X-Name-Last: TEODOROVIĆ
Title: TRIP DISTRIBUTION MODELLING USING FUZZY LOGIC AND A GENETIC ALGORITHM
Abstract:
This article examines possibilities for the application of soft computing
techniques for the prediction of travel demand. The model, based on fuzzy
logic and a genetic algorithm, successfully solves the trip distribution
problem. The possibilities of using the proposed model in solving trip
generation, modal split and route choice problems have also been
indicated. The model has been tested on a real numerical example.
Exceptionally good correspondences between estimated and real values of
passenger flows have been obtained.
Journal: Transportation Planning and Technology
Pages: 213-238
Issue: 3
Volume: 26
Year: 2003
Month: 6
X-DOI: 10.1080/0308106032000154575
File-URL: http://hdl.handle.net/10.1080/0308106032000154575
File-Format: text/html
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Handle: RePEc:taf:transp:v:26:y:2003:i:3:p:213-238
Template-Type: ReDIF-Article 1.0
Author-Name: MILAN JANIC
Author-X-Name-First: MILAN
Author-X-Name-Last: JANIC
Title: ASSESSMENT AND MANAGEMENT OF QUALITY OF SERVICE AT AN AIRPORT PASSENGER TERMINAL
Abstract:
For the past two decades, the quality of service offered by an airport to
its users -- in this case, passengers and airlines -- has emerged as one
of its most important competitive tools. This period has been
characterised by a relatively stable growth in air traffic of an average
annual rate of 5%, enhanced deregulation (liberalisation) of air transport
markets, and privatisation of both the airline and airport industry in the
most important regions of the world such as north America and western
Europe. This article considers a methodology for the short-term assessment
and management of the quality of service provided to passengers while
passing through an airport passenger terminal.
Journal: Transportation Planning and Technology
Pages: 239-263
Issue: 3
Volume: 26
Year: 2003
Month: 6
X-DOI: 10.1080/03081060320001544601
File-URL: http://hdl.handle.net/10.1080/03081060320001544601
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Handle: RePEc:taf:transp:v:26:y:2003:i:3:p:239-263
Template-Type: ReDIF-Article 1.0
Author-Name: S. H. LEE
Author-X-Name-First: S. H.
Author-X-Name-Last: LEE
Title: AN APPROACH TO THE ECONOMIC APPRAISAL OF AVCS MAGLEV
Abstract:
The purpose of an economic appraisal of a transportation project is to
help select an efficient transportation investment plan. Here, efficiency
means achieving the best transportation service from a given investment
and the generation of net benefits at least as great as the costs of the
investment. In this article, three future transportation investment
alternatives in the USA are compared using the benefit-cost ratio method
to illustrate the economic desirability of the AVCS Maglev alternative --
an advanced vehicle control system based on magnetic levitation and
propulsion. For the completeness of the economic appraisal and the
provision of a guide to performing non-user benefit analysis for this
promising ITS technology, the socioeconomic effects of implementing AVCS
Maglev in the USA are evaluated based on the US National Development Model
(NDM).
Journal: Transportation Planning and Technology
Pages: 265-287
Issue: 3
Volume: 26
Year: 2003
Month: 6
X-DOI: 10.1080/0308106032000154584
File-URL: http://hdl.handle.net/10.1080/0308106032000154584
File-Format: text/html
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Handle: RePEc:taf:transp:v:26:y:2003:i:3:p:265-287
Template-Type: ReDIF-Article 1.0
Author-Name: Dusˇan Teodorovic´
Author-X-Name-First: Dusˇan
Author-X-Name-Last: Teodorovic´
Title: Transport modeling by multi-agent systems: a swarm intelligence approach
Abstract:
There are a number of emergent traffic and transportation phenomena that
cannot be analyzed successfully and explained using analytical models. The
only way to analyze such phenomena is through the development of models
that can simulate behavior of every agent. Agent-based modeling is an
approach based on the idea that a system is composed of decentralized
individual ‘agents’ and that each agent interacts with other
agents according to localized knowledge. The agent-based approach is a
‘bottom-up’ approach to modeling where special kinds of
artificial agents are created by analogy with social insects. Social
insects (including bees, wasps, ants and termites) have lived on Earth for
millions of years. Their behavior in nature is primarily characterized by
autonomy, distributed functioning and self-organizing capacities. Social
insect colonies teach us that very simple individual organisms can form
systems capable of performing highly complex tasks by dynamically
interacting with each other. On the other hand, a large number of
traditional engineering models and algorithms are based on control and
centralization. In this article, we try to obtain the answer to the
following question: Can we use some principles of natural swarm
intelligence in the development of artificial systems aimed at solving
complex problems in traffic and transportation?
Journal: Transportation Planning and Technology
Pages: 289-312
Issue: 4
Volume: 26
Year: 2003
Month: 8
X-DOI: 10.1080/0308106032000154593
File-URL: http://hdl.handle.net/10.1080/0308106032000154593
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Handle: RePEc:taf:transp:v:26:y:2003:i:4:p:289-312
Template-Type: ReDIF-Article 1.0
Author-Name: Cheng-Lung Wu
Author-X-Name-First: Cheng-Lung
Author-X-Name-Last: Wu
Author-Name: Robert E. Caves
Author-X-Name-First: Robert E.
Author-X-Name-Last: Caves
Title: Flight schedule punctuality control and management: a stochastic approach
Abstract:
The insufficiency of infrastructure capacity in an air transport system
is usually blamed for poor punctuality performance when implementing
flight schedules. However, investigations have revealed that ground
operations of airlines have become the second major cause of flight delay
at airports. A stochastic approach is used in this paper to model the
operation of aircraft turnaround and the departure punctuality of a
turnaround aircraft at an airport. The aircraft turnaround model is then
used to investigate the punctuality problem of turnaround aircraft. Model
results reveal that the departure punctuality of a turnaround aircraft is
influenced by the length of scheduled turnaround time, the arrival
punctuality of inbound aircraft as well as the operational efficiency of
aircraft ground services. The aircraft turnaround model proposed is then
employed to evaluate the endogenous schedule punctuality of two turnaround
aircraft. Model results, when compared with observation data, show that
the operational efficiency of aircraft ground services varies among
turnarounds. Hence, it is recommended that the improvement of departure
punctuality of turnaround aircraft may be achieved from two approaches:
airline scheduling control and the management of operational efficiency of
aircraft ground services.
Journal: Transportation Planning and Technology
Pages: 313-330
Issue: 4
Volume: 26
Year: 2003
Month: 8
X-DOI: 10.1080/03081060310001635869
File-URL: http://hdl.handle.net/10.1080/03081060310001635869
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Handle: RePEc:taf:transp:v:26:y:2003:i:4:p:313-330
Template-Type: ReDIF-Article 1.0
Author-Name: Eiji Kawamoto
Author-X-Name-First: Eiji
Author-X-Name-Last: Kawamoto
Title: Transferability of standardized regres Person-based approach sion model applied to person-based trip generation
Abstract:
In this paper, the transferability of person-based standardized
regression models is analysed using two large-scale origin-destination
household surveys with data collected in two Brazilian cities, Sa˜o
Paulo and Bauru. The models are specified in terms of dummy variables
linked to socio-economic attributes which are considered relevant. A
model, having home-based daily trips as a dependent variable, is
calibrated according to data from the Sa˜o Paulo Metropolitan Area
and transferred to Bauru, and vice-versa. The transferability of the
models is evaluated using the Wald test, which is an objective test
applicable to two samples presenting different variances. According to the
test, only standardized regression models are transferable. In addition,
the performance of the models to estimate the number of trips generated in
every zone of the urban areas is verified. The results indicate that the
performance of standardized regression models is equivalent to the locally
calibrated model.
Journal: Transportation Planning and Technology
Pages: 331-359
Issue: 4
Volume: 26
Year: 2003
Month: 8
X-DOI: 10.1080/03081060310001635896
File-URL: http://hdl.handle.net/10.1080/03081060310001635896
File-Format: text/html
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Handle: RePEc:taf:transp:v:26:y:2003:i:4:p:331-359
Template-Type: ReDIF-Article 1.0
Author-Name: Ikuho Yamada
Author-X-Name-First: Ikuho
Author-X-Name-Last: Yamada
Author-Name: Jean-Claude Thill
Author-X-Name-First: Jean-Claude
Author-X-Name-Last: Thill
Title: Enhancing stated preference surveys in transportation research: the contribution of geographic information systems
Abstract:
In this paper we argue that visualization, data management and
computational capabilities of geographic information systems (GIS) can
assist transportation stated preference research in capturing the
contextual complexity of many transportation decision environments by
providing respondents with maps and other spatial and non-spatial
information in graphical form that enhance respondents' understanding of
decision scenarios. We explore the multiple inherent contributions of GIS
to transportation stated preference data collection and propose a
framework for a GIS-based stated preference survey instrument. We also
present the design concepts of two survey prototypes and their GIS
implementation for a sample travel mode choice problem.
Journal: Transportation Planning and Technology
Pages: 377-396
Issue: 5
Volume: 26
Year: 2003
Month: 10
X-DOI: 10.1080/03081060310001635850
File-URL: http://hdl.handle.net/10.1080/03081060310001635850
File-Format: text/html
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Handle: RePEc:taf:transp:v:26:y:2003:i:5:p:377-396
Template-Type: ReDIF-Article 1.0
Author-Name: Yonghwa Park
Author-X-Name-First: Yonghwa
Author-X-Name-Last: Park
Author-Name: Seung B. Ahn
Author-X-Name-First: Seung B.
Author-X-Name-Last: Ahn
Title: Optimal assignment for check-in counters based on passenger arrival behaviour at an airport
Abstract:
Establishing how to utilize check-in counters at airport passenger
terminals efficiently is a major concern facing airport operators and
airlines. Inadequate terminal capacity and the inefficient utilization of
facilities such as check-in counters are major factors causing congestion
and delays at airport passenger terminals. However, such delays and
congestion can be reduced by increasing the efficiency of check-in counter
operations, based on an understanding of passengers' airport access
behaviour. This paper presents an assignment model for check-in counter
operations, based on passengers' airport arrival patterns. In setting up
the model, passenger surveys are used to determine when passengers arrive
at the airport terminals relative to their flight departure times. The
model then uses passenger arrival distribution patterns to calculate the
most appropriate number of check-in counters and the duration of time that
each counter should be operated. This assignment model has been applied at
the Seoul Gimpo International Airport in Korea. The model provides not
only a practical system for the efficient operations of time-to-time
check-in counter assignments, but also a valuable means of developing
effective longer-term solutions to the problem of passenger terminal
congestion and delays. It also offers airlines a means of operating
check-in counters with greater cost effectiveness, thus leading to
enhanced customer service.
Journal: Transportation Planning and Technology
Pages: 397-416
Issue: 5
Volume: 26
Year: 2003
Month: 10
X-DOI: 10.1080/03081060310001635887
File-URL: http://hdl.handle.net/10.1080/03081060310001635887
File-Format: text/html
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Handle: RePEc:taf:transp:v:26:y:2003:i:5:p:397-416
Template-Type: ReDIF-Article 1.0
Author-Name: Cheng-Lung Wu
Author-X-Name-First: Cheng-Lung
Author-X-Name-Last: Wu
Author-Name: Robert E. Caves
Author-X-Name-First: Robert E.
Author-X-Name-Last: Caves
Title: The punctuality performance of aircraft rotations in a network of airports
Abstract:
The aim of this paper is to investigate the influence of aircraft
turnaround performance at airports on the schedule punctuality of aircraft
rotations in a network of airports. A mathematical model is applied,
composed of two sub-models, namely the aircraft turnaround model
(turnaround simulations) and the enroute model (enroute flight time
simulations). A Markovian type model is featured in the aircraft
turnaround model to simulate the operation of aircraft turnarounds at an
airport by considering operational uncertainties and schedule punctuality
variance. In addition, stochastic Monte Carlo simulations are employed to
carry out stochastic sampling and simulations in both the aircraft
turnaround model and the enroute model. Results of simulations show the
robustness of the aircraft rotation model in capturing uncertainties from
aircraft rotations. The propagation of knock-on delays in aircraft
rotations is found to be significant when the short-connection-time policy
is used by an airline at its hub airport. It is also found that the proper
inclusion of schedule buffer time in the aircraft rotation schedule helps
control the propagation of knock-on delays and, therefore, stabilize the
punctuality performance of aircraft rotations.
Journal: Transportation Planning and Technology
Pages: 417-436
Issue: 5
Volume: 26
Year: 2003
Month: 10
X-DOI: 10.1080/03081060310001635878
File-URL: http://hdl.handle.net/10.1080/03081060310001635878
File-Format: text/html
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Handle: RePEc:taf:transp:v:26:y:2003:i:5:p:417-436
Template-Type: ReDIF-Article 1.0
Author-Name: Marina Van Geenhuizen
Author-X-Name-First: Marina
Author-X-Name-Last: Van Geenhuizen
Author-Name: Harry Geerlings
Author-X-Name-First: Harry
Author-X-Name-Last: Geerlings
Author-Name: Hugo Priemus
Author-X-Name-First: Hugo
Author-X-Name-Last: Priemus
Title: Transport Innovation: Coping with the Future
Abstract:
An efficient transport system is a crucial precondition for
economic development and an asset in international mobility. Mobility of
passengers and transport of goods are considered key elements for a modern
society. The transport sector is also a sector of continuous technological
innovation. However, there is considerable uncertainty surrounding future
transport technology and policy, as well as a large variation in ways to
deal with this uncertainty. With regard to the latter it may be helpful to
use more than one foresight method, e.g. a combination of methods each
with a different emphasis on expertise, creativity and interaction with
actors. Such a multiple method approach allows for the identification of
those futures or future developments that are robust. This paper provides
an introduction to the topic of transport innovation as well as providing
a context for the four papers which follow in this special issue,
illustrating the importance of taking such a multiple method approach.
Journal: Transportation Planning and Technology
Pages: 437-447
Issue: 6
Volume: 26
Year: 2003
Month: 12
X-DOI: 10.1080/0308106032000167346
File-URL: http://hdl.handle.net/10.1080/0308106032000167346
File-Format: text/html
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Handle: RePEc:taf:transp:v:26:y:2003:i:6:p:437-447
Template-Type: ReDIF-Article 1.0
Author-Name: Marina Van Geenhuizen
Author-X-Name-First: Marina
Author-X-Name-Last: Van Geenhuizen
Author-Name: Peter Nijkamp
Author-X-Name-First: Peter
Author-X-Name-Last: Nijkamp
Title: Coping with uncertainty: an expedition into the field of new transport technology
Abstract:
Many decisions taken by mankind are rational only to a
limited extent. This holds for individual travel behaviour, but also for
long-range strategic decisions on transport systems or transport
technology. In any decision problem, coping with uncertainty is the most
critical element. The introduction of new transport technology is
surrounded by uncertainty. For example, there is uncertainty about the
pace and extent of adoption of new technology and there is uncertainty
about the impact of new technology in terms of increased sustainability or
increased efficiency. This article maps uncertainty surrounding new
transport technology and identifies ways in which to deal with uncertainty
in policy making. The findings will be illustrated with electric vehicles,
particularly with two specific strategies to deal with uncertainty:
interactive technology watching and experimentation in a market niche. The
paper concludes with a discussion of success factors that influence the
outcomes of such strategies.
Journal: Transportation Planning and Technology
Pages: 449-467
Issue: 6
Volume: 26
Year: 2003
Month: 12
X-DOI: 10.1080/0308106032000167355
File-URL: http://hdl.handle.net/10.1080/0308106032000167355
File-Format: text/html
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Handle: RePEc:taf:transp:v:26:y:2003:i:6:p:449-467
Template-Type: ReDIF-Article 1.0
Author-Name: Harry Geerlings
Author-X-Name-First: Harry
Author-X-Name-Last: Geerlings
Author-Name: Sytze Rienstra
Author-X-Name-First: Sytze
Author-X-Name-Last: Rienstra
Title: Exploring 'weak signals'' as potential challenges in transport: an inventory of potential future technology developments
Abstract:
This article assesses the most likely technological
developments in transport, not only by investigating current innovations
but also by observing different approaches to confronting future
developments. The article discusses technology forecasting and the meaning
of environmentally sound technologies; some insights into technology
development and the relevance of technological forecasting; the factors
that influence technology development in transport; and, in this context,
differentiation between exploration, expectation and forecasting. It goes
on to identify, from four different perspectives, major developments of
strategic relevance for the transport sector that might arise in the
longer term. An assessment is made of the consequences of these
observations for the implementation of innovations in transport.
Journal: Transportation Planning and Technology
Pages: 469-489
Issue: 6
Volume: 26
Year: 2003
Month: 12
X-DOI: 10.1080/0308106032000167364
File-URL: http://hdl.handle.net/10.1080/0308106032000167364
File-Format: text/html
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Handle: RePEc:taf:transp:v:26:y:2003:i:6:p:469-489
Template-Type: ReDIF-Article 1.0
Author-Name: Milan Janic
Author-X-Name-First: Milan
Author-X-Name-Last: Janic
Title: Multicriteria Evaluation of High-speed Rail, Transrapid Maglev and Air Passenger Transport in Europe
Abstract:
This article deals with a multicriteria evaluation of
High-Speed Rail, Transrapid Maglev and Air Passenger Transport in Europe.
Operational, socio-economic and environmental performance indicators of
the specific high-speed transport systems are adopted as the evaluation
criteria. By using the entropy method, weights are assigned to particular
criteria in order to indicate their relative importance in
decision-making. The TOPSIS method is applied to carry out the
multicriteria evaluation and selection of the preferable alternative
(high-speed system) under given circumstances.
Journal: Transportation Planning and Technology
Pages: 491-512
Issue: 6
Volume: 26
Year: 2003
Month: 12
X-DOI: 10.1080/0308106032000167373
File-URL: http://hdl.handle.net/10.1080/0308106032000167373
File-Format: text/html
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Handle: RePEc:taf:transp:v:26:y:2003:i:6:p:491-512
Template-Type: ReDIF-Article 1.0
Author-Name: Dominic Stead
Author-X-Name-First: Dominic
Author-X-Name-Last: Stead
Author-Name: David Banister
Author-X-Name-First: David
Author-X-Name-Last: Banister
Title: Transport policy scenario-building
Abstract:
Long-term planning decisions must be as robust as possible to
withstand such changes in the policy-making environment. This calls for a
new approach for identifying how policies might fare under different types
of conditions and for identifying robust no-regrets strategies. This paper
outlines a systematic and logical framework for the development of policy
scenarios and shows how scenarios can be used in the analysis of future
policy options. The article discusses how scenario analysis can be used to
identify, anticipate and assess policy options for the future in an
environment of uncertainty, mainly using examples of transport policy in
Europe.
Journal: Transportation Planning and Technology
Pages: 513-536
Issue: 6
Volume: 26
Year: 2003
Month: 12
X-DOI: 10.1080/0308106032000167382
File-URL: http://hdl.handle.net/10.1080/0308106032000167382
File-Format: text/html
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Handle: RePEc:taf:transp:v:26:y:2003:i:6:p:513-536
Template-Type: ReDIF-Article 1.0
Author-Name: Liping Fu
Author-X-Name-First: Liping
Author-X-Name-Last: Fu
Title: A fuzzy queuing model for real-time, adaptive prediction of incident delay for ATMS/ATIS
Abstract:
This paper presents a fuzzy queuing model that can be used to predict the
possible delay that a vehicle will experience at an incident location
based on real-time information on current queuing conditions,
traffic arrivals, lane closings. Compared to most existing methods, the
proposed model is unique in three aspects. First, it explicitly accounts
for uncertainties involved in all influencing factors and thus allows easy
incorporation of imprecise and vague information typically available in
this type of prediction environment. Second, the model is adaptive in the
way that it allows continuous update of estimates as new information is
made available. Third, delays obtained from the model are fuzzy numbers
that can be conveniently mapped to linguistic terms for use in systems
such as changeable message signs (CMS). A case study is presented to
demonstrate the application of the proposed model in facilitating the
composition of location-dependent delay messages for CMS.
Journal: Transportation Planning and Technology
Pages: 1-23
Issue: 1
Volume: 27
Year: 2003
Month: 12
X-DOI: 10.1080/0308106042000184436
File-URL: http://hdl.handle.net/10.1080/0308106042000184436
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2003:i:1:p:1-23
Template-Type: ReDIF-Article 1.0
Author-Name: Cheng-Lung Wu
Author-X-Name-First: Cheng-Lung
Author-X-Name-Last: Wu
Author-Name: Robert E. Caves
Author-X-Name-First: Robert E.
Author-X-Name-Last: Caves
Title: Modelling and simulation of aircraft turnaround operations at airports
Abstract:
A new approach for the investigation of aircraft turnaround operation
performance at airports is proposed in this paper. A Markovian type
simulation model is used to simulate operational uncertainties arising
from aircraft turnaround operations. Monte Carlo Simulation techniques are
implemented to carry out stochastic simulations in order to capture the
stochastic effects of flight punctuality and operational uncertainties.
Two sets of flight data collected in a period of three months from a
European airline are used in case studies. Simulation results, when
compared with observations, show the close relationship between the
departure punctuality of a turnaround aircraft and the length of scheduled
turnaround time of an aircraft. It is concluded that the inherent schedule
punctuality of a flight schedule is influenced by two factors: the amount
of schedule buffer time included in the ground time of an aircraft and the
operational efficiency of the turnaround. In addition, the proposed
aircraft turnaround model is also a suitable managerial tool for airlines
and aircraft ground service providers to evaluate the operational
efficiency of turnaround operations.
Journal: Transportation Planning and Technology
Pages: 25-46
Issue: 1
Volume: 27
Year: 2003
Month: 10
X-DOI: 10.1080/0308106042000184445
File-URL: http://hdl.handle.net/10.1080/0308106042000184445
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2003:i:1:p:25-46
Template-Type: ReDIF-Article 1.0
Author-Name: Cheng-Lung Wu
Author-X-Name-First: Cheng-Lung
Author-X-Name-Last: Wu
Author-Name: Robert E. Caves
Author-X-Name-First: Robert E.
Author-X-Name-Last: Caves
Title: Modelling and optimization of aircraft turnaround time at an airport
Abstract:
Gate-to-gate punctuality has long been the operational goal
of the air transport industry. In this paper, an analytical model is
proposed to simulate the efficiency of aircraft turnaround operations at
airports. Scenarios for different aircraft punctuality performance have
been modelled and tested. The concept of scheduling buffer time into the
ground time of aircraft turnaround operations is introduced in the model
at the expense of reducing aircraft productivity to minimize system costs
from operational uncertainties. Stochastic functions are employed to
simulate the inbound punctuality of arrival aircraft in order to take into
account the punctuality uncertainties from the operation of flight
schedules. Flight data from a European carrier is used to validate the
model. Analyses show that the proper use of schedule buffer time in
aircraft turnaround time can minimize system costs by balancing
trade-offs between schedule punctuality and aircraft utilization.
Journal: Transportation Planning and Technology
Pages: 47-66
Issue: 1
Volume: 27
Year: 2003
Month: 10
X-DOI: 10.1080/0308106042000184454
File-URL: http://hdl.handle.net/10.1080/0308106042000184454
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2003:i:1:p:47-66
Template-Type: ReDIF-Article 1.0
Author-Name: Iljoon Chang
Author-X-Name-First: Iljoon
Author-X-Name-Last: Chang
Author-Name: Gang-len Chang *
Author-X-Name-First: Gang-len
Author-X-Name-Last: Chang *
Title: A network-based model for estimating the market share of a new high-speed rail system
Abstract:
This paper presents a novel application of static traffic assignment
methods, but with a variable time value, for estimating the market share
of high-speed rail (HSR) in the northwest--southeast (NW--SE)
corridor of Korea currently served by air, conventional rail and highway
modes. The proposed model employs a time--space network structure to
capture the interrelations among competing transportation modes, and to
reflect their supply- and demand-side constraints as well as
interactions through properly formulated link-node structures. The
embedded cost function for each network link offers the flexibility for
incorporating all associated factors, such as travel time and fare, in the
model computation, and enables the use of a distribution rather than a
constant to represent the time--value variation among all transportation
mode users. To capture the value-of-time (VOT) of tripmakers
along the target corridor realistically, this study has developed a
calibration method with aggregate demand information and key system
performance data from the NW--SE corridor.
Journal: Transportation Planning and Technology
Pages: 67-90
Issue: 2
Volume: 27
Year: 2004
Month: 3
X-DOI: 10.1080/0308106042000218186
File-URL: http://hdl.handle.net/10.1080/0308106042000218186
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:2:p:67-90
Template-Type: ReDIF-Article 1.0
Author-Name: T. Andersson *
Author-X-Name-First: T.
Author-X-Name-Last: Andersson *
Author-Name: P. Värbrand
Author-X-Name-First: P.
Author-X-Name-Last: Värbrand
Title: The flight perturbation problem
Abstract:
Airlines spend considerable time, effort and financial resources on
planning. It is essential to create a competitive timetable and construct
a fleet and a crew schedule that utilizes these resources to the maximum.
Unfortunately, it is all too common that an airline is faced with the
necessity of reconstructing their schedules due to some unforeseen event,
for example an aircraft breakdown or a crew member that is indisposed. In
this paper, an application that can help airlines solve the complex
problem of reconstructing aircraft schedules is presented. A mixed integer
multicommodity flow model with side constraints is developed and further
reformulated into a set packing model using the Dantzig—Wolfe
decomposition. Cancellations, delays and aircraft swaps are used to
resolve the perturbation, and the model ensures that the schedule returns
to normal within a certain time. Two column generation schemes for
heuristically solving the model are tested on real problem data obtained
from a Swedish domestic airline. The computational tests show that the
application is capable of presenting high quality solutions in a few
seconds and therefore can be used as a dynamic decision support tool by
the airlines.
Journal: Transportation Planning and Technology
Pages: 91-117
Issue: 2
Volume: 27
Year: 2004
Month: 3
X-DOI: 10.1080/0308106042000218195
File-URL: http://hdl.handle.net/10.1080/0308106042000218195
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:2:p:91-117
Template-Type: ReDIF-Article 1.0
Author-Name: Satish Sharma
Author-X-Name-First: Satish
Author-X-Name-Last: Sharma
Author-Name: Pawan Lingras *
Author-X-Name-First: Pawan
Author-X-Name-Last: Lingras *
Author-Name: Ming Zhong
Author-X-Name-First: Ming
Author-X-Name-Last: Zhong
Title: Effect of missing values estimations on traffic parameters
Abstract:
Estimating missing values is known as data imputation. The proper
imputation of missing values of permanent traffic counts (PTCs) could
result in significant cost savings for highway agencies in their traffic
data programs. However, little research has been done on missing values
and only limited research has used factor or time series analysis models
for predicting them. Moreover, studies of the effect of the imputations on
traffic parameters estimations are not available. This study used factor
models, genetically designed neural network and regression models, and
autoregressive integrated moving average (ARIMA) models to update
pseudo-missing values of six PTCs from Alberta, Canada. The
influences of these imputations on the estimations of annual average daily
traffic (AADT) and design hourly volume (DHV) were studied. It was found
that simple models usually resulted in large AADT and DHV estimation
errors. As models were refined, resulting estimations for individual
missing hourly volumes significantly improved. Usually these models
provided highly accurate AADT and DHV estimations.
Journal: Transportation Planning and Technology
Pages: 119-144
Issue: 2
Volume: 27
Year: 2004
Month: 3
X-DOI: 10.1080/0308106042000218203
File-URL: http://hdl.handle.net/10.1080/0308106042000218203
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:2:p:119-144
Template-Type: ReDIF-Article 1.0
Author-Name: Elvezia M. Cepolina
Author-X-Name-First: Elvezia M.
Author-X-Name-Last: Cepolina
Author-Name: Nick Tyler
Author-X-Name-First: Nick
Author-X-Name-Last: Tyler
Title: Microscopic simulation of pedestrians in accessibility evaluation
Abstract:
Evaluation of accessibility is of increasing importance to the design of
the public realm -- including both the built and moving environments and
particularly the interface between them. This is of particular relevance
to people who are living on the ‘margins of accessibility’,
for example, elderly or disabled people. This paper discusses the
interactions between a person, the environment and the activities they
wish to pursue, and proposes a model that incorporates the concept of
‘capabilities’. The paper then describes how the
systematization of these concepts could be tested by incorporating them in
a microscopic simulation model of pedestrian activity. A worked example is
used to demonstrate how the conceptual approach could yield consistent
results under these circumstances. The paper concludes that the conceptual
model provides a good basis for the evaluation of accessibility and that
the microscopic simulation model incorporating these characteristics would
be a useful way of testing pedestrian--environment interactions.
Journal: Transportation Planning and Technology
Pages: 145-180
Issue: 3
Volume: 27
Year: 2004
Month: 4
X-DOI: 10.1080/0308106042000228734
File-URL: http://hdl.handle.net/10.1080/0308106042000228734
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:3:p:145-180
Template-Type: ReDIF-Article 1.0
Author-Name: Michael J. Clay *
Author-X-Name-First: Michael J.
Author-X-Name-Last: Clay *
Author-Name: Patricia L. Mokhtarian
Author-X-Name-First: Patricia L.
Author-X-Name-Last: Mokhtarian
Title: Personal travel management: the adoption and consideration of travel-related strategies
Abstract:
Traveler behavior plays a role in the effectiveness of travel demand
management (TDM) policies. Personal travel management is explored in this
paper by analyzing individuals' adoption and consideration of 17
travel-related alternatives in relation to
socio-demographic, mobility, travel-related attitude,
personality and lifestyle preference variables. The sample comprises 1282
commuters living in urban and suburban neighborhoods of the San Francisco
Bay Area. Among the findings: females were more likely to have
adopted/considered the more ‘costly’ strategies; those with
higher mobility were more likely to have adopted/considered
travel-maintaining as well as travel-reducing strategies;
and those who like travel and want to do more are less likely to consider
travel-reducing strategies. These findings, when combined with
those of earlier work on this subject, present a compelling argument for
the need to further understand traveler behavior -- particularly in
response to congestion and TDM policies.
Journal: Transportation Planning and Technology
Pages: 181-209
Issue: 3
Volume: 27
Year: 2004
Month: 6
X-DOI: 10.1080/0308106042000226907
File-URL: http://hdl.handle.net/10.1080/0308106042000226907
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Handle: RePEc:taf:transp:v:27:y:2004:i:3:p:181-209
Template-Type: ReDIF-Article 1.0
Author-Name: Steven I. Chien *
Author-X-Name-First: Steven I.
Author-X-Name-Last: Chien *
Author-Name: Zhaoqiong Qin
Author-X-Name-First: Zhaoqiong
Author-X-Name-Last: Qin
Title: Optimization of bus stop locations for improving transit accessibility
Abstract:
A mathematical model is developed in this paper to improve the
accessibility of a bus service. To formulate the optimization model, a
segment of a bus route is given, on which a number of demand entry points
are distributed realistically. The objective total cost function (i.e. the
sum of supplier and user costs) is minimized by optimizing the number and
locations of stops, subject to non-additive users' value of time. A
numerical example is designed to demonstrate the effectiveness of the
method thus developed to optimize the bus stop location problem. The
sensitivity of the total cost to various parameters (e.g. value of users'
time, access speed, and demand density) and the effect of the parameters
on the optimal stop locations are analyzed and discussed.
Journal: Transportation Planning and Technology
Pages: 211-227
Issue: 3
Volume: 27
Year: 2004
Month: 6
X-DOI: 10.1080/0308106042000226899
File-URL: http://hdl.handle.net/10.1080/0308106042000226899
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:3:p:211-227
Template-Type: ReDIF-Article 1.0
Author-Name: J. Enrique Fernández L.
Author-X-Name-First: J. Enrique
Author-X-Name-Last: Fernández L.
Author-Name: Joaquín De Cea Ch
Author-X-Name-First: Joaquín
Author-X-Name-Last: De Cea Ch
Author-Name: Ricardo Giesen E
Author-X-Name-First: Ricardo
Author-X-Name-Last: Giesen E
Title: A strategic model of freight operations for rail transportation systems
Abstract:
This paper formulates and analyzes a new strategic model for
freight rail transportation systems. The objective of the model is
predicting equilibrium flows and levels of service, given
origin-destination (O-D) transportation demands for a set of different
products. The model has the following distinctive characteristics: (1) a
detailed representation of different freight rail yard operations is made
and railway services with their operational characteristics are considered
explicitly; (2) priorities are assigned to different types of freight cars
to be moved, depending on the products transported; (3) the distribution
of empty freight cars and their assignment over the rail network is
treated simultaneously with the assignment of products to be transported;
and (4) capacity constraints are considered for the movement of various
products. Solution approaches are discussed. The model can be used to
evaluate freight railway systems, including yard operations and rail
services management policies.
Journal: Transportation Planning and Technology
Pages: 231-260
Issue: 4
Volume: 27
Year: 2004
Month: 8
X-DOI: 10.1080/0308106042000228743
File-URL: http://hdl.handle.net/10.1080/0308106042000228743
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:4:p:231-260
Template-Type: ReDIF-Article 1.0
Author-Name: Fernando Marín Martínez
Author-X-Name-First: Fernando Marín
Author-X-Name-Last: Martínez
Author-Name: Isabel García Gutiérrez
Author-X-Name-First: Isabel García
Author-X-Name-Last: Gutiérrez
Author-Name: Alberto Ortiz Oliveira
Author-X-Name-First: Alberto Ortiz
Author-X-Name-Last: Oliveira
Author-Name: Luis Miguel Arreche Bedia
Author-X-Name-First: Luis Miguel Arreche
Author-X-Name-Last: Bedia
Title: Gantry crane operations to transfer containers between trains: A simulation study of a Spanish terminal
Abstract:
Freight transfer operations are critical in combined transport
networks. In this paper a simulation model and modelling approach to the
transfer of cargo between trains at rail terminals is presented. The model
is used to study the Port-Bou terminal, the main intermodal terminal at
the Spanish-French frontier. Four different gantry crane operation modes
to interchange containers between trains are evaluated. These operation
rules are tested in several scenarios to examine the critical factors of
the system and the best operation rule for each situation. Latest
generation software is used to develop the model that incorporates modular
programming and enhanced graphic systems for output representation. It
allows a dynamic display of the simulated system and, likewise, the
possibility of developing modules that can be reused in other studies. The
research shows how simulation can be a useful planning tool in the rail
transportation context.
Journal: Transportation Planning and Technology
Pages: 261-284
Issue: 4
Volume: 27
Year: 2004
Month: 8
X-DOI: 10.1080/0308106042000263069
File-URL: http://hdl.handle.net/10.1080/0308106042000263069
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:4:p:261-284
Template-Type: ReDIF-Article 1.0
Author-Name: Abraham Akkerman
Author-X-Name-First: Abraham
Author-X-Name-Last: Akkerman
Author-Name: Yewon Hwang-Kurylyk
Author-X-Name-First: Yewon
Author-X-Name-Last: Hwang-Kurylyk
Title: The origin-destination matrix as an indicator of intrahousehold travel allocation
Abstract:
Subareas throughout a city may be viewed as both daytime
destinations for some persons as well as residence (or nighttime)
locations for some households. Associated with the average household in
each subarea is the distribution of its members by their daytime
destinations. Travel allocation of individuals by their principal subarea
of daytime destination can be thus constructed for the average household
in each subarea throughout a city. Intrahousehold allocation of daytime
destinations can thus be represented in a convenient tabular form, the
household composition matrix. Further interpretation shows the household
composition matrix to be a special case of an origin-destination (O-D)
matrix representing commuter volumes between subareas of nighttime and
daytime location. Formal features of the household composition matrix,
furthermore, render it equivalent to the Leontief input-output matrix. The
relationship between intrahousehold travel allocation and household
composition, as an O-D matrix, emerges to be of particular importance
within the context of Leontief's input-output concept. Application to the
Seoul Metropolitan Area indicates a discernable pattern in intrahousehold
travel allocation when ordering of the household composition matrix is
based on ratios between daytime and nighttime populations across the
city's subareas.
Journal: Transportation Planning and Technology
Pages: 285-314
Issue: 4
Volume: 27
Year: 2004
Month: 8
X-DOI: 10.1080/0308106042000263078
File-URL: http://hdl.handle.net/10.1080/0308106042000263078
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:4:p:285-314
Template-Type: ReDIF-Article 1.0
Author-Name: Marco Diana
Author-X-Name-First: Marco
Author-X-Name-Last: Diana
Title: Innovative systems for the transportation disadvantaged: Toward more efficient and operationally usable planning tools
Abstract:
When considering innovative forms of public transport for
specific groups, such as demand responsive services, the challenge is to
find a good balance between operational efficiency and 'user friendliness'
of the scheduling algorithm even when specialized skills are not
available. Regret insertion-based processes have shown their effectiveness
in addressing this specific concern. We introduce a new class of hybrid
regret measures to understand better why the behaviour of this kind of
heuristic is superior to that of other insertion rules. Our analyses show
the importance of keeping a good balance between short- and long-term
strategies during the solution process. We also use this methodology to
investigate the relationship between the number of vehicles needed and
total distance covered - the key point of any cost analysis striving for
greater efficiency. Against expectations, in most cases decreasing fleet
size leads to savings in vehicle mileage, since the heuristic solution is
still far from optimality.
Journal: Transportation Planning and Technology
Pages: 315-331
Issue: 4
Volume: 27
Year: 2004
Month: 8
X-DOI: 10.1080/0308106042000263087
File-URL: http://hdl.handle.net/10.1080/0308106042000263087
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:4:p:315-331
Template-Type: ReDIF-Article 1.0
Author-Name: Yvonne Bontekoning
Author-X-Name-First: Yvonne
Author-X-Name-Last: Bontekoning
Author-Name: Hugo Priemus
Author-X-Name-First: Hugo
Author-X-Name-Last: Priemus
Title: Breakthrough innovations in intermodal freight transport
Abstract:
Breakthrough innovations, whether technological, organizational
or both, are a necessity if the market share of intermodal freight
transport is to expand. The main growth potential lies in the markets for
flows over short distances, for perishable and high-value commodities, for
small consignments, and for flows that demand speed, reliability and
flexibility. It will take radical innovations to produce a breakthrough in
the modal split and allow these new markets to be conquered. This special
issue is based on papers presented at an international conference on
freight transport automation and multimodality, held in Delft in May 2002,
that are illustrative of the direction of breakthrough research and
development (R&D) aimed at increasing the market share for intermodal
transport.
Journal: Transportation Planning and Technology
Pages: 335-345
Issue: 5
Volume: 27
Year: 2004
Month: 10
X-DOI: 10.1080/0308106042000273031
File-URL: http://hdl.handle.net/10.1080/0308106042000273031
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:5:p:335-345
Template-Type: ReDIF-Article 1.0
Author-Name: Harald Rotter
Author-X-Name-First: Harald
Author-X-Name-Last: Rotter
Title: New operating concepts for intermodal transport: The mega hub in Hanover/Lehrte in Germany
Abstract:
In intermodal logistics, combined transport operators and
railway companies are engaged in the development of efficient block train
concepts. The proportion of transport using single railway wagons is
decreasing because of its poor time-quality ratio. In future, transport
services will be focussed on industrial zones and large cities that offer
the transport volumes required for direct train operation. In this regard,
it will become more difficult for regions with smaller load volumes to be
integrated into a combined transport network. In order to confront this
trend, new concepts for bundling transport volumes have to be developed.
One such concept is the 'mega hub'. The core idea is to interchange load
units between several block trains during a short stop at an intermodal
terminal. The paper provides an overview of the operating concept of the
mega hub and the opportunities for intermodal transport operators.
Journal: Transportation Planning and Technology
Pages: 347-365
Issue: 5
Volume: 27
Year: 2004
Month: 10
X-DOI: 10.1080/0308106042000273022
File-URL: http://hdl.handle.net/10.1080/0308106042000273022
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:5:p:347-365
Template-Type: ReDIF-Article 1.0
Author-Name: Joseph Evers
Author-X-Name-First: Joseph
Author-X-Name-Last: Evers
Author-Name: Ronald de Feijter
Author-X-Name-First: Ronald
Author-X-Name-Last: de Feijter
Title: Centralized versus distributed feeder ship service: The case of the Maasvlakte harbour area of Rotterdam
Abstract:
Coastal and inland feeder shipping is a critical factor for
intercontinental container transport. The question is whether each
intercontinental terminal should be equipped with its own service stations
for feeder shipping, or whether pooling of the facilities would be more
effective. For this paper, the service station examined for the service of
feeder ships is equipped with two quay cranes operating in parallel
supported by a small active quay stack. The centre for this feeder service
consists of several of these stations. Simulation shows that a crane
productivity of 96% is feasible with an average vehicle waiting time of 1
min, that a central service requires fewer service stations than a
distributed service and that the quay transport for central and
distributed transport requires the same number of terminal vehicles. The
analysis shows that a centralized service is preferable, attracting 70% of
the market potential.
Journal: Transportation Planning and Technology
Pages: 367-384
Issue: 5
Volume: 27
Year: 2004
Month: 10
X-DOI: 10.1080/0308106042000273013
File-URL: http://hdl.handle.net/10.1080/0308106042000273013
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:27:y:2004:i:5:p:367-384
Template-Type: ReDIF-Article 1.0
Author-Name: Ingo Hansen
Author-X-Name-First: Ingo
Author-X-Name-Last: Hansen
Title: Automated shunting of rail container wagons in ports and terminal areas
Abstract:
The development of intermodal container transport is hampered in
part by the cost associated with the shunting of trains in marshalling
yards, inland and port railway terminals. Many new technologies have been
developed in the past decade, but have still not been applied because of
high capital investment costs, lack of sufficient market demand and
uncertain rates of return. The key for increasing the competitiveness of
intermodal container transport by rail is the operation of heavy haul
container trains between port and inland railway terminals more frequently
with fast, flexible and automatic transhipment, shunting and coupling of
container wagons. The operation of self-driven railcars equipped with
automatic centre coupling on terminal tracks, which can also be
train-hauled on conventional hinterland railway lines, would enable a
reduction of shunting and transhipment time and costs in intermodal
container terminals by more than 30%.
Journal: Transportation Planning and Technology
Pages: 385-401
Issue: 5
Volume: 27
Year: 2004
Month: 10
X-DOI: 10.1080/0308106042000280501
File-URL: http://hdl.handle.net/10.1080/0308106042000280501
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:5:p:385-401
Template-Type: ReDIF-Article 1.0
Author-Name: Fredrik Bärthel
Author-X-Name-First: Fredrik
Author-X-Name-Last: Bärthel
Author-Name: Johan Woxenius
Author-X-Name-First: Johan
Author-X-Name-Last: Woxenius
Title: Developing intermodal transport for small flows over short distances
Abstract:
Intermodal road-rail freight transport works best within markets
with relatively large flows occurring over long distances, which
corresponds poorly to the current demand for transport in the European
Union. The purpose of this paper is to compare the capabilities of
conventional European intermodal transport, with special reference to the
competitiveness in markets with small flows over short distances, and to
explore innovative concepts. Using a technological systems approach, key
functions are identified as being the inducement and blocking mechanisms
that affect the development and diffusion path of this 'small flows over
short distances' (SFSD) system, providing a tool for empirical delineation
of the system. These concepts are illustrated and analysed through a case
study of the Swedish development project Light-combi. The results show
that market and financial uncertainties, insufficient network connectivity
and policies favouring the existing technology paradigm, severely hamper
the development and diffusion of SFSD systems.
Journal: Transportation Planning and Technology
Pages: 403-424
Issue: 5
Volume: 27
Year: 2004
Month: 10
X-DOI: 10.1080/0308106042000287586
File-URL: http://hdl.handle.net/10.1080/0308106042000287586
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:5:p:403-424
Template-Type: ReDIF-Article 1.0
Author-Name: Robert B. Noland *
Author-X-Name-First: Robert B.
Author-X-Name-Last: Noland *
Author-Name: Washington Y. Ochieng
Author-X-Name-First: Washington Y.
Author-X-Name-Last: Ochieng
Author-Name: Mohammed A. Quddus
Author-X-Name-First: Mohammed A.
Author-X-Name-Last: Quddus
Author-Name: Robin J. North
Author-X-Name-First: Robin J.
Author-X-Name-Last: North
Author-Name: John W. Polak
Author-X-Name-First: John W.
Author-X-Name-Last: Polak
Title: The vehicle emissions and performance monitoring system: analysis of tailpipe emissions and vehicle performance
Abstract:
This paper describes tailpipe emission results generated by the Vehicle
Performance and Emissions Monitoring system (VPEMS). VPEMS integrates
on-board emissions and vehicle/driver performance measurements with
positioning and communications technologies, to transmit a coherent
spatio-temporally referenced dataset to a central base station in
near real time. These results focus on relationships between tailpipe
emissions of CO, CO2, NOx and speed and
acceleration. Emissions produced by different driving modes are also
presented. Results are generally as one would expect, showing variation
between vehicle speed, vehicle acceleration and emissions. Data is based
upon a test run in central London on urban streets with speeds not
exceeding about 65 km/h. The results presented demonstrate the
capabilities of the system. Various issues remain with regard to
validation of the data and expansion of the system capability to obtain
additional vehicle performance data.
Journal: Transportation Planning and Technology
Pages: 431-447
Issue: 6
Volume: 27
Year: 2004
Month: 9
X-DOI: 10.1080/0308106042000293480
File-URL: http://hdl.handle.net/10.1080/0308106042000293480
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:6:p:431-447
Template-Type: ReDIF-Article 1.0
Author-Name: H. Murat Celik
Author-X-Name-First: H. Murat
Author-X-Name-Last: Celik
Title: Forecasting interregional commodity flows using artificial neural networks: an evaluation
Abstract:
Previous studies have concluded that the use of artificial neural
networks (ANNs) is a promising new technique for modelling freight
distribution, supporting the findings of other studies in the area of
spatial interaction modelling. However, the forecasting performance of
ANNs is still under investigation. This study tests the predictive
performance of the ANN Model with respect to a Box--Cox spatial
interaction model. It is concluded that the Box--Cox model outperforms ANN
in forecasting interregional commodity flows even if ANN had proven
calibration superiority in comparison to conventional gravity type models.
Journal: Transportation Planning and Technology
Pages: 449-467
Issue: 6
Volume: 27
Year: 2004
Month: 9
X-DOI: 10.1080/0308106042000293499
File-URL: http://hdl.handle.net/10.1080/0308106042000293499
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:6:p:449-467
Template-Type: ReDIF-Article 1.0
Author-Name: Hedayat Z. Aashtiani
Author-X-Name-First: Hedayat Z.
Author-X-Name-Last: Aashtiani
Author-Name: Hossain Poorzahedy *
Author-X-Name-First: Hossain
Author-X-Name-Last: Poorzahedy *
Title: Braess' phenomenon in the management of networks and dissociation of equilibrium concepts
Abstract:
Braess' phenomenon, also known as Braess' paradox, is a phenomenon that
has received considerable attention in transportation engineering and
planning, as well as in other fields. It has an important implication in
the area of investment in transportation networks, namely that adding a
new link in a network may increase the cost to the users of that network.
In this paper we show this phenomenon in a new environment. Unlike
traditional examples, which involve the physical addition of a link to a
network (a 0/1 integer decision variable), an example is presented where
the decision variable is continuous in nature. Moreover, this example
conveys two new messages. First, it is shown that some logical criterion
of assigning common resources among users of a network proportional to the
number of users competing for common resources may not serve the purpose
of efficiency in the sense of minimizing total user travel cost (time).
Second, it is demonstrated that the very interdependence of variables and
decisions may lead to multi-equilibrium solutions to the
equilibrium flow problem, some of which may not satisfy the once taken for
granted characteristic that if the flow pattern satisfies equilibrium
conditions, then no user may be better off by unilaterally changing paths.
Journal: Transportation Planning and Technology
Pages: 469-482
Issue: 6
Volume: 27
Year: 2004
Month: 9
X-DOI: 10.1080/0308106042000316367
File-URL: http://hdl.handle.net/10.1080/0308106042000316367
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:6:p:469-482
Template-Type: ReDIF-Article 1.0
Author-Name: Suzana Kahn Ribeiro
Author-X-Name-First: Suzana Kahn
Author-X-Name-Last: Ribeiro
Author-Name: Márcio De Almeida D'agosto *
Author-X-Name-First: Márcio De Almeida
Author-X-Name-Last: D'agosto *
Title: Assessment of hybrid-drive bus fuel savings for Brazilian urban transit
Abstract:
Buses are the main transit mode in Brazil, transporting more than 55
million passengers per day. Most of these vehicles run on diesel oil
causing a dependence on oil, extensive greenhouse gas emissions and
increasing air pollution in urban areas. In order to improve this
situation, options for Brazilian cities include the use of alternative
fuels and new propulsion technologies, such as hybrid vehicles. This paper
proposes a procedure for evaluating the performance of a recently
developed hybrid-drive technology. A simple procedure is presented
to compare hybrid-drive buses with conventional diesel buses in
urban operations, particularly with respect to fuel economy. Next the
potential for reducing diesel oil consumption through the use of
hybrid-drive buses is assessed. Field tests carried out by the
authors indicate that fuel consumption improvement through the use of
hybrid-drive buses would certainly exceed 20%, resulting in lower
fuel costs and carbon dioxide (CO2) emissions.
Journal: Transportation Planning and Technology
Pages: 483-509
Issue: 6
Volume: 27
Year: 2004
Month: 9
X-DOI: 10.1080/0308106042000316376
File-URL: http://hdl.handle.net/10.1080/0308106042000316376
File-Format: text/html
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Handle: RePEc:taf:transp:v:27:y:2004:i:6:p:483-509
Template-Type: ReDIF-Article 1.0
Author-Name: Milan Janic
Author-X-Name-First: Milan
Author-X-Name-Last: Janic
Title: Modelling airport congestion charges
Abstract:
This article deals with modelling congestion charges at an airport. In
this context, congestion charging represents internalizing the cost of
marginal delays that a flight imposes on other flights due to congestion.
The modelling includes estimating congestion and flight delays, the cost
of these delays and the efficiency of particular flights following the
introduction of a congestion charge. The models are applied to an airport
-- New York LaGuardia -- to illustrate their ability to handle more
realistic congestion scenarios as well as the nature of the congestion to
be charged, the effectiveness of the congestion charge and a sensitivity
analysis based on changes in the nature of congestion as well as
characteristics of demand in terms of flight-aircraft type and airport
capacity.
Journal: Transportation Planning and Technology
Pages: 1-26
Issue: 1
Volume: 28
Year: 2004
Month: 11
X-DOI: 10.1080/0308106052000340369
File-URL: http://hdl.handle.net/10.1080/0308106052000340369
File-Format: text/html
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Handle: RePEc:taf:transp:v:28:y:2004:i:1:p:1-26
Template-Type: ReDIF-Article 1.0
Author-Name: Erhan Kozan
Author-X-Name-First: Erhan
Author-X-Name-Last: Kozan
Author-Name: Robert Burdett
Author-X-Name-First: Robert
Author-X-Name-Last: Burdett
Title: A railway capacity determination model and rail access charging methodologies
Abstract:
This article discusses approaches to the determination of railway
capacity and the significance of the following factors on capacity: mix of
trains, length and weight of trains, direction of train travel,
acceleration and deceleration, stopping protocols of trains, location and
length of crossing loops, location of signals, length of sections, dwell
times and sectional running times. A more accurate method to calculate
railway capacity is developed using previously unaddressed aspects for
capacity determination. Capacity and pricing are two key issues for
organizations involved with open track access regimes. A train access
charging methodology is therefore developed and incorporated into a
railway capacity determination model.
Journal: Transportation Planning and Technology
Pages: 27-45
Issue: 1
Volume: 28
Year: 2004
Month: 11
X-DOI: 10.1080/0308106052000340378
File-URL: http://hdl.handle.net/10.1080/0308106052000340378
File-Format: text/html
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Handle: RePEc:taf:transp:v:28:y:2004:i:1:p:27-45
Template-Type: ReDIF-Article 1.0
Author-Name: Dušan Teodorović
Author-X-Name-First: Dušan
Author-X-Name-Last: Teodorović
Author-Name: Panta Lučić
Author-X-Name-First: Panta
Author-X-Name-Last: Lučić
Title: Schedule synchronization in public transit using the fuzzy ant system
Abstract:
Trips between nodes in public transit networks may be made with or
without making transfers. Transfers usually represent an inconvenience to
passengers. Since poorly coordinated transfers can increase waiting times
significantly, it is especially important (when constructing timetables)
to synchronize schedules carefully in cases of larger headways. Poorly
coordinated transfers can also reduce the number of passengers using
public transit as a result of switching to competitor modes. When
designing synchronized schedules it is necessary to try to minimize the
total waiting times of all passengers at transfer nodes in a transit
network. Often only approximate numbers of transfer passengers are known.
This paper develops a model for schedule synchronization where the number
of transfer passengers is only approximately known. The model is based on
the Fuzzy Ant System that represents a combination of the Ant Colony
System and Fuzzy Logic.
Journal: Transportation Planning and Technology
Pages: 47-76
Issue: 1
Volume: 28
Year: 2004
Month: 11
X-DOI: 10.1080/0308106052000340387
File-URL: http://hdl.handle.net/10.1080/0308106052000340387
File-Format: text/html
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Handle: RePEc:taf:transp:v:28:y:2004:i:1:p:47-76
Template-Type: ReDIF-Article 1.0
Author-Name: Frank Witlox
Author-X-Name-First: Frank
Author-X-Name-Last: Witlox
Author-Name: Els Vandaele
Author-X-Name-First: Els
Author-X-Name-Last: Vandaele
Title: Determining the Monetary Value of Quality Attributes in Freight Transportation Using a Stated Preference Approach
Abstract:
It is commonly accepted that the modal choice of a shipper is influenced
not only by the pure economic attributes of transportation -- time and
cost -- but also by more qualitative factors. These quality attributes
relate to frequency, reliability, flexibility, transport duration and risk
of loss or damage; they are usually difficult to quantify in monetary
terms. Different techniques exist that help to understand better how these
different quality attributes of freight transportation influence modal
choice. In this paper we apply a stated preference design. Using real
business data, the aim is then to derive partial utility functions that
allow us to calculate monetary values for these different quality
attributes.
Journal: Transportation Planning and Technology
Pages: 77-92
Issue: 2
Volume: 28
Year: 2005
Month: 4
X-DOI: 10.1080/03081060500053301
File-URL: http://hdl.handle.net/10.1080/03081060500053301
File-Format: text/html
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Handle: RePEc:taf:transp:v:28:y:2005:i:2:p:77-92
Template-Type: ReDIF-Article 1.0
Author-Name: Antony Stathopoulos
Author-X-Name-First: Antony
Author-X-Name-Last: Stathopoulos
Author-Name: Theodore Tsekeris
Author-X-Name-First: Theodore
Author-X-Name-Last: Tsekeris
Title: Methodology for Validating Dynamic Origin--Destination Matrix Estimation Models with Implications for Advanced Traveler Information Systems
Abstract:
This paper describes a methodology for validating online dynamic O--D
matrix estimation models using loop detector data in large-scale
transportation networks. The simulation procedure focuses on travel
aspects related to the collective trip structure of users, including the
amount and duration of trips between O--D pairs, trip departure rates,
average travel time from each origin and combinations of them. The
analysis identifies emerging systematic patterns between these factors and
issues related to the model performance, including network scale effects.
This procedure aims to enhance the usage of prior O--D information based
on, e.g. travel surveys, that are typically used in the estimation
process. Moreover, it seeks to integrate the validation of dynamic O--D
matrix estimation models with strategies for identifying target population
groups for online planning and assessment of real-time travel information
services within the context of Advanced Traveler Information Systems
(ATIS).
Journal: Transportation Planning and Technology
Pages: 93-112
Issue: 2
Volume: 28
Year: 2005
Month: 4
X-DOI: 10.1080/03081060500053368
File-URL: http://hdl.handle.net/10.1080/03081060500053368
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Handle: RePEc:taf:transp:v:28:y:2005:i:2:p:93-112
Template-Type: ReDIF-Article 1.0
Author-Name: Kali Prasad Nepal
Author-X-Name-First: Kali Prasad
Author-X-Name-Last: Nepal
Author-Name: Dongjoo Park
Author-X-Name-First: Dongjoo
Author-X-Name-Last: Park
Title: Solving the Median Shortest Path Problem in the Planning and Design of Urban Transportation Networks Using a Vector Labeling Algorithm
Abstract:
This paper proposes an alternative algorithm to solve the median shortest
path problem (MSPP) in the planning and design of urban transportation
networks. The proposed vector labeling algorithm is based on the labeling
of each node in terms of a multiple and conflicting vector of objectives
which deletes cyclic, infeasible and extreme-dominated paths in the
criteria space imposing cyclic break (CB), path cost constraint (PCC) and
access cost parameter (ACP) respectively. The output of the algorithm is a
set of Pareto optimal paths (POP) with an objective vector from
predetermined origin to destination nodes. Thus, this paper formulates an
algorithm to identify a non-inferior solution set of POP based on a
non-dominated set of objective vectors that leaves the ultimate decision
to decision-makers. A numerical experiment is conducted using an
artificial transportation network in order to validate and compare
results. Sensitivity analysis has shown that the proposed algorithm is
more efficient and advantageous over existing solutions in terms of
computing execution time and memory space used.
Journal: Transportation Planning and Technology
Pages: 113-133
Issue: 2
Volume: 28
Year: 2005
Month: 4
X-DOI: 10.1080/03081060500053509
File-URL: http://hdl.handle.net/10.1080/03081060500053509
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Handle: RePEc:taf:transp:v:28:y:2005:i:2:p:113-133
Template-Type: ReDIF-Article 1.0
Author-Name: Justin Siegel
Author-X-Name-First: Justin
Author-X-Name-Last: Siegel
Author-Name: Juan Enrique Coeymans
Author-X-Name-First: Juan Enrique
Author-X-Name-Last: Coeymans
Title: An Integrated Framework for Traffic Analysis Combining Macroscopic and Microscopic Models
Abstract:
In this paper we describe the use of specific methodologies and
programming tools that allow the integration of macro- and microscopic
models for the analysis of urban transportation systems. Considering, on
the one hand, the advantages of using a macroscopic model for the
representation of large-scale networks, and, on the other, the high level
of detail that can be achieved by a microscopic model, we discuss
different examples and applications where it is practical to integrate
their use. One such case is the analysis of sub-areas that are part of a
large macroscopic network, in order to represent detailed design changes
as well as traffic management schemes that cannot be treated explicitly by
the macroscopic model. We propose in these cases that the demand
information considered in the macro model be transferred to the micro
model, and also that advantage be taken of micro modeling to fine-tune or
improve the representation of certain macro level phenomena (e.g. through
the definition of link capacities). The applications make use of the
ESTRAUS macroscopic model and the GETRAM/AIMSUN microscopic traffic
simulator.
Journal: Transportation Planning and Technology
Pages: 135-148
Issue: 2
Volume: 28
Year: 2005
Month: 4
X-DOI: 10.1080/03081060500053533
File-URL: http://hdl.handle.net/10.1080/03081060500053533
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Handle: RePEc:taf:transp:v:28:y:2005:i:2:p:135-148
Template-Type: ReDIF-Article 1.0
Author-Name: Michael J. Clay
Author-X-Name-First: Michael J.
Author-X-Name-Last: Clay
Author-Name: Robert A. Johnston
Author-X-Name-First: Robert A.
Author-X-Name-Last: Johnston
Title: Univariate Uncertainty Analysis of an Integrated Land Use and Transportation Model: MEPLAN
Abstract:
Land use and transportation models are typically given precise inputs and
return precise outputs. This precision should not be mistaken for
accuracy. The purpose of this paper is to introduce uncertainty into three
inputs and one parameter of a fully integrated land use and travel demand
model -- MEPLAN -- to determine the effect of uncertain inputs on model
outputs. Inputs were selected based upon there being expected sources of
uncertainty. Inputs were varied individually based upon plausible amounts
of error and the marginal impact of each on outputs was examined. Counter
to the findings of previous similar studies, uncertainty in the
socio-economic forecasts did not dominate the final amounts of error
observed in the model outputs. The propagation of error across model
years, as well as the final level of error in the end-year, is examined.
Journal: Transportation Planning and Technology
Pages: 149-165
Issue: 3
Volume: 28
Year: 2005
Month: 3
X-DOI: 10.1080/03081060500120233
File-URL: http://hdl.handle.net/10.1080/03081060500120233
File-Format: text/html
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Handle: RePEc:taf:transp:v:28:y:2005:i:3:p:149-165
Template-Type: ReDIF-Article 1.0
Author-Name: Meng Lu
Author-X-Name-First: Meng
Author-X-Name-Last: Lu
Author-Name: Kees Wevers
Author-X-Name-First: Kees
Author-X-Name-Last: Wevers
Author-Name: Rob Van Der Heijden
Author-X-Name-First: Rob
Author-X-Name-Last: Van Der Heijden
Title: Technical Feasibility of Advanced Driver Assistance Systems (ADAS) for Road Traffic Safety
Abstract:
This paper explores the technical feasibility of five Advanced Driver
Assistance System (ADAS) functions to contribute to road traffic safety,
to reach stated European (EU) and national road traffic safety targets.
These functions -- enhanced navigation, speed assistance, collision
avoidance, intersection support and lane keeping -- were selected from
previous research as adequate substitutes for infrastructure related
measures. State-of-the-art enabling technologies (like positioning, radar,
laser, vision and communication) and their potential are analysed from a
technical perspective, and possible obstacles for large-scale dedicated
ADAS implementation for road traffic safety are discussed.
Journal: Transportation Planning and Technology
Pages: 167-187
Issue: 3
Volume: 28
Year: 2005
Month: 3
X-DOI: 10.1080/03081060500120282
File-URL: http://hdl.handle.net/10.1080/03081060500120282
File-Format: text/html
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Handle: RePEc:taf:transp:v:28:y:2005:i:3:p:167-187
Template-Type: ReDIF-Article 1.0
Author-Name: Shangyao Yan
Author-X-Name-First: Shangyao
Author-X-Name-Last: Yan
Author-Name: Chin-Hui Tang
Author-X-Name-First: Chin-Hui
Author-X-Name-Last: Tang
Author-Name: Chong-Lan Shieh
Author-X-Name-First: Chong-Lan
Author-X-Name-Last: Shieh
Title: A Simulation Framework for Evaluating Airline Temporary Schedule Adjustments Following Incidents
Abstract:
Many factors affect the performance of temporary schedule adjustments
following incidents. These factors include static recovery scheduling,
stochastic flight delays and ‘real-time’ schedule
adjustments. Most research on recovery scheduling has focused on improving
static recovery scheduling models. None has analyzed these factors from a
systems perspective. The research on which this paper is based proposes a
framework, embodying a simulation process, that is not only be able to
analyze the influence of stochastic flight delays on static recovery
scheduling, but can also help to design more effective flexible buffer
times and ‘real-time’ schedule adjustment rules. To test the
framework we perform a simulation using data from a Taiwan domestic
airline. The preliminary results show that the framework could be usefully
applied by airlines in practice.
Journal: Transportation Planning and Technology
Pages: 189-211
Issue: 3
Volume: 28
Year: 2005
Month: 3
X-DOI: 10.1080/03081060500120324
File-URL: http://hdl.handle.net/10.1080/03081060500120324
File-Format: text/html
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Handle: RePEc:taf:transp:v:28:y:2005:i:3:p:189-211
Template-Type: ReDIF-Article 1.0
Author-Name: Ming Zhong
Author-X-Name-First: Ming
Author-X-Name-Last: Zhong
Author-Name: Satish Sharma
Author-X-Name-First: Satish
Author-X-Name-Last: Sharma
Author-Name: Pawan Lingras
Author-X-Name-First: Pawan
Author-X-Name-Last: Lingras
Title: Refining Genetically Designed Models for Improved Traffic Prediction on Rural Roads
Abstract:
Research into advanced traveler information systems (ATIS) for rural
roads is limited. However, highway agencies expect to implement
intelligent transportation systems (ITS) in both urban and rural areas. In
this paper, genetic algorithms (GAs) are used to design both time delay
neural network (TDNN) models as well as locally weighted regression (LWR)
models to predict short-term traffic for two rural roads in Alberta,
Canada. A top-down refinement was used to study the interactions between
modeling techniques and underlying data sets for obtaining highly accurate
models. It is found that LWR models achieve faster accuracy improvement
than TDNN models over the refinement process. Compared with previous
research, the models proposed here show higher accuracy. The average
errors for the best LWR models obtained through the model-refining process
are less than 2% in most cases. For refined TDNN models, the average
errors are usually less than 6--7%. The resulting models indicate a level
of high robustness over different types of roads, and thus may be
considered desirable for real-world statewide ITS implementations.
Journal: Transportation Planning and Technology
Pages: 213-236
Issue: 3
Volume: 28
Year: 2005
Month: 4
X-DOI: 10.1080/03081060500120340
File-URL: http://hdl.handle.net/10.1080/03081060500120340
File-Format: text/html
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Handle: RePEc:taf:transp:v:28:y:2005:i:3:p:213-236
Template-Type: ReDIF-Article 1.0
Author-Name: John C. Sutton
Author-X-Name-First: John C.
Author-X-Name-Last: Sutton
Title: GIS Applications in Transit Planning and Operations: A Review of Current Practice, Effective Applications and Challenges in the USA
Abstract:
ABSTRACT Over the years, Geographic Information Systems
(GIS) technology has been implemented for a variety of purposes within the
transit industry. With this have come many new uses, benefits and
challenges. The purpose of this article is to provide a review of current
practice, effective applications and challenges from a US perspective. The
findings are based on a Transit Cooperative Research Program (TCRP)
Synthesis project that researched the state-of-the-practice of GIS
applications in transit in the USA. Completed in 2004, the Synthesis
project is the most comprehensive survey and review of transit GIS ever
undertaken in the USA. Drawing from a number of sources and methods
including a literature review, surveys and case studies, the Synthesis
analyzed the trends in GIS use from the early 1990s to the present day,
and identifies trends and future growth areas. This paper summarizes the
Synthesis findings and illustrates the value of GIS to transit agencies in
service provision and in customer benefits. The article describes three
levels of use of GIS within transit agencies and the range of applications
that GIS is supporting. Its findings apply to transit practitioners and
researchers including technical staff, transit managers and vendors of GIS
solutions.
Journal: Transportation Planning and Technology
Pages: 237-250
Issue: 4
Volume: 28
Year: 2005
Month: 7
X-DOI: 10.1080/03081060500247655
File-URL: http://hdl.handle.net/10.1080/03081060500247655
File-Format: text/html
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Handle: RePEc:taf:transp:v:28:y:2005:i:4:p:237-250
Template-Type: ReDIF-Article 1.0
Author-Name: Ed Nash
Author-X-Name-First: Ed
Author-X-Name-Last: Nash
Author-Name: Andy Cope
Author-X-Name-First: Andy
Author-X-Name-Last: Cope
Author-Name: Phil James
Author-X-Name-First: Phil
Author-X-Name-Last: James
Author-Name: David Parker
Author-X-Name-First: David
Author-X-Name-Last: Parker
Title: Cycle Network Planning: Towards a Holistic Approach Using Temporal Topology
Abstract:
ABSTRACT Current cycle-network planning (CNP) at the local
level tends to be dominated by a subjective-pragmatic approach in which it
is only possible to consider a limited number of route alignment
possibilities and development-sequencing scenarios. Although this method
may produce acceptable results, it may also be true that the final design
could be improved -- and the construction efficiency could be enhanced --
by a more comprehensive review of the available options in relation to the
objectives of the intervention. Such objectives may include accident
reduction, modal shift in favour of cycling, health benefits or strategic
expansion of a network. This article presents work undertaken to
demonstrate a holistic approach to CNP, based on a logically defined
spatio-temporal model and allowing some semi-automated multiobjective
optimization of network designs in a GIS-based decision-support system.
The model is introduced briefly before a case study applying this model to
development of a cycle network in a small town in northeast England is
described. The results obtained from this case study and the implications
of this research for cycle network planners are discussed.
Journal: Transportation Planning and Technology
Pages: 251-271
Issue: 4
Volume: 28
Year: 2005
Month: 7
X-DOI: 10.1080/03081060500247739
File-URL: http://hdl.handle.net/10.1080/03081060500247739
File-Format: text/html
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Handle: RePEc:taf:transp:v:28:y:2005:i:4:p:251-271
Template-Type: ReDIF-Article 1.0
Author-Name: Rodrigo Fernandez
Author-X-Name-First: Rodrigo
Author-X-Name-Last: Fernandez
Author-Name: Nick Tyler
Author-X-Name-First: Nick
Author-X-Name-Last: Tyler
Title: Effect of Passenger--Bus--Traffic Interactions on Bus Stop Operations
Abstract:
ABSTRACT Buses are the unrecognized champions of public
transport in modern cities around the world. However, the bus system is
usually bedevilled by poor design that has resulted from poor
understanding of how a bus system actually works. This article examines
the impacts of the interactions between buses, passengers and traffic on
delays and capacity at bus stops. First, issues like the stages of bus
stop operations, causes of delays, and the interaction between bus
frequency and stop delays are analysed. This suggests the necessity of
microscopic simulation to study stops operations. An illustration of the
sort of understanding that can be achieved by means of simulation
experiments regarding arrival patterns of buses and passengers, boarding
times, difficulties for leaving the stop and vehicle capacity is shown.
Results indicate that it is important not to underestimate the real
situation found at bus stops, as designing for ideal conditions will be
insufficient if the reality is different. Application of these results
shows that dramatic improvements can be made to the performance of the bus
system as a result of a better understanding of its operation leading to
simple changes in the design of infrastructure.
Journal: Transportation Planning and Technology
Pages: 273-292
Issue: 4
Volume: 28
Year: 2005
Month: 7
X-DOI: 10.1080/03081060500247747
File-URL: http://hdl.handle.net/10.1080/03081060500247747
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Handle: RePEc:taf:transp:v:28:y:2005:i:4:p:273-292
Template-Type: ReDIF-Article 1.0
Author-Name: D'Artis Kancs
Author-X-Name-First: D'Artis
Author-X-Name-Last: Kancs
Title: Efficiency of European Funds in the Accession Countries: The Case of Transport Infrastructure Investments in Latvia
Abstract:
ABSTRACT A transport initiative, like any kind of public
action, has an impact on the monetary cost, time cost, efficiency and
comfort of the transportation of goods and people, in particular transport
infrastructure investments. All such initiatives are subject to cost
benefit analyses at the national and EU level to know whether the present
value of total net benefits including environmental impacts exceeds their
cost. However, several important policy issues remain unresolved in
standard evaluation procedures. One issue is whether the so-called direct
measurement of user benefit, which consists of quantifying changes in
surplus of the users of the transport system, captures all welfare
generated in the economy. Another issue is how the gains (or possibly
losses) of a transport initiative are distributed among regions. The aim
of this article is to perform a systematic and quantitative analysis of
the socio-economic and spatial impacts of alternative transport
investments by carrying out scenario simulations in order to improve the
understanding of the impact of transportation policies on the short- and
long-term spatial development in Latvia. The general result from the
scenario simulations is that rail projects seem to be more effective in
terms of promoting regional economic activity than road projects.
Journal: Transportation Planning and Technology
Pages: 293-313
Issue: 4
Volume: 28
Year: 2005
Month: 7
X-DOI: 10.1080/03081060500247754
File-URL: http://hdl.handle.net/10.1080/03081060500247754
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Handle: RePEc:taf:transp:v:28:y:2005:i:4:p:293-313
Template-Type: ReDIF-Article 1.0
Author-Name: Chin Long Mak
Author-X-Name-First: Chin
Author-X-Name-Last: Long Mak
Author-Name: Henry S.L. Fan
Author-X-Name-First: Henry S.L.
Author-X-Name-Last: Fan
Title: Evaluation of the Transferability of Incident Detection Algorithms Developed for Singapore Expressways
Abstract:
ABSTRACT Two new detection algorithms, single-station DV
(dual-variable) and dual-station CODE (COmbined Detector Evaluation) were
developed earlier using 160 incidents collected along Singapore's Central
Expressway (CTE). The transferability of these CTE-developed algorithms is
assessed, as a case study, using 100 incidents collected from the
Tullamarine Freeway and South Eastern Freeway in Melbourne, Australia. The
investigation covers the differences in traffic detector systems (loop
detectors versus video-based), road geometry and behaviour between drivers
in Singapore and Australia. The re-calibrated application of these
algorithms to freeways in Melbourne yielded a reasonably good detection
performance as well as satisfying the average expected performances of
seven traffic management centres surveyed in the USA. The results
suggested that the detection logic of the algorithms developed for CTE
possessed reasonably good transferability and are also suitable for
receiving traffic inputs from video-based detectors as well as from loop
detectors.
Journal: Transportation Planning and Technology
Pages: 315-339
Issue: 5
Volume: 28
Year: 2005
Month: 8
X-DOI: 10.1080/03081060500319686
File-URL: http://hdl.handle.net/10.1080/03081060500319686
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Handle: RePEc:taf:transp:v:28:y:2005:i:5:p:315-339
Template-Type: ReDIF-Article 1.0
Author-Name: Djoen San Santoso
Author-X-Name-First: Djoen
Author-X-Name-Last: San Santoso
Author-Name: Koji Tsunokawa
Author-X-Name-First: Koji
Author-X-Name-Last: Tsunokawa
Title: Spatial Transferability and Updating Analysis of Mode Choice Models in Developing Countries
Abstract:
ABSTRACT This article examines the spatial transferability
of mode choice models in developing countries. An evaluation of the
updating procedure and sample size are also included in the study. Because
of the insufficiency of model coefficients in explaining differences in
unmeasured modal attributes, naïvely transferring a model is not
recommended. An understanding of the transport characteristics in both the
estimation context and the application context is required, in order to
justify whether a variable is transferable or not. Four updating
procedures -- updating alternative specific constants (ASCs), updating
ASCs and scale parameter, the combined transfer estimator and Bayesian
updating associated with three sets of small sample sizes -- are applied
to improve transferability. In general, the first three approaches produce
significant improvements. It is also proposed that a minimum small sample
size of 400 observations is necessary for updating purposes.
Journal: Transportation Planning and Technology
Pages: 341-358
Issue: 5
Volume: 28
Year: 2005
Month: 7
X-DOI: 10.1080/03081060500319694
File-URL: http://hdl.handle.net/10.1080/03081060500319694
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Handle: RePEc:taf:transp:v:28:y:2005:i:5:p:341-358
Template-Type: ReDIF-Article 1.0
Author-Name: Steven I-JY Chien
Author-X-Name-First: Steven
Author-X-Name-Last: I-JY Chien
Title: Optimization Of Headway, Vehicle Size and Route Choice for Minimum Cost Feeder Service
Abstract:
ABSTRACT Many people use public transportation systems to
reach their destination, while others use personal vehicles. Poor
transportation systems do not attract ridership. Therefore, the usage of
passenger cars increases, and traffic and environmental conditions
deteriorate. Efficient public transportation has been recognized as one of
the potential ways of mitigating air pollution, reducing energy
consumption, improving mobility and alleviating traffic congestion. The
objective of this study is to optimize a bus feeder service that provides
the shuttle service between a recreation center (e.g. Sandy Hook, NJ) and
a major public transportation facility, subject to site-specific
constraints such as vehicle schedules, bus availability, service capacity
and budget. The decision variables include bus headway, vehicle size and
route choice. The solution methodology integrating both analytical and
numerical techniques is developed, which optimizes the decision variables.
Finally, the proposed solution methodology is applied to a case study.
Numerical results, including optimal solutions and sensitivity analyses,
are presented while the level of coordination between the feeder service
and a major transportation service is discussed.
Journal: Transportation Planning and Technology
Pages: 359-380
Issue: 5
Volume: 28
Year: 2005
Month: 8
X-DOI: 10.1080/03081060500322565
File-URL: http://hdl.handle.net/10.1080/03081060500322565
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Handle: RePEc:taf:transp:v:28:y:2005:i:5:p:359-380
Template-Type: ReDIF-Article 1.0
Author-Name: Eui-Hwan Chung
Author-X-Name-First: Eui-Hwan
Author-X-Name-Last: Chung
Author-Name: Amer Shalaby
Author-X-Name-First: Amer
Author-X-Name-Last: Shalaby
Title: A Trip Reconstruction Tool for GPS-based Personal Travel Surveys
Abstract:
ABSTRACT This article reports on the development of a trip
reconstruction software tool for use in GPS-based personal travel surveys.
Specifically, the tool enables the automatic processing of GPS traces of
individual survey respondents in order to identify the road links traveled
and modes used by each respondent for individual trips. Identifying the
links is based on a conventional GIS-based map-matching algorithm and
identifying the modes is a rule-based algorithm using attributes of four
modes (walk, bicycle, bus and passenger-car). The tool was evaluated using
GPS travel data collected for the study and a multi-modal transportation
network model of downtown Toronto. The results show that the tool
correctly detected about 79% of all links traveled and 92% of all trip
modes.
Journal: Transportation Planning and Technology
Pages: 381-401
Issue: 5
Volume: 28
Year: 2005
Month: 8
X-DOI: 10.1080/03081060500322599
File-URL: http://hdl.handle.net/10.1080/03081060500322599
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Handle: RePEc:taf:transp:v:28:y:2005:i:5:p:381-401
Template-Type: ReDIF-Article 1.0
Author-Name: Soner Haldenbilen
Author-X-Name-First: Soner
Author-X-Name-Last: Haldenbilen
Author-Name: Halim Ceylan
Author-X-Name-First: Halim
Author-X-Name-Last: Ceylan
Title: Transport Demand Management in Turkey: A Genetic Algorithm Approach
Abstract:
Abstract This article proposes new models for
estimating transport demand using a genetic algorithm (GA) approach. Based
on population, gross national product and number of vehicles, four forms
of the genetic algorithm transport planning (GATP) model are developed --
one exponential and the others taking quadratic forms -- and applied to
Turkey. The best fit models in terms of minimum total average relative
errors in the test period are selected for future estimation. Demand
management strategies are proposed based on three scenarios: restricting
private car use, restricting truck use and the simultaneous management of
private car use and goods movement. Results show that the GATP model may
be used to estimate transport demand in terms of passenger-kilometers
traveled (pass-km), vehicle-kilometers traveled (veh-km) and
ton-kilometers completed (ton-km). Results also show that the third
scenario -- simultaneous restrictions on private car use and goods
movement -- could reduce total veh-km by about 35% by 2025 in this study
of Turkish rural roads.
Journal: Transportation Planning and Technology
Pages: 403-426
Issue: 6
Volume: 28
Year: 2005
Month: 8
X-DOI: 10.1080/03081060500515507
File-URL: http://hdl.handle.net/10.1080/03081060500515507
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Handle: RePEc:taf:transp:v:28:y:2005:i:6:p:403-426
Template-Type: ReDIF-Article 1.0
Author-Name: Carlo Theunissen
Author-X-Name-First: Carlo
Author-X-Name-Last: Theunissen
Author-Name: Gerrit K. Janssens
Author-X-Name-First: Gerrit K.
Author-X-Name-Last: Janssens
Title: A ‘Less-flexibility-first’ Heuristic for the Placement of Inland Vessels in a Lock
Abstract:
Abstract Inland vessels move goods along
waterways (canals and rivers) and they visit ports. Because of their tidal
nature, vessels make use of locks to enter ports or waterways. From a port
management point of view, fast access to and from the port and high
utilization of locks are important objectives. Where the former relates to
low inbound and outbound waiting times, the latter relates to the
placement of as many vessels as possible in the lock before its operation.
This article includes a case study that relates to the operation of the
Van Cauwelaert lock in the port of Antwerp, Belgium. Lock operation policy
is as follows: vessels wait in front of the lock for a port administrator
to assign places in the lock based on knowledge of the vessels’
dimensions. As such, there is no FIFO-discipline, but a
‘group-FIFO’-discipline, i.e. if n vessels
are allowed into the lock, they are the first n vessels
in the arrival queue. A heuristic algorithm is formulated for the
placement of vessels in the lock. This algorithm supports the decision
where to place the vessel in the lock, aiming to place as many vessels as
possible from the arrival queue. At the same time, it supports the
decision to start a locking operation or not, based on information about
vessels that are announced but which have not yet arrived at the lock's
entrance. The heuristic is called a
‘less-flexibility-first’-heuristic as it looks for
pseudo-placements, showing which flexibility is left for the remaining
vessels after placing a vessel. This article describes the implementation
of the heuristic and provides numerical examples. A comparison is made
between the heuristic results and daily practice, based on real-life
vessel movements through the Van Cauwelaert lock in 2002.
Journal: Transportation Planning and Technology
Pages: 427-446
Issue: 6
Volume: 28
Year: 2005
Month: 10
X-DOI: 10.1080/03081060500515556
File-URL: http://hdl.handle.net/10.1080/03081060500515556
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Handle: RePEc:taf:transp:v:28:y:2005:i:6:p:427-446
Template-Type: ReDIF-Article 1.0
Author-Name: Janez Usenik
Author-X-Name-First: Janez
Author-X-Name-Last: Usenik
Author-Name: Marija Bogataj
Author-X-Name-First: Marija
Author-X-Name-Last: Bogataj
Title: A Fuzzy Set Approach for a Location-Inventory Model
Abstract:
Abstract In the supply chain, production and
logistics facilities are positioned between the customer and supply
markets. As a consequence, any changes in these markets should cause the
enterprise to re-evaluate its location and the capacity of its activities
at that particular location in the logistics network, which also means
re-evaluating the parameters of input-output matrices for the entire
supply chain. Different analytical approaches have been developed to
describe the influence of production on the hierarchical spatial pattern.
Our article presents a fuzzy set approach to the model of spatial
hierarchy as a result of spatial interactions. We attempt to present the
difference between net present value estimated by a fuzzy approach on the
one hand and report on an analytical approach to the problem on the other.
Journal: Transportation Planning and Technology
Pages: 447-464
Issue: 6
Volume: 28
Year: 2005
Month: 7
X-DOI: 10.1080/03081060500515572
File-URL: http://hdl.handle.net/10.1080/03081060500515572
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Handle: RePEc:taf:transp:v:28:y:2005:i:6:p:447-464
Template-Type: ReDIF-Article 1.0
Author-Name: James E. Moore, Ii
Author-X-Name-First: James E.
Author-X-Name-Last: Moore, Ii
Author-Name: Stephen P. Mattingly
Author-X-Name-First: Stephen P.
Author-X-Name-Last: Mattingly
Author-Name: C. Arthur MacCarley
Author-X-Name-First: C. Arthur
Author-X-Name-Last: MacCarley
Author-Name: Michael G. McNally
Author-X-Name-First: Michael G.
Author-X-Name-Last: McNally
Title: Anaheim Advanced Traffic Control System Field Operations Test: A Technical Evaluation of SCOOT
Abstract:
Abstract This article provides a technical
evaluation of the traffic control element of the Anaheim Advanced Traffic
Control System Field Operations Test (FOT), sponsored by the US Department
of Transportation. The primary objective for this test was the evaluation
of adaptive traffic signal control technologies, including the Split Cycle
and Offset Optimization Technique (SCOOT) for intersection signal control.
The SCOOT evaluation was defined relative to existing, first generation
Urban Traffic Control System (UTCS)-based control using standard US field
detectorization. This US geometry is not the detector configuration
normally used with SCOOT. SCOOT was implemented with some degree of
success, though technical problems limited its performance. Anaheim's
existing communication and controller systems contributed major deployment
limitations since they were less adequate than anticipated. SCOOT remains
in use in selected areas, with plans for system expansion.
Journal: Transportation Planning and Technology
Pages: 465-482
Issue: 6
Volume: 28
Year: 2005
Month: 11
X-DOI: 10.1080/03081060500515622
File-URL: http://hdl.handle.net/10.1080/03081060500515622
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Handle: RePEc:taf:transp:v:28:y:2005:i:6:p:465-482
Template-Type: ReDIF-Article 1.0
Author-Name: Surabhi Gupta
Author-X-Name-First: Surabhi
Author-X-Name-Last: Gupta
Author-Name: Sukumar Kalmanje
Author-X-Name-First: Sukumar
Author-X-Name-Last: Kalmanje
Author-Name: Kara M. Kockelman
Author-X-Name-First: Kara M.
Author-X-Name-Last: Kockelman
Title: Road Pricing Simulations: Traffic, Land Use and Welfare Impacts for Austin, Texas
Abstract:
Abstract This article explores the traffic, land
use and welfare impacts of road pricing in the Austin (Texas, USA) region,
including the introduction of planned toll roads, bridge tolls, and a
downtown cordon toll. Different tolling strategies are examined, including
fixed versus variable toll rates. The travel demand model (TDM)
incorporates joint mode and time-of-day choice models, as well as
multinomial model of destination choice, relying on a full feedback of
travel times and costs. Austin-calibrated DRAM-EMPAL models are used to
predict future household and job distributions. Results include traffic
redistribution over space and time, long-term location choice changes, and
traveler welfare implications. While the proposed toll roads to generate
revenues and enhance traveler options, their estimated project costs are
not estimated to exceeds such benefits. In addition, the bridge tolls are
expected to successfully redistribute traffic, while the downtown area
appears highly sensitive to cordon tolls.
Journal: Transportation Planning and Technology
Pages: 1-23
Issue: 1
Volume: 29
Year: 2005
Month: 12
X-DOI: 10.1080/03081060600584130
File-URL: http://hdl.handle.net/10.1080/03081060600584130
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Handle: RePEc:taf:transp:v:29:y:2005:i:1:p:1-23
Template-Type: ReDIF-Article 1.0
Author-Name: J. Macías-Guarasa
Author-X-Name-First: J.
Author-X-Name-Last: Macías-Guarasa
Author-Name: R. San-Segundo
Author-X-Name-First: R.
Author-X-Name-Last: San-Segundo
Author-Name: J.M. Montero
Author-X-Name-First: J.M.
Author-X-Name-Last: Montero
Author-Name: J. Ferreiros
Author-X-Name-First: J.
Author-X-Name-Last: Ferreiros
Author-Name: R. Córdoba
Author-X-Name-First: R.
Author-X-Name-Last: Córdoba
Author-Name: F. Fernández
Author-X-Name-First: F.
Author-X-Name-Last: Fernández
Author-Name: L.F. D'Haro
Author-X-Name-First: L.F.
Author-X-Name-Last: D'Haro
Author-Name: J.M. Pardo
Author-X-Name-First: J.M.
Author-X-Name-Last: Pardo
Title: Adapting a Search Algorithm for the Spanish Railway Network
Abstract:
Abstract This article describes a search
algorithm adapted to the Spanish Railway Network for generating as many
traveling options as possible between two railway stations. This algorithm
(Warshall's algorithm) uses connecting matrices to find all possible
railway journeys. The Spanish Railway Company has imposed severe
restrictions: less than 1 second per query in a 600Mhz processor PC with
32Mb RAM and 150Mb hard disk free memory. The final average time for a
simple query is around 0.25 seconds and the whole memory consumption is
127Mb. The final implementation has been divided into 3 modules. In the
first module, we store additional information in the connecting matrices
to accelerate the later search, proposing several strategies for reducing
thier size. The journey option calculation module accesses the matrix
information and composes the traveling options. Finally, in the filtering
module we describe the selection criteria considering the algorithm
embedded in a general information service.
Journal: Transportation Planning and Technology
Pages: 25-42
Issue: 1
Volume: 29
Year: 2005
Month: 12
X-DOI: 10.1080/03081060600585145
File-URL: http://hdl.handle.net/10.1080/03081060600585145
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Handle: RePEc:taf:transp:v:29:y:2005:i:1:p:25-42
Template-Type: ReDIF-Article 1.0
Author-Name: Qisheng Pan
Author-X-Name-First: Qisheng
Author-X-Name-Last: Pan
Title: Freight Data Assembling and Modeling: Methodologies and Practice
Abstract:
Abstract In comparison to personal travel,
freight movements within large metropolitan areas are much less studied.
Most conventional transportation models and planning analysis that
disregarded freight flows have been criticized on the plausibility of
their results and conclusions. To alleviate these problems, this study
proposes a non-survey based approach to assemble and process freight data
in a systematic way. A freight origin--destination (OD) matrix of freight
flows can be developed using secondary data sources. The estimated freight
flows can be loaded together with conventional passenger flows onto the
regional highway network of a large metropolitan area. As a case study,
this non-survey based approach was applied to build a freight OD and study
the traffic flows in Los Angeles. It concluded that this approach can be
used to analyze urban freight movement in a low-cost way in which planning
agencies can overcome the common omission of freight flow information in
their transportation plans.
Journal: Transportation Planning and Technology
Pages: 43-74
Issue: 1
Volume: 29
Year: 2005
Month: 12
X-DOI: 10.1080/03081060600585327
File-URL: http://hdl.handle.net/10.1080/03081060600585327
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Handle: RePEc:taf:transp:v:29:y:2005:i:1:p:43-74
Template-Type: ReDIF-Article 1.0
Author-Name: Tom Rye
Author-X-Name-First: Tom
Author-X-Name-Last: Rye
Author-Name: Tom Cowan
Author-X-Name-First: Tom
Author-X-Name-Last: Cowan
Author-Name: Stephen Ison
Author-X-Name-First: Stephen
Author-X-Name-Last: Ison
Title: Expansion of a Controlled Parking Zone (CPZ) and its Influence on Modal Split: The Case of Edinburgh
Abstract:
Abstract This article considers the
inter-relationship between on-street parking and choice of mode for
journeys to work in the Scottish city of Edinburgh. This city is typical
of many in that its centre has significant on-street parking controls but,
beyond a radius of 1 to 1 1/2 miles (1.5 to 2.5 km) from the
centre, there are no controls and commuter parking on-street is
commonplace. The article reviews the relevant literature, and then
considers the results of a survey undertaken of Edinburgh city centre
employees in order to ascertain their parking habits and likely response
to the extension of existing on-street parking controls. The article
concludes that the results are transferable to other cities but that the
scale of the impacts in each will be related to site specific factors,
particularly the demand for residential parking space on-street in areas
close to the city centre.
Journal: Transportation Planning and Technology
Pages: 75-89
Issue: 1
Volume: 29
Year: 2005
Month: 8
X-DOI: 10.1080/03081060600585368
File-URL: http://hdl.handle.net/10.1080/03081060600585368
File-Format: text/html
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Handle: RePEc:taf:transp:v:29:y:2005:i:1:p:75-89
Template-Type: ReDIF-Article 1.0
Author-Name: Mei-Shiang Chang
Author-X-Name-First: Mei-Shiang
Author-X-Name-Last: Chang
Author-Name: Che-Fu Hsueh
Author-X-Name-First: Che-Fu
Author-X-Name-Last: Hsueh
Title: A Dynamic Road Pricing Model for Freeway Electronic Toll Collection Systems under Build-Operate-Transfer Arrangements
Abstract:
In this article, a discrete non-linear mathematical
programming model with a variational inequality constraint is proposed to
determine road tolls and time-varying congestion tolls for a freeway
electronic toll collection system under a build-operate-transfer
arrangement. An interdependent relationship between the profits of private
investors and the temporal and spatial distributions of traffic demand is
integrated into the proposed dynamic road-pricing model. Assuring the
maximization of social welfare as a working assumption, an optimal toll
scheme is determined by maximizing private investors' profits. A modified
Nelder-Mead simplex algorithm integrated with the nested diagonalization
method is elaborated to solve this dynamic road pricing problem. Numerical
results are given to demonstrate its validity.
Journal: Transportation Planning and Technology
Pages: 91-104
Issue: 2
Volume: 29
Year: 2006
Month: 4
X-DOI: 10.1080/03081060600753321
File-URL: http://hdl.handle.net/10.1080/03081060600753321
File-Format: text/html
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Handle: RePEc:taf:transp:v:29:y:2006:i:2:p:91-104
Template-Type: ReDIF-Article 1.0
Author-Name: Bo Huang
Author-X-Name-First: Bo
Author-X-Name-Last: Huang
Author-Name: Li Yao
Author-X-Name-First: Li
Author-X-Name-Last: Yao
Author-Name: K. Raguraman
Author-X-Name-First: K.
Author-X-Name-Last: Raguraman
Title: Bi-level GA and GIS for Multi-objective TSP Route Planning
Abstract:
Route planning is usually carried out to achieve a single
objective such as to minimize transport cost, distance traveled or travel
time. This article explores an approach to multi-objective route planning
using a genetic algorithm (GA) and geographical information system (GIS)
approach. The method is applied to the case of a tourist sight-seeing
itinerary, where a route is planned by a tour operator to cover a set of
places of interest within a given area. The route planning takes into
account four criteria including travel time, vehicle operating cost,
safety and surrounding scenic view quality. The multi-objective route
planning in this paper can be viewed as an extension of the traditional
traveling salesman problem (TSP) since a tourist needs to pass through a
number of sight points. The four criteria are quantified using the spatial
analytic functions of GIS and a generalized cost for each link is
calculated. As different criteria play different roles in the route
selection process, and the best order of the multiple points needs to be
determined, a bi-level GA has been devised. The upper level aims to
determine the weights of each criterion, while the lower level attempts to
determine the best order of the sights to be visited based on the new
generalized cost that is derived from the weights at the upper level. Both
levels collaborate during the iterations and the route with the minimal
generalized cost is thus determined. The above sight-seeing route planning
methodology has been examined in a region within the central area of
Singapore covering 19 places of interest.
Journal: Transportation Planning and Technology
Pages: 105-124
Issue: 2
Volume: 29
Year: 2006
Month: 4
X-DOI: 10.1080/03081060600753404
File-URL: http://hdl.handle.net/10.1080/03081060600753404
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Handle: RePEc:taf:transp:v:29:y:2006:i:2:p:105-124
Template-Type: ReDIF-Article 1.0
Author-Name: Satu Innamaa
Author-X-Name-First: Satu
Author-X-Name-Last: Innamaa
Title: Effect of Monitoring System Structure on Short-term Prediction of Highway Travel Time
Abstract:
This article discusses how the structure of the measurement
system affects the short-term forecasts of travel time based on it. The
effects of section length and location of different measurement stations
were investigated. The study used empirical data. The research was carried
out on a 28-km long interurban two-lane highway section. The prediction
models were made as feedforward multilayer perceptron neural networks. The
main results showed that the division of long road sections into shorter
sub-links in the travel time measurement system was important.
Furthermore, it would be crucial to obtain information about traffic flow
rates entering the section in order to time the start of congestion
correctly. In conclusion, the structure of the monitoring system should be
based on the analysis of a typical location and the development of
congestion along the section.
Journal: Transportation Planning and Technology
Pages: 125-140
Issue: 2
Volume: 29
Year: 2006
Month: 4
X-DOI: 10.1080/03081060600753438
File-URL: http://hdl.handle.net/10.1080/03081060600753438
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Handle: RePEc:taf:transp:v:29:y:2006:i:2:p:125-140
Template-Type: ReDIF-Article 1.0
Author-Name: Ming Zhong
Author-X-Name-First: Ming
Author-X-Name-Last: Zhong
Author-Name: Satish Sharma
Author-X-Name-First: Satish
Author-X-Name-Last: Sharma
Author-Name: Pawan Lingras
Author-X-Name-First: Pawan
Author-X-Name-Last: Lingras
Title: Matching Patterns for Updating Missing Values of Traffic Counts
Abstract:
The presence of missing values is an
important issue for traffic data programs. Previous studies indicate that
a large percentage of permanent traffic counts (PTCs) from highway
agencies have missing hourly volumes. These missing values make data
analysis and usage difficult. A literature review of imputation practice
and previous research reveals that simple factor and time series analysis
models have been applied to estimate missing values for transport related
data. However, no detailed statistical results are available for assessing
imputation accuracy. In this study, typical traditional imputation models
identified from practice and previous research are evaluated statistically
based on data from an automatic traffic recorder (ATR) in Alberta, Canada.
A new method based on a pattern matching technique is then proposed for
estimating missing values. Study results show that the proposed models
have superior levels of performance over traditional imputation models.
Journal: Transportation Planning and Technology
Pages: 141-156
Issue: 2
Volume: 29
Year: 2006
Month: 4
X-DOI: 10.1080/03081060600753461
File-URL: http://hdl.handle.net/10.1080/03081060600753461
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:2:p:141-156
Template-Type: ReDIF-Article 1.0
Author-Name: Chi Wai Tsang
Author-X-Name-First: Chi
Author-X-Name-Last: Wai Tsang
Author-Name: Tin Kin Ho
Author-X-Name-First: Tin
Author-X-Name-Last: Kin Ho
Title: Conflict Resolution through Negotiation in a Railway Open Access Market: a Multi-agent System Approach
Abstract:
Abstract Open access reforms to railway
regulations allow multiple train operators to provide rail services on a
common infrastructure. As railway operations are now independently managed
by different stakeholders, conflicts in operations may arise, and there
have been attempts to derive an effective access charge regime so that
these conflicts may be resolved. One approach is by direct negotiation
between the infrastructure manager and the train service providers.
Despite the substantial literature on the topic, few consider the benefits
of employing computer simulation as an evaluation tool for railway
operational activities such as access pricing. This article proposes a
multi-agent system (MAS) framework for the railway open market and
demonstrates its feasibility by modelling the negotiation between an
infrastructure provider and a train service operator. Empirical results
show that the model is capable of resolving operational conflicts
according to market demand.
Journal: Transportation Planning and Technology
Pages: 157-182
Issue: 3
Volume: 29
Year: 2006
Month: 1
X-DOI: 10.1080/03081060600810899
File-URL: http://hdl.handle.net/10.1080/03081060600810899
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:3:p:157-182
Template-Type: ReDIF-Article 1.0
Author-Name: Hugo Pietrantonio
Author-X-Name-First: Hugo
Author-X-Name-Last: Pietrantonio
Author-Name: Luiz Fernando Bizerril Tourinho
Author-X-Name-First: Luiz
Author-X-Name-Last: Fernando Bizerril Tourinho
Title: A Decision-based Criterion for Selecting Parameters in the Evaluation of Pedestrian Safety Problems with the Traffic Conflict Analysis Technique
Abstract:
Abstract This article discusses and applies
methods for developing diagnostic parameters for pedestrian traffic safety
problems using the traffic conflict analysis technique (TCT) to a study of
pedestrian crossings at urban signalized intersections in São Paulo,
Brazil. The development of parameters has two tasks: the selection of an
adequate classification of conflicts and/or segmentation of crossings, and
the determination of parameters for the classes (including recommended
confidence levels). Based on the US Federal Highway Administration guides
for the study of vehicular conflicts, the pedestrian conflict count limits
(abnormally high level of counts for problem detection) and the ratio of
accidents per million conflicts (risk index and accident forecasting rate)
are developed for the types of urban crossings observed in the signalized
intersections of the study. Statistical methods are applied with a new
decision-based criterion that could select the best
classification/segmentation and the recommended confidence level to be
used in applied work. Results obtained from the application of such
methods to the case study are presented and discussed as an example
application.
Journal: Transportation Planning and Technology
Pages: 183-216
Issue: 3
Volume: 29
Year: 2006
Month: 1
X-DOI: 10.1080/03081060600810923
File-URL: http://hdl.handle.net/10.1080/03081060600810923
File-Format: text/html
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Handle: RePEc:taf:transp:v:29:y:2006:i:3:p:183-216
Template-Type: ReDIF-Article 1.0
Author-Name: Kofi Obeng
Author-X-Name-First: Kofi
Author-X-Name-Last: Obeng
Author-Name: Mark Burkey
Author-X-Name-First: Mark
Author-X-Name-Last: Burkey
Title: Explaining Property Damage from Crashes at Signalized Intersections
Abstract:
Abstract In this article, we estimate a Tobit
model of property damage costs of crashes that occur at signalized
intersections with data from one US city -- Greensboro, North Carolina.
The model includes data on technological variables, types of crash, types
of vehicle, traffic and intersection characteristics, and driver condition
at the time of crash. The results indicate that driver condition and type
of vehicle contribute more to higher property damage costs than any other
variable. Those variables that have negative effects on these costs are
being a female driver, traffic volume, commercial and institutional land
uses. From the results, we conclude that traffic countermeasures such as
reducing the amber signal phase time and posting lower speed limits on
urban roads could reduce property damage costs.
Journal: Transportation Planning and Technology
Pages: 217-231
Issue: 3
Volume: 29
Year: 2006
Month: 1
X-DOI: 10.1080/03081060600810972
File-URL: http://hdl.handle.net/10.1080/03081060600810972
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:3:p:217-231
Template-Type: ReDIF-Article 1.0
Author-Name: Kemal Selçuk Öğüt
Author-X-Name-First: Kemal
Author-X-Name-Last: Selçuk Öğüt
Title: Modeling Car Ownership in Turkey Using Fuzzy Regression
Abstract:
Abstract This article develops a model which can
be used to determine car ownership in Turkey. Because of the lack of
disaggregated data, the model is based on aggregated data. As owning a car
is mainly affected by economic, social and demographic factors, the car
ownership model has a multi-variable form. In order to explain the effects
of these factors on car ownership in Turkey, a fuzzy multiple-regression
model is used. The major reason for applying fuzzy regression is to
overcome the intercorrelation problem associated with the independent
variables. In this study, the urbanization rate, average family size,
gross national product per capita, average car cost, gasoline price and
total length of roads are selected as independent variables. The results
show that, by applying a multi-variable approach to possibilistic
regression, the model provides not only a crisp output but also an output
range for car ownership in Turkey between 1970 and 2000.
Journal: Transportation Planning and Technology
Pages: 233-248
Issue: 3
Volume: 29
Year: 2006
Month: 3
X-DOI: 10.1080/03081060600811004
File-URL: http://hdl.handle.net/10.1080/03081060600811004
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:3:p:233-248
Template-Type: ReDIF-Article 1.0
Author-Name: Caspar G. Chorus
Author-X-Name-First: Caspar G.
Author-X-Name-Last: Chorus
Author-Name: Eric J. E. Molin
Author-X-Name-First: Eric J. E.
Author-X-Name-Last: Molin
Author-Name: Bert Van Wee
Author-X-Name-First: Bert
Author-X-Name-Last: Van Wee
Author-Name: Theo A. Arentze
Author-X-Name-First: Theo A.
Author-X-Name-Last: Arentze
Author-Name: Harry J. P. Timmermans
Author-X-Name-First: Harry J. P.
Author-X-Name-Last: Timmermans
Title: Responses to Transit Information among Car-drivers: Regret-based Models and Simulations
Abstract:
Abstract This article investigates the use and
effects of transit information among car drivers that consider transit as
a mode-option in their choice set. It does so by first presenting a
theoretical model of travel information use and effect, based on the
integration of notions of Bayesian updating into a regret-based framework
of travel choice. Subsequently, numerical simulation of the model provides
insights into the mechanisms behind information use and effect in a
mode-choice context where a traveler has both car-- as well as
transit-options in their choice set, and prefers traveling by car over
riding by transit. These simulations show that the perceived value of
acquiring transit information is limited by a number of factors.
Furthermore they demonstrate that, even in the case where transit
information is acquired, and the message is favorable to transit, its
impact on mode choices will also be limited. Given these results for
non-habitual car-drivers, it is suggested that for car-drivers in general
(thus including the large share of habitual drivers), conservative
estimates regarding the impact of transit information provision on modal
shift would be realistic.
Journal: Transportation Planning and Technology
Pages: 249-271
Issue: 4
Volume: 29
Year: 2006
Month: 3
X-DOI: 10.1080/03081060600905434
File-URL: http://hdl.handle.net/10.1080/03081060600905434
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:4:p:249-271
Template-Type: ReDIF-Article 1.0
Author-Name: Patrick Vu
Author-X-Name-First: Patrick
Author-X-Name-Last: Vu
Author-Name: Venky N. Shankar
Author-X-Name-First: Venky N.
Author-X-Name-Last: Shankar
Author-Name: Gudmundur F. Ulfarsson
Author-X-Name-First: Gudmundur F.
Author-X-Name-Last: Ulfarsson
Title: Is Access Management Good for Business? Business Perceptions of the Effects of Traffic Access Management on Accessibility and Patronage
Abstract:
Abstract Access management is widely defined as
the planning, design and implementation of land-use and transportation
strategies that control the flow of traffic between roads and surrounding
land. Previous studies focus mainly on the positive benefits of access
management on safety and traffic flow. To ensure optimal transportation
design, the design process must be based on a sound understanding of the
issues perceived to be important by businesses, residences and other
users. This study explores how businesses perceive the economic impacts of
access management, along with safety and congestion impacts. About 280
businesses along six major commercial corridors in Western Washington
State were surveyed. The analytical framework was developed using the
simultaneous logit model, which allows the simultaneous modeling of
perceptions of different performance metrics, through an endogenous
relationship. The findings show that significant factors affecting
business perceptions include business type and operational variables,
corridor and street environment variables, as well as willingness-to-pay
(WTP) measures.
Journal: Transportation Planning and Technology
Pages: 273-293
Issue: 4
Volume: 29
Year: 2006
Month: 7
X-DOI: 10.1080/03081060600905509
File-URL: http://hdl.handle.net/10.1080/03081060600905509
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:4:p:273-293
Template-Type: ReDIF-Article 1.0
Author-Name: George Yannis
Author-X-Name-First: George
Author-X-Name-Last: Yannis
Author-Name: John Golias
Author-X-Name-First: John
Author-X-Name-Last: Golias
Author-Name: Constantinos Antoniou
Author-X-Name-First: Constantinos
Author-X-Name-Last: Antoniou
Title: Effects of Urban Delivery Restrictions on Traffic Movements
Abstract:
Abstract This article investigates the effects
of the adoption of restrictions in vehicle movements associated with urban
delivery operations on traffic. A wide range of data (including land use,
delivery requirements per type of service, traffic mix, traffic flows and
capacities) are used within suitable models to assess the traffic and
environmental effects in Athens, Greece. The findings suggest that
restricting delivery to specific types of businesses during rush hours can
lead to positive traffic and environmental effects. The effectiveness of
urban delivery restriction policies depends on the careful selection of
the time periods and types of businesses for which they will apply.
Journal: Transportation Planning and Technology
Pages: 295-311
Issue: 4
Volume: 29
Year: 2006
Month: 4
X-DOI: 10.1080/03081060600905566
File-URL: http://hdl.handle.net/10.1080/03081060600905566
File-Format: text/html
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Handle: RePEc:taf:transp:v:29:y:2006:i:4:p:295-311
Template-Type: ReDIF-Article 1.0
Author-Name: P.R. Fouracre
Author-X-Name-First: P.R.
Author-X-Name-Last: Fouracre
Author-Name: M. Sohail
Author-X-Name-First: M.
Author-X-Name-Last: Sohail
Author-Name: S. Cavill
Author-X-Name-First: S.
Author-X-Name-Last: Cavill
Title: A Participatory Approach to Urban Transport Planning in Developing Countries
Abstract:
Abstract Traditionally transport planning and
policy-making has used quantitative surveys to predict future demand for
public transport. However, this article argues that a more participatory
approach is required in order to better understand household activity
patterns and the effects and implications of travel on livelihoods. Such
an understanding will enable transport planning and policy to support the
needs of those on low income and achieve broader poverty alleviation
objectives. This article draws on case studies undertaken in Harare
(Zimbabwe), Accra (Ghana) and Colombo (Sri Lanka) as part of a broader
study carried out for the UK Department for International Development
(DfID) Knowledge and Research Programme. The article examines the effect
of public transport on certain dimensions of poverty, considers the links
between urban transport and other sectors (health, education and
employment) and summarizes key methods of enquiry that might be adopted in
effecting a more participatory approach to transport planning.
Journal: Transportation Planning and Technology
Pages: 313-330
Issue: 4
Volume: 29
Year: 2006
Month: 1
X-DOI: 10.1080/03081060600905665
File-URL: http://hdl.handle.net/10.1080/03081060600905665
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:4:p:313-330
Template-Type: ReDIF-Article 1.0
Author-Name: Nick Tyler
Author-X-Name-First: Nick
Author-X-Name-Last: Tyler
Title: Capabilities and Radicalism: Engineering Accessibility in the 21st century
Abstract:
Abstract Engineering bridges the gap between, on
the one hand, that mix of philosophy and politics that we call policy and,
on the other, the physical implementation of the means to put policy into
practice. Starting with a brief outline of the nature of accessibility,
why it is important and how in some cases a person might be disabled by a
lack of accessibility, this article -- based on the author's Inaugural
Lecture given at University College London in February 2005 -- turns to
consider how a person's needs challenge their capabilities (i.e. what they
can do) and considers a radical approach to understanding people's
capabilities in the implementation process. Next, the formation of policy
intentions in order to permit, encourage and implement the engineering of
appropriate solutions is discussed and conclusions drawn about how this
affects work in the transport domain. Perhaps we need to look at the world
in a different way before we can make it a better place.
Journal: Transportation Planning and Technology
Pages: 331-358
Issue: 5
Volume: 29
Year: 2006
Month: 1
X-DOI: 10.1080/03081060600917629
File-URL: http://hdl.handle.net/10.1080/03081060600917629
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:5:p:331-358
Template-Type: ReDIF-Article 1.0
Author-Name: Jin-Woo Park
Author-X-Name-First: Jin-Woo
Author-X-Name-Last: Park
Author-Name: Rodger Robertson
Author-X-Name-First: Rodger
Author-X-Name-Last: Robertson
Author-Name: Cheng-Lung Wu
Author-X-Name-First: Cheng-Lung
Author-X-Name-Last: Wu
Title: Modelling the Impact of Airline Service Quality and Marketing Variables on Passengers’ Future Behavioural Intentions
Abstract:
Abstract This article investigates how perceived
price, airline service quality, perceived value, passenger satisfaction
and airline image determine passengers’ future behavioural
intentions. To test the conceptual framework, structural equation
modelling using a maximum likelihood estimator was applied to data
collected from Australian international air passengers. It was found that
there were significant relationships between the variables except for
three paths. The three insignificant paths were the relationship between
‘perceived price and passenger satisfaction’,
‘service quality and airline image’ and ‘perceived
value and airline image’. Perceived price, perceived value,
passenger satisfaction, and airline image were each found to have a direct
effect on passengers’ future behavioural intentions.
Journal: Transportation Planning and Technology
Pages: 359-381
Issue: 5
Volume: 29
Year: 2006
Month: 7
X-DOI: 10.1080/03081060600917686
File-URL: http://hdl.handle.net/10.1080/03081060600917686
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:5:p:359-381
Template-Type: ReDIF-Article 1.0
Author-Name: Ming-Miin Yu
Author-X-Name-First: Ming-Miin
Author-X-Name-Last: Yu
Author-Name: Chih-Ku Fan
Author-X-Name-First: Chih-Ku
Author-X-Name-Last: Fan
Title: Measuring the Cost Effectiveness of Multimode Bus Transit in the Presence of Accident Risks
Abstract:
Abstract This study employs the directional
graph distance function and the multiactivity data envelopment analysis
(DEA) approach, which incorporates both desirable and undesirable outputs,
in order to provide a more complete representation of the multimode bus
production technology from which environmentally and risk-sensitive cost
effectiveness measures can be generated. We treat accident cost as the
risky output in the sense that we wish to increase desirable outputs and
decrease risky output and inputs. The approach is applied to the problem
of measuring the cost effectiveness of 24 bus companies in Taiwan. An
empirical illustration suggests that the overall cost effectiveness
rankings turn out to be very sensitive to whether or not the graph
multiactivity DEA approach is adopted. This implies that the conventional
DEA cost effectiveness measure may be seriously misleading if it ignores
the cost effectiveness of organizations that carry out various activities
whilst sharing common resources.
Journal: Transportation Planning and Technology
Pages: 383-407
Issue: 5
Volume: 29
Year: 2006
Month: 7
X-DOI: 10.1080/03081060600917728
File-URL: http://hdl.handle.net/10.1080/03081060600917728
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:5:p:383-407
Template-Type: ReDIF-Article 1.0
Author-Name: M. Kumar
Author-X-Name-First: M.
Author-X-Name-Last: Kumar
Author-Name: K. V. Krishna Rao
Author-X-Name-First: K. V.
Author-X-Name-Last: Krishna Rao
Title: A Stated Preference Study for a Car Ownership Model in the Context of Developing Countries
Abstract:
Abstract A stated preference (SP) experiment of
car ownership was conducted in Mumbai Metropolitan Region (MMR) of
Maharashtra in India. A full factorial experiment was designed to
considering various attributes such as travel time, travel cost, projected
household income, car loan payment and servicing cost. Data on 357
individuals were collected which resulted in 3213 observations for the
calibration of the work trip and recreational trip car ownership models.
The car ownership alternatives considered 0, 1 and 2 cars. A multinomial
logit framework was used to develop the car ownership model taking the
household as a decision unit. The specification and results of the SP car
ownership model are discussed. The observed and predicted values matched
reasonably when the validity of the SP car ownership model was tested
against revealed preference (RP) data. The car ownership models developed
in this study exhibit a satisfactory goodness of fit. It is concluded that
the SP modelling approach can be successfully used for modelling car
ownership decisions of households in developing countries.
Journal: Transportation Planning and Technology
Pages: 409-425
Issue: 5
Volume: 29
Year: 2006
Month: 7
X-DOI: 10.1080/03081060600917793
File-URL: http://hdl.handle.net/10.1080/03081060600917793
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:5:p:409-425
Template-Type: ReDIF-Article 1.0
Author-Name: Michael J. Clay
Author-X-Name-First: Michael J.
Author-X-Name-Last: Clay
Author-Name: Robert A. Johnston
Author-X-Name-First: Robert A.
Author-X-Name-Last: Johnston
Title: Large Real Estate Developments, Spatial Uncertainty and Integrated Land Use and Transportation Modeling
Abstract:
Abstract In the past 10 years, integrated land
use and transportation modeling has received considerable attention in the
scholarly literature. This academic interest is slowly yielding practical
applications. In the USA, many metropolitan planning organizations (MPOs)
and state departments of transportation are beginning to implement these
types of model for the first time. While many improvements have been made
to these models, and the value of these improvements should not be
understated, much work still remains. One of the most challenging problems
in land use modeling is how floorspace (buildings) is built and occupied.
The purpose of this article is twofold: first, to draw attention to
insufficiencies in the representation of floorspace developer
behavior-particularly as it applies to large, urban-edge projects --
within current integrated land use and transportation models and, second,
to determine the necessity of explicitly accounting for such projects
within these models. The Sacramento MEPLAN model will be used together
with historical development records to demonstrate and test these
assertions. Single large developments are modeled with a common year of
development, size, and location. Among the findings, large developments
are fairly common in the Sacramento region and make up a considerable
amount of floorspace development in absolute terms, large basic sector
developments have more of an impact and are therefore more important to
explicitly account for than are large non-basic sector developments. A
single large basic sector development modeled in a 20-year forecast has a
significant impact on zonal outputs. Recommendations are put forward
regarding the use of this research in practical modeling exercises.
Journal: Transportation Planning and Technology
Pages: 427-444
Issue: 6
Volume: 29
Year: 2006
Month: 10
X-DOI: 10.1080/03081060601075641
File-URL: http://hdl.handle.net/10.1080/03081060601075641
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:6:p:427-444
Template-Type: ReDIF-Article 1.0
Author-Name: Shangyao Yan
Author-X-Name-First: Shangyao
Author-X-Name-Last: Yan
Author-Name: Chih-Teng Lo
Author-X-Name-First: Chih-Teng
Author-X-Name-Last: Lo
Author-Name: Yu-Lin Shih
Author-X-Name-First: Yu-Lin
Author-X-Name-Last: Shih
Title: Cargo Container Loading Plan Model and Solution Method for International Air Express Carriers
Abstract:
Abstract In this article, a cargo container
loading plan model is developed based on the operations of FedEx, the
international air express carrier. The objective is to minimize total
container handling cost, subject to related operating constraints. The
model is expected to be a useful planning tool whereby international air
express carriers such as FedEx can decide on container loading plans that
will lead to lower operating costs, thus enhancing profits and market
competitiveness. The model is formulated as a non-linear mixed integer
program that is characterized as NP-hard. A solution method is then
developed, with the use of the mathematical programming solver, CPLEX, to
solve the problem efficiently. To evaluate the model and the solution
method, we perform a case study using data from FedEx. The preliminary
results indicate that the model and the solution method are both efficient
and effective.
Journal: Transportation Planning and Technology
Pages: 445-470
Issue: 6
Volume: 29
Year: 2006
Month: 9
X-DOI: 10.1080/03081060601075674
File-URL: http://hdl.handle.net/10.1080/03081060601075674
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:6:p:445-470
Template-Type: ReDIF-Article 1.0
Author-Name: Erhan Kozan
Author-X-Name-First: Erhan
Author-X-Name-Last: Kozan
Title: Optimum Capacity for Intermodal Container Terminals
Abstract:
Abstract Achievement of a desirable level of
customer service at intermodal terminals mainly depends on the efficient
loading and unloading of trains without delays. The efficiency of the
transfer between the modes in the terminal area can have a significant
effect on these delays. In this article, an analytically based simulation
model is developed to investigate delays of trains for different service
configurations. Simulation outputs are used to find an optimum balance of
the cost of train delays and variation from the desired level of service.
Data from the Acacia Ridge Terminal in Brisbane, Australia are used to
validate and test the model.
Journal: Transportation Planning and Technology
Pages: 471-482
Issue: 6
Volume: 29
Year: 2006
Month: 9
X-DOI: 10.1080/03081060601075716
File-URL: http://hdl.handle.net/10.1080/03081060601075716
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:6:p:471-482
Template-Type: ReDIF-Article 1.0
Author-Name: Angel Ibeas
Author-X-Name-First: Angel
Author-X-Name-Last: Ibeas
Author-Name: José Luis Moura
Author-X-Name-First: José
Author-X-Name-Last: Luis Moura
Author-Name: Luigi Dell'Olio
Author-X-Name-First: Luigi
Author-X-Name-Last: Dell'Olio
Author-Name: Juan de Dios Ortúzar
Author-X-Name-First: Juan
Author-X-Name-Last: de Dios Ortúzar
Title: Costing School Transport in Spain
Abstract:
Abstract School transport in Spain is conceived
administratively as a regular, but special, public transport service
financed by the Spanish regional governments through private sector
contracts adjudicated by public tendering. As such it has two special
features in comparison to systems elsewhere. First, larger operators use
conventional buses (rather than special school buses) and these can also
be used for regular services during school hours. Second, as these are
regional services, often only regional operators bid for these tenders, so
contract assignment resembles a bargaining process between operators and
administrations, tempering an adequate operation of the market. This
problem is common to all Spanish regions. The situation described has
generated high costs (i.e. 15% increase in contract costs in the past year
although the number of contracts did not vary significantly). For this
reason the Government of Cantabria commissioned research to examine the
problem. A simple cost allocation model allowed us to detect that school
transport costs were, on average, approximately 18% higher than what could
be deemed reasonable. This article describes the problem, the reasons why
it has occurred and explains the model built to examine it in certain
detail. It also shows the immediate consequences of its application (i.e.
the reaction of the main operators and their changed strategy) and the
steps taken by the Regional Government, based on our results, to ensure a
proper operation of the market in the future.
Journal: Transportation Planning and Technology
Pages: 483-501
Issue: 6
Volume: 29
Year: 2006
Month: 5
X-DOI: 10.1080/03081060601075757
File-URL: http://hdl.handle.net/10.1080/03081060601075757
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:29:y:2006:i:6:p:483-501
Template-Type: ReDIF-Article 1.0
Author-Name: Hugo Priemus
Author-X-Name-First: Hugo
Author-X-Name-Last: Priemus
Author-Name: Bert Van Wee
Author-X-Name-First: Bert Van
Author-X-Name-Last: Wee
Title: Public Planning of Large Rail Projects: Nightmare or Success Story?
Journal: Transportation Planning and Technology
Pages: 1-7
Issue: 1
Volume: 30
Year: 2006
Month: 2
X-DOI: 10.1080/03081060701207896
File-URL: http://hdl.handle.net/10.1080/03081060701207896
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Handle: RePEc:taf:transp:v:30:y:2006:i:1:p:1-7
Template-Type: ReDIF-Article 1.0
Author-Name: Bent Flyvbjerg
Author-X-Name-First: Bent
Author-X-Name-Last: Flyvbjerg
Title: Cost Overruns and Demand Shortfalls in Urban Rail and Other Infrastructure
Abstract:
Abstract Risk, including economic risk, is
increasingly a concern for public policy and management. The possibility
of dealing effectively with risk is hampered, however, by lack of a sound
empirical basis for risk assessment and management. This article
demonstrates the general point for cost and demand risks in urban rail
projects. The article presents empirical evidence that allow valid
economic risk assessment and management of urban rail projects, including
benchmarking of individual or groups of projects. Benchmarking of the
Copenhagen Metro is presented as a case in point. The approach developed
is proposed as a model for other types of policies and projects in order
to improve economic and financial risk assessment and management in policy
and planning.
Journal: Transportation Planning and Technology
Pages: 9-30
Issue: 1
Volume: 30
Year: 2006
Month: 2
X-DOI: 10.1080/03081060701207938
File-URL: http://hdl.handle.net/10.1080/03081060701207938
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Handle: RePEc:taf:transp:v:30:y:2006:i:1:p:9-30
Template-Type: ReDIF-Article 1.0
Author-Name: Bert Van Wee
Author-X-Name-First: Bert
Author-X-Name-Last: Van Wee
Title: Rail Infrastructure: Challenges for Cost--Benefit Analysis and Other ex ante Evaluations
Abstract:
Abstract Cost--benefit analysis (CBA) plays a
major role in the ex ante evaluation of rail projects in
many western countries. At first sight carrying out a CBA for rail
projects seems straightforward, since cost estimates are almost always
available, and the most dominant benefits are generally known, being the
travel time saved and the increase in consumer surplus due to induced
demand. However, the practice is much more complex: the quality of current
estimates for costs and benefits is often poor and several
benefits-related aspects are ignored. This article gives an overview of
the challenges in improving the quality of CBAs for rail projects.
Journal: Transportation Planning and Technology
Pages: 31-48
Issue: 1
Volume: 30
Year: 2006
Month: 2
X-DOI: 10.1080/03081060701207995
File-URL: http://hdl.handle.net/10.1080/03081060701207995
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Handle: RePEc:taf:transp:v:30:y:2006:i:1:p:31-48
Template-Type: ReDIF-Article 1.0
Author-Name: Hans De Bruijn
Author-X-Name-First: Hans
Author-X-Name-Last: De Bruijn
Author-Name: Martijn Leijten
Author-X-Name-First: Martijn
Author-X-Name-Last: Leijten
Title: Megaprojects and Contested Information
Abstract:
Abstract Good information is a key to good
decision-making on large infrastructure projects. Decision-making is
information-sensitive and empirical research shows that a lack of
information may result in poor decision-making. The solution seems clear:
more, better and timelier information. This recommendation is too simple
because much information is ‘contested’. This article deals
with three issues related to information and large infrastructure
projects. First, the concept of contested knowledge is introduced. The
stronger the different interests of the main actors, the stronger the
incentives will be to make information more contested and devalue it.
Second, if the contested character of information is denied, what are the
implications for decision-making? If information is contested and actors
look for objective information, the role of information will be devalued
rather than strengthened. Finally, what strategies can cope with the
contested character of information? The result of these strategies is
negotiated knowledge rather than objective knowledge.
Journal: Transportation Planning and Technology
Pages: 49-69
Issue: 1
Volume: 30
Year: 2006
Month: 2
X-DOI: 10.1080/03081060701208050
File-URL: http://hdl.handle.net/10.1080/03081060701208050
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Handle: RePEc:taf:transp:v:30:y:2006:i:1:p:49-69
Template-Type: ReDIF-Article 1.0
Author-Name: Hugo Priemus
Author-X-Name-First: Hugo
Author-X-Name-Last: Priemus
Title: Decision-making on Large Infrastructure Projects: The Role of the Dutch Parliament
Abstract:
Abstract The preparation and implementation of
large infrastructure projects present many practical problems. Recent
literature has devoted much attention to budget overruns and
overestimation of returns, partly in relation to the presence of
misinformation. In the Netherlands, the Parliamentary Commission on
Infrastructure Projects (TCI) conducted an inquiry into the manner in
which two large projects, the Betuwe Railway Line and the HSL Zuid
High-Speed Railway link, had been prepared. In its final report, many
shortcomings in the decision-making procedures were identified,
particularly when seen from the perspective of the Lower House of the
Dutch Parliament. The Commission has put forward an assessment framework
for large infrastructure projects, intended to allow the Lower House
greater influence over the decision-making processes and more control over
their implementation. In this contribution, we examine the Commission's
findings and identify a number of lessons with a normative character: How
can the preparation and implementation of large infrastructure projects be
improved? Finally, the relevance of the TCI proposals for countries other
than the Netherlands is briefly addressed.
Journal: Transportation Planning and Technology
Pages: 71-93
Issue: 1
Volume: 30
Year: 2006
Month: 2
X-DOI: 10.1080/03081060701208084
File-URL: http://hdl.handle.net/10.1080/03081060701208084
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Handle: RePEc:taf:transp:v:30:y:2006:i:1:p:71-93
Template-Type: ReDIF-Article 1.0
Author-Name: Moshe Givoni
Author-X-Name-First: Moshe
Author-X-Name-Last: Givoni
Author-Name: David Banister
Author-X-Name-First: David
Author-X-Name-Last: Banister
Title: Role of the Railways in the Future of Air Transport
Abstract:
Abstract The role of the railways in the air
transport industry is usually limited to provision of access to airports.
However, the development of high-speed rail networks and the congestion
and environmental problems faced by the air transport industry suggest the
railways could have a greater role in working with the airlines to provide
an integrated transport service for medium-distance journeys (up to 800
km). Many air journeys involve two flights and a transfer at a hub
airport. The alternative being investigated here would replace air
journeys by a rail journey and a flight, and a transfer between them at
the hub airport. Such integration could offer a positive alternative to
aircraft on some routes and lead to railway journeys to airports becoming
part of air transport services, and not only to provide access to them.
Integration could therefore provide a better use of available air capacity
rather than duplicating some high-speed rail routes and services.
Journal: Transportation Planning and Technology
Pages: 95-112
Issue: 1
Volume: 30
Year: 2006
Month: 2
X-DOI: 10.1080/03081060701208100
File-URL: http://hdl.handle.net/10.1080/03081060701208100
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Handle: RePEc:taf:transp:v:30:y:2006:i:1:p:95-112
Template-Type: ReDIF-Article 1.0
Author-Name: Jiafu Tang
Author-X-Name-First: Jiafu
Author-X-Name-Last: Tang
Author-Name: Kai-Leung Yung
Author-X-Name-First: Kai-Leung
Author-X-Name-Last: Yung
Author-Name: Andrew W. H. Ip
Author-X-Name-First: Andrew W. H.
Author-X-Name-Last: Ip
Author-Name: Shixin Liu
Author-X-Name-First: Shixin
Author-X-Name-Last: Liu
Title: Synchronized Production and Transportation Planning Using Subcontracted Vehicles in a Production-Distribution Network
Abstract:
Abstract Effective management of interfaces
between procurement, supply, production and distribution for higher
efficiency in the supply chain is an important issue in global
manufacturing, where the synchronization of production and transportation
planning represents important savings in operational costs. This paper
focuses on the synchronization of production planning and transportation
planning in a production distribution network, where transportation is
subcontracted to a professional transportation enterprise (PTE) for
vehicle-hiring. Dynamic and flexible numbers of vehicles are used to cater
for fast changing market demands. Thus, the number of vehicles to be hired
is viewed from the planning point of view as an operational decision
considered simultaneously with production and transportation planning. A
mathematical model -- SPTP/MTDS -- for synchronized production and
transportation planning under multiple times and direct shipping strategy
(MTDS) is discussed, and a Lagrange relaxation decomposition-based two
layer decision procedure (LRD-TLDP) is developed. By introducing
artificial decision variables and Lagrange multipliers, SPTP/MTDS is
decomposed into a production decision sub-problem (SPTP-PD), and a
distribution decision sub-problem (SPTP-DD). A priority-based assignment
heuristic and a partial chain-based genetic algorithm are developed to
solve SPTP-PD and SPTP-DD, respectively. An illustration of the
application of the model in an electronic appliance manufacturing
enterprise in China is presented.
Journal: Transportation Planning and Technology
Pages: 113-146
Issue: 2-3
Volume: 30
Year: 2006
Month: 12
X-DOI: 10.1080/03081060701390528
File-URL: http://hdl.handle.net/10.1080/03081060701390528
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Handle: RePEc:taf:transp:v:30:y:2006:i:2-3:p:113-146
Template-Type: ReDIF-Article 1.0
Author-Name: Shwu-Ping Guo
Author-X-Name-First: Shwu-Ping
Author-X-Name-Last: Guo
Title: Internalization of Transportation External Costs: Impact Analysis of Logistics Company Mode and Route Choices
Abstract:
Abstract This study focuses on the mode and
route choices of a logistics company in a situation involving intercity
transportation with networks of surface roads, highways and a railway. A
method of transportation network analysis is applied to construct a
logistics company mode and route choice models with the objective of
minimizing total distribution and external costs. This study also assumes
that the fleet number and vehicle capacities are given. Freight
distributed from a distribution center to given retailers or consumers via
surface road/highway links or via intermodal transportation involving
surface road/highway links and a railway. In terms of model construction,
this study first explores the routing and sequence of the retailers and
consumers served by each vehicle. Second, the study internalizes the
external cost of air pollution into the total distribution cost, to
analyze the influences of external cost burdens on a logistics company
mode and route choices from a user charge perspective. Finally, the study
designs a heuristic algorithm for solving the above models, and
illuminates the modeling process using a numerical example.
Journal: Transportation Planning and Technology
Pages: 147-165
Issue: 2-3
Volume: 30
Year: 2006
Month: 9
X-DOI: 10.1080/03081060701390569
File-URL: http://hdl.handle.net/10.1080/03081060701390569
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Handle: RePEc:taf:transp:v:30:y:2006:i:2-3:p:147-165
Template-Type: ReDIF-Article 1.0
Author-Name: Ping Ji
Author-X-Name-First: Ping
Author-X-Name-Last: Ji
Author-Name: Kejia Chen
Author-X-Name-First: Kejia
Author-X-Name-Last: Chen
Title: The Vehicle Routing Problem: The Case of the Hong Kong Postal Service
Abstract:
Abstract With the growth in population and
development of business activities in Hong Kong, the range and level of
services provided by Hongkong Post have multiplied. However, the schedule
of its postal vehicles, including mail collection and delivery, is still
constructed manually on a daily basis, based on the experience of staff
and transportation reviews. In this paper, the problem of scheduling a set
of n collection points (District Post Offices) from a
depot (General Post Office) in Hong Kong Island is addressed. The
objectives pursued are the maximization of resource utilization and
minimization of operation costs. In other words, the variable cost is
expected to be reduced. To achieve these goals, an integer linear
programming (IP) model of the vehicle routing problem (VRP) is developed
in an effort to obtain optimal solutions. As the model involves
computational complexity, a commercial software package
CPLEX is used to solve the problems efficiently. The
results show that the proposed model can produce optimal vehicle routes
and schedules.
Journal: Transportation Planning and Technology
Pages: 167-182
Issue: 2-3
Volume: 30
Year: 2006
Month: 8
X-DOI: 10.1080/03081060701390841
File-URL: http://hdl.handle.net/10.1080/03081060701390841
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Handle: RePEc:taf:transp:v:30:y:2006:i:2-3:p:167-182
Template-Type: ReDIF-Article 1.0
Author-Name: N. Holdsworth
Author-X-Name-First: N.
Author-X-Name-Last: Holdsworth
Author-Name: M. P. Enoch
Author-X-Name-First: M. P.
Author-X-Name-Last: Enoch
Author-Name: S. G. Ison
Author-X-Name-First: S. G.
Author-X-Name-Last: Ison
Title: Examining the Political and Practical Reality of Bus-based Real Time Passenger Information
Abstract:
Abstract Enhancing the bus experience through
improved information provision is a key element of UK Government transport
policy. Real time passenger information (RTPI) is perceived to reassure
waiting passengers, to benefit the bus operator through increased revenue
and the local authority, by promoting social inclusion and achieving a
modal shift. RTPI also provides an important tool for operators by
allowing them to monitor services and refine their schedules. The aim of
this paper is to understand the reasons for implementing RTPI in the bus
sector, and to determine the key issues impacting on the likely success of
such a policy. A case study approach investigates the experiences of two
provincial towns in the UK. The paper suggests that, whilst it is unclear
whether RTPI has resulted in an increase in bus patronage, it is
considered to be most effective when combined as part of a package of
measures. It is intended that the findings from the two case studies will
reveal lessons of relevance to authorities contemplating the introduction
of RTPI.
Journal: Transportation Planning and Technology
Pages: 183-204
Issue: 2-3
Volume: 30
Year: 2006
Month: 10
X-DOI: 10.1080/03081060701390874
File-URL: http://hdl.handle.net/10.1080/03081060701390874
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Handle: RePEc:taf:transp:v:30:y:2006:i:2-3:p:183-204
Template-Type: ReDIF-Article 1.0
Author-Name: Anders Wretstrand
Author-X-Name-First: Anders
Author-X-Name-Last: Wretstrand
Title: Comfort and Safety as Perceived by Wheelchair-Seated Bus Passengers
Abstract:
Abstract Wheelchair-seated passengers on
European and Swedish urban transit buses can travel rearwards, resting
against a bulkhead, without the use of tie-down equipment. However, users
sometimes disapprove of being the only passengers who have to travel
rearwards, and also unrestrained. In order to investigate comfort and
safety as perceived by wheelchair-seated bus passengers riding either
forwards or rearwards, an experimental field study was carried out.
Participating subjects were 31 wheelchair users and a group of 44 ambulant
passengers. Each subject made two consecutive, identical 15-minute trips,
randomly beginning either forwards or backwards, and interviews were
conducted after each trip. During the trips, three-axis bus motion was
recorded. The concept of categorization was used as a theoretical
background and basis for discussion of the comfort and safety constructs.
The results indicated that while the majority preferred the forward-facing
position regarding comfort issues, a minority felt that the level of
perceived safety was better. Wheelchair-seated passengers were more
positive towards the rearward position than the ambulant group.
Journal: Transportation Planning and Technology
Pages: 205-224
Issue: 2-3
Volume: 30
Year: 2006
Month: 8
X-DOI: 10.1080/03081060701390890
File-URL: http://hdl.handle.net/10.1080/03081060701390890
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Handle: RePEc:taf:transp:v:30:y:2006:i:2-3:p:205-224
Template-Type: ReDIF-Article 1.0
Author-Name: Chang Yi
Author-X-Name-First: Chang
Author-X-Name-Last: Yi
Author-Name: Benjamin K. Rasmussen
Author-X-Name-First: Benjamin K.
Author-X-Name-Last: Rasmussen
Author-Name: Daniel A. Rodriguez
Author-X-Name-First: Daniel A.
Author-X-Name-Last: Rodriguez
Title: Understanding the Relationship Between Physical and Virtual Representations of Transit Agencies
Abstract:
Abstract This study examines whether physical
attributes of transit agencies, such as agency size, make a difference in
how transit websites are designed, and how transit information is
distributed. The objective of this study is to see if there is a
relationship between physical and virtual representations of transit
agencies. A rating instrument is developed for evaluating the quality of
transit websites. Our findings suggest that transit agency size plays a
key role in determining website quality: When the size of transit system
is large, the information about the agency is too complex to be
effectively presented on web pages. Thus, the quality of the large
agencies’ websites is lower than medium-sized agencies. Instead, we
find that large agencies attempt to design more user-friendly sites, and
provide advanced information searching tools to compensate for low
information quality. Policy implications for transit agencies are
discussed.
Journal: Transportation Planning and Technology
Pages: 225-247
Issue: 2-3
Volume: 30
Year: 2006
Month: 12
X-DOI: 10.1080/03081060701395485
File-URL: http://hdl.handle.net/10.1080/03081060701395485
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Handle: RePEc:taf:transp:v:30:y:2006:i:2-3:p:225-247
Template-Type: ReDIF-Article 1.0
Author-Name: Luis Ferreira
Author-X-Name-First: Luis
Author-X-Name-Last: Ferreira
Author-Name: Phil Charles
Author-X-Name-First: Phil
Author-X-Name-Last: Charles
Author-Name: Clara Tether
Author-X-Name-First: Clara
Author-X-Name-Last: Tether
Title: Evaluating Flexible Transport Solutions
Abstract:
Abstract Flexible transport services (FTS) have
been of increasing interest in developing countries as a bridge between
the use of personal car travel and fixed route transit services. This
paper reports on findings from a recent study in Queensland Australia,
which identified lessons from an international review and implications for
Australia. Potential strategic directions, including a vision, mission,
key result areas, strategies, and identified means of measuring
performance are described. Evaluation criteria for assessing flexible
transport proposals were developed, and approaches to identifying and
assessing needs and demands outlined. The use of emerging technologies is
also a key element of successful flexible transport services.
Journal: Transportation Planning and Technology
Pages: 249-269
Issue: 2-3
Volume: 30
Year: 2006
Month: 12
X-DOI: 10.1080/03081060701395501
File-URL: http://hdl.handle.net/10.1080/03081060701395501
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Handle: RePEc:taf:transp:v:30:y:2006:i:2-3:p:249-269
Template-Type: ReDIF-Article 1.0
Author-Name: Satu Innamaa
Author-X-Name-First: Satu
Author-X-Name-Last: Innamaa
Title: Online Prediction of Travel Time: Experience From a Pilot Trial
Abstract:
Abstract This study was designed to present an
online model which predicted travel times on an interurban two-lane
two-way highway section on the basis of field measurements. The study
included two parts: an evaluation of the performance of the model, and an
examination of the possibility to improve the model in case of
unsatisfactory performance. The model was based on MLP neural networks.
The main results of the evaluation showed that the prediction model
outperformed a non-predictive system. However, the model for one section
had not performed as well during the trial period as was expected. This
might be due to a slight change in the congestion phenomenon. After
further development, the findings showed that the model could be improved
considerably with new data. The main implication was that even a simple
prediction model improves the quality of travel time information
substantially, compared to estimates based directly on the latest
measurements.
Journal: Transportation Planning and Technology
Pages: 271-287
Issue: 2-3
Volume: 30
Year: 2006
Month: 12
X-DOI: 10.1080/03081060701395535
File-URL: http://hdl.handle.net/10.1080/03081060701395535
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Handle: RePEc:taf:transp:v:30:y:2006:i:2-3:p:271-287
Template-Type: ReDIF-Article 1.0
Author-Name: Cathy MacHaris
Author-X-Name-First: Cathy
Author-X-Name-Last: MacHaris
Author-Name: Joeri Van Mierlo
Author-X-Name-First: Joeri
Author-X-Name-Last: Van Mierlo
Author-Name: Peter Van Den Bossche
Author-X-Name-First: Peter
Author-X-Name-Last: Van Den Bossche
Title: Combining Intermodal Transport With Electric Vehicles: Towards More Sustainable Solutions
Abstract:
Abstract This paper analyses the feasibility of
incorporating electric or hybrid vehicles in intermodal transport for the
transportation of containers in the pre- and post haulage (PPH) operation.
In Europe, the intermodal transport market is being strongly supported, as
it is seen as one of the keystones of a sustainable mobility system
policy. The introduction of environmentally friendly electric/hybrid
vehicles for the pre- and post haulage operation would mean a further
enhancement leading to a more complete ecological intermodal transport
chain. PPH operations are usually no longer than 30 km, and, hence, could
possibly be handled by electric or hybrid vehicles. Hybrid electric
vehicles (HEV) combine electric and other drive systems, such as internal
combustion engines, gas turbines and fuel cells. Hybrid electric vehicles
merge the zero pollution and high efficiency benefits of electric traction
with the high fuel energy density benefits of an energy source or thermal
engine. The use of electrically driven vehicles for goods distribution has
already been successfully proven in international demonstration projects,
such as ELCIDIS. Transport of intermodal units (such as ISO containers),
however, requires electric/hybrid heavy-duty goods vehicles, which are not
readily available on the market, but for which the technology exists.
Different possibilities are assessed as to their technical, financial,
organizational and environmental feasibility and suitability. This
analysis is based on a typical mission for pre-and post haulage
operations, such as type of trips, distance, frequency, urban/suburban,
etc.
Journal: Transportation Planning and Technology
Pages: 311-323
Issue: 2-3
Volume: 30
Year: 2006
Month: 1
X-DOI: 10.1080/03081060701395618
File-URL: http://hdl.handle.net/10.1080/03081060701395618
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Handle: RePEc:taf:transp:v:30:y:2006:i:2-3:p:311-323
Template-Type: ReDIF-Article 1.0
Author-Name: Frank Witlox
Author-X-Name-First: Frank
Author-X-Name-Last: Witlox
Author-Name: Wout Dullaert
Author-X-Name-First: Wout
Author-X-Name-Last: Dullaert
Author-Name: Bart Jourquin
Author-X-Name-First: Bart
Author-X-Name-Last: Jourquin
Title: Fostering Transport and Logistics Research in the Benelux Countries
Abstract:
Abstract Promoting high quality research and
education in the field of transport, within its region, is the main goal
of the Benelux Interuniversity Association of Transport Economists --
BIVEC-GIBET for short. Founded in 1978, the Association has evolved from a
small group of transport economists into a solid and broad-based network
of a diversity of transport experts. It presently unites both academic
staff and professional people qualified in fields such as transport
economics, logistics, regional economics, transport geography and
transport law. After a first successful period of 25 years of experience,
the BIVEC-GIBET organization is restructuring its activities in order to
offer a better fit between academics and leading transport organizations.
A first major event took place on November 30, 2005 at Hasselt University
with the organization of the first BIVEC-GIBET Transport Research Day. A
selection of contributions included in this special issue reflects the
diversity and multidisciplinary character of on-going research.
Journal: Transportation Planning and Technology
Pages: 325-329
Issue: 4
Volume: 30
Year: 2007
Month: 5
X-DOI: 10.1080/03081060701461659
File-URL: http://hdl.handle.net/10.1080/03081060701461659
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:4:p:325-329
Template-Type: ReDIF-Article 1.0
Author-Name: Veronique Van Acker
Author-X-Name-First: Veronique
Author-X-Name-Last: Van Acker
Author-Name: Frank Witlox
Author-X-Name-First: Frank
Author-X-Name-Last: Witlox
Author-Name: Bert Van Wee
Author-X-Name-First: Bert
Author-X-Name-Last: Van Wee
Title: The Effects of the Land Use System on Travel Behavior: A Structural Equation Modeling Approach
Abstract:
Abstract Notwithstanding the extensive research
that exists on the strength of the relationship between land use and
travel behavior, a consensus has not yet been reached. One possible
explanation may be the existence of a wide range of influencing variables.
Previous research assumed that the explanatory variables were not
influencing each other, thus ignoring the indirect effects on travel
behavior. Clearly, handling a wide range of explanatory variables and
multiple directions of influence requires more sophisticated research
techniques. Structural equation modeling (SEM) seems to be useful here.
Although SEM is a research technique dating from the 1970s, applications
involving travel behavior from the perspective of land use remain scarce.
Furthermore, evidence is mainly based on US data. Therefore, this paper
adds some new evidence from a European perspective to the research debate.
Our preliminary analysis indicates that socio-economic characteristics
influence travel behavior to a greater extent than land use. Furthermore,
indirect effects remain important to understand the complexity of travel
behavior.
Journal: Transportation Planning and Technology
Pages: 331-353
Issue: 4
Volume: 30
Year: 2007
Month: 5
X-DOI: 10.1080/03081060701461675
File-URL: http://hdl.handle.net/10.1080/03081060701461675
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:4:p:331-353
Template-Type: ReDIF-Article 1.0
Author-Name: Eef Delhaye
Author-X-Name-First: Eef
Author-X-Name-Last: Delhaye
Title: The Enforcement of Speeding: Should Fines be Higher for Repeated Offences?
Abstract:
Abstract When the fine structures for speeding
offences are observed, it is often found that fines depend on
speeders’ offence history. In this paper we devise two fine
structures: a uniform fine, and a fine which depends on offence history.
If drivers differ in their expected accident costs, the literature
prescribes that the fine for bad drivers should be higher than for good
drivers. However, governments do not know the type of driver. We develop a
model where the number of previous convictions gives information on the
type of driver. We find that the optimal fine structure depends on the
probability of detection, and on the strength of the relationship between
the type of driver and having a record. We illustrate this by means of a
numerical example and show that, for reasonable values for the probability
of detection, a uniform fine is preferred.
Journal: Transportation Planning and Technology
Pages: 355-375
Issue: 4
Volume: 30
Year: 2007
Month: 5
X-DOI: 10.1080/03081060701461758
File-URL: http://hdl.handle.net/10.1080/03081060701461758
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:4:p:355-375
Template-Type: ReDIF-Article 1.0
Author-Name: Steve Engelen
Author-X-Name-First: Steve
Author-X-Name-Last: Engelen
Author-Name: Wout Dullaert
Author-X-Name-First: Wout
Author-X-Name-Last: Dullaert
Author-Name: Bert Vernimmen
Author-X-Name-First: Bert
Author-X-Name-Last: Vernimmen
Title: Multi-Agent Adaptive Systems in Dry Bulk Shipping
Abstract:
Abstract Investment decisions in dry bulk
shipping form one of the most difficult managerial tasks due to the high
degree of uncertainty and the cyclical nature of the market. Adequate
information on ship prices is, therefore, crucial when justifying such
decisions. This paper is the first to embed trading rules in an
evolutionary agent-based system to dynamically incorporate different
traders’ beliefs on future ship prices. The model is applied to two
types of traders, two trading rules and three vessel types for the
newbuild and second-hand market in the period 1990--2005. The results
indicate that strategy selection is important to understand market
pricing. Traders are also shown to benefit from adjusting their strategies
over time and over vessel types.
Journal: Transportation Planning and Technology
Pages: 377-389
Issue: 4
Volume: 30
Year: 2007
Month: 5
X-DOI: 10.1080/03081060701461774
File-URL: http://hdl.handle.net/10.1080/03081060701461774
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:4:p:377-389
Template-Type: ReDIF-Article 1.0
Author-Name: Bert Vernimmen
Author-X-Name-First: Bert
Author-X-Name-Last: Vernimmen
Author-Name: Wout Dullaert
Author-X-Name-First: Wout
Author-X-Name-Last: Dullaert
Author-Name: Erik Geens
Author-X-Name-First: Erik
Author-X-Name-Last: Geens
Author-Name: Theo Notteboom
Author-X-Name-First: Theo
Author-X-Name-Last: Notteboom
Author-Name: Bob T'Jollyn
Author-X-Name-First: Bob
Author-X-Name-Last: T'Jollyn
Author-Name: Walter Van Gilsen
Author-X-Name-First: Walter
Author-X-Name-Last: Van Gilsen
Author-Name: Willy Winkelmans
Author-X-Name-First: Willy
Author-X-Name-Last: Winkelmans
Title: Underground Logistics Systems: A Way to Cope with Growing Internal Container Traffic in the Port of Antwerp?
Abstract:
Abstract During the last decade, container
traffic was the driving force behind the growth in cargo handling in the
port of Antwerp, Belgium. Between 1995 and 2005 container traffic almost
tripled, enabling Antwerp to increase its market share in the Hamburg-Le
Havre range. Moreover, various recent studies indicate that container
traffic will continue to grow strongly in the years to come. In order to
be able to respond to these growth perspectives and to safeguard the
future position of the port of Antwerp as a container mainport, a new
tidal container dock has been built on the left bank of the river Scheldt,
the so-called Deurganckdock. This dock will lead to large flows of
internal port container traffic between both river banks. As the
traditional hinterland transport modes offer insufficient capacity to
accommodate the increasing number of containers in the long-term, it seems
worthwhile to consider the idea of constructing a dedicated underground
logistics system (ULS) to transfer containers between both river banks.
This paper presents a first analysis of different variants of such a ULS.
Journal: Transportation Planning and Technology
Pages: 391-416
Issue: 4
Volume: 30
Year: 2007
Month: 5
X-DOI: 10.1080/03081060701461832
File-URL: http://hdl.handle.net/10.1080/03081060701461832
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:4:p:391-416
Template-Type: ReDIF-Article 1.0
Author-Name: Joan C. Rijsenbrij
Author-X-Name-First: Joan C.
Author-X-Name-Last: Rijsenbrij
Author-Name: Jaap A. Ottjes
Author-X-Name-First: Jaap A.
Author-X-Name-Last: Ottjes
Title: New Developments in Airport Baggage Handling Systems
Abstract:
Abstract In this paper, new concepts for baggage
transport to and from narrow-body aircraft are presented. Current baggage
transport is labor intensive and bears the risk of damaging or losing
bags. Moreover, it is time-critical because of tight flight schedules. An
alternative transport and scheduling method, as well as the application of
a prototype of a partly automated baggage loading and unloading vehicle
(baggage truck) have been investigated using simulation, and this is
reported in the first part of the paper. It appears that considerable
savings are possible when using both the scheduling method and the new
baggage vehicle. An increased security level is also to be expected. The
prototype baggage truck has been further developed into a swap-body
concept; this is presented in the second part of the paper.
Journal: Transportation Planning and Technology
Pages: 417-430
Issue: 4
Volume: 30
Year: 2007
Month: 5
X-DOI: 10.1080/03081060701461899
File-URL: http://hdl.handle.net/10.1080/03081060701461899
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:4:p:417-430
Template-Type: ReDIF-Article 1.0
Author-Name: Sangho Choo
Author-X-Name-First: Sangho
Author-X-Name-Last: Choo
Author-Name: Taihyeong Lee
Author-X-Name-First: Taihyeong
Author-X-Name-Last: Lee
Author-Name: Patricia L. Mokhtarian
Author-X-Name-First: Patricia L.
Author-X-Name-Last: Mokhtarian
Title: Relationships Between US Consumer Expenditures on Communications and Transportation Using Almost Ideal Demand System Modeling: 1984--2002
Abstract:
Abstract This study analyzes aggregate consumer
expenditure data from the US between 1984 and 2002, to determine
relationships between expenditures on transportation and communications.
We first identified 15 categories of goods -- nine for transportation,
five for communications, and one for all others -- and obtained prices for
each category across time. Then, we applied the linear approximate almost
ideal demand system (AIDS) method for estimating consumer demand
functions, aggregating the categories to six (non-personal vehicle (PV),
PV capital, PV operation, electronic communications media, print
communications media, and all others) due to the small sample size. The
results indicate that transportation and communications categories have
both substitution and complementarity relationships. The existence of
effects in both directions (substitution and complementarity) is testimony
to the complexity of the relationships involved, with both generation and
replacement possible and happening simultaneously. In addition,
expenditures in the transportation categories are generally more
income-elastic and price-elastic than those in communications, indicating
that communications expenditures are more essential than those for travel.
The transportation categories have both substitution and complementarity
relationships with each other, while the two communications categories
have a substitution relationship.
Journal: Transportation Planning and Technology
Pages: 431-453
Issue: 5
Volume: 30
Year: 2007
Month: 7
X-DOI: 10.1080/03081060701599920
File-URL: http://hdl.handle.net/10.1080/03081060701599920
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:5:p:431-453
Template-Type: ReDIF-Article 1.0
Author-Name: Daniel A. Badoe
Author-X-Name-First: Daniel A.
Author-X-Name-Last: Badoe
Title: Forecasting Travel Demand with Alternatively Structured Models of Trip Frequency
Abstract:
Abstract This paper develops alternatively
structured trip frequency/generation models, and investigates their
forecast performance. The first model presented is the simple linear model
with a discussion of its theoretical shortcomings. Models that address, in
a progressive fashion, the underlying shortcomings of the linear model are
then presented. These models are namely the truncated normal model, the
Poisson model, the negative binomial model, and an ordered logit model.
The modeling unit employed in the study is the individual. The models are
assessed by how closely they are able to replicate trips produced by each
individual in the dataset, and by each traffic zone. This assessment of
performance in prediction is conducted on an estimation dataset collected
in the Toronto Region in 1986, and on an independent dataset collected in
the same geographic region, 10 years later, in 1996. The results show
that, notwithstanding the simplicity of the simple linear model and its
lack of an explicit underlying travel behavioral theory, it predicts
travel in the base and forecast years with less error compared to any of
the more complex models.
Journal: Transportation Planning and Technology
Pages: 455-475
Issue: 5
Volume: 30
Year: 2007
Month: 7
X-DOI: 10.1080/03081060701599938
File-URL: http://hdl.handle.net/10.1080/03081060701599938
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:5:p:455-475
Template-Type: ReDIF-Article 1.0
Author-Name: Steven I.-J. Y. Chien
Author-X-Name-First: Steven I.-J. Y.
Author-X-Name-Last: Chien
Author-Name: Chuck F. M. Tsai
Author-X-Name-First: Chuck F. M.
Author-X-Name-Last: Tsai
Title: Optimization of Fare Structure and Service Frequency for Maximum Profitability of Transit Systems
Abstract:
Abstract Providing efficient public
transportation has been recognized as a potential way of alleviating
congestion, improving mobility, mitigating air pollution, and reducing
energy consumption. Many people use public transportation systems for
their daily commute, while others use different transportation modes (e.g.
cars, taxis, carpools, etc.). Inexpensive fares with good transit service
encourages ridership, and the resulting revenue may be used to provide
better service. Optimization of transit service frequency and its
associated fare structure is desirable in order to increase revenue at
reasonable transit operating expenditure. The objective of the study
reported here is to maximize profit subject to service capacity
constraint, while elastic demand is considered. The solution methodology
is developed and applied to solve the profit maximization problem in a
case study based on Newark, NJ, USA. Numerical results, including optimal
solutions and sensitivity analyses, are presented. It is found that an
optimal temporal headway and differential fare structure that maximizes
total profit for the studied subway system can be efficiently solved.
Journal: Transportation Planning and Technology
Pages: 477-500
Issue: 5
Volume: 30
Year: 2007
Month: 7
X-DOI: 10.1080/03081060701599961
File-URL: http://hdl.handle.net/10.1080/03081060701599961
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:5:p:477-500
Template-Type: ReDIF-Article 1.0
Author-Name: Milan Janic
Author-X-Name-First: Milan
Author-X-Name-Last: Janic
Title: A Heuristic Algorithm for the Allocation of Airport Runway System Capacity
Abstract:
Abstract This paper develops a heuristic
algorithm for the allocation of airport runway capacity to minimise the
cost of arrival and departure aircraft/flight delays. The algorithm is
developed as a potential alternative to optimisation models based on
linear and integer programming. The algorithm is based on heuristic
(‘greedy’) criteria that closely reflect the ‘rules
of thumb’ used by air traffic controllers. Using inputs such as
arrival and departure demand, airport runway system capacity envelopes and
cost of aircraft/flight delays, the main output minimises the cost of
arrival and departure delays as well as the corresponding interdependent
airport runway system arrival and departure capacity allocation. The
algorithm is applied to traffic scenarios at three busy US airports. The
results are used to validate the performance of the proposed heuristic
algorithm against results from selected benchmarking optimisation models.
Journal: Transportation Planning and Technology
Pages: 501-520
Issue: 5
Volume: 30
Year: 2006
Month: 11
X-DOI: 10.1080/03081060701599995
File-URL: http://hdl.handle.net/10.1080/03081060701599995
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2006:i:5:p:501-520
Template-Type: ReDIF-Article 1.0
Author-Name: D. R. Jones
Author-X-Name-First: D. R.
Author-X-Name-Last: Jones
Author-Name: D. E. Pitfield
Author-X-Name-First: D. E.
Author-X-Name-Last: Pitfield
Title: The Effectiveness of Conceptual Airport Terminal Designs
Abstract:
Abstract Aviation passenger traffic is forecast
to grow significantly over the next decade and beyond. To accommodate this
growth will require investment in airport infrastructure, including
terminals. These buildings represent large, lumpy investments, so it is
important to provide the capacity to accommodate the forecast traffic.
However, this depends on at least two factors: the accuracy of the
forecast of future demand, and the process of translating these forecasts
into designs. Error in either factor can be potentially catastrophic
financially. Translating forecasts into designs depends on ‘rules
of thumb’ formulae that convert design hour flows into area
requirements for each terminal facility. This paper examines the process
of translating demand forecasts into conceptual terminal designs. The
basic methods used are outlined, and how they affect the conceptual
terminal design process are revealed. A model for conceptual terminal
design is derived, presented and validated based on a sample of UK
airports. It is shown that even if demand forecasts can be taken to be
completely accurate, there can still be errors in terminal design and size
resulting from the use of these ‘rules of thumb’.
Journal: Transportation Planning and Technology
Pages: 521-543
Issue: 5
Volume: 30
Year: 2007
Month: 4
X-DOI: 10.1080/03081060701600009
File-URL: http://hdl.handle.net/10.1080/03081060701600009
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:5:p:521-543
Template-Type: ReDIF-Article 1.0
Author-Name: Rong-Chang Jou
Author-X-Name-First: Rong-Chang
Author-X-Name-Last: Jou
Author-Name: David A. Hensher
Author-X-Name-First: David A.
Author-X-Name-Last: Hensher
Author-Name: Ke-Hong Chen
Author-X-Name-First: Ke-Hong
Author-X-Name-Last: Chen
Title: Route Choice Behaviour of Freeway Travellers Under Real-time Traffic Information Provision -- Application of the Best Route and the Habitual Route Choice Mechanisms
Abstract:
Abstract This paper investigates route choice
behaviour on freeways between Taipei and Taichung in Taiwan under the
provision of real-time traffic information. Two types of route choice
selection rules (the best-route and habitual-route) are analysed using
ordered probit models to identify the major influences on freeway
travellers’ route choice behaviour. The level of service associated
with each route is defined as a generalised cost saving
(GCS) and specified non-linearly with a threshold
inherent to travellers. The marginal (dis)utility thresholds in the
‘best’ and ‘habitual’ behaviour models are
identified through a goodness-of-fit grid. The results confirm that the
thresholds for changing the inertia behaviour of drivers should be larger
than the ones for choosing the best routes. In addition, the drivers are
more likely to choose either the best or the habitual routes once the GCS
are greater than the identified threshold values.
Journal: Transportation Planning and Technology
Pages: 545-570
Issue: 6
Volume: 30
Year: 2007
Month: 8
X-DOI: 10.1080/03081060701698185
File-URL: http://hdl.handle.net/10.1080/03081060701698185
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:6:p:545-570
Template-Type: ReDIF-Article 1.0
Author-Name: Khaled F. Abdelghany
Author-X-Name-First: Khaled F.
Author-X-Name-Last: Abdelghany
Author-Name: Hani S. Mahmassani
Author-X-Name-First: Hani S.
Author-X-Name-Last: Mahmassani
Author-Name: Ahmed F. Abdelghany
Author-X-Name-First: Ahmed F.
Author-X-Name-Last: Abdelghany
Title: A Modeling Framework for Bus Rapid Transit Operations Evaluation and Service Planning
Abstract:
Abstract In this paper, we present a dynamic
traffic assignment-simulation modeling framework (DYNASMART-P) to support
the evaluation and planning of Bus Rapid Transit (BRT) services in urban
transportation networks. The model represents the different
characteristics associated with BRT operations such as: exclusive
right-of-way lanes, limited-stop service, signal prioritization at
congested intersections, and enhanced bus stops to reduce passenger
boarding times. A set of simulation experiments is conducted using the
model to study the impact of introducing a hypothetical BRT service in the
Knoxville area in the State of Tennessee. In these experiments, the
different operational characteristics of BRT are evaluated in terms of
potential impact on transit ridership and on the interacting auto traffic.
The results illustrate the advantages of BRT for increasing transit
ridership and improving overall system performance.
Journal: Transportation Planning and Technology
Pages: 571-591
Issue: 6
Volume: 30
Year: 2007
Month: 9
X-DOI: 10.1080/03081060701698219
File-URL: http://hdl.handle.net/10.1080/03081060701698219
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:6:p:571-591
Template-Type: ReDIF-Article 1.0
Author-Name: Daehyon Kim
Author-X-Name-First: Daehyon
Author-X-Name-Last: Kim
Author-Name: Seungjae Lee
Author-X-Name-First: Seungjae
Author-X-Name-Last: Lee
Author-Name: Seongkil Cho
Author-X-Name-First: Seongkil
Author-X-Name-Last: Cho
Title: Input Vector Normalization Methods in Support Vector Machines for Automatic Incident Detection
Abstract:
Abstract It is known that support vector
machines (SVMs), based on statistical learning theory, are an efficient
approach to solving the pattern recognition problem because of their
remarkable performance in terms of prediction accuracy. When applying
SVMs, the input vectors should be normalized. The prediction performance
would differ according to the normalization method used. Thus, it is
important to choose an efficient method for normalizing input vectors as
this could improve the prediction performance of the SVMs. In this paper,
various normalization methods for input vectors have been studied and the
best normalization method proposed to achieve the best performance in
automatic incident detection. The experimental results show that the
performance of an automatic incident detection system using SVMs can be
highly dependent on the method used in normalizing the input vectors, and
that the proposed normalization method is the most efficient method for
automatic incident detection.
Journal: Transportation Planning and Technology
Pages: 593-608
Issue: 6
Volume: 30
Year: 2007
Month: 7
X-DOI: 10.1080/03081060701698235
File-URL: http://hdl.handle.net/10.1080/03081060701698235
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:6:p:593-608
Template-Type: ReDIF-Article 1.0
Author-Name: Ming Zhong
Author-X-Name-First: Ming
Author-X-Name-Last: Zhong
Author-Name: Satish Sharma
Author-X-Name-First: Satish
Author-X-Name-Last: Sharma
Author-Name: Pawan Lingras
Author-X-Name-First: Pawan
Author-X-Name-Last: Lingras
Title: Rationalizing Reliable Imputation Durations of Genetically Designed Time Delay Neural Network and Locally Weighted Regression Models
Abstract:
Abstract Estimating missing values is known as
data imputation. Previous research has shown that genetic algorithms (GAs)
designed locally weighted regression (LWR) and time delay neural network
(TDNN) models can generate more accurate hourly volume imputations for a
period of 12 successive hours than traditional methods used by highway
agencies. It would be interesting and important to further refine the
models for imputing larger missing intervals. Therefore, a large number of
genetically designed LWR and TDNN models are developed in this study and
used to impute up to a week-long missing interval (168 hours) for sample
traffic counts obtained from various groups of roads in Alberta, Canada.
It is found that road type and functional class have considerable
influences on reliable imputations. The reliable imputation durations
range from 4--5 days for traffic counts with most unstable patterns to
over 10 days for those with most stable patterns. The study results
clearly show that calibrated GA-designed models can provide reliable
imputations for missing data with ‘block patterns’, and
demonstrate their further potentials in traffic data programs.
Journal: Transportation Planning and Technology
Pages: 609-626
Issue: 6
Volume: 30
Year: 2007
Month: 7
X-DOI: 10.1080/03081060701698250
File-URL: http://hdl.handle.net/10.1080/03081060701698250
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:6:p:609-626
Template-Type: ReDIF-Article 1.0
Author-Name: Banihan Gunay
Author-X-Name-First: Banihan
Author-X-Name-Last: Gunay
Title: Detection Algorithms of Intentional Car Following on Smart Networks: A Primary Methodology
Abstract:
Abstract This paper explores the possibility of
detecting certain movements of vehicles that might provide useful
information for crime investigations. It is known that existing car
following models are interested in microscopic interactions between
vehicles in randomly formed pairs. The present work, however, introduces
the concept of macroscopic analysis of vehicle positions on a network and
the idea of seeking if these movements exhibit any meaningful
relationships. First of all detection algorithms are produced for two
possible types of detection: (a) was a particular vehicle followed by any
vehicle? and (b) did a particular vehicle follow any vehicle? These
algorithms assume that every link in the network is equipped with some
sort of vehicle identification or tracking device and the identities of
all vehicles, such as their number plates, are fed into the program. Then
a simulation program is developed to implement the first algorithm (Type
(a)), as an example, to visualise the concept. Since the present paper is
a preliminary and basic approach to the problem, a number of issues and
details requiring further research, together with the directions which
could be taken, are also identified and discussed.
Journal: Transportation Planning and Technology
Pages: 627-642
Issue: 6
Volume: 30
Year: 2007
Month: 7
X-DOI: 10.1080/03081060701698268
File-URL: http://hdl.handle.net/10.1080/03081060701698268
File-Format: text/html
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Handle: RePEc:taf:transp:v:30:y:2007:i:6:p:627-642
Template-Type: ReDIF-Article 1.0
Author-Name: Warren E. Walker
Author-X-Name-First: Warren E.
Author-X-Name-Last: Walker
Author-Name: Vincent Marchau
Author-X-Name-First: Vincent
Author-X-Name-Last: Marchau
Author-Name: Odette Van De Riet
Author-X-Name-First: Odette
Author-X-Name-Last: Van De Riet
Title: Special Issue of Transportation Planning and Technology ‘Approaches to Developing the Airport of the Future’
Journal: Transportation Planning and Technology
Pages: 1-9
Issue: 1
Volume: 31
Year: 2007
Month: 11
X-DOI: 10.1080/03081060701835662
File-URL: http://hdl.handle.net/10.1080/03081060701835662
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2007:i:1:p:1-9
Template-Type: ReDIF-Article 1.0
Author-Name: Roland A. A. Wijnen
Author-X-Name-First: Roland A. A.
Author-X-Name-Last: Wijnen
Author-Name: Warren E. Walker
Author-X-Name-First: Warren E.
Author-X-Name-Last: Walker
Author-Name: Jan H. Kwakkel
Author-X-Name-First: Jan H.
Author-X-Name-Last: Kwakkel
Title: Decision Support for Airport Strategic Planning
Abstract:
Abstract Master Planning is currently the
dominant approach to airport strategic planning. However, history shows
that this approach can often result in costly mistakes. Because there are
many stakeholders with conflicting objectives, deep uncertainty about the
future, and many potential strategies, planners often
narrow their scope by using a single forecast for the future, leaving out
alternative strategies, and excluding stakeholders, resulting in a Master
Plan that quickly becomes obsolete and may be opposed by some
stakeholders. What is needed is a flexible, integrated approach that
enables collaboration among stakeholders. Such an approach can be
facilitated using a Decision Support System (DSS) that provides a way for
decisionmakers and stakeholders to evaluate alternatives quickly and
easily with respect to their outcomes of interest. We present the
conceptual design for a DSS called HARMOS, showing how it meets the
high-level requirements for airport strategic planning while addressing
the problems associated with Master Planning.
Journal: Transportation Planning and Technology
Pages: 11-34
Issue: 1
Volume: 31
Year: 2007
Month: 11
X-DOI: 10.1080/03081060701835670
File-URL: http://hdl.handle.net/10.1080/03081060701835670
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2007:i:1:p:11-34
Template-Type: ReDIF-Article 1.0
Author-Name: Richard De Neufville
Author-X-Name-First: Richard
Author-X-Name-Last: De Neufville
Title: Low-Cost Airports for Low-Cost Airlines: Flexible Design to Manage the Risks
Abstract:
Abstract Airport planning is shifting from the
traditional pattern -- driven by long-term point forecasts, high
standards, and established clients -- to that of recognizing great
forecast uncertainty, many standards and changeable clients. This is a
consequence of economic deregulation of aviation and the rise of low-cost
airlines. Low-cost airlines are becoming significant factors in airport
planning. Their requirements differ from those of ‘legacy’
carriers. They drive the development of secondary airports and cheaper
airport terminals. They catalyze ‘low-cost airports’ around
the ‘legacy main airports’ built for the ‘legacy
airlines’. This paper proposes a flexible design strategy to deal
with the uncertainty of this dynamic. This differs significantly from
traditional airport master planning. It builds flexibility into the
design, to enable airports to adjust to changes in the type, needs and
location of traffic. The case of Portugal illustrates the current risks,
and indicates how flexible design could manage uncertainties and maximize
expected value.
Journal: Transportation Planning and Technology
Pages: 35-68
Issue: 1
Volume: 31
Year: 2007
Month: 11
X-DOI: 10.1080/03081060701835688
File-URL: http://hdl.handle.net/10.1080/03081060701835688
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2007:i:1:p:35-68
Template-Type: ReDIF-Article 1.0
Author-Name: Daniel A. Delaurentis
Author-X-Name-First: Daniel A.
Author-X-Name-Last: Delaurentis
Author-Name: Donald N. Fry
Author-X-Name-First: Donald N.
Author-X-Name-Last: Fry
Title: Understanding the Implications for Airports of Distributed Air Transportation Using a System-of-Systems Approach
Abstract:
Abstract This paper merges two perspectives to
better understand the future requirements for airports. From the
methodological perspective, a system-of-systems (SoS) approach is employed
to provide structure to the numerous, multi-level aspects crucial to
understanding air transportation dynamics. From the operational
perspective, distributed on-demand air service is introduced as a new
service paradigm. This new service intends to improve
doorstep--destination mobility for regional intercity trips. Its
realization could dramatically shift the loading on the present day
network of airports. To examine the potential impacts, network models are
developed from the SoS foundation for the new on-demand service, a
hub-and-spoke network topology, and a scheduled point-to-point service. An
example is provided which illustrates the implications of these service
models on airport fitness using Indiana airports as a case study. The
ability of an airport to be part of many preferred trips, its network
centrality, is found to drive fitness in distributed service models. The
overarching objective of the approach is to provide decision support for
airports that integrate all relevant dimensions -- economics, technology,
operations, and policies.
Journal: Transportation Planning and Technology
Pages: 69-92
Issue: 1
Volume: 31
Year: 2007
Month: 11
X-DOI: 10.1080/03081060701835738
File-URL: http://hdl.handle.net/10.1080/03081060701835738
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2007:i:1:p:69-92
Template-Type: ReDIF-Article 1.0
Author-Name: Loan Le
Author-X-Name-First: Loan
Author-X-Name-Last: Le
Author-Name: George Donohue
Author-X-Name-First: George
Author-X-Name-Last: Donohue
Author-Name: Karla Hoffman
Author-X-Name-First: Karla
Author-X-Name-Last: Hoffman
Author-Name: Chun-Hung Chen
Author-X-Name-First: Chun-Hung
Author-X-Name-Last: Chen
Title: Optimum Airport Capacity Utilization under Congestion Management: A Case Study of New York LaGuardia Airport
Abstract:
Abstract In the United States, most airports do
not place any limitations on airline schedules. At a few major airports,
the current scheduling restrictions (mostly administrative measures) have
not been sufficiently strict to avoid consistent delays and have raised
debates about both the efficiency and the fairness of the allocations.
With a forecast of 1.1 billion yearly air travelers within the US by 2015,
airport expansion and technology enhancement alone are not enough to cope
with the competition-driven scheduling practices of the airline industry.
The policy legacy needs to change to be consistent with airport
capacities. Flights on US airlines arrived late more often in the first
four months of 2007 than in any other year since the government began
tracking delays, and flight cancellations increased 91% over 2006. With a
forecast of 1.1 billion yearly air travelers within the US by 2015,
airport expansion and technology enhancement alone are not enough to cope
with the competition-driven scheduling practices of the airline industry.
Our research studies how flight schedules might change if airlines were
required to restrict their schedules to runway capacity. To obtain these
schedules, we model a profit-seeking, single benevolent airline whose goal
is to maintain current competitive prices and service as many current
passengers as possible, while remaining profitable. Our case study
demonstrates that at Instrument Meteorological Conditions (IMC) runway
rates, the market can find profitable flight schedules that reduce
substantially the average flight delay to less than 6 minutes while
simultaneously satisfying virtually all of the current demand with average
prices remaining unchanged. This is accomplished through significant
upgauging to high-demand markets.
Journal: Transportation Planning and Technology
Pages: 93-112
Issue: 1
Volume: 31
Year: 2007
Month: 11
X-DOI: 10.1080/03081060701835779
File-URL: http://hdl.handle.net/10.1080/03081060701835779
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Handle: RePEc:taf:transp:v:31:y:2007:i:1:p:93-112
Template-Type: ReDIF-Article 1.0
Author-Name: Milan Janic
Author-X-Name-First: Milan
Author-X-Name-Last: Janic
Title: The Future Development of Airports: A Multidimensional Examination
Abstract:
Abstract The development of airports as the main
component of air transport system infrastructure is influenced by direct
external developments (such as the globalisation and privatisation of the
airline industry, deregulation of domestic and liberalisation of
international markets, increased airline competition and volatile prices
of the major airlines) and indirect external developments (such as
socio-economic forces and political events influencing the growth of air
transport demand). This paper examines the past, current and future
development of airports through four dimensions: (i) operational, sizing,
and design of the airside and landside infrastructure; (ii) economic;
(iii) environmental; and (iv) social. The prospective future development
of airports through these dimensions is synthesised using cases from the
European and the US air transport systems.
Journal: Transportation Planning and Technology
Pages: 113-134
Issue: 1
Volume: 31
Year: 2007
Month: 11
X-DOI: 10.1080/03081060701835803
File-URL: http://hdl.handle.net/10.1080/03081060701835803
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2007:i:1:p:113-134
Template-Type: ReDIF-Article 1.0
Author-Name: Dušan Teodorović
Author-X-Name-First: Dušan
Author-X-Name-Last: Teodorović
Author-Name: Mauro Dell’ Orco
Author-X-Name-First: Mauro
Author-X-Name-Last: Dell’ Orco
Title: Mitigating Traffic Congestion: Solving the Ride-Matching Problem by Bee Colony Optimization
Abstract:
Abstract Urban road networks in many countries
are severely congested. Expanding traffic network capacities by building
more roads is very costly as well as environmentally damaging.
Researchers, planners, and transportation professionals have developed
various Travel Demand Management (TDM) techniques, i.e. strategies that
increase travel choices to travelers. Ride sharing is one of the widely
used TDM techniques that assumes the participation of two or more persons
that together share a vehicle when traveling from few origins to few
destinations. In ride-matching systems, commuters wishing to participate
in ride sharing are matched by where they live and work, and by their work
schedule. There is no standard method in the open literature to determine
the best ride-matching method. In this paper, an attempt has been made to
develop the methodology capable to solve the ride-matching problem. The
proposed Bee Colony Optimization Metaheuristic is sufficiently general and
could be applied to various combinatorial optimization problems.
Journal: Transportation Planning and Technology
Pages: 135-152
Issue: 2
Volume: 31
Year: 2008
Month: 1
X-DOI: 10.1080/03081060801948027
File-URL: http://hdl.handle.net/10.1080/03081060801948027
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2008:i:2:p:135-152
Template-Type: ReDIF-Article 1.0
Author-Name: Hakim Hammadou
Author-X-Name-First: Hakim
Author-X-Name-Last: Hammadou
Author-Name: Isabelle Thomas
Author-X-Name-First: Isabelle
Author-X-Name-Last: Thomas
Author-Name: Ann Verhetsel
Author-X-Name-First: Ann
Author-X-Name-Last: Verhetsel
Author-Name: Frank Witlox
Author-X-Name-First: Frank
Author-X-Name-Last: Witlox
Title: How to Incorporate the Spatial Dimension in Destination Choice Models: The Case of Antwerp
Abstract:
Abstract This paper presents and estimates
destination choice models based on a large sample of intra-urban trips.
Particular attention is paid to incorporating the effects of the spatial
dimension. The data used relate to non-work trips in the agglomeration of
Antwerp (Belgium). A geographical analysis is performed in order to
represent the city and its suburbs by a limited set of zones of
destinations and to characterize these zones in terms of land use.
Different types of discrete choice model are compared in terms of utility
function, global formulation and performance. The mixed nested logit
formulation with random coefficients appears to be the most attractive.
The results confirm the difficulty of grasping spatial realities by simple
quantitative measurements but also illustrate the importance of
‘space’ when choosing a destination. The empirical results
also show that land use and urban development policies clearly have their
effect on urban mobility.
Journal: Transportation Planning and Technology
Pages: 153-181
Issue: 2
Volume: 31
Year: 2008
Month: 1
X-DOI: 10.1080/03081060801948126
File-URL: http://hdl.handle.net/10.1080/03081060801948126
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2008:i:2:p:153-181
Template-Type: ReDIF-Article 1.0
Author-Name: Sujith Racha
Author-X-Name-First: Sujith
Author-X-Name-Last: Racha
Author-Name: Mashrur Chowdhury
Author-X-Name-First: Mashrur
Author-X-Name-Last: Chowdhury
Author-Name: Wayne Sarasua
Author-X-Name-First: Wayne
Author-X-Name-Last: Sarasua
Author-Name: Yongchang Ma
Author-X-Name-First: Yongchang
Author-X-Name-Last: Ma
Title: Analysis of Work Zone Traffic Behavior for Planning Applications
Abstract:
Abstract Understanding work zone traffic
behavior is important for the planning and operation of work zones. The
objective of this paper is to develop a mathematical model of work zone
traffic flow elements by analyzing the relationships between speed, flow,
and density that can be used to estimate the capacity of work zones.
Traffic flow data were collected from 22 work zone sites on South Carolina
interstate highways. The scatter plots of the collected data demonstrate
that the relationship between speed and density does not follow
Greenshields’ linear model. A non-linear hyperbolic model was
developed to describe the relationship between speed and density. Using
this model the capacity of a work zone was estimated to be 1550 passenger
cars per hour for 2-lane to 1-lane closures. Adjustments to this capacity
value to consider other types of vehicle as well as the work zone
intensity are provided. Highway agencies can use this estimated capacity
along with anticipated traffic demand to schedule work zone operations to
avoid long periods of over-saturation. The tapered approach to work zone
lane closures used by South Carolina is similar to methods used in work
zones throughout the world. The authors believe that the methodology
described in this paper for modeling work zone traffic as well as
estimating work zone capacity is transferable to other countries. The
conversion of actual volumes to passenger car equivalents may have to be
modified due to the significant differences in traffic makeup between the
United States and other countries.
Journal: Transportation Planning and Technology
Pages: 183-199
Issue: 2
Volume: 31
Year: 2007
Month: 10
X-DOI: 10.1080/03081060801948175
File-URL: http://hdl.handle.net/10.1080/03081060801948175
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Handle: RePEc:taf:transp:v:31:y:2007:i:2:p:183-199
Template-Type: ReDIF-Article 1.0
Author-Name: Sander J. Heblij
Author-X-Name-First: Sander J.
Author-X-Name-Last: Heblij
Author-Name: Roland A. A. Wijnen
Author-X-Name-First: Roland A. A.
Author-X-Name-Last: Wijnen
Title: Development of a Runway Allocation Optimisation Model for Airport Strategic Planning
Abstract:
Abstract This paper describes the development of
a runway allocation optimisation model to be used for airport strategic
planning. It optimises the allocation of flights to runways on an annual
basis, with respect to delay, noise and safety. The multi-objective
optimisation is subject to a number of constraints, related to operational
procedures, runway capacity and weather conditions. To reach a final
non-dominated solution for the multi-objective problem, an interactive
optimisation method has been implemented. This has resulted in a very
convenient and easy-to-use optimisation procedure. Although the model has
to be extended to handle more complex operational situations, the results
with respect to the reduction of aircraft noise annoyance and total
third-party risk are promising.
Journal: Transportation Planning and Technology
Pages: 201-214
Issue: 2
Volume: 31
Year: 2007
Month: 7
X-DOI: 10.1080/03081060801948191
File-URL: http://hdl.handle.net/10.1080/03081060801948191
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2007:i:2:p:201-214
Template-Type: ReDIF-Article 1.0
Author-Name: Cheng-Lung Wu
Author-X-Name-First: Cheng-Lung
Author-X-Name-Last: Wu
Title: Monitoring Aircraft Turnaround Operations -- Framework Development, Application and Implications for Airline Operations
Abstract:
Abstract A real-time operation monitoring system
-- Aircraft Turnaround Monitoring System -- is developed based on a system
framework to monitor aircraft turnaround operations at an airport. Mobile
computing devices (PDAs) and wireless network technology General Packet
Radio Service (GPRS) are used to implement the real-time monitoring system
for an airline. System implementation and test results indicate that
real-time operation monitoring can potentially reduce delays occurring
from airline operations. Proactive measures can be taken immediately by
ground handling staff to reduce delays, once the risk of delays and
potential delay propagation is identified. The availability of detailed
operating data can help airlines identify the root delay causes from
complex connections among aircraft, flight/cabin crew and passengers. In
addition, these operating data also shed some light on the future
development of aircraft routing algorithms in order to consider explicitly
stochastic disruptions and delay propagation in airline schedule planning.
Journal: Transportation Planning and Technology
Pages: 215-228
Issue: 2
Volume: 31
Year: 2007
Month: 12
X-DOI: 10.1080/03081060801948233
File-URL: http://hdl.handle.net/10.1080/03081060801948233
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2007:i:2:p:215-228
Template-Type: ReDIF-Article 1.0
Author-Name: Catherine Morency
Author-X-Name-First: Catherine
Author-X-Name-Last: Morency
Title: Enhancing the Travel Survey Process and Data Using the CATI System
Abstract:
Abstract This paper describes an intelligent
interface developed to assist in the task of collecting detailed
information regarding daily travel behaviours. The computer-assisted
telephone interview (CATI) system, developed by the MADITUC Research Group
for the Montreal large-scale travel surveys, is structured in three main
screens (household, person and trip) and assists the interaction between
an interviewer and a respondent during a phone interview. This tool
enhances the quality of the data collected by performing real-time
validation of the spatio-temporal details related to travel behaviours. In
addition to describing the design of the CATI tool, this paper proposes
some empirical measurements associated with the CATI use by the
interviewers owing to the processing of numerical logs saving every action
taken by the user during an interview. Using these data, variables
significantly influencing interview duration are identified.
Journal: Transportation Planning and Technology
Pages: 229-248
Issue: 2
Volume: 31
Year: 2008
Month: 1
X-DOI: 10.1080/03081060801948241
File-URL: http://hdl.handle.net/10.1080/03081060801948241
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Handle: RePEc:taf:transp:v:31:y:2008:i:2:p:229-248
Template-Type: ReDIF-Article 1.0
Author-Name: Mark A. Stull
Author-X-Name-First: Mark A.
Author-X-Name-Last: Stull
Title: Design Considerations for a 21st Century Ground Transportation System Based on Value-Capture Financing
Abstract:
Abstract Numerous studies have demonstrated that
transportation systems raise property values and stimulate economic
growth, and it has been proposed that some of this value enhancement might
be captured to finance their construction and/or operation. However, other
studies suggests that recently constructed urban rail systems have had
only marginal economic impact, implying that mass transit investments may
not create significant value-capture potential. Census data suggests an
explanation for this discrepancy, specifically, that transportation
systems elevate property values and income levels in a given location by
increasing the number of people who have access to that location. To
generate more than a marginal economic effect, a transportation system
should represent a quantum leap over the accessibility provided by the
existing network. Accessibility, as well as ridership, depend upon
capacity and load factor, which can be affected by fare structure, system
design and choice of transportation technology. Capacity and load factor
are increased by high-speed, high-acceleration systems based on small
vehicles, short headways, central control, dynamic scheduling, and
off-line stations. As a result, electromagnetic propulsion with a linear
motor has, by far, the greatest value-capture potential of any ground
transportation technology.
Journal: Transportation Planning and Technology
Pages: 249-275
Issue: 3
Volume: 31
Year: 2008
Month: 1
X-DOI: 10.1080/03081060802086330
File-URL: http://hdl.handle.net/10.1080/03081060802086330
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Handle: RePEc:taf:transp:v:31:y:2008:i:3:p:249-275
Template-Type: ReDIF-Article 1.0
Author-Name: An Caris
Author-X-Name-First: An
Author-X-Name-Last: Caris
Author-Name: Cathy Macharis
Author-X-Name-First: Cathy
Author-X-Name-Last: Macharis
Author-Name: Gerrit K. Janssens
Author-X-Name-First: Gerrit K.
Author-X-Name-Last: Janssens
Title: Planning Problems in Intermodal Freight Transport: Accomplishments and Prospects
Abstract:
Abstract Intermodal freight transport has
received increased attention due to problems of road congestion,
environmental concerns and traffic safety. A growing recognition of the
strategic importance of speed and agility in the supply chain is forcing
firms to reconsider traditional logistic services. As a consequence,
research interest in intermodal freight transportation problems is
growing. This paper provides an overview of planning decisions in
intermodal freight transport and solution methods proposed in the
scientific literature. Planning problems are classified according to the
type of decision maker and decision level. General conclusions are given
and subjects for further research are identified.
Journal: Transportation Planning and Technology
Pages: 277-302
Issue: 3
Volume: 31
Year: 2007
Month: 12
X-DOI: 10.1080/03081060802086397
File-URL: http://hdl.handle.net/10.1080/03081060802086397
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2007:i:3:p:277-302
Template-Type: ReDIF-Article 1.0
Author-Name: José Ap. Sorratini
Author-X-Name-First: José
Author-X-Name-Last: Ap. Sorratini
Author-Name: Ronghui Liu
Author-X-Name-First: Ronghui
Author-X-Name-Last: Liu
Author-Name: Shalini Sinha
Author-X-Name-First: Shalini
Author-X-Name-Last: Sinha
Title: Assessing Bus Transport Reliability Using Micro-Simulation
Abstract:
Abstract A wide range of public transport
schemes have been proposed and put in practice to improve bus service
reliability (including bus lanes, bus priority signals, passenger
information systems, etc.). Central to the successful evaluation of such
operational and management measures is to have reliability indicators
which are easy to measure and can be used readily by operators to identify
unreliable services and by regulatory authorities to set standards. This
paper investigates measures to assess reliability, such as headway, excess
waiting time, service regularity and recovery time of an urban network,
using a dynamic micro-simulation model (DRACULA). In this paper, the model
results from a test case study are presented. The significant factors
affecting each measure are identified and the relative merits of the
indicators are discussed with regard to their practical contribution to
public transport reliability.
Journal: Transportation Planning and Technology
Pages: 303-324
Issue: 3
Volume: 31
Year: 2007
Month: 12
X-DOI: 10.1080/03081060802086512
File-URL: http://hdl.handle.net/10.1080/03081060802086512
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2007:i:3:p:303-324
Template-Type: ReDIF-Article 1.0
Author-Name: Tri Basuki Joewono
Author-X-Name-First: Tri
Author-X-Name-Last: Basuki Joewono
Author-Name: Hisashi Kubota
Author-X-Name-First: Hisashi
Author-X-Name-Last: Kubota
Title: Paratransit Service in Indonesia: User Satisfaction and Future Choice
Abstract:
Abstract This paper explores user satisfaction
with making use of paratransit in Bandung, Indonesia. User perceptions of
attributes are analyzed using factor analysis to find representing
attribute types and factors of service quality. Ordinal probit analysis is
employed to explore the characteristics of users regarding their
perception of satisfaction with the paratransit service. Binary logistic
analysis is undertaken to predict users’ choice probability in
making use of paratransit in the future when there is a service
improvement. The study reveals that what may be of importance in developed
countries carries a different weight of importance for paratransit users.
This fact can be explained by describing the characteristics of users that
expressed their satisfaction, which also explains the target market for
this mode. The analysis reveals the notion that financial motives seem to
dominate when users select to use paratransit.
Journal: Transportation Planning and Technology
Pages: 325-345
Issue: 3
Volume: 31
Year: 2007
Month: 1
X-DOI: 10.1080/03081060802087692
File-URL: http://hdl.handle.net/10.1080/03081060802087692
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2007:i:3:p:325-345
Template-Type: ReDIF-Article 1.0
Author-Name: Hannibal Bwire
Author-X-Name-First: Hannibal
Author-X-Name-Last: Bwire
Title: A Unified Framework for Selecting a Travel Demand Forecasting Model for Developing Countries
Abstract:
Abstract The ability to judge and select a model
that is appropriate for a particular application is considered to be one
of the most important aspects in contemporary transport planning. However,
there is no suitable procedure for the systematic selection of a model
that is most appropriate for meeting the needs and requirements of a
particular planning task. Although there is little literature on the
criteria for model assessment and selection methodologies, none can
support systematic evaluation of different models versus quality of
obtainable data versus efforts for data provision. Such deficiencies
support the need for further guidance on a model selection procedure for
developing countries where efforts for data provision are highly
susceptible to higher sampling and measurement errors. This study presents
a unified framework for the systematic model selection process. Evaluation
of the framework for a case study of Dar es Salaam city in Tanzania
evidences its benefits and applicability.
Journal: Transportation Planning and Technology
Pages: 347-368
Issue: 3
Volume: 31
Year: 2007
Month: 7
X-DOI: 10.1080/03081060802087809
File-URL: http://hdl.handle.net/10.1080/03081060802087809
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2007:i:3:p:347-368
Template-Type: ReDIF-Article 1.0
Author-Name: Youngho Kim
Author-X-Name-First: Youngho
Author-X-Name-Last: Kim
Author-Name: Hartmut Keller
Author-X-Name-First: Hartmut
Author-X-Name-Last: Keller
Title: Analysis of Characteristics of the Dynamic Flow-Density Relation and its Application to Traffic Flow Models
Abstract:
Abstract Online traffic flow modeling is of
increasing importance due to intelligent transport systems and
technologies. The flow-density relation plays an important role in traffic
flow modeling and provides a basic way to illustrate traffic flow behavior
under different traffic flow and traffic density conditions. Until now the
research effort has focused mainly on the shape of the relation. The time
series of the relation has not been identified clearly, even though the
time series of the relation reflects the upstream/downstream traffic
conditions and should be considered in the traffic flow modeling. In this
paper, the dynamic flow-density relation is identified based on the
classification of traffic states and is quantified employing fuzzy logic.
The quantified dynamic flow-density relation builds the basis for online
application of a macroscopic traffic flow model. The new approach to
online modeling of traffic flow applying the dynamic flow-density relation
alleviates parameter calibration problems stemming from the static
flow-density relation.
Journal: Transportation Planning and Technology
Pages: 369-397
Issue: 4
Volume: 31
Year: 2008
Month: 3
X-DOI: 10.1080/03081060802334995
File-URL: http://hdl.handle.net/10.1080/03081060802334995
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:31:y:2008:i:4:p:369-397
Template-Type: ReDIF-Article 1.0
Author-Name: Dušan Teodorović
Author-X-Name-First: Dušan
Author-X-Name-Last: Teodorović
Author-Name: Konstantinos Triantis
Author-X-Name-First: Konstantinos
Author-X-Name-Last: Triantis
Author-Name: Praveen Edara
Author-X-Name-First: Praveen
Author-X-Name-Last: Edara
Author-Name: Yueqin Zhao
Author-X-Name-First: Yueqin
Author-X-Name-Last: Zhao
Author-Name: Snežana Mladenović
Author-X-Name-First: Snežana
Author-X-Name-Last: Mladenović
Title: Auction-Based Congestion Pricing
Abstract:
Abstract Planners, engineers and economists have
introduced various demand management methods in an attempt to reduce the
fast growing traffic congestion. The basic idea behind various demand
management strategies is to force drivers to travel and use transportation
facilities more during off-peak hours and less during peak hours, as well
as to increase the usage of underutilized routes. In this paper, a new
demand management concept -- Auction-based Congestion Pricing -- is
proposed and modeled.
Journal: Transportation Planning and Technology
Pages: 399-416
Issue: 4
Volume: 31
Year: 2008
Month: 3
X-DOI: 10.1080/03081060802335042
File-URL: http://hdl.handle.net/10.1080/03081060802335042
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2008:i:4:p:399-416
Template-Type: ReDIF-Article 1.0
Author-Name: Tianze Xu
Author-X-Name-First: Tianze
Author-X-Name-Last: Xu
Author-Name: Heng Wei
Author-X-Name-First: Heng
Author-X-Name-Last: Wei
Author-Name: Anastasios M. Ioannides
Author-X-Name-First: Anastasios M.
Author-X-Name-Last: Ioannides
Title: Modeling Capacity Reliability of Minor Roads at At-Grade Un-Signalized Intersections for Potential Performance Evaluation
Abstract:
Abstract Given stochastic features of the
demands on both the major road and the minor road at an at-grade
un-signalized intersection, the capacity of the minor road is viewed as
the vulnerable and critical part impacting on the overall capacity of the
intersection. To facilitate the analysis of intersection performance
reliability, the capacity reliability of the minor road is defined as the
probability that the capacity of the minor road can accommodate a certain
traffic demand at a certain degree of saturation. The headway distribution
of traffic stream on major road is reflected by three types of
distributions, namely, exponential distribution, shifted exponential
distribution, and Cowan's M3 distribution. Based on field observations,
the volumes on both major roads and minor roads are treated as correlated
normal random variables. This paper presents the methods for modeling
capacity reliability of the minor road at an at-grade un-signalized
priority intersection. A method based on first-order reliability method is
used to model the capacity reliability index. As important associated
factors of capacity reliability analysis, the methods for modeling and
analyzing capacity sensitivity of the minor road and reserve capacity of
the priority intersection are also presented. A procedure for evaluating
the intersection potential performance using capacity reliability,
sensitivity and reserve capacity is developed and demonstrated with a
numerical example. Finally, some new findings from the case studies are
summarized.
Journal: Transportation Planning and Technology
Pages: 417-433
Issue: 4
Volume: 31
Year: 2008
Month: 3
X-DOI: 10.1080/03081060802335091
File-URL: http://hdl.handle.net/10.1080/03081060802335091
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2008:i:4:p:417-433
Template-Type: ReDIF-Article 1.0
Author-Name: Christa Sys
Author-X-Name-First: Christa
Author-X-Name-Last: Sys
Author-Name: Gust Blauwens
Author-X-Name-First: Gust
Author-X-Name-Last: Blauwens
Author-Name: Eddy Omey
Author-X-Name-First: Eddy
Author-X-Name-Last: Omey
Author-Name: Eddy Van De Voorde
Author-X-Name-First: Eddy
Author-X-Name-Last: Van De Voorde
Author-Name: Frank Witlox
Author-X-Name-First: Frank
Author-X-Name-Last: Witlox
Title: In Search of the Link between Ship Size and Operations
Abstract:
Abstract Since 1990s the liner shipping industry
has faced a period of restructuring and consolidation, and been confronted
with a continuing increase in container vessel scale. The impact of these
changes is noticeable in trade patterns, cargo handling methods and
shipping routes, in short ‘operations’. After listing
factors influencing size, growth in container ship size is explained by
economies of scale in deploying larger vessels. In order to quantify
economies of scale, this paper uses the liner service cash flow model. A
novelty in the model is the inclusion of +6000-20-foot Equivalent Unit
(TEU) vessels and the distinction in costs between single and twin
propeller units on ships. The results illustrate that scale economies have
been -- and will continue to be -- the driving force behind the deployment
of larger container vessels. The paper then assesses the link between ship
size and operations, given current discussions about the increase in
container vessel scale. It is found that (a) ship size and operations are
linked; (b) optimal ship size depends on transport segment (deep-sea vs.
short-sea shipping, SSS), terminal type (transhipment terminals vs. other
terminals), trade lane (East-West vs. North-South trades) and technology;
and (c) a ship optimal for one trade can be suboptimal for another.
Journal: Transportation Planning and Technology
Pages: 435-463
Issue: 4
Volume: 31
Year: 2008
Month: 6
X-DOI: 10.1080/03081060802335109
File-URL: http://hdl.handle.net/10.1080/03081060802335109
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2008:i:4:p:435-463
Template-Type: ReDIF-Article 1.0
Author-Name: Rickard Bergqvist
Author-X-Name-First: Rickard
Author-X-Name-Last: Bergqvist
Author-Name: Jonas Tornberg
Author-X-Name-First: Jonas
Author-X-Name-Last: Tornberg
Title: Evaluating Locations for Intermodal Transport Terminals
Abstract:
Abstract The choice of location for an
intermodal transport terminal is an important component in a regional
logistics system and a paramount decision for the investor as well as the
community affected. The investor needs a realistic estimation of traffic
potentials and incorporated cost-estimates of a location, since it serves
as an important input to the investment decision process. Policy makers
need instruments and tools to analyse the effect of intermodal terminals
on the surrounding environment, which also enables a comparison between
several possible locations in order to ensure sustainability and long-term
competitiveness. The model in this paper allows a comparative evaluation
of a set of possible intermodal terminal locations based on considerations
by relevant actors. Furthermore, it presents a process of retrieving data
and effectively communicating results. Considerations and interests of
stakeholders are incorporated into the approach by means of evaluative
criteria. The approach aims at facilitating the planning process of
regional logistics systems in general and the evaluation process of
intermodal terminal locations in particular by considering both public and
private interests focusing on economic and environmental aspects.
Journal: Transportation Planning and Technology
Pages: 465-485
Issue: 4
Volume: 31
Year: 2008
Month: 3
X-DOI: 10.1080/03081060802335125
File-URL: http://hdl.handle.net/10.1080/03081060802335125
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2008:i:4:p:465-485
Template-Type: ReDIF-Article 1.0
Author-Name: Fedja T. Netjasov
Author-X-Name-First: Fedja T.
Author-X-Name-Last: Netjasov
Title: A Model of Air Traffic Assignment as a Measure for Mitigating Noise at Airports: The Zurich Airport Case
Abstract:
Abstract One of the biggest problems facing
modern airports is the noise generated by air traffic, and the impact of
that noise on those living nearby. Noise is an unavoidable consequence of
air traffic but it can be reduced in numerous ways, including technical
innovations in aircraft design and legislation. This paper presents a
model of air traffic assignment as a measure for mitigating noise from air
traffic at airports. The model is developed specifically for Zurich
Airport (one of the busiest airports in Europe) but could easily be
applied to other airports experiencing similar problems. The model is
based on the categorization of aircraft according to engine type and wake
turbulence category and the assignment of specific runways for take-off
and landing for each aircraft category. It incorporates two basic goals:
to increase airport capacity and to reduce the noise level in the
airport's surroundings. Although these goals are in apparent conflict, it
is shown in the Zurich Airport case that the model allows for reductions
in noise levels of, on average, 1 dB(A) with a traffic volume increase of
20%. The European Commission's (EC's) ‘long term noise
levels’ model is also presented and tested on the same airport
case. The results show that the air traffic assignment model produces
systematically higher values for noise reduction than the EC model.
However, some similarities of results are also apparent.
Journal: Transportation Planning and Technology
Pages: 487-508
Issue: 5
Volume: 31
Year: 2008
Month: 6
X-DOI: 10.1080/03081060802364448
File-URL: http://hdl.handle.net/10.1080/03081060802364448
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2008:i:5:p:487-508
Template-Type: ReDIF-Article 1.0
Author-Name: Laura Eboli
Author-X-Name-First: Laura
Author-X-Name-Last: Eboli
Author-Name: Gabriella Mazzulla
Author-X-Name-First: Gabriella
Author-X-Name-Last: Mazzulla
Title: A Stated Preference Experiment for Measuring Service Quality in Public Transport
Abstract:
Abstract This paper develops a Stated Preference
(SP) experiment that provides a way to measure service quality in public
transport. The paper introduces an empirical procedure for optimising the
SP experiment. This procedure permits the identification of the choice
alternatives defining the experiment by simulating the choices of a user
sample. By using the data collected from an experimental survey, a
Multinomial Logit model was calibrated. This model is a way of identifying
the importance of service quality attributes on global customer
satisfaction and calculating a Service Quality Index, which provides an
operationally appealing measure of current or potential service
effectiveness.
Journal: Transportation Planning and Technology
Pages: 509-523
Issue: 5
Volume: 31
Year: 2008
Month: 2
X-DOI: 10.1080/03081060802364471
File-URL: http://hdl.handle.net/10.1080/03081060802364471
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2008:i:5:p:509-523
Template-Type: ReDIF-Article 1.0
Author-Name: Zhaobin Liu
Author-X-Name-First: Zhaobin
Author-X-Name-Last: Liu
Author-Name: Satish Sharma
Author-X-Name-First: Satish
Author-X-Name-Last: Sharma
Author-Name: Sandeep Datla
Author-X-Name-First: Sandeep
Author-X-Name-Last: Datla
Title: Imputation of Missing Traffic Data during Holiday Periods
Abstract:
Abstract Highway and transportation agencies
implement large-scale traffic monitoring programs to fulfill the planning,
operation and management needs of highway systems. These monitoring
programs typically use inductive loops as detectors to collect traffic
data. Because of the harsh environment in which they operate, they are
highly prone to malfunctioning and providing erroneous or missing data. If
this occurs during holiday periods when the increase in highway traffic is
often substantial, there is a good chance that traffic peaking and
variation will be underestimated. This paper discusses the adaptability of
available imputation techniques for holiday traffic and then introduces a
new procedure using non-parametric regression -- the k-nearest neighbor
(k-NN) method. It is found that the performance of the k-NN method is
consistent and reasonable for different holidays and types of highway. In
addition, it is also concluded that the data requirements for this method
are flexible.
Journal: Transportation Planning and Technology
Pages: 525-544
Issue: 5
Volume: 31
Year: 2007
Month: 2
X-DOI: 10.1080/03081060802364505
File-URL: http://hdl.handle.net/10.1080/03081060802364505
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2007:i:5:p:525-544
Template-Type: ReDIF-Article 1.0
Author-Name: José Ángel González
Author-X-Name-First: José Ángel
Author-X-Name-Last: González
Author-Name: Eva Ponce
Author-X-Name-First: Eva
Author-X-Name-Last: Ponce
Author-Name: Carlos Mataix
Author-X-Name-First: Carlos
Author-X-Name-Last: Mataix
Author-Name: Javier Carrasco
Author-X-Name-First: Javier
Author-X-Name-Last: Carrasco
Title: The Automatic Generation of Transhipment Plans for a Train--Train Terminal: Application to the Spanish--French Border
Abstract:
Abstract The enormous potential of combined
transport (rail-road) makes rail the main alternative to the transport of
freight by road in the Europe. Unfortunately, the European railway network
is strongly fragmented, having different bottleneck points. This paper
presents research that centers on the transhipment tasks in the Port Bou
terminal. This terminal is a bottleneck point because of the different
track gauges of the Spanish and French railways. In order to optimize the
use of gantry cranes and the means available for train--train
transhipment, a linear programming model that allows for the automation of
container transhipment plans is proposed. An Analytic Decision Support
application is used to develop the model. As a result of this research it
can be concluded that the problem can be solved through linear programming
and the model proposed could be transferred both to other transhipment
terminals and to cargo terminals in general.
Journal: Transportation Planning and Technology
Pages: 545-567
Issue: 5
Volume: 31
Year: 2008
Month: 5
X-DOI: 10.1080/03081060802364539
File-URL: http://hdl.handle.net/10.1080/03081060802364539
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Handle: RePEc:taf:transp:v:31:y:2008:i:5:p:545-567
Template-Type: ReDIF-Article 1.0
Author-Name: Wen-Chen Lee
Author-X-Name-First: Wen-Chen
Author-X-Name-Last: Lee
Author-Name: Bor-Wen Cheng
Author-X-Name-First: Bor-Wen
Author-X-Name-Last: Cheng
Title: Incorporating e-Technology to Advantage in a Greener Taxi Industry and its Impact on Driving Performance and Safety
Abstract:
Abstract New technologies, especially advances
in telecommunications, have had profound impacts on everyday life and
brought even greater changes to some business models. Taxis represent one
of the major modes of transportation in urban areas but they face a number
of problems, including their environmental impacts. The status of the taxi
industry in Taiwan is revealed and analyzed in this study. A new business
model for the extensive and popular use of smart phones is proposed.
However, it is important to know whether their use is both effective and
safe. Two field experiments were executed to examine the effects on taxi
drivers of using a navigation system installed in a GPS PDA phone. The
results revealed that the efficiency of drivers using such a portable
navigation system was better than those relying on paper maps in
unfamiliar urban areas. Furthermore, performance in terms of safety was
also better than those who used an on-board navigation system. In summary,
incorporating e-technology can promote a taxi company's competitiveness
and a driver's performance and safety as well as offer environmental
benefits.
Journal: Transportation Planning and Technology
Pages: 569-588
Issue: 5
Volume: 31
Year: 2008
Month: 6
X-DOI: 10.1080/03081060802364554
File-URL: http://hdl.handle.net/10.1080/03081060802364554
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2008:i:5:p:569-588
Template-Type: ReDIF-Article 1.0
Author-Name: Sadayuki Yagi
Author-X-Name-First: Sadayuki
Author-X-Name-Last: Yagi
Author-Name: Abolfazl Mohammadian
Author-X-Name-First: Abolfazl
Author-X-Name-Last: Mohammadian
Title: Policy Simulation for New BRT and Area Pricing Alternatives Using an Opinion Survey in Jakarta
Abstract:
Abstract An area pricing scheme for Jakarta,
Indonesia, is currently under review as a transportation control measure
along with the operation of new bus rapid transit (BRT) system. While this
scheme may be effective for congestion reduction in the central business
district (CBD), provision of alternative means of transportation for auto
users that are ‘pushed-out’ is of great importance to obtain
public acceptance. Hence, it is necessary to simulate simultaneously the
area pricing scheme and the BRT development which may serve as an
alternative for assumed ‘pushed-out’ auto users. Utilizing
data from an opinion survey, this paper studies how BRT and auto ridership
are likely to vary as a function of traveler and system attributes.
Additionally, the study attempts to evaluate the way this new travel mode
is distinguished from other existing conventional transportation
alternatives in Jakarta. The survey data contains socioeconomic
information of over 1000 respondents as well as details of to-work/school
trips to the CBD including mode, travel cost, time, etc. Respondents were
asked about their willingness to shift from their current mode to BRT to
make the same travel for different BRT fare levels. Modeling efforts
suggest that a mixed logit model performs better in explaining choice
behavior. Therefore, this model was used for policy simulation. The
simulation results brought about many implications as to the tested
policies. While the developed models may be applied only to future BRT
corridors in which the survey was conducted, they capture the key
variables that are significant in explaining mode choice behavior and
present great potential for practical use in policy simulation and
analysis in a large metropolitan area of the developing world.
Journal: Transportation Planning and Technology
Pages: 589-612
Issue: 5
Volume: 31
Year: 2007
Month: 9
X-DOI: 10.1080/03081060802087676
File-URL: http://hdl.handle.net/10.1080/03081060802087676
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2007:i:5:p:589-612
Template-Type: ReDIF-Article 1.0
Author-Name: Tung-Kuan Liu
Author-X-Name-First: Tung-Kuan
Author-X-Name-Last: Liu
Author-Name: Chi-Ruey Jeng
Author-X-Name-First: Chi-Ruey
Author-X-Name-Last: Jeng
Author-Name: Yu-Hern Chang
Author-X-Name-First: Yu-Hern
Author-X-Name-Last: Chang
Title: Disruption Management of an Inequality-Based Multi-Fleet Airline Schedule by a Multi-Objective Genetic Algorithm
Abstract:
Abstract This paper presents a novel application
of a Method of Inequality-based Multi-objective Genetic Algorithm (MMGA)
to generate an efficient time-effective multi-fleet aircraft routing
algorithm in response to the schedule disruption of short-haul flights. It
attempts to optimize objective functions involving ground turn-around
times, flight connections, flight swaps, total flight delay time and a
30-minute maximum delay time of original schedules. The MMGA approach,
which combines a traditional Genetic Algorithm (GA) with a multi-objective
optimization method, can address multiple objectives at the same time,
then explore the optimal solution. The airline schedule disruption
management problem is traditionally solved by Operations Research (OR)
techniques that always require a precise mathematical model. However,
airline operations involve too many factors that must be considered
dynamically, making a precise mathematical model difficult to define.
Experimental results based on a real airline flight schedule demonstrate
that the proposed method, Multi-objective Optimization Airline Disruption
Management by GA, can recover the perturbation efficiently within a very
short time. Our results further demonstrate that the application can yield
high quality solutions quickly and, consequently, has potential to be
employed as a real-time decision support tool for practical complex
airline operations.
Journal: Transportation Planning and Technology
Pages: 613-639
Issue: 6
Volume: 31
Year: 2008
Month: 9
X-DOI: 10.1080/03081060802492652
File-URL: http://hdl.handle.net/10.1080/03081060802492652
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2008:i:6:p:613-639
Template-Type: ReDIF-Article 1.0
Author-Name: Tom Rye
Author-X-Name-First: Tom
Author-X-Name-Last: Rye
Author-Name: Martin Gaunt
Author-X-Name-First: Martin
Author-X-Name-Last: Gaunt
Author-Name: Stephen Ison
Author-X-Name-First: Stephen
Author-X-Name-Last: Ison
Title: Edinburgh's Congestion Charging Plans: An Analysis of Reasons for Non-Implementation
Abstract:
Abstract The City of Edinburgh in Scotland in
the UK had advanced plans for a congestion charging scheme until 25
February 2005. However, these plans were abandoned at that time after a
referendum that resulted in a ‘no vote’. This paper explains
the origins of the scheme, outlines its nature, extent, charging
technology and predicted effect; it also analyses the difficulties that
exist when attempting to plan and implement such a scheme in a particular
governance context, and when there is little unanimity of public opinion
about the need for a scheme. As well as the primary documentation from the
proposals (e.g. public inquiry submissions, papers to government), the
paper also draws upon a series of face-to-face interviews that were
undertaken with key stakeholders. It also provides an analysis of press
coverage in the local (Edinburgh) and national (Scottish) newspapers in
the run-up to the referendum. These sources explain both the systemic and
more local barriers to the scheme's implementation. The paper draws key
lessons which are important for authorities considering the implementation
of a road user charging scheme, by suggesting how legislative and
governance barriers to implementation can be reduced. The lessons are of
relevance world wide.
Journal: Transportation Planning and Technology
Pages: 641-661
Issue: 6
Volume: 31
Year: 2008
Month: 3
X-DOI: 10.1080/03081060802492686
File-URL: http://hdl.handle.net/10.1080/03081060802492686
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2008:i:6:p:641-661
Template-Type: ReDIF-Article 1.0
Author-Name: Jin-Ru Yen
Author-X-Name-First: Jin-Ru
Author-X-Name-Last: Yen
Author-Name: Jing-Cing Chen
Author-X-Name-First: Jing-Cing
Author-X-Name-Last: Chen
Author-Name: Dong-Hua Wang
Author-X-Name-First: Dong-Hua
Author-X-Name-Last: Wang
Title: The Change in Structure of Taiwan's Domestic Air Market before and after Deregulation
Abstract:
Abstract Abstract This paper investigates the
influences of deregulation on Taiwan's domestic air market, which took
place in 1987. The Herfindahl-Hirschman Index, the number of effective
competitors, and the concentration ratio of a defined market are used to
measure the associated market structure. The market structures of three
selected flight routes and the entire domestic air market of Taiwan are
analysed using a time-series data set spanning 21 years. Research results
indicate that the market structure indicators of all defined markets were
volatile after deregulation and then became stable again, with the recent
market competition being greater than it was before. This reveals that
market competition increased due to deregulation -- in both the entire
market and the markets of specific flight routes. While the domestic air
market of Taiwan is unique -- with relatively short flight times and fewer
numbers of airlines in the market as compared with markets that are
investigated in the literature using the same indicators -- the results
are promising in that those indices capture the variation of Taiwan's
domestic air market due to the implementation of the deregulation policy.
It implies that those measures are also suitable for markets with a
relatively low degree of competition or which are relatively small scale.
Journal: Transportation Planning and Technology
Pages: 663-679
Issue: 6
Volume: 31
Year: 2008
Month: 9
X-DOI: 10.1080/03081060802492694
File-URL: http://hdl.handle.net/10.1080/03081060802492694
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2008:i:6:p:663-679
Template-Type: ReDIF-Article 1.0
Author-Name: Alan Hoback
Author-X-Name-First: Alan
Author-X-Name-Last: Hoback
Author-Name: Scott Anderson
Author-X-Name-First: Scott
Author-X-Name-Last: Anderson
Author-Name: Utpal Dutta
Author-X-Name-First: Utpal
Author-X-Name-Last: Dutta
Title: True Walking Distance to Transit
Abstract:
Abstract People riding transit in the city of
Detroit walk on average 0.8 miles (1.3 km) per round trip. The
straight-line walking distance was found by buffering the bus stop
locations and comparing them to the weighted US Census blocks. However,
the true walking path follows the street pattern. Rather than undertaking
network analysis, which would require connecting all addresses in the city
with all bus stops, a Monte Carlo simulation was performed in geographic
information system with random addresses. The simulation was performed
over several addresses until convergence was achieved. The distances were
converted to walking times and compared to the US National Household
Transportation Survey.
Journal: Transportation Planning and Technology
Pages: 681-692
Issue: 6
Volume: 31
Year: 2008
Month: 9
X-DOI: 10.1080/03081060802492785
File-URL: http://hdl.handle.net/10.1080/03081060802492785
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:31:y:2008:i:6:p:681-692
Template-Type: ReDIF-Article 1.0
Author-Name: Sönke Behrends
Author-X-Name-First: Sönke
Author-X-Name-Last: Behrends
Author-Name: Maria Lindholm
Author-X-Name-First: Maria
Author-X-Name-Last: Lindholm
Author-Name: Johan Woxenius
Author-X-Name-First: Johan
Author-X-Name-Last: Woxenius
Title: The Impact of Urban Freight Transport: A Definition of Sustainability from an Actor's Perspective
Abstract:
Abstract This paper presents a definition of
sustainable urban freight transport (SUFT), based on the existing theories
and concepts, and develops an indicator set that describes SUFT. The
definition of SUFT makes a categorisation of actions possible which
enables actors to select effective strategies towards SUFT. The indicator
set consists of two levels: impact indicators -- which describe how the
urban freight transport violates the principles of sustainability; and
performance indicators -- which describe different categories determining
the characteristics and performance of the urban transport system. A
literature study analyses the characteristics determining the performance
of actors in the urban freight transport chain. Knowing the current state
and improvement potential of the urban freight transport system are
prerequisites for defining successful strategies and implementing
effective actions.
Journal: Transportation Planning and Technology
Pages: 693-713
Issue: 6
Volume: 31
Year: 2008
Month: 9
X-DOI: 10.1080/03081060802493247
File-URL: http://hdl.handle.net/10.1080/03081060802493247
File-Format: text/html
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Handle: RePEc:taf:transp:v:31:y:2008:i:6:p:693-713
Template-Type: ReDIF-Article 1.0
Author-Name: Louis de Grange
Author-X-Name-First: Louis de
Author-X-Name-Last: Grange
Author-Name: Juan Carlos Muñoz
Author-X-Name-First: Juan Carlos
Author-X-Name-Last: Muñoz
Title: An equivalent optimization formulation for the traffic assignment problem with asymmetric linear costs
Abstract:
Abstract In this paper, we present a general
formulation for the deterministic traffic assignment problem, using an
equivalent optimization problem applicable to the case of asymmetric
linear cost functions. We present a resolution approach for this problem
in such a way that in equilibrium Wardrop's first principle or Nash
equilibrium is satisfied. We conclude that many deterministic traffic
assignment problems with asymmetric linear costs can be formulated as an
optimization problem whose objective is defined by a line integral, and
whose constraints correspond to non-negativity and flows conservation. By
adequately defining the integration path, it is feasible to resolve the
problem, obtaining Wardrop's equilibrium. This approach can be applied in
other economic contexts, including microeconomic theory and consumer
surplus analysis.
Journal: Transportation Planning and Technology
Pages: 1-25
Issue: 1
Volume: 32
Year: 2007
Month: 3
X-DOI: 10.1080/03081060902750579
File-URL: http://hdl.handle.net/10.1080/03081060902750579
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2007:i:1:p:1-25
Template-Type: ReDIF-Article 1.0
Author-Name: Justin S. Chang
Author-X-Name-First: Justin S.
Author-X-Name-Last: Chang
Title: A demonstrative application of the bid-rent network equilibrium model
Abstract:
Abstract The bid-rent network equilibrium model
represents the relationship between transport and the location of
activities. A systematic application of the model to a real network is
examined in this paper. The objective of this case study is to demonstrate
the ability of the model to address the two-way relationship. A base run
and two policy runs are simulated. The base run shows a numerical test
conducted using survey data. The policy runs involve the introduction of a
congestion charge and the release of land for housing development.
Class-specific spatial behavior is obtained. This behavior is explained
using network performance indices of transport impedance and locational
attractiveness. Some conclusions and suggestions are also presented.
Journal: Transportation Planning and Technology
Pages: 27-57
Issue: 1
Volume: 32
Year: 2007
Month: 5
X-DOI: 10.1080/03081060902750603
File-URL: http://hdl.handle.net/10.1080/03081060902750603
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2007:i:1:p:27-57
Template-Type: ReDIF-Article 1.0
Author-Name: Chansung Kim
Author-X-Name-First: Chansung
Author-X-Name-Last: Kim
Author-Name: Chang Gyu Choi
Author-X-Name-First: Chang Gyu
Author-X-Name-Last: Choi
Author-Name: Seongkil Cho
Author-X-Name-First: Seongkil
Author-X-Name-Last: Cho
Author-Name: Daehyon Kim
Author-X-Name-First: Daehyon
Author-X-Name-Last: Kim
Title: A comparative study of aggregate and disaggregate gravity models using Seoul metropolitan subway trip data
Abstract:
Abstract Existing origin constrained and doubly
constrained gravity models have not been compared, theoretically or
empirically, in terms of their forecasting power. Due to the newly
advanced technology of intelligent transport systems, the expanded data
presently available have made various models more comparable in terms of
forecasting power. This paper uses archived automatic passenger counting
(APC) data for urban rail in the Seoul metropolitan area. The APC data
contains information about each trip's origin, destination, ticket type,
fare, and distance on a daily basis. The objective of this paper is to
compare the goodness-of-fit of aggregate and disaggregate gravity modeling
using these data. A Hyman aggregate gravity model is used as the aggregate
model without the spatial effect. The disaggregate model adopts a
multinomial logit as the destination choice model with the spatial effect.
In general, while the formulation of aggregate and disaggregate gravity
model models are similar, the calibration and parameter estimation methods
of the two models are different. As a result, this empirical study
demonstrates that the variation in goodness-of-fit and forecasting power
largely depends on the estimation method and selected variables. The
forecasting power of the disaggregate modeling approach outperforms that
of the aggregate model. This paper further confirms that spatial
arrangement plays important roles in gravity modeling.
Journal: Transportation Planning and Technology
Pages: 59-70
Issue: 1
Volume: 32
Year: 2008
Month: 1
X-DOI: 10.1080/03081060902750652
File-URL: http://hdl.handle.net/10.1080/03081060902750652
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2008:i:1:p:59-70
Template-Type: ReDIF-Article 1.0
Author-Name: Yaser E. Hawas
Author-X-Name-First: Yaser E.
Author-X-Name-Last: Hawas
Author-Name: Mutahar Abdel Hameed
Author-X-Name-First: Mutahar Abdel
Author-X-Name-Last: Hameed
Title: A multi-stage procedure for validating microscopic traffic simulation models
Abstract:
Abstract Validating microscopic traffic
simulation models incorporates several challenges because of the
inadequacy and rareness of validation data, and the complexity of the car
following and lane-changing processes. In addition, validation data were
usually measured in aggregate form at the link level and not at the level
of the individual vehicle. The majority of model validation attempts in
the literature use average link measurements of traffic characteristics.
However, validation techniques based on averages of traffic variables have
several limitations including possible inconsistency between the field
observed and simulation-estimated variables, and as such the resulting
spatial--temporal traffic stream patterns. Due to these inconsistencies,
this paper introduces a novel approach to the validation of microscopic
traffic simulation models. A three-stage procedure for validating
microscopic simulation models is presented. The paper describes the field
measurements, experimental setup, and the simulation-based analysis of the
three stages. The purpose of the first stage is to validate a benchmark
simulator (NETSIM) using limited field data. The second stage examines the
spatial--temporal traffic patterns extracted from the benchmark simulator
versus those extracted from the simulation model to be validated
(I-SIM-S). Different traffic patterns were examined accounting for various
factors, such as traffic flow, link speeds, and signal timing. The third
stage compares the aggregate traffic measures extracted from the subject
simulator against those extracted from the benchmark simulator.
Journal: Transportation Planning and Technology
Pages: 71-91
Issue: 1
Volume: 32
Year: 2008
Month: 1
X-DOI: 10.1080/03081060902750686
File-URL: http://hdl.handle.net/10.1080/03081060902750686
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2008:i:1:p:71-91
Template-Type: ReDIF-Article 1.0
Author-Name: Serkan Tapkın
Author-X-Name-First: Serkan
Author-X-Name-Last: Tapkın
Author-Name: Özdemir Akyılmaz
Author-X-Name-First: Özdemir
Author-X-Name-Last: Akyılmaz
Title: A new approach to neural trip distribution models: NETDIM
Abstract:
Abstract This paper develops and presents a new
neural network approach to model trip distribution, which is one of the
important phases of conventional four-step travel demand modelling. The
trip distribution problem has been investigated using back-propagation
artificial neural networks in a number of studies and it was concluded
that back-propagation artificial neural networks underperform when
compared to traditional models. Such underperformance is due to the
thresholding of the linearly combined inputs by utilising a non-linear
function and carrying out this operation both in hidden and output layers.
The proposed neural trip distribution model does not threshold the
linearly combined outputs from the hidden layer. This makes it different
from back-propagation artificial neural networks where combined inputs
from the hidden layer are activated once more in the output layer. In
addition, the neuron in the output layer is used as a summation unit in
contrast to the methodologies cited in the neural network applications
literature. At the same time, the bias neuron is not connected to the
output neuron in the output layer. When this model is compared with
various approaches such as the gravity model, modular neural networks and
back-propagation neural networks, it was concluded that this new model
provides better prediction of trip distribution and therefore, outperforms
all the existing approaches.
Journal: Transportation Planning and Technology
Pages: 93-114
Issue: 1
Volume: 32
Year: 2008
Month: 4
X-DOI: 10.1080/03081060902750710
File-URL: http://hdl.handle.net/10.1080/03081060902750710
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2008:i:1:p:93-114
Template-Type: ReDIF-Article 1.0
Author-Name: Kees Maat
Author-X-Name-First: Kees
Author-X-Name-Last: Maat
Author-Name: Harry J.P. Timmermans
Author-X-Name-First: Harry J.P.
Author-X-Name-Last: Timmermans
Title: A causal model relating urban form with daily travel distance through activity/travel decisions
Abstract:
Abstract Urban form is often assumed to
influence travel distance. However, as this is no travel choice in itself,
but the consequence of other decisions, this paper tests, consistent with
the activity-based approach, a causal model that does not relate urban
form directly with daily travel distance, but indirectly through a series
of decisions. A structural equation model was developed with urban form
measures for both the residential and the work environment. The model
demonstrates that indirect effects can steer a total effect in another
direction, indicating that the apparent effects of one variable on another
can be the trade-off of opposite effects. Effects from residential density
suggest that people in a dense residential environment travel a little
less, although this effect is partly cancelled out by extra activities.
Workplace density/mix increases total daily distances, but decreases
distances by car.
Journal: Transportation Planning and Technology
Pages: 115-134
Issue: 2
Volume: 32
Year: 2009
Month: 3
X-DOI: 10.1080/03081060902861285
File-URL: http://hdl.handle.net/10.1080/03081060902861285
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:2:p:115-134
Template-Type: ReDIF-Article 1.0
Author-Name: Ioannis Minis
Author-X-Name-First: Ioannis
Author-X-Name-Last: Minis
Author-Name: Jason Angelopoulos
Author-X-Name-First: Jason
Author-X-Name-Last: Angelopoulos
Author-Name: Gethsimani Kyrioglou
Author-X-Name-First: Gethsimani
Author-X-Name-Last: Kyrioglou
Title: Car fleet planning and management models for large event transport: the Athens 2004 Olympic Games
Abstract:
Abstract This paper discusses important design
aspects of the ‘taxi-like’ car fleet system used to
transport VIPs during the Athens 2004 Olympic Games. This system included
more than 600 vehicles, two large depots, a call center, 1300 drivers and
more than 100 management staff, and provided 24-hour service to
approximately 3500 clients during the 15-day period of the Games. Three
aspects of the system design played a critical role in the system's
success: the development of robust operating principles, the accurate
planning of resources, and the design of an effective management
structure. The methods used in these three areas are presented, and the
system design is evaluated by measurements collected during operation. The
issues presented in this paper are relevant to the design and management
of car fleet transport systems for large events.
Journal: Transportation Planning and Technology
Pages: 135-161
Issue: 2
Volume: 32
Year: 2009
Month: 3
X-DOI: 10.1080/03081060902861319
File-URL: http://hdl.handle.net/10.1080/03081060902861319
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:2:p:135-161
Template-Type: ReDIF-Article 1.0
Author-Name: Jin-Hyuk Chung
Author-X-Name-First: Jin-Hyuk
Author-X-Name-Last: Chung
Author-Name: Taewan Kim
Author-X-Name-First: Taewan
Author-X-Name-Last: Kim
Author-Name: Hojong Baik
Author-X-Name-First: Hojong
Author-X-Name-Last: Baik
Author-Name: Yun-Sook Choi
Author-X-Name-First: Yun-Sook
Author-X-Name-Last: Choi
Title: A structural equation model of activity participation and travel behavior using longitudinal data
Abstract:
Abstract This paper presents a dynamic
structural equation model (SEM) that explicitly addresses complicated
causal relationships among socio-demographics, activity participation, and
travel behavior. The model assumes that activity participation and travel
patterns in the current year are affected by those in previous years.
Using the longitudinal dataset collected from Puget sound transportation
panel ‘wave 3’ and ‘wave 4,’ these assumptions
are tested with suggested SEMs. Within each wave, the model is structured
to have a three-level causal relationship that describes interactions
among endogenous variables under time-budget constraints. The resulting
coefficients representing the activity durations indicate that people tend
to allocate their time according to the importance and the obligation of
the activity level. Results from the dynamic SEM confirm the fact that
people's current activity and travel behavior do have effects on those in
the future. The resulting model also shows that activity participation and
travel behavior in ‘wave 3’ are closely related to those in
‘wave 4.’ These explicit explanations of relationships among
variables could provide important perspectives in the activity-based
approach which becomes recognized as a better analytical tool for the
transportation planning and policy making process.
Journal: Transportation Planning and Technology
Pages: 163-185
Issue: 2
Volume: 32
Year: 2007
Month: 8
X-DOI: 10.1080/03081060902861392
File-URL: http://hdl.handle.net/10.1080/03081060902861392
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2007:i:2:p:163-185
Template-Type: ReDIF-Article 1.0
Author-Name: Yavuz Duvarci
Author-X-Name-First: Yavuz
Author-X-Name-Last: Duvarci
Author-Name: Shoshi Mizokami
Author-X-Name-First: Shoshi
Author-X-Name-Last: Mizokami
Title: A suppressed demand analysis method of the transportation disadvantaged in policy making
Abstract:
Abstract This paper proposes a method for
estimating transportation supply requirements when the suppressed demand
of the transportation disadvantaged (TD) can be calculated and added to
existing demand for travel. The underlying assumption is that the travel
conditions of these TD groups must be equal to the
‘conventional’ demand, known as ‘full
release’. Utilising the modelling approach for TD, suppressed
demand analysis, diagnosis of difficulties and equity between conventional
and disadvantaged groups were realised, while elaborating special cases
for the most vulnerable TD groups (such as elderly and disabled persons)
and simultaneously identifying areas of difficulty. From the early virtual
results, it is concluded that, for the full release of suppressed trips
(only a 5% increase), policy makers must be ready to face some financial
burdens, requiring coordination of effort to both standardise these TD
groups and reduce the costs incurred by operators.
Journal: Transportation Planning and Technology
Pages: 187-214
Issue: 2
Volume: 32
Year: 2007
Month: 9
X-DOI: 10.1080/03081060902861400
File-URL: http://hdl.handle.net/10.1080/03081060902861400
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2007:i:2:p:187-214
Template-Type: ReDIF-Article 1.0
Author-Name: Hualing Ren
Author-X-Name-First: Hualing
Author-X-Name-Last: Ren
Author-Name: Ziyou Gao
Author-X-Name-First: Ziyou
Author-X-Name-Last: Gao
Author-Name: William H.K. Lam
Author-X-Name-First: William H.K.
Author-X-Name-Last: Lam
Author-Name: Jiancheng Long
Author-X-Name-First: Jiancheng
Author-X-Name-Last: Long
Title: Assessing the benefits of integrated en-route transit information systems and time-varying transit pricing systems in a congested transit network
Abstract:
Abstract This paper proposes a model for
assessing the effects of the integrated implementation of en-route transit
information systems (ETIS) and time-varying transit pricing systems
(TTPS). The proposed model reveals the interaction between ETIS and TTPS,
and the potential benefit of the joint implementation. There are two
classes of passengers: those equipped and those unequipped with ETIS. It
is assumed that unequipped passengers make their travel choices according
to stochastic dynamic user optimal principles, with equipped passengers
having a lower perception variation of travel cost due to the availability
of better information. A bi-level program is formulated to model the
integrated effects on passengers’ departure time choice behavior,
route choice behavior, transit network performance, and transit
operators’ revenue. The lower level is a multi-class stochastic
dynamic transit assignment model. The combined system total cost and
operators’ benefits under varied transit conditions are
investigated with a numerical example.
Journal: Transportation Planning and Technology
Pages: 215-237
Issue: 3
Volume: 32
Year: 2009
Month: 4
X-DOI: 10.1080/03081060903017077
File-URL: http://hdl.handle.net/10.1080/03081060903017077
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:3:p:215-237
Template-Type: ReDIF-Article 1.0
Author-Name: H-S. Jacob Tsao
Author-X-Name-First: H-S. Jacob
Author-X-Name-Last: Tsao
Author-Name: Wenbin Wei
Author-X-Name-First: Wenbin
Author-X-Name-Last: Wei
Author-Name: Agus Pratama
Author-X-Name-First: Agus
Author-X-Name-Last: Pratama
Title: Operational feasibility of one-dedicated-lane bus rapid transit/light rail systems
Abstract:
Abstract This paper proposes the concept of a
bus rapid transit (BRT) or light rail system that effectively requires
only one dedicated but reversible lane to support two-way traffic in the
median of a busy commute corridor with regular provision of left-turn
lanes. Traffic crossing is accommodated on the otherwise unused or
underused median space resulting from provision of left-turn lanes.
Conceptual design options and geometric-configuration sketches for bus
stops and crossing spaces are provided. System performance in terms of
travel speed, headway operations, distance between two neighboring
crossing spaces, and number of crossing spaces is also analyzed. To ensure
practicality, we study implementation of such a system on an existing
corridor. Such a system is also useful as an intermediate step toward a
two-dedicated-lane system because of its potential for facilitating
transit-oriented development.
Journal: Transportation Planning and Technology
Pages: 239-260
Issue: 3
Volume: 32
Year: 2009
Month: 4
X-DOI: 10.1080/03081060903017085
File-URL: http://hdl.handle.net/10.1080/03081060903017085
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:3:p:239-260
Template-Type: ReDIF-Article 1.0
Author-Name: Jin-Su Mun
Author-X-Name-First: Jin-Su
Author-X-Name-Last: Mun
Title: Some features of non-linear travel time models for dynamic traffic assignment
Abstract:
Abstract This paper investigates some features
of non-linear travel time models for dynamic traffic assignment (DTA) that
adopt traffic on the link as the sole determinant for the calculation of
travel time and have explicit relationships between travel time and
traffic on the link. Analytical proofs and numerical examples are provided
to show first-in-first-out (FIFO) violation and the behaviour of
decreasing outflow with increasing traffic in non-linear travel time
models. It is analytically shown that any non-linear travel time model
could violate FIFO in some circumstances, especially when inflow drops
sharply, and some convex non-linear travel time models could show
behaviour with outflow decreasing as traffic increases. It is also shown
that the linear travel time model does not show these behaviours. A
non-linear travel time model in general form was used for analytical
proofs and several existing non-linear travel time models were adopted for
numerical examples. Considering the features addressed in this study,
non-linear travel time models seem to have limitations for use in DTA in
practical terms and care should be taken when they are used for modelling
time-varying transportation networks.
Journal: Transportation Planning and Technology
Pages: 261-288
Issue: 3
Volume: 32
Year: 2009
Month: 4
X-DOI: 10.1080/03081060903017119
File-URL: http://hdl.handle.net/10.1080/03081060903017119
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:3:p:261-288
Template-Type: ReDIF-Article 1.0
Author-Name: Ching-Hui Tang
Author-X-Name-First: Ching-Hui
Author-X-Name-Last: Tang
Author-Name: Shangyao Yan
Author-X-Name-First: Shangyao
Author-X-Name-Last: Yan
Author-Name: Chia-Wei Chang
Author-X-Name-First: Chia-Wei
Author-X-Name-Last: Chang
Title: Short-term work team scheduling models for effective road repair and management
Abstract:
Abstract In this study, we focus on the
development of work team routing/scheduling models incorporating
stochastic travel and repair times. Robust and expected optimization
concepts, combined with a time--space network technique, are used to
develop the models. We perform numerical tests based on operational data
for Taoyuan County in Taiwan. The test results show the good performance
of the models.
Journal: Transportation Planning and Technology
Pages: 289-311
Issue: 3
Volume: 32
Year: 2009
Month: 4
X-DOI: 10.1080/03081060903017150
File-URL: http://hdl.handle.net/10.1080/03081060903017150
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:3:p:289-311
Template-Type: ReDIF-Article 1.0
Author-Name: Nam Seok Kim
Author-X-Name-First: Nam Seok
Author-X-Name-Last: Kim
Author-Name: Bert Van Wee
Author-X-Name-First: Bert
Author-X-Name-Last: Van Wee
Title: Assessment of CO2 emissions for truck-only and rail-based intermodal freight systems in Europe
Abstract:
Abstract Rail-based intermodal freight
transportation systems in the European Union have been regarded as being
more environmental friendly than truck-only freight systems, particularly
for long-distance haulage and in terms of CO2 emissions.
However, to date there has been no clear comparison of CO2
emissions between different freight systems. Therefore, this paper
examines whether the intermodal freight system really does emit less
CO2 than their road-based counterparts. A research framework is
established in which the methods and data of earlier studies are assessed.
Based on a conceptualisation of intermodal and truck-only systems, the
semi-life cycle assessment technique, which excludes emissions from
infrastructure and vehicle manufacturing and includes emissions from the
production of fuel and direct emissions, is used in order to examine the
short- and medium-term environmental impact of different freight systems.
The main conclusion is that in general rail-based intermodal freight
systems emit less CO2 than truck-only systems, regardless of
the type of locomotive. For electric locomotives, the electricity
power-generating source is the definitive factor in deciding which type of
train in an intermodal freight system offers the most environmental
friendly alternative: if power plants use only coal or oil fuel sources,
intermodal systems using electric trains could emit more CO2
than their competitors.
Journal: Transportation Planning and Technology
Pages: 313-333
Issue: 4
Volume: 32
Year: 2009
Month: 6
X-DOI: 10.1080/03081060903119584
File-URL: http://hdl.handle.net/10.1080/03081060903119584
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:4:p:313-333
Template-Type: ReDIF-Article 1.0
Author-Name: Hugo Priemus
Author-X-Name-First: Hugo
Author-X-Name-Last: Priemus
Title: Do Design & Construct contracts for infrastructure projects stimulate innovation? The case of the Dutch high speed railway
Abstract:
Abstract The key question addressed in this
paper is: do Design & Construct (D&C) contracts for infrastructure
projects stimulate innovation? Following an overview of the goals and
background for adopting D&C contracts, a case study is presented: the
tendering procedure for the High Speed Railway link between Amsterdam and
the Belgian--Dutch border. There was a Design & Build, Finance & Maintain
contracting procedure for the superstructure (infraprovider; 25 years), a
contracting procedure for the transport services (15 years) and a D&C
contracting procedure for five segments of the substructure (mainly civil
engineering). In particular the experiences of the D&C contract for the
substructure have been documented in a recent report by the Dutch
Parliamentary Commission on Infrastructure Projects and in this paper. The
conclusion overall is that everything that could go wrong, went wrong.
These failures are demonstrated and explained. A number of lessons can be
learned, both for the Netherlands and the international community.
Conditions for a proper D&C approach are formulated. Only when these
conditions are met can D&C improve the price--quality ratio of
infrastructure projects and boost dynamics and innovation in the
construction industry.
Journal: Transportation Planning and Technology
Pages: 335-353
Issue: 4
Volume: 32
Year: 2009
Month: 6
X-DOI: 10.1080/03081060903119592
File-URL: http://hdl.handle.net/10.1080/03081060903119592
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:4:p:335-353
Template-Type: ReDIF-Article 1.0
Author-Name: Robert M. Arthur
Author-X-Name-First: Robert M.
Author-X-Name-Last: Arthur
Title: Using social theory and GIS to create a safer road environment: a new attitude
Abstract:
Abstract This paper presents the hypothesis that
in order to create a safer road environment, there needs to be a change in
the approach used by police services. A shift in methodology is required
that moves away from punishment, such as issuing traffic tickets, and its
attendant measures of success, total number of tickets issued or total
amount of fines, to a safety-based methodology with its main emphasis on
reducing collisions and their severity. This requires understanding the
social context of driving and how dangerous driving is defined. This paper
moves from these topics to describing deterrence theory which is the
common philosophy underlying the criminal justice system today, including
how the police handle traffic violations. A different approach is then
presented which draws from these methods but changes the focus of police
resource deployment.
Journal: Transportation Planning and Technology
Pages: 355-375
Issue: 4
Volume: 32
Year: 2009
Month: 6
X-DOI: 10.1080/03081060903119600
File-URL: http://hdl.handle.net/10.1080/03081060903119600
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:32:y:2009:i:4:p:355-375
Template-Type: ReDIF-Article 1.0
Author-Name: Marco Diana
Author-X-Name-First: Marco
Author-X-Name-Last: Diana
Author-Name: Luca Quadrifoglio
Author-X-Name-First: Luca
Author-X-Name-Last: Quadrifoglio
Author-Name: Cristina Pronello
Author-X-Name-First: Cristina
Author-X-Name-Last: Pronello
Title: A methodology for comparing distances traveled by performance-equivalent fixed-route and demand responsive transit services
Abstract:
Abstract Public transport systems are confronted
by the need to improve their economic effectiveness in order to meet
customer requirements at acceptable costs for transit providers, which are
often heavily subsidized. Our goal is to understand how the organizational
form of the transit system impacts on system productivity. Our methodology
consists of comparing performance in terms of distance traveled of two
competing transit services, a traditional fixed-route and a demand
responsive service, while ensuring a comparable service to the same set of
customers. We consider several scenarios, which depend on the road
network, service quality level, and demand density. According to our
findings, demand responsive transit services perform better for
high-quality service levels and low demand density scenarios.
Journal: Transportation Planning and Technology
Pages: 377-399
Issue: 4
Volume: 32
Year: 2009
Month: 6
X-DOI: 10.1080/03081060903119618
File-URL: http://hdl.handle.net/10.1080/03081060903119618
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:4:p:377-399
Template-Type: ReDIF-Article 1.0
Author-Name: Harry Geerlings
Author-X-Name-First: Harry
Author-X-Name-Last: Geerlings
Author-Name: Jasper Lohuis
Author-X-Name-First: Jasper
Author-X-Name-Last: Lohuis
Author-Name: Bart Wiegmans
Author-X-Name-First: Bart
Author-X-Name-Last: Wiegmans
Author-Name: Arnoud Willemsen
Author-X-Name-First: Arnoud
Author-X-Name-Last: Willemsen
Title: A renaissance in understanding technology dynamics? The emerging concept of transition management in transportation
Abstract:
Abstract For the last five years the technology factor (by
which is meant both process and product innovation) has received renewed
attention in the transport sector as society is confronted with new
challenges. This leads to a call for change and transitions. Technology is
considered as a potential answer to new needs and new problems, like the
reduction of CO2 and the supply of alternative energy. It is
important that there is a theoretical basis for the way of thinking on
innovation and diffusion when it comes to technology dynamics. This paper,
based on a literature study, addresses the question to what extent the
theory of transition management can be considered as a new application of
technology dynamics. The theory of technological innovations in the broad
sense is analysed and applied to the transport sector.
Journal: Transportation Planning and Technology
Pages: 401-422
Issue: 5
Volume: 32
Year: 2009
Month: 8
X-DOI: 10.1080/03081060903257046
File-URL: http://hdl.handle.net/10.1080/03081060903257046
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:32:y:2009:i:5:p:401-422
Template-Type: ReDIF-Article 1.0
Author-Name: Ming Zhong
Author-X-Name-First: Ming
Author-X-Name-Last: Zhong
Author-Name: Brody L. Hanson
Author-X-Name-First: Brody L.
Author-X-Name-Last: Hanson
Title: GIS-based travel demand modeling for estimating traffic on low-class roads
Abstract:
Abstract Traffic count data are useful for many purposes,
but often not available for significant portions of road networks. It
would be prohibitive to cover all roads with traditional sensor-based
traffic monitoring system, particularly for rural, low-class roads. In
cases where traffic volumes are needed but unavailable, travel demand
models (TDMs) can be used to estimate such information. A literature
review indicates that research work for estimating traffic volumes for
low-class roads using TDM is scarce. The majority of previous research
used traffic count data-based regressions. The problem of such an approach
is that it relies on available traffic counts to develop, calibrate, and
validate regression models. Nevertheless, few or no traffic counts are
collected on low-class roads, and therefore make it inapplicable. This
study implements TDMs for two regions in the province of New Brunswick,
Canada to estimate traffic volumes for low-class roads. Geographical
Information System-based TDMs using census data and Institute of
Transportation Engineers (ITE) Quick Response Method produce forecasted
traffic for a significant portion of road network previously without any
traffic information and limit the average estimation errors for low-class
roads to less than 40%. Available traffic data were increased by 45% in
York County and 144% in the Beresford area. The traffic estimation errors
are comparable to or better than those reported in the literature, and the
forecast traffic volumes provide a solid foundation for identifying
high-volume road segments and prioritizing funding. Study results clearly
show TDM is a practical, useful, cost-effective way for estimating traffic
parameters on low-class roads.
Journal: Transportation Planning and Technology
Pages: 423-439
Issue: 5
Volume: 32
Year: 2009
Month: 8
X-DOI: 10.1080/03081060903257053
File-URL: http://hdl.handle.net/10.1080/03081060903257053
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:5:p:423-439
Template-Type: ReDIF-Article 1.0
Author-Name: Jin-Woo Park
Author-X-Name-First: Jin-Woo
Author-X-Name-Last: Park
Author-Name: Rodger Robertson
Author-X-Name-First: Rodger
Author-X-Name-Last: Robertson
Author-Name: Cheng-Lung Wu
Author-X-Name-First: Cheng-Lung
Author-X-Name-Last: Wu
Title: Differences in air passengers’ buying behaviour: findings from Korean and Australian international passengers
Abstract:
Abstract This paper investigates how air
passengers’ expectations, ticket price, airline service quality,
value, passenger satisfaction and airline image determine their buying
behaviour. To test the conceptual frameworks, path analysis was applied to
data collected from Korean and Australian international passengers to
examine differences between these two groups. Further analyses were
undertaken on different passenger segments between national and foreign
airline passengers. The results of the path analysis reveal that air
passengers’ buying behaviour differs significantly between Korean
and Australian international passengers. Results also reveal that the
determinants of air passengers’ buying behaviour differ by
airlines.
Journal: Transportation Planning and Technology
Pages: 441-460
Issue: 5
Volume: 32
Year: 2009
Month: 4
X-DOI: 10.1080/03081060903017176
File-URL: http://hdl.handle.net/10.1080/03081060903017176
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:5:p:441-460
Template-Type: ReDIF-Article 1.0
Author-Name: Jin-Su Mun
Author-X-Name-First: Jin-Su
Author-X-Name-Last: Mun
Title: A model and solution algorithm for dynamic deterministic user equilibrium assignment
Abstract:
Abstract In this paper a route-based dynamic deterministic
user equilibrium assignment model is presented. Some features of the
linear travel time model are first investigated and then a divided linear
travel time model is proposed for the estimation of link travel time: it
addresses the limitations of the linear travel time model. For the
application of the proposed model to general transportation networks, this
paper provides thorough investigations on the computational issues in
dynamic traffic assignment with many-to-many OD pairs and presents an
efficient solution procedure. The numerical calculations demonstrate that
the proposed model and solution algorithm produce satisfactory solutions
for a network of substantial size with many-to-many OD pairs. Comparisons
of assignment results are also made to show the impacts of incorporation
of different link travel time models on the assignment results.
Journal: Transportation Planning and Technology
Pages: 461-497
Issue: 6
Volume: 32
Year: 2009
Month: 9
X-DOI: 10.1080/03081060903374668
File-URL: http://hdl.handle.net/10.1080/03081060903374668
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:6:p:461-497
Template-Type: ReDIF-Article 1.0
Author-Name: Yousef Shafahi
Author-X-Name-First: Yousef
Author-X-Name-Last: Shafahi
Author-Name: Reza Faturechi
Author-X-Name-First: Reza
Author-X-Name-Last: Faturechi
Title: A new fuzzy approach to estimate the O--D matrix from link volumes
Abstract:
Abstract Estimation of the origin--destination (O--D) trip
demand matrix plays a key role in travel analysis and transportation
planning and operations. Many researchers have developed different O--D
matrix estimation methods using traffic counts, which allow simple data
collection as opposed to the costly traditional direct estimation methods
based on home and roadside interviews. In this paper, we present a new
fuzzy model to estimate the O--D matrix from traffic counts. Since link
data only represent a snapshot situation, resulting in inconsistency of
data and poor quality of the estimated O--Ds, the proposed method
considers the link data as a fuzzy number that varies within a certain
bandwidth. Shafahi and Ramezani's fuzzy assignment method is improved upon
and used to assign the estimated O--D matrix, which causes the assigned
volumes to be fuzzy numbers similar to what is proposed for observed link
counts. The shortest path algorithm of the proposed method is similar to
the Floyd--Warshall algorithm, and we call it the Fuzzy Floyd--Warshall
Algorithm. A new fuzzy comparing index is proposed by improving the fuzzy
comparison method developed by Dubois and Prade to estimate and compare
the distance between the assigned and observed link volumes. The O--D
estimation model is formulated as a convex minimization problem based on
the proposed fuzzy index to minimize the fuzzy distance between the
observed and assigned link volumes. A gradient-based method is used to
solve the problem. To ensure the original O--D matrix does not change more
than necessary during the iterations, a fuzzy rule-based approach is
proposed to control the matrix changes.
Journal: Transportation Planning and Technology
Pages: 499-526
Issue: 6
Volume: 32
Year: 2009
Month: 9
X-DOI: 10.1080/03081060903374700
File-URL: http://hdl.handle.net/10.1080/03081060903374700
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:6:p:499-526
Template-Type: ReDIF-Article 1.0
Author-Name: Angel Ibeas
Author-X-Name-First: Angel
Author-X-Name-Last: Ibeas
Author-Name: Jose L. Moura
Author-X-Name-First: Jose L.
Author-X-Name-Last: Moura
Author-Name: Luigi dell'Olio
Author-X-Name-First: Luigi
Author-X-Name-Last: dell'Olio
Title: Planning school transport: design of routes with flexible school opening times
Abstract:
Abstract This paper puts forward a methodology for
designing a system for school transport which, apart from designing
routes, specifies school opening times. Traditionally school opening times
have always been identical in the same area meaning many buses have to be
used at the same time. This paper suggests the staggering of school
opening times in order to minimise the number of buses and thereby reduce
the enormous costs involved in running them. The methodology is based on:
a first phase which addresses the classic routing problem by using mixed
integer lineal programming and a second phase which uses bi-level
programming to find the vector for school opening times, which, when
staying within the constraints of the problem, minimises the direct costs
of the system. The upper level represents the evaluation of the system
costs and the lower level finds the best combination of optimum routes for
the same bus.
Journal: Transportation Planning and Technology
Pages: 527-544
Issue: 6
Volume: 32
Year: 2009
Month: 9
X-DOI: 10.1080/03081060903374734
File-URL: http://hdl.handle.net/10.1080/03081060903374734
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:6:p:527-544
Template-Type: ReDIF-Article 1.0
Author-Name: Joris Melkert
Author-X-Name-First: Joris
Author-X-Name-Last: Melkert
Author-Name: Bert van Wee
Author-X-Name-First: Bert
Author-X-Name-Last: van Wee
Title: Assessment of innovative transport concepts using cost--benefit analysis
Abstract:
Abstract New guidelines for assessing the costs and
benefits of transport systems have been used in the Netherlands since
2000. This paper reports on the first use of these guidelines for
assessment of an innovative transport concept, the Superbus. The Superbus
concept combines new vehicle technologies, demand-driven logistics and
partly new infrastructure. Ex ante evaluation of an
innovative transport system proved to be possible but more difficult than
that of a conventional system. The main challenge was found in taking into
account the uncertainties, not only expressing them as potential extra
costs but also taking into account the potential benefits of innovations.
Journal: Transportation Planning and Technology
Pages: 545-571
Issue: 6
Volume: 32
Year: 2009
Month: 9
X-DOI: 10.1080/03081060903374767
File-URL: http://hdl.handle.net/10.1080/03081060903374767
File-Format: text/html
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Handle: RePEc:taf:transp:v:32:y:2009:i:6:p:545-571
Template-Type: ReDIF-Article 1.0
Author-Name: Stephen Ison
Author-X-Name-First: Stephen
Author-X-Name-Last: Ison
Author-Name: Helena Titheridge
Author-X-Name-First: Helena
Author-X-Name-Last: Titheridge
Title: Universities’ Transport Studies Group UK Annual Conference 2009
Journal: Transportation Planning and Technology
Pages: 1-2
Issue: 1
Volume: 33
Year: 2010
Month: 2
X-DOI: 10.1080/03081060903429256
File-URL: http://hdl.handle.net/10.1080/03081060903429256
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:1:p:1-2
Template-Type: ReDIF-Article 1.0
Author-Name: Phil Goodwin
Author-X-Name-First: Phil
Author-X-Name-Last: Goodwin
Author-Name: Glenn Lyons
Author-X-Name-First: Glenn
Author-X-Name-Last: Lyons
Title: Public attitudes to transport: interpreting the evidence
Abstract:
Abstract Public attitudes to transport are
complex. This paper summarises selected themes from a large scale evidence
review of over 300 studies, with a focus on attitudes to important (and
sometimes controversial) aspects of transport policy, namely assessment of
the importance of congestion, relative popularity of different policy
interventions, expanding provision for international air transport and
environmental improvement. Findings include: (1) evidence of majority
attitudes that traffic congestion is seen as a national problem but less
so for individual respondents and their families; (2) evidence of large
majority (but not unanimous) support for improvements to public transport,
reductions in speed and restrictions on traffic in residential areas,
while road building and road pricing are divisive and controversial; (3)
recent deep inconsistencies in evidence cited on attitudes to providing
for growth in air transport; and (4) evidence of a gradation of
willingness to change behaviour for environmental reasons. A critical
evidence gap is on changes in individual attitudes over time, essential
for understanding how attitudes form, and for their assessment in
informing policy formulation.
Journal: Transportation Planning and Technology
Pages: 3-17
Issue: 1
Volume: 33
Year: 2009
Month: 10
X-DOI: 10.1080/03081060903429264
File-URL: http://hdl.handle.net/10.1080/03081060903429264
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2009:i:1:p:3-17
Template-Type: ReDIF-Article 1.0
Author-Name: Yusak O. Susilo
Author-X-Name-First: Yusak O.
Author-X-Name-Last: Susilo
Author-Name: Martin Dijst
Author-X-Name-First: Martin
Author-X-Name-Last: Dijst
Title: Behavioural decisions of travel-time ratios for work, maintenance and leisure activities in the Netherlands
Abstract:
Abstract Using the 2005 Dutch National Travel
Survey data-set this paper investigates the influences of
socio-demographics, journey patterns and built environment factors on the
ratio of travel time and activity duration that an individual spends when
engaging in work, daily shopping, non-daily shopping and sport/recreation
activities. The results show that socio-demographics and other variables
have unique influence on each type of activity. The travel-time ratios
(TTRs) of some activities are more varied across the population whilst
some have more ‘acceptable’ ratios. The interaction between
activity duration and travel time is also unique for each
socio-demographic group. For example, given the same amount of travel
time, males will spend significantly less time on shopping than females;
whilst for sports and recreational activities males will spend more time
on than their female counterpart. By understanding individuals’
different TTR values for different activities, the TTR can be an important
guide when providing activity locations which in turn can help in creating
sustainable urban transport conditions.
Journal: Transportation Planning and Technology
Pages: 19-34
Issue: 1
Volume: 33
Year: 2009
Month: 10
X-DOI: 10.1080/03081060903429280
File-URL: http://hdl.handle.net/10.1080/03081060903429280
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2009:i:1:p:19-34
Template-Type: ReDIF-Article 1.0
Author-Name: Rico Merkert
Author-X-Name-First: Rico
Author-X-Name-Last: Merkert
Author-Name: Andrew S.J. Smith
Author-X-Name-First: Andrew S.J.
Author-X-Name-Last: Smith
Author-Name: Chris A. Nash
Author-X-Name-First: Chris A.
Author-X-Name-Last: Nash
Title: Benchmarking of train operating firms -- a transaction cost efficiency analysis
Abstract:
Abstract Benchmarking of rail firms has become a
matter of substantial interest and many authors have emphasised the
importance of transaction costs in regard to assessing the desirability of
vertical separation. However, due to data and methodological limitations,
previous rail efficiency studies have been unable to explicitly analyse
the role that transaction cost measures play in determining the relative
efficiency performance of different rail firms or rail systems. This paper
incorporates recently produced measures of transaction costs into a
two-stage bootstrapped data envelopment analysis (DEA), applied to a
sample of 43 Swedish, German and British train operating firms. In the
first stage, the number of transaction staff is included as a separate
(physical) input within the DEA. This is followed by a second-step Tobit
regression which seeks to evaluate the impact of institutional (vertical
separation and type of operation), environmental (competition) and
transactional (monetary values of transaction costs) factors on technical
efficiency. The results of the analysis show that transactional factors
are more important in determining technical efficiency than institutional
factors and the opening-up of competition.
Journal: Transportation Planning and Technology
Pages: 35-53
Issue: 1
Volume: 33
Year: 2009
Month: 10
X-DOI: 10.1080/03081060903429330
File-URL: http://hdl.handle.net/10.1080/03081060903429330
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2009:i:1:p:35-53
Template-Type: ReDIF-Article 1.0
Author-Name: Simon P. Blainey
Author-X-Name-First: Simon P.
Author-X-Name-Last: Blainey
Author-Name: John M. Preston
Author-X-Name-First: John M.
Author-X-Name-Last: Preston
Title: Modelling local rail demand in South Wales
Abstract:
Abstract Direct demand models have been
developed based on ticket sales data for 85 local rail stations in South
Wales. Initially log-linear regression models were calibrated,
incorporating a variety of independent variables. Geographical Information
Systems were used to implement flexible station catchment definition
methods, notably flow-specific catchments where population units were
allocated to stations by minimising the total travel time to individual
destinations. To validate these methods a survey of ultimate trip end
locations was carried out on the Rhymney line in South Wales. To give
consistency with predictions from trip end models, methods were developed
to constrain predicted trip numbers for each flow based on the total trips
observed or predicted from origin stations. Simple scaling had only
limited success, so probabilistic trip distribution models were calibrated
by using both the linear and non-linear regression. These gave superior
results and explicitly incorporated the effects of intervening
opportunities in the model form.
Journal: Transportation Planning and Technology
Pages: 55-73
Issue: 1
Volume: 33
Year: 2009
Month: 10
X-DOI: 10.1080/03081060903429363
File-URL: http://hdl.handle.net/10.1080/03081060903429363
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2009:i:1:p:55-73
Template-Type: ReDIF-Article 1.0
Author-Name: S. Heslop
Author-X-Name-First: S.
Author-X-Name-Last: Heslop
Author-Name: J. Harvey
Author-X-Name-First: J.
Author-X-Name-Last: Harvey
Author-Name: N. Thorpe
Author-X-Name-First: N.
Author-X-Name-Last: Thorpe
Author-Name: C. Mulley
Author-X-Name-First: C.
Author-X-Name-Last: Mulley
Title: Factors that comprise driver boredom and their relationships to preferred driving speed and demographic variables
Abstract:
Abstract Driver boredom is an area of driver
behaviour that has received limited attention. This study explores the
factor structure underlying driver boredom and investigates age and gender
differences in the experience of driver boredom, and preferred driving
speeds using a self-report questionnaire. A rotated principle components
analysis of 49 attitude items yielded four dimensions: responses to
under-stimulation; flow; lapse and error-proneness; and anxiety. Age and
gender differences were found in these dimensions as well as in preferred
driving speeds; two of the factors, responses to under-stimulation and
flow were particularly related to preferred driving speeds on all but
urban roads. These findings are considered in terms of cognitive capacity
required for driving, self-reporting of cognitive failure and
error-proneness and the implications for drivers maintaining safety
margins when bored.
Journal: Transportation Planning and Technology
Pages: 75-89
Issue: 1
Volume: 33
Year: 2009
Month: 10
X-DOI: 10.1080/03081060903429389
File-URL: http://hdl.handle.net/10.1080/03081060903429389
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2009:i:1:p:75-89
Template-Type: ReDIF-Article 1.0
Author-Name: Jiang Han
Author-X-Name-First: Jiang
Author-X-Name-Last: Han
Author-Name: John W. Polak
Author-X-Name-First: John W.
Author-X-Name-Last: Polak
Author-Name: Javier Barria
Author-X-Name-First: Javier
Author-X-Name-Last: Barria
Author-Name: Rajesh Krishnan
Author-X-Name-First: Rajesh
Author-X-Name-Last: Krishnan
Title: On the estimation of space-mean-speed from inductive loop detector data
Abstract:
Abstract Travel time is an important indicator
of network performance used in traffic operations and management. Commonly
deployed inductive loop detectors (ILDs) measure time-mean-speed (TMS),
whereas space-mean-speed (SMS) is required to calculate the travel time. A
well-known relationship between the TMS and the SMS was derived by
Wardrop. However, this relationship cannot be used in practice to estimate
travel times as it requires knowledge of the variance of the SMS. The
variance of the SMS is not measured by the ILDs and is normally not
available in practice. A novel formulation is presented in this paper to
estimate the SMS using TMS obtained from ILDs. In addition, two additional
models based on the formulation are developed to improve the estimation
performance by taking traffic states into account. The initial results
show that the proposed formulation can used to estimate the SMS, and hence
the travel time, accurately using real-world data.
Journal: Transportation Planning and Technology
Pages: 91-104
Issue: 1
Volume: 33
Year: 2009
Month: 10
X-DOI: 10.1080/03081060903429421
File-URL: http://hdl.handle.net/10.1080/03081060903429421
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2009:i:1:p:91-104
Template-Type: ReDIF-Article 1.0
Author-Name: Gordon Wilmsmeier
Author-X-Name-First: Gordon
Author-X-Name-Last: Wilmsmeier
Author-Name: Inmaculada Martínez-Zarzoso
Author-X-Name-First: Inmaculada
Author-X-Name-Last: Martínez-Zarzoso
Title: Determinants of maritime transport costs -- a panel data analysis for Latin American trade
Abstract:
Abstract This paper analyses the determinants of
maritime transport costs for intra-Latin American trade over a period of 6
years (1999--2004). The data refer to yearly disaggregated (five-digit
level Standard International Classification) containerised maritime trade
flows on 277 trade routes. With this data-set, a transport costs equation
is estimated using linear regression analysis in a panel data framework.
The first contribution to the literature is to exploit the greater
variability present in the data and to control for unobservable
heterogeneous effects. The second is to investigate the role of distance
as a determinant of international maritime transport costs in comparison
to the location within the liner services network and the potential impact
of being peripheral in the liner shipping network. Finally, the work
analyses influence of open registries on the variability of maritime
transport costs. To the authors’ knowledge, this has not been done
previously. Three groups of explanatory variables are considered. Firstly,
time variant variables: use of open registries and trade imbalance.
Secondly, variables related to liner shipping network structures: number
of liner services; shipping opportunities; deployed ships and deployed
TEUs. Finally, product-related variables such as volume of shipment, value
of product and special characteristics of the cargo (i.e. refrigerated
cargo). The results allow the quantification of the effects of explanatory
variables on international maritime transport costs and to compare the
obtained elasticities with previous cross-section analyses. In particular,
estimating the impact of the use of open registries on maritime transport
cost is a new contribution in this field that could provide policy-makers
with valuable information to be used in the implementation of economic
policies.
Journal: Transportation Planning and Technology
Pages: 105-121
Issue: 1
Volume: 33
Year: 2009
Month: 10
X-DOI: 10.1080/03081060903429447
File-URL: http://hdl.handle.net/10.1080/03081060903429447
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2009:i:1:p:105-121
Template-Type: ReDIF-Article 1.0
Author-Name: Bing-Feng Si
Author-X-Name-First: Bing-Feng
Author-X-Name-Last: Si
Author-Name: Ming Zhong
Author-X-Name-First: Ming
Author-X-Name-Last: Zhong
Author-Name: Hao-Zhi Zhang
Author-X-Name-First: Hao-Zhi
Author-X-Name-Last: Zhang
Author-Name: Wen-Long Jin
Author-X-Name-First: Wen-Long
Author-X-Name-Last: Jin
Title: An improved Dial's algorithm for logit-based traffic assignment within a directed acyclic network
Abstract:
Abstract Dial's algorithm is one of the most effective and
popular procedures for a logit-type stochastic traffic assignment, as it
does not require path enumeration over a network. However, a fundamental
problem associated with the algorithm is its simple definition of
‘efficient paths’, which sometimes produces unrealistic flow
patterns. In this paper, an improved algorithm based on the route
extension coefficient is proposed in order to circumvent this problem, in
which ‘efficient paths’ simultaneously
consider link travel cost and minimum travel cost. Path enumeration is
still not required and a similar computing efficiency with the original
algorithm is guaranteed. A limitation of the algorithm is that it can only
be applied to a directed acyclic network because a topological sorting
algorithm is used to decide the order of the sequential calculation. A
numerical example based on the Beijing subway network illustrates the
effectiveness of the proposed algorithm. It is found that it is able to
exclude most unrealistic paths, but include all reasonable paths when
compared with path enumeration and the original Dial's algorithm.
Journal: Transportation Planning and Technology
Pages: 123-137
Issue: 2
Volume: 33
Year: 2010
Month: 1
X-DOI: 10.1080/03081061003643705
File-URL: http://hdl.handle.net/10.1080/03081061003643705
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:2:p:123-137
Template-Type: ReDIF-Article 1.0
Author-Name: Yen-Ching Sung
Author-X-Name-First: Yen-Ching
Author-X-Name-Last: Sung
Title: Consumer learning behavior in choosing electric motorcycles
Abstract:
Abstract The purpose of this paper is to understand the
effect of the learning process on consumers' choice behavior for electric
motorcycles in Taiwan. The electric motorcycle is a new technological
product so consumers need to gather all kinds of information --
performance, operating cost, government subsidy policy, etc. -- to reduce
their uncertainty about the product. In this paper, a four-stage stated
preference experiment is designed and a survey applied. At each stage, the
survey gives respondents new information about the electric motorcycle. In
this process, respondents gather information and update their expectation
about electric motorcycles in a Bayesian manner. This paper calibrates a
Bayesian learning process model to the data. The results show that
respondents have a higher quality perception of the electric motorcycle
than the gasoline motorcycle and there is heterogeneous learning across
respondents. The manufacturers can use these to target specific consumers
to promote the electric motorcycle.
Journal: Transportation Planning and Technology
Pages: 139-155
Issue: 2
Volume: 33
Year: 2010
Month: 1
X-DOI: 10.1080/03081061003643747
File-URL: http://hdl.handle.net/10.1080/03081061003643747
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:2:p:139-155
Template-Type: ReDIF-Article 1.0
Author-Name: Rodrigo Fernandez
Author-X-Name-First: Rodrigo
Author-X-Name-Last: Fernandez
Author-Name: Cristian E. Cortes
Author-X-Name-First: Cristian E.
Author-X-Name-Last: Cortes
Author-Name: Vanessa Burgos
Author-X-Name-First: Vanessa
Author-X-Name-Last: Burgos
Title: Microscopic simulation of transit operations: policy studies with the MISTRANSIT application programming interface
Abstract:
Abstract Microscopic traffic simulators are the most
advanced tools for representing the movement of vehicles on a transport
network. However, the energy spent in traffic microsimulation has been
mainly oriented to cars. Little interest has been devoted to more
sophisticated models for simulating transit systems. Commercial software
has some options to incorporate the operation of transit vehicles, but
they are insufficient to properly consider a real public transport system.
This paper develops an Application Programming Interface, called
MIcroscopic Simulation of TRANSIT (MISTRANSIT), using the commercial
microsimulator PARAllel MICroscopic Simulation. MISTRANSIT makes advances
in three ways: public transport vehicles can have new characteristics;
passengers are incorporated and traced as individual objects; and specific
models represent the interaction between passengers and vehicles at stops.
This paper presents the modelling approach as well as various experiments
to illustrate the feasibility of MISTRANSIT for studying policy operations
of transit systems.
Journal: Transportation Planning and Technology
Pages: 157-176
Issue: 2
Volume: 33
Year: 2010
Month: 1
X-DOI: 10.1080/03081061003643762
File-URL: http://hdl.handle.net/10.1080/03081061003643762
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:2:p:157-176
Template-Type: ReDIF-Article 1.0
Author-Name: Taku Fujiyama
Author-X-Name-First: Taku
Author-X-Name-Last: Fujiyama
Author-Name: Nick Tyler
Author-X-Name-First: Nick
Author-X-Name-Last: Tyler
Title: Predicting the walking speed of pedestrians on stairs
Abstract:
Abstract In this paper, we propose a framework in which
the behaviour of a pedestrian is predicted based on the characteristics of
both the pedestrian and the facility the pedestrian uses. As an example of
its application, we develop a model to predict the walking speed of a
pedestrian on stairs. We examine the physiology and biomechanics of
walking on stairs, and then develop a model that predicts walking speed
based on the weight and leg extensor power of the pedestrian, and the
gradient of the stairs. The model was calibrated by experiment and
validated by observations. The proposed framework establishes the
importance of bridging the two types of characteristics: those of a
pedestrian and those of the facility the pedestrian uses. Also, the
developed walking speed model is useful for simulating how the design of
stairs affects pedestrian circulation.
Journal: Transportation Planning and Technology
Pages: 177-202
Issue: 2
Volume: 33
Year: 2010
Month: 1
X-DOI: 10.1080/03081061003643770
File-URL: http://hdl.handle.net/10.1080/03081061003643770
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:2:p:177-202
Template-Type: ReDIF-Article 1.0
Author-Name: Niloofar Jafari
Author-X-Name-First: Niloofar
Author-X-Name-Last: Jafari
Author-Name: Seyed Hessameddin Zegordi
Author-X-Name-First: Seyed Hessameddin
Author-X-Name-Last: Zegordi
Title: The airline perturbation problem: considering disrupted passengers
Abstract:
Abstract When airlines are faced with some unforeseen
short-term events, they have to reconstruct their flight schedules.
Although aircraft recovery decisions affect passengers, these disrupted
passengers and recovering them have not been explicitly considered in most
previous aircraft recovery models. This paper presents an assignment model
for airline schedule recovery which recovers both aircraft and disrupted
passengers simultaneously, using a rolling horizon time framework. Our
model examines possible flight retiming, aircraft swapping, over-flying,
ferrying, utilization of reserve aircraft, cancellation and passenger
reassignment to generate an efficient schedule recovery plan. The model
ensures that the schedule returns to normal within a certain time and the
objective is to minimize operational recovery aircraft cost, cancellation
and delay cost as well as disrupted passenger cost. The model is tested
using a data-set with two disruption scenarios. The computational results
show that it is capable of handling the integrated aircraft and passenger
recovery problem successfully.
Journal: Transportation Planning and Technology
Pages: 203-220
Issue: 2
Volume: 33
Year: 2010
Month: 1
X-DOI: 10.1080/03081061003643788
File-URL: http://hdl.handle.net/10.1080/03081061003643788
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:33:y:2010:i:2:p:203-220
Template-Type: ReDIF-Article 1.0
Author-Name: Ming-Miin Yu
Author-X-Name-First: Ming-Miin
Author-X-Name-Last: Yu
Title: Capacity efficiency measurement using a three-stage DEA approach: evidence from domestic airports in Taiwan
Abstract:
Abstract This paper aims to modify the Stage 1 data
envelopment analysis (DEA) of the three-stage DEA approach to allow for
the fact that undesirable outputs like aircraft noise may not be freely
disposable, and the efficiency measure of airport capacity use is modified
to allow for an asymmetric treatment of desirable and undesirable outputs.
A directional distance function is used to construct an output orientated
DEA model with a constant returns to scale assumption. Stage 3 DEA is a
repetition of Stage 1 DEA with observed outputs adjusting to account for
the effects of variation in the operating environment, variation in
statistical noise, and variation in technical-change obtained from
stochastic frontier analysis (SFA) regression analysis in Stage 2. Results
from the empirical analysis for the case of Taiwan's domestic airports
strongly demonstrate that airport capacity efficiency performance turns
out to be very sensitive to whether or not environmental impacts,
stochastic noises, technical-change factor, and undesirable outputs are
included.
Journal: Transportation Planning and Technology
Pages: 221-235
Issue: 2
Volume: 33
Year: 2010
Month: 1
X-DOI: 10.1080/03081061003643804
File-URL: http://hdl.handle.net/10.1080/03081061003643804
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:2:p:221-235
Template-Type: ReDIF-Article 1.0
Author-Name: Rafael Palacios
Author-X-Name-First: Rafael
Author-X-Name-Last: Palacios
Author-Name: Anuja Doshi
Author-X-Name-First: Anuja
Author-X-Name-Last: Doshi
Author-Name: Amar Gupta
Author-X-Name-First: Amar
Author-X-Name-Last: Gupta
Author-Name: Vince Orlando
Author-X-Name-First: Vince
Author-X-Name-Last: Orlando
Author-Name: Brent R. Midwood
Author-X-Name-First: Brent R.
Author-X-Name-Last: Midwood
Title: Neural network models to detect airplane near-collision situations
Abstract:
Abstract The US Federal Aviation Administration (FAA) has
been investigating early warning accident prevention systems in an effort
to prevent runway collisions. One system in place is the Airport Movement
Area Safety System (AMASS), developed under contract for the FAA. AMASS
internal logic is based on computing separation distances among airplanes,
and it utilizes prediction models to foresee potential accidents. Research
described in this paper shows that neural network models have the
capability to accurately predict future separation distances and aircraft
positions. Accurate prediction algorithms integrated in safety systems
such as AMASS can potentially deliver earlier warnings to air traffic
controllers, hence reducing the risk of runway accidents even further.
Additionally, more accurate predictions will lower the incidence of false
alarms, increasing confidence in the detection system. In this paper,
different incipient detection approaches are presented, and several
prediction techniques are evaluated using data from one large and busy
airport. The main conclusion is that no single approach is good for every
possible scenario, but the optimal performance is attained by a
combination of the techniques presented.
Journal: Transportation Planning and Technology
Pages: 237-255
Issue: 3
Volume: 33
Year: 2010
Month: 1
X-DOI: 10.1080/03081061003732300
File-URL: http://hdl.handle.net/10.1080/03081061003732300
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:3:p:237-255
Template-Type: ReDIF-Article 1.0
Author-Name: Obrad Babić
Author-X-Name-First: Obrad
Author-X-Name-Last: Babić
Author-Name: Milica Kalić
Author-X-Name-First: Milica
Author-X-Name-Last: Kalić
Author-Name: Goran Pavković
Author-X-Name-First: Goran
Author-X-Name-Last: Pavković
Author-Name: Slavica Dožić
Author-X-Name-First: Slavica
Author-X-Name-Last: Dožić
Author-Name: Mirjana Čangalović
Author-X-Name-First: Mirjana
Author-X-Name-Last: Čangalović
Title: Heuristic approach to the airline schedule disturbances problem
Abstract:
Abstract When disturbances make it impossible to realise
the planned flight schedule, the dispatcher at the airline operational
centre defines a new flight schedule based on airline policy, in order to
reduce the negative effects of these perturbations. Depending on airline
policy, when designing the new flight schedule, the dispatcher delays or
cancels some flights and reassigns some flights to available aircraft. In
this paper, a decision support system (DSS) for solving the airline
schedule disturbances problem is developed aiming to assist decision
makers in handling disturbances in real-time. The system is based on a
heuristic algorithm, which generates a list of different feasible
schedules ordered according to the value of an objective function. The
dispatcher can thus select and implement one of them. In this paper, the
possibilities of DSS are illustrated by real numerical examples that
concern JAT Airways' flight schedule disturbances.
Journal: Transportation Planning and Technology
Pages: 257-280
Issue: 3
Volume: 33
Year: 2010
Month: 2
X-DOI: 10.1080/03081061003732318
File-URL: http://hdl.handle.net/10.1080/03081061003732318
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:3:p:257-280
Template-Type: ReDIF-Article 1.0
Author-Name: Lesley Strawderman
Author-X-Name-First: Lesley
Author-X-Name-Last: Strawderman
Author-Name: Hohyun Lee
Author-X-Name-First: Hohyun
Author-X-Name-Last: Lee
Author-Name: John M. Usher
Author-X-Name-First: John M.
Author-X-Name-Last: Usher
Title: Utilization of behavioral studies in developing the intermodal simulator for the analysis of pedestrian traffic (ISAPT)
Abstract:
Abstract The effective and efficient design of intermodal
facilities is highly dependent on the pedestrian use of these facilities.
A pedestrian simulation model, intermodal simulator for the analysis of
pedestrian traffic (ISAPT), was created to study the impact of facility
design on pedestrian behavior. This paper presents results from an
empirical study examining the walking behavior of pedestrians in a
corridor and how it was used to improve ISAPT. To quantify pedestrian
behavior, 20 minutes of video footage from a university building corridor
were studied. The travel speed of the 68 pedestrians included in the
analysis was normally distributed with an average of 1.00 m/s. The
facility had a flow rate of 0.92 ped/min/m and an overall area module of
1.14 m-super-2/ped. To incorporate the findings into ISAPT, the buildings
architecture was represented in the simulation. Resource points and
barriers, path markers, and pedestrian characteristics were added to the
model as well. Future work related to planned empirical studies and
modeling strategies are presented.
Journal: Transportation Planning and Technology
Pages: 281-295
Issue: 3
Volume: 33
Year: 2010
Month: 2
X-DOI: 10.1080/03081061003732334
File-URL: http://hdl.handle.net/10.1080/03081061003732334
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:3:p:281-295
Template-Type: ReDIF-Article 1.0
Author-Name: Bruno F. Santos
Author-X-Name-First: Bruno F.
Author-X-Name-Last: Santos
Author-Name: António P. Antunes
Author-X-Name-First: António P.
Author-X-Name-Last: Antunes
Author-Name: Eric J. Miller
Author-X-Name-First: Eric J.
Author-X-Name-Last: Miller
Title: Interurban road network planning model with accessibility and robustness objectives
Abstract:
Abstract Road network planning (or design) problems
consist of determining the best investment decisions to be made with
regard to the improvement of a road network. In this paper, we propose an
optimization model for long-term interurban road network planning where
accessibility and robustness objectives are simultaneously taken into
account. Three network robustness measures were defined to assess
different robustness concerns: network spare capacity; city evacuation
capacity; and network vulnerability. The results that may be obtained from
the application of the model are illustrated for three random networks.
Special attention is given to the implications of adopting each one of the
robustness measures upon the optimum solution provided by the model.
Journal: Transportation Planning and Technology
Pages: 297-313
Issue: 3
Volume: 33
Year: 2010
Month: 2
X-DOI: 10.1080/03081061003732375
File-URL: http://hdl.handle.net/10.1080/03081061003732375
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:3:p:297-313
Template-Type: ReDIF-Article 1.0
Author-Name: Chao-Chung Kang
Author-X-Name-First: Chao-Chung
Author-X-Name-Last: Kang
Author-Name: Cheng-Min Feng
Author-X-Name-First: Cheng-Min
Author-X-Name-Last: Feng
Author-Name: Chiu-Yen Kuo
Author-X-Name-First: Chiu-Yen
Author-X-Name-Last: Kuo
Title: Using bi-level programming to analyze the royalty for private--public partnership projects: the operational quantity-based model
Abstract:
Abstract This paper develops a royalty negotiation model
based on the operating quantity of Build, Operate, and Transfer (BOT)
projects for both government and the private sector using a bi-level
programming (BLP) approach. The royalty negotiation is one of many
critical negotiation items of a concession contract. This study develops a
royalty negotiation model to simulate the negotiation behavior of two
parties, and derives the heuristic algorithm for the BLP problem. A number
of factors are incorporated into this algorithm including the concession
rate, the time value discount rate, the learning rate, and the number of
negotiations. The paper includes a case study of the Taipei Port Container
Logistic BOT Project. The results show that the two parties involved
completed royalty negotiation at the sixth negotiation stage. The findings
show that the government can receive a royalty from the concessionaire,
calculated at 0.00386% of the operating quantity of this BOT project.
Therefore, the royalty negotiation model developed here could be employed
to explain negotiation behavior.
Journal: Transportation Planning and Technology
Pages: 315-328
Issue: 3
Volume: 33
Year: 2010
Month: 2
X-DOI: 10.1080/03081061003732383
File-URL: http://hdl.handle.net/10.1080/03081061003732383
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:3:p:315-328
Template-Type: ReDIF-Article 1.0
Author-Name: Bin Yu
Author-X-Name-First: Bin
Author-X-Name-Last: Yu
Author-Name: Jin-bao Yao
Author-X-Name-First: Jin-bao
Author-X-Name-Last: Yao
Author-Name: Zhong-Zhen Yang
Author-X-Name-First: Zhong-Zhen
Author-X-Name-Last: Yang
Title: An improved headway-based holding strategy for bus transit
Abstract:
Abstract This paper presents an improved headway-based
holding strategy integrating bus transit travel and dwelling time
prediction. A support vector machine-based (SVM) model is developed to
predict the baseline travel and dwell times of buses based on recent data.
In order to reduce prediction errors, an adaptive algorithm is used
together with real-time bus operational information and estimated baseline
times from SVM models. The objective of the improved holding strategy is
to minimize the total waiting times of passengers at the current stop and
at successive stops. Considering the time-varying features of bus running,
a ‘forgetting factor’ is introduced to weight the most
recent data and reduce the disturbance from unexpected incidents. Finally,
the improved holding strategy proposed in this study is illustrated using
the microscopic simulation model Paramics and some
conclusions are drawn.
Journal: Transportation Planning and Technology
Pages: 329-341
Issue: 3
Volume: 33
Year: 2010
Month: 1
X-DOI: 10.1080/03081061003732417
File-URL: http://hdl.handle.net/10.1080/03081061003732417
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:3:p:329-341
Template-Type: ReDIF-Article 1.0
Author-Name: Nathalie Van Nuffel
Author-X-Name-First: Nathalie
Author-X-Name-Last: Van Nuffel
Author-Name: Piet Saey
Author-X-Name-First: Piet
Author-X-Name-Last: Saey
Author-Name: Ben Derudder
Author-X-Name-First: Ben
Author-X-Name-Last: Derudder
Author-Name: Lomme Devriendt
Author-X-Name-First: Lomme
Author-X-Name-Last: Devriendt
Author-Name: Frank Witlox
Author-X-Name-First: Frank
Author-X-Name-Last: Witlox
Title: Measuring hierarchical differentiation: connectivity and dominance in the European urban network
Abstract:
Abstract This paper presents an examination of the
empirical merits of a set of spatial interaction indices for measuring
hierarchical differentiation (i.e. dominance and connectivity) in a
spatial network. To allow for the comparison of the degree of hierarchical
differentiation in networks with different numbers of nodes/links, we
propose to normalize the ratio between the real measures and the
corresponding values for a rank size distribution in order to obtain
readily interpretable measures of hierarchical differentiation. When
applied to data on air passenger flows within Europe, the normalized
indices, interpreted together, appear to give a good idea of the tendency
toward hierarchical differentiation. The potential usefulness of this
analytical framework is discussed in the context of studies on
(transnational) inter-city relations and empirical assessments of changes
in the spatial configuration of airline networks.
Journal: Transportation Planning and Technology
Pages: 343-366
Issue: 4
Volume: 33
Year: 2010
Month: 5
X-DOI: 10.1080/03081060.2010.494028
File-URL: http://hdl.handle.net/10.1080/03081060.2010.494028
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:4:p:343-366
Template-Type: ReDIF-Article 1.0
Author-Name: Paul Hodgson
Author-X-Name-First: Paul
Author-X-Name-Last: Hodgson
Author-Name: Stephen Potter
Author-X-Name-First: Stephen
Author-X-Name-Last: Potter
Title: Refining light rapid transit typology: a UK perspective
Abstract:
Abstract Recent developments in the light rapid transit
sector have introduced transit modes that are attempting to imitate the
performance of others, e.g. buses with tram-like characteristics. The
boundaries between existing definitions of what is a bus, tram or train
are becoming blurred. For transport studies and practice this requires a
review of how we define modes. This is not just a matter of semantics, but
has safety and competition regulation implications for system operators.
This paper proposes a structure to produce rail- and bus-based transit
mode definitions and typology that are appropriate for modern use. A
decision tree is used to classify and define the transit modes as
guided-bus, trolley-bus, light rail and tram-train and is provided with
example systems. The paper provides a robust definitional framework that
allows transit system promoters, operators and other interested parties to
have a consistent basis of reference when specifying and comparing rapid
transit systems.
Journal: Transportation Planning and Technology
Pages: 367-384
Issue: 4
Volume: 33
Year: 2010
Month: 5
X-DOI: 10.1080/03081060.2010.494029
File-URL: http://hdl.handle.net/10.1080/03081060.2010.494029
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:4:p:367-384
Template-Type: ReDIF-Article 1.0
Author-Name: George Yannis
Author-X-Name-First: George
Author-X-Name-Last: Yannis
Author-Name: Eleonora Papadimitriou
Author-X-Name-First: Eleonora
Author-X-Name-Last: Papadimitriou
Author-Name: Xenia Karekla
Author-X-Name-First: Xenia
Author-X-Name-Last: Karekla
Author-Name: Efrosyni Kontodima
Author-X-Name-First: Efrosyni
Author-X-Name-Last: Kontodima
Title: Mobile phone use by young drivers: effects on traffic speed and headways
Abstract:
Abstract This paper investigates the effects of mobile
phone use while driving on traffic speed and headways, with particular
focus on young drivers. For this purpose, a field survey was carried out
in real road traffic conditions, in which drivers' speeds and headways
were measured while using or not using a mobile phone. The survey took
place within a University Campus area, allowing to distinguish between
settings approximating to either free flow or interrupted flow conditions.
Linear and loglinear regression methods were used to investigate the
effects of mobile phone use and several other young driver
characteristics, such as gender, driving experience and annual distance
travelled, on vehicle speeds and headways. Separate models were developed
for average free flow, interrupted flow, as well as for total average
speed. Results show that mobile phone use leads to a statistically
significant reduction in traffic speeds of young drivers in all types of
traffic conditions. Furthermore, male and female drivers reduce their
speed similarly when using a mobile phone while driving. However, male
drivers using their mobile phone drive at lower speeds than female drivers
not using their mobile phones. Sensitivity analysis revealed that, among
all explanatory variables, the effect of mobile phone use on speed was
most important. Accordingly, vehicle headways appear to increase for
drivers using their mobile phone. However, this effect could not be
statistically validated, due to the strong correlation between speed and
headway.
Journal: Transportation Planning and Technology
Pages: 385-394
Issue: 4
Volume: 33
Year: 2010
Month: 5
X-DOI: 10.1080/03081060.2010.494030
File-URL: http://hdl.handle.net/10.1080/03081060.2010.494030
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:4:p:385-394
Template-Type: ReDIF-Article 1.0
Author-Name: Pei-Chun Lin
Author-X-Name-First: Pei-Chun
Author-X-Name-Last: Lin
Author-Name: Tai Chiu Edwin Cheng
Author-X-Name-First: Tai Chiu Edwin
Author-X-Name-Last: Cheng
Author-Name: Juo-Yi Chang
Author-X-Name-First: Juo-Yi
Author-X-Name-Last: Chang
Author-Name: Jenhung Wang
Author-X-Name-First: Jenhung
Author-X-Name-Last: Wang
Title: Optimal tank-trailer routing using the ILOG constraint programming -- a Taiwan case study
Abstract:
Abstract This paper investigates the routing of
pressurized tank trailers and proposes a scheduling plan which ensures the
practical delivery of industrial gases under the objective of reducing
transportation costs. Using constraint programming, we solve a
combinatorial optimization problem that incorporates both hard and soft
constraints for routing and scheduling tank trailers. Hard constraints are
resource and safety/regulation constraints, whereas soft constraints are
utilization and efficiency constraints. This approach enables tank-trailer
routing and scheduling management to consider different combinations of
parameters and view the results in ‘real-time.’ The routing
and scheduling results based on a case study in Taiwan fulfil the goals of
avoiding risks associated with transporting industrial gases, and
attaining efficient delivery while conforming to regulations and
consistent with good business practice. The results also suggest that
significant economies in distribution costs are possible.
Journal: Transportation Planning and Technology
Pages: 395-406
Issue: 4
Volume: 33
Year: 2010
Month: 5
X-DOI: 10.1080/03081060.2010.494031
File-URL: http://hdl.handle.net/10.1080/03081060.2010.494031
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:4:p:395-406
Template-Type: ReDIF-Article 1.0
Author-Name: Zheng Li
Author-X-Name-First: Zheng
Author-X-Name-Last: Li
Author-Name: John M. Rose
Author-X-Name-First: John M.
Author-X-Name-Last: Rose
Author-Name: David Hensher
Author-X-Name-First: David
Author-X-Name-Last: Hensher
Title: Forecasting petrol demand and assessing the impact of selective strategies to reduce fuel consumption
Abstract:
Abstract The use of fossil fuels in transportation is an
important topic as a result of growing concerns over global warming.
Automobile petrol demand has been of particular interest to researchers
and policy-makers, given that the automobile is a major contributor to the
enhanced greenhouse effect. This paper forecasts Australia's automobile
petrol demand up to the year 2020 based on the best performing forecasting
model selected out of eight models. In order to establish ways to reduce
the demand for petrol, and the consequent by-product of reducing the
amount of greenhouse gas emissions, we have estimated the impact on
CO2 for several potential policy instruments, using
Transportation and Environment Strategy Impact Simulator (an integrated
transport, land use and environmental strategy impact simulation
programme). We find that a carbon tax of AU$0.50/kg can reduce automobile
kilometres by 5.9%, resulting in reduced demand for petrol and a reduction
in CO2 of 1.5%.
Journal: Transportation Planning and Technology
Pages: 407-421
Issue: 5
Volume: 33
Year: 2010
Month: 6
X-DOI: 10.1080/03081060.2010.502373
File-URL: http://hdl.handle.net/10.1080/03081060.2010.502373
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:5:p:407-421
Template-Type: ReDIF-Article 1.0
Author-Name: Ergün Eraslan
Author-X-Name-First: Ergün
Author-X-Name-Last: Eraslan
Author-Name: Tusan Derya
Author-X-Name-First: Tusan
Author-X-Name-Last: Derya
Title: Daily newspaper distribution planning with integer programming: an application in Turkey
Abstract:
Abstract This paper concerns the newspaper distribution
problem. It addresses the transportation of newspapers from printing plant
to newsagents with distribution vehicles under various particular
constraints. The objective is to minimize the distance traveled by the
vehicles and/or the number of vehicles. In this study, the routes for
vehicles of a leading newspaper distributor company in the Turkish press
sector are examined. The problem is defined as determining optimal
delivery routes for a fleet of homogeneous vehicles, starting and ending
at the printing plant that is required to serve a number of geographically
dispersed newsagents with known demands under capacity and time
constraints, while minimizing the total distribution cost. An integar
linear programming model is proposed as a solution using Cplex.
Computational results demonstrate that the proposed model is fast and able
to find optimal solutions for problem scenarios with up to 55 newsagents
within reasonable computing times. It was found that the proposed model
reduced the delivery cost by 21% on average when compared to the current
manual method. The results show that this model is adequate for
medium-sized distribution problems.
Journal: Transportation Planning and Technology
Pages: 423-433
Issue: 5
Volume: 33
Year: 2010
Month: 6
X-DOI: 10.1080/03081060.2010.502374
File-URL: http://hdl.handle.net/10.1080/03081060.2010.502374
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:5:p:423-433
Template-Type: ReDIF-Article 1.0
Author-Name: P. Simões
Author-X-Name-First: P.
Author-X-Name-Last: Simões
Author-Name: R.C. Marques
Author-X-Name-First: R.C.
Author-X-Name-Last: Marques
Title: Seaport performance analysis using robust non-parametric efficiency estimators
Abstract:
Abstract Seaport services have been developing year on
year, playing an increasingly important role in the economy and the
transportation markets of each country. This increases interest in
measuring their performance. This paper evaluates the performance of a set
of European seaports by means of robust non-parametric approaches. Using
order-m and bootstrap procedures, the major problems of
traditional data envelopment analysis and free disposal hull methods --
concerning noise, presence of outliers and the ‘curse of
dimensionality’ -- are overcome. With this study considerable
levels of inefficiency were found in the European seaports sector.
Journal: Transportation Planning and Technology
Pages: 435-451
Issue: 5
Volume: 33
Year: 2010
Month: 6
X-DOI: 10.1080/03081060.2010.502375
File-URL: http://hdl.handle.net/10.1080/03081060.2010.502375
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:5:p:435-451
Template-Type: ReDIF-Article 1.0
Author-Name: Samia Islam
Author-X-Name-First: Samia
Author-X-Name-Last: Islam
Title: An examination of the differential impact of highway capital investment on economically disparate Appalachian counties in the USA
Abstract:
Abstract The economic performance of Appalachian counties
in the USA varies substantially across the region. The Appalachian
Regional Commission has divided the 410 counties into four major
categories: distressed, transitional, competitive, and attainment. This
paper applies spatial models that account for spatial interdependence to
evaluate the impact of Appalachian highways on economically disparate
counties. Using a spatial autoregressive model in a production function
framework, it is found that distressed counties gain from highways whereas
competitive counties actually suffer from a negative backwash effect that
tends to draw productive activity away from these counties into
neighboring counties.
Journal: Transportation Planning and Technology
Pages: 453-464
Issue: 5
Volume: 33
Year: 2010
Month: 6
X-DOI: 10.1080/03081060.2010.502376
File-URL: http://hdl.handle.net/10.1080/03081060.2010.502376
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:5:p:453-464
Template-Type: ReDIF-Article 1.0
Author-Name: Catherine Morency
Author-X-Name-First: Catherine
Author-X-Name-Last: Morency
Author-Name: Martin Trépanier
Author-X-Name-First: Martin
Author-X-Name-Last: Trépanier
Author-Name: Daniel Piché
Author-X-Name-First: Daniel
Author-X-Name-Last: Piché
Author-Name: Robert Chapleau
Author-X-Name-First: Robert
Author-X-Name-Last: Chapleau
Title: Bridging the gap between complex data and decision-makers: an example of an innovative interactive tool
Abstract:
Abstract The increasing capacity of technological tools,
as well as the advent of geographic information systems, has multiplied
the ability to process large sets of microdata. At the same time, modeling
concerns and the quest for a more in-depth understanding of individual
behaviors is requiring more, and better, data. The gap between scientific
modeling and informational tools for decision-making seems to be widening.
In the Greater Montreal area, large sets of microdata have been available
for more than 30 years. Along with the development of modeling and
planning tools, particular attention has been given to the continuous
enlightening of planners and decision-makers with respect to the outcomes
of the various surveys. This has led to the development of particular
interactive tools, specifically addressed at local planners, which present
the most significant information regarding travel and demography, for
geopolitically relevant areas. This paper presents the most recent
interactive tool that has been developed for local planners in the
Montreal area. It integrates information from both the most recent travel
survey held in the region and the Canadian census. It offers both ease of
use and relevant analytical means to assist in exploring the complex
relations between spatial locations, demographic features, and
activity-travel indicators.
Journal: Transportation Planning and Technology
Pages: 465-479
Issue: 6
Volume: 33
Year: 2010
Month: 6
X-DOI: 10.1080/03081060.2010.505046
File-URL: http://hdl.handle.net/10.1080/03081060.2010.505046
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:33:y:2010:i:6:p:465-479
Template-Type: ReDIF-Article 1.0
Author-Name: Milica Šelmić
Author-X-Name-First: Milica
Author-X-Name-Last: Šelmić
Author-Name: Dušan Teodorović
Author-X-Name-First: Dušan
Author-X-Name-Last: Teodorović
Author-Name: Katarina Vukadinović
Author-X-Name-First: Katarina
Author-X-Name-Last: Vukadinović
Title: Locating inspection facilities in traffic networks: an artificial intelligence approach
Abstract:
Abstract In order for traffic authorities to attempt to
prevent drink driving, check truck weight limits, driver hours and service
regulations, hazardous leaks from trucks, and vehicle equipment safety, we
need to find answers to the following questions: (a) What should be the
total number of inspection stations in the traffic network? and (b) Where
should these facilities be located? This paper develops a model to
determine the locations of uncapacitated inspection stations in a traffic
network. We analyze two different model formulations: a single-objective
optimization problem and a multi-objective optimization problem. The
problems are solved by the Bee Colony Optimization (BCO) method. The BCO
algorithm belongs to the class of stochastic swarm optimization methods,
inspired by the foraging habits of bees in the natural environment. The
BCO algorithm is able to obtain the optimal value of objective functions
in all test problems. The CPU times required to find the best solutions by
the BCO are found to be acceptable.
Journal: Transportation Planning and Technology
Pages: 481-493
Issue: 6
Volume: 33
Year: 2010
Month: 6
X-DOI: 10.1080/03081060.2010.505047
File-URL: http://hdl.handle.net/10.1080/03081060.2010.505047
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Handle: RePEc:taf:transp:v:33:y:2010:i:6:p:481-493
Template-Type: ReDIF-Article 1.0
Author-Name: Steven Chien
Author-X-Name-First: Steven
Author-X-Name-Last: Chien
Author-Name: Jongho Byun
Author-X-Name-First: Jongho
Author-X-Name-Last: Byun
Author-Name: Athanassios Bladikas
Author-X-Name-First: Athanassios
Author-X-Name-Last: Bladikas
Title: Optimal stop spacing and headway of congested transit system considering realistic wait times
Abstract:
Abstract This paper revisits the classical transit
scheduling problem and investigates the relationship between stop spacing
and headway, considering realistic wait time and operable transit
capacity. Headway and stop spacing are important determinants for planning
a transit system, which influence the service level as well as the cost of
operation. A mathematical model is developed, and the objective function
is user travel time which is minimized by the optimized stop spacing and
headway, subject to the constraints of operable fleet size and route
capacity. Optimal stop spacing and headway solutions are obtained in a
numerical example. Sensitivity analysis is conducted, and the effect of
model parameters on user travel time is explored.
Journal: Transportation Planning and Technology
Pages: 495-513
Issue: 6
Volume: 33
Year: 2010
Month: 6
X-DOI: 10.1080/03081060.2010.505048
File-URL: http://hdl.handle.net/10.1080/03081060.2010.505048
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Handle: RePEc:taf:transp:v:33:y:2010:i:6:p:495-513
Template-Type: ReDIF-Article 1.0
Author-Name: Gonçalo Correia
Author-X-Name-First: Gonçalo
Author-X-Name-Last: Correia
Author-Name: José Manuel Viegas
Author-X-Name-First: José Manuel
Author-X-Name-Last: Viegas
Title: Applying a structured simulation-based methodology to assess carpooling time--space potential
Abstract:
Abstract Increasing urban traffic congestion calls for the
study of alternative measures. One such measure is carpooling, a system in
which a person shares his private vehicle with one or more people in a
commuter trip. In principle, this system could lead to potentially
significant reductions in the use of private vehicles; however, in
practice it has achieved limited success. In this paper, we apply a
simulation-based methodology that uses aggregated data from commuter trips
in an urban area to create compatible and feasible random trips. These are
then analyzed through a heuristic process recursively to find grouping
possibilities, thus producing indicators of carpooling potential such as
the percentage of matched trips. Using this methodology, simulations are
run for the Lisbon Metropolitan Area (Portugal) and results show that an
increase in the number of participants in a carpooling scheme will only
increase the probability of matching up to a certain point, and that this
probability varies significantly with time--space trip attributes.
Journal: Transportation Planning and Technology
Pages: 515-540
Issue: 6
Volume: 33
Year: 2010
Month: 6
X-DOI: 10.1080/03081060.2010.505053
File-URL: http://hdl.handle.net/10.1080/03081060.2010.505053
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Handle: RePEc:taf:transp:v:33:y:2010:i:6:p:515-540
Template-Type: ReDIF-Article 1.0
Author-Name: Guihua Wang
Author-X-Name-First: Guihua
Author-X-Name-Last: Wang
Title: The role of light duty vehicles in future air pollution: a case study of Sacramento
Abstract:
Abstract On-road light-duty vehicles (LDVs) play an
important role in contributing to urban air pollution. Although vehicles
are getting cleaner, regional growth in vehicle population and vehicle
miles traveled would somewhat offset California's efforts in
transportation pollution reduction. To better understand the role of LDVs
in future air pollution, we conduct a case study for Sacramento,
California, and investigate future trends in urban air pollution
attributable to the light-duty fleet. Results indicate that ambient
concentrations of CO, NO x , and total organic
gases (TOGs) caused by future light-duty fleets would dramatically
decrease over coming years. The resulting concentrations in 2030 might be
as low as approximately 20% of the 2005 concentrations. These reflect the
improvements in vehicle/fuel technologies and standards in California.
However, the future particulate matter (PM10) pollution could
be slightly worse than that caused by the 2005 fleet. This is a result of
the growing fleet-average emission factors of particulates from 2005 to
2030. For purposes of future particulate control, more attention needs to
be paid to LDVs, besides heavy-duty vehicles.
Journal: Transportation Planning and Technology
Pages: 541-549
Issue: 6
Volume: 33
Year: 2010
Month: 6
X-DOI: 10.1080/03081060.2010.505056
File-URL: http://hdl.handle.net/10.1080/03081060.2010.505056
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Handle: RePEc:taf:transp:v:33:y:2010:i:6:p:541-549
Template-Type: ReDIF-Article 1.0
Author-Name: Hans Huber
Author-X-Name-First: Hans
Author-X-Name-Last: Huber
Title: Statistical mechanics for analytic planning: an application to domestic air traffic in China
Abstract:
Abstract Statistical mechanics has shown its usefulness
when assessing the topology of many networks, including those of
infrastructure. Its principles take into account the large-scale and
network-wide effects of changes in its key parameters, which in turn may
provide critical input when planning for infrastructure projects. One
objective would be to modify the pattern of capacity expansions inside a
system to make it less exposed to local shortfalls in demand. To
illustrate our point, we shall use domestic air traffic in China; airports
are spatially distributed and they also need to respond to the potential
demand that they face locally. Airlines that control parts of the traffic
system are identified as agents. A relationship between the agent's
behavior and the system-wide level of variance in traffic flows can be
established by regression analysis. It is shown how intervention on these
agents would reduce negative traffic variance while enhancing a more
balanced, less costly growth of the system itself.
Journal: Transportation Planning and Technology
Pages: 551-567
Issue: 7
Volume: 33
Year: 2010
Month: 7
X-DOI: 10.1080/03081060.2010.512214
File-URL: http://hdl.handle.net/10.1080/03081060.2010.512214
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Handle: RePEc:taf:transp:v:33:y:2010:i:7:p:551-567
Template-Type: ReDIF-Article 1.0
Author-Name: Elton Fernandes
Author-X-Name-First: Elton
Author-X-Name-Last: Fernandes
Author-Name: Ricardo Rodrigues Pacheco
Author-X-Name-First: Ricardo Rodrigues
Author-X-Name-Last: Pacheco
Title: The causal relationship between GDP and domestic air passenger traffic in Brazil
Abstract:
Abstract This paper examines the causal relationship
between economic growth and domestic air passenger transport in Brazil,
using Granger's causality test. Total domestic passenger-kilometres are
used as a proxy for air transport demand and gross domestic product as a
proxy for economic growth. The test spans the period from 1966 to 2006.
The results lead to the acceptance of the hypothesis that there is a
unidirectional Granger causal relationship from economic growth to
domestic air transport demand in Brazil, having a high elasticity in the
short term.
Journal: Transportation Planning and Technology
Pages: 569-581
Issue: 7
Volume: 33
Year: 2010
Month: 7
X-DOI: 10.1080/03081060.2010.512217
File-URL: http://hdl.handle.net/10.1080/03081060.2010.512217
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Handle: RePEc:taf:transp:v:33:y:2010:i:7:p:569-581
Template-Type: ReDIF-Article 1.0
Author-Name: Xueming Chen
Author-X-Name-First: Xueming
Author-X-Name-Last: Chen
Title: Retrospect and prospect for subarea travel demand modeling: an empirical study
Abstract:
Abstract At present, customized subarea models have been
widely used in local transportation planning throughout the USA. A subarea
model's biggest strengths lie in its more detailed and accurate modeling
outputs which better meet local planning requirements. In addition, a
subarea model can substantially reduce database size and model running
time. In spite of these advantages, subarea models remain quite weak in
modeling transit projects, smart growth measures, air quality conformity,
and other areas. In addition to evaluating subarea models, this paper uses
the Irvine Transportation Analysis Model (ITAM) as an empirical case of
subarea model to illustrate the remedial procedures in maintaining its
consistency with the regional model of the Orange County Transportation
Analysis Model (OCTAM). Looking into the future, subarea models face both
opportunities and challenges. More GIS applications, travel surveys,
micro-simulation software utilization, and modeling improvements are
expected to be incorporated into the subarea modeling process.
Journal: Transportation Planning and Technology
Pages: 583-603
Issue: 7
Volume: 33
Year: 2010
Month: 7
X-DOI: 10.1080/03081060.2010.512219
File-URL: http://hdl.handle.net/10.1080/03081060.2010.512219
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Handle: RePEc:taf:transp:v:33:y:2010:i:7:p:583-603
Template-Type: ReDIF-Article 1.0
Author-Name: Steven I.-Jy Chien
Author-X-Name-First: Steven I.-Jy
Author-X-Name-Last: Chien
Author-Name: Yavuz Y. Ulusoy
Author-X-Name-First: Yavuz Y.
Author-X-Name-Last: Ulusoy
Author-Name: Chien-Hung Wei
Author-X-Name-First: Chien-Hung
Author-X-Name-Last: Wei
Title: Integrated transit services for minimum cost operation considering heterogeneous demand
Abstract:
Abstract In large metropolitan areas, public transit is a
major mode choice of commuters for their daily travel, which has an
important role in relieving congestion on transportation corridors. The
purpose of this study is to develop a model which optimizes service
patterns (SPs) and frequencies that yield minimum cost transit operation.
Considering a general transit route with given stops and
origin-destination demand, the proposed model consists of an objective
total cost function and a set of constraints to ensure frequency
conservation and sufficient capacity subject to operable fleet size. A
numerical example is provided to demonstrate the effectiveness of the
developed model, in which the demand and facility data of a rail transit
route were given. Results show that the proposed model can be applied to
optimize integrated SPs and headways that significantly reduce the total
cost, while the resulting performance indicators are generated.
Journal: Transportation Planning and Technology
Pages: 605-624
Issue: 7
Volume: 33
Year: 2010
Month: 7
X-DOI: 10.1080/03081060.2010.512222
File-URL: http://hdl.handle.net/10.1080/03081060.2010.512222
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Handle: RePEc:taf:transp:v:33:y:2010:i:7:p:605-624
Template-Type: ReDIF-Article 1.0
Author-Name: Nam H. Vu
Author-X-Name-First: Nam H.
Author-X-Name-Last: Vu
Author-Name: Ata M. Khan
Author-X-Name-First: Ata M.
Author-X-Name-Last: Khan
Title: Bus running time prediction using a statistical pattern recognition technique
Abstract:
Abstract Given that real-time bus arrival information is
viewed positively by passengers of public transit, it is useful to enhance
the methodological basis for improving predictions. Specifically, data
captured and communicated by intelligent systems are to be supplemented by
reliable predictive travel time. This paper reports a model for real-time
prediction of urban bus running time that is based on statistical pattern
recognition technique, namely locally weighted scatter smoothing. Given a
pattern that characterizes the conditions for which bus running time is
being predicted, the trained model automatically searches through the
historical patterns which are the most similar to the current pattern and
on that basis, the prediction is made. For training and testing of the
methodology, data retrieved from the automatic vehicle location and
automatic passenger counter systems of OC Transpo
(Ottawa, Canada) were used. A comparison with other methodologies shows
enhanced predictive capability.
Journal: Transportation Planning and Technology
Pages: 625-642
Issue: 7
Volume: 33
Year: 2010
Month: 7
X-DOI: 10.1080/03081060.2010.512225
File-URL: http://hdl.handle.net/10.1080/03081060.2010.512225
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Handle: RePEc:taf:transp:v:33:y:2010:i:7:p:625-642
Template-Type: ReDIF-Article 1.0
Author-Name: Eric J. Gonzales
Author-X-Name-First: Eric J.
Author-X-Name-Last: Gonzales
Author-Name: Nikolas Geroliminis
Author-X-Name-First: Nikolas
Author-X-Name-Last: Geroliminis
Author-Name: Michael J. Cassidy
Author-X-Name-First: Michael J.
Author-X-Name-Last: Cassidy
Author-Name: Carlos F. Daganzo
Author-X-Name-First: Carlos F.
Author-X-Name-Last: Daganzo
Title: On the allocation of city space to multiple transport modes
Abstract:
Abstract This paper analyzes urban multimodal
transportation systems in an aggregated way. To describe the aggregate
behavior of traffic in cities, use is made of an idea that is now
receiving some attention: the macroscopic fundamental diagram (MFD). We
demonstrate through simulation how the MFD can be used to monitor and
control a real network, in this case a portion of San Francisco, using
readily available input data. We then show how different modes interact on
the same network and discuss how these interactions might be incorporated
into an MFD for multimodal networks. The work unveils two main results:
first, it confirms recent results showing that restricting access to a
city's congested areas can improve mobility for all travelers, including
those who endure the restrictions; and second, that dedicating street
space to collective transport modes can improve accessibility for all
modes, even those from which space is taken away.
Journal: Transportation Planning and Technology
Pages: 643-656
Issue: 8
Volume: 33
Year: 2010
Month: 9
X-DOI: 10.1080/03081060.2010.527171
File-URL: http://hdl.handle.net/10.1080/03081060.2010.527171
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Handle: RePEc:taf:transp:v:33:y:2010:i:8:p:643-656
Template-Type: ReDIF-Article 1.0
Author-Name: Gan Hong-cheng
Author-X-Name-First: Gan
Author-X-Name-Last: Hong-cheng
Author-Name: Ye Xin
Author-X-Name-First: Ye
Author-X-Name-Last: Xin
Author-Name: Wang Qing
Author-X-Name-First: Wang
Author-X-Name-Last: Qing
Title: Investigating the effect of travel time variability on drivers' route choice decisions in Shanghai, China
Abstract:
Abstract This paper investigates the effect of travel time
variability on drivers' route choice behavior in the context of Shanghai,
China. A stated preference survey is conducted to collect drivers'
hypothetical choice between two alternative routes with designated unequal
travel time and travel time variability. A binary choice model is
developed to quantify trade-offs between travel time and travel time
variability across various types of drivers. In the model, travel time and
travel time variability are, respectively, measured by expectation and
standard deviation of random travel time. The model shows that travel time
and travel time variability on a route exert similarly negative effects on
drivers' route choice behavior. In particular, it is found that middle-age
drivers are more sensitive to travel time variability and less likely to
choose a route with travel time uncertainty than younger and elder
drivers. In addition, it is shown that taxi drivers are more sensitive to
travel time and more inclined to choose a route with less travel time.
Drivers with rich driving experience are less likely to choose a route
with travel time uncertainty.
Journal: Transportation Planning and Technology
Pages: 657-669
Issue: 8
Volume: 33
Year: 2010
Month: 9
X-DOI: 10.1080/03081060.2010.527172
File-URL: http://hdl.handle.net/10.1080/03081060.2010.527172
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Handle: RePEc:taf:transp:v:33:y:2010:i:8:p:657-669
Template-Type: ReDIF-Article 1.0
Author-Name: David C. Broadstock
Author-X-Name-First: David C.
Author-X-Name-Last: Broadstock
Author-Name: Alan Collins
Author-X-Name-First: Alan
Author-X-Name-Last: Collins
Author-Name: Lester C. Hunt
Author-X-Name-First: Lester C.
Author-X-Name-Last: Hunt
Title: Modelling car trip generations for UK residential developments using data from TRICS
Abstract:
Abstract This paper models trip generation for a
cross-section of residential developments around the UK. Consistent with
recent literature, the empirical model tests whether trip making patterns
for residential developments are independent of car ownership and finds
that trip generation is dependent upon car ownership socio-economic
factors and site-specific characteristics, in particular land-zone type
(e.g. town centre, out of town, etc.). However, public transport services
are not found to have a significant relationship with trip generation;
consequently, a policy implication of the results is that increasing bus
services to residential developments is not associated with a reduction in
generated trips.
Journal: Transportation Planning and Technology
Pages: 671-678
Issue: 8
Volume: 33
Year: 2010
Month: 9
X-DOI: 10.1080/03081060.2010.527175
File-URL: http://hdl.handle.net/10.1080/03081060.2010.527175
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Handle: RePEc:taf:transp:v:33:y:2010:i:8:p:671-678
Template-Type: ReDIF-Article 1.0
Author-Name: Michael J. Clay
Author-X-Name-First: Michael J.
Author-X-Name-Last: Clay
Title: Developing an integrated land-use/transportation model for small to medium-sized cities: case study of Montgomery, Alabama
Abstract:
Abstract Many large cities and regions are currently
developing integrated land-use and transportation models for the first
time. They are doing so in response to needs expressed by their
constituents and to shifts in national policy that require consistency
between local land-use plans and regional transportation plans. In
addition, these models offer the ability to conduct a wide variety of
scenario testing for both infrastructure and policy alternatives. The
magnitude of commitment in both human and financial resources to develop
these integrated models has typically been large, which has hitherto
limited the application of these models to larger cities and regions. The
purpose of this paper is to present the integrated land-use and transport
model development project being undertaken by the Montgomery, Alabama,
Area Metropolitan Planning Organization (MPO, regional pop. ~300,000) as a
case study for other small to medium-sized MPOs interested in developing
one of these modeling systems. Several items of broad interest are
presented, including the model selection process and criteria, a
description of an ‘Agile’ iterative development process, a
set of data requirements and how these data were obtained, a description
of the model calibration process, and conclusions and recommendations for
other cities and regions seeking to replicate this process.
Journal: Transportation Planning and Technology
Pages: 679-693
Issue: 8
Volume: 33
Year: 2010
Month: 9
X-DOI: 10.1080/03081060.2010.527178
File-URL: http://hdl.handle.net/10.1080/03081060.2010.527178
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Handle: RePEc:taf:transp:v:33:y:2010:i:8:p:679-693
Template-Type: ReDIF-Article 1.0
Author-Name: P. Morales-Fusco
Author-X-Name-First: P.
Author-X-Name-Last: Morales-Fusco
Author-Name: S. Saurí
Author-X-Name-First: S.
Author-X-Name-Last: Saurí
Author-Name: B. Spuch
Author-X-Name-First: B.
Author-X-Name-Last: Spuch
Title: Quality indicators and capacity calculation for RoRo terminals
Abstract:
Abstract Road freight transportation has increased
dramatically over recent years along with its impacts such as congestion,
noise, and pollution. As a result, European and US governments have
started policies to promote alternatives to road transportation, such as
logistic chains containing a Short Sea Shipping (SSS) link. Road is, by
definition, a more flexible means of transportation than shipping, which
is usually cheaper. Therefore, to move traffic to SSS chains, it is
necessary to provide fast, frequent, and reliable maritime transportation.
In this sense, roll-on/roll-off (RoRo) vessels are the most convenient
ships to be used, since they have smaller dwell times in port and,
therefore, this is a kind of traffic likely to increase dramatically. The
foreseeable increase of this kind of traffic must meet with an increase in
the actual capacity by means of either improvement in performance and
possible enlargements of existing terminals or the construction of new
terminals. In that sense, this paper proposes a simple methodology to
calculate the capacity of a RoRo terminal, whether already in operation or
during its design process, and relate it to some quality standards by
means of quality indicators, which should lead to the definition of Levels
of Service similar to those already used in roads and airports. The paper
ends by applying the methodology to a real terminal in Barcelona, Spain.
Journal: Transportation Planning and Technology
Pages: 695-717
Issue: 8
Volume: 33
Year: 2010
Month: 9
X-DOI: 10.1080/03081060.2010.527179
File-URL: http://hdl.handle.net/10.1080/03081060.2010.527179
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Handle: RePEc:taf:transp:v:33:y:2010:i:8:p:695-717
Template-Type: ReDIF-Article 1.0
Author-Name: Steve Engelen
Author-X-Name-First: Steve
Author-X-Name-Last: Engelen
Author-Name: Wout Dullaert
Author-X-Name-First: Wout
Author-X-Name-Last: Dullaert
Title: Designing a decision support model for the LNG market
Abstract:
Abstract As the Liquefied Natural Gas (LNG) market is
supply-driven and subject to long-term contracts, both liquefaction
companies and shipowners need to make strategic decisions on fleet
chartering requirements. These planning decisions become ever more
difficult in light of the transformations permeating the LNG market,
propelling into a more competitive market with more flexible trades and
expanding spot markets. The overcapacity of LNG ships during 2008--2009
triggered by massive overcontracting is a good case in point where the use
of decision support models would have been beneficial, especially
considering the fortunes and risks at stake. In this paper we present an
LNG shipping model that effectively supports decision-making in practice.
To demonstrate the value added of the model, we study the implications of
LNG project delays and increased decommissioning of ships with respect to
market balance and fleet requirements.
Journal: Transportation Planning and Technology
Pages: 719-731
Issue: 8
Volume: 33
Year: 2010
Month: 9
X-DOI: 10.1080/03081060.2010.527183
File-URL: http://hdl.handle.net/10.1080/03081060.2010.527183
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:8:p:719-731
Template-Type: ReDIF-Article 1.0
Author-Name: P.E. Canning
Author-X-Name-First: P.E.
Author-X-Name-Last: Canning
Author-Name: S.J. Hughes
Author-X-Name-First: S.J.
Author-X-Name-Last: Hughes
Author-Name: E.E. Hellawell
Author-X-Name-First: E.E.
Author-X-Name-Last: Hellawell
Author-Name: B.C.M. Gatersleben
Author-X-Name-First: B.C.M.
Author-X-Name-Last: Gatersleben
Author-Name: C.J. Fairhead
Author-X-Name-First: C.J.
Author-X-Name-Last: Fairhead
Title: Reasons for participating in formal employer-led carpool schemes as perceived by their users
Abstract:
Abstract Carpooling, the process by which individuals
share a private vehicle for a particular journey or journeys, has been
undertaken both formally and informally for a great number of years. A
variety of computational methods for undertaking the
‘ride-matching’ element for the formation of carpools have
been developed and subsequently made into integrated tools to allow the
formation of multiple carpools. Such tools are commonly used by both Local
Authorities and employers who are looking to establish and operate their
own formal carpool scheme, increasingly using a web-based interface. The
aim of this paper is to understand how users enrolled with employer-led
carpool schemes perceive the importance of several different factors in
their decision to participate. It is a further aim to determine the
importance they attach to employer provided priority parking spaces. A
survey-based approach investigates the perceptions of users from six
different employer operated carpool schemes in the UK. The paper suggests
that saving money was perceived as the most important reason for an
individual's decision to use a formal employer-led carpool scheme -- even
amongst carpool schemes where the employer provides significant incentives
to participate. No regular access to their own vehicle and ‘more
sociable travel’ were generally perceived as less important reasons
to participate. For employers who offer priority parking to carpoolers,
this was generally valued as important by participants, even when the
employment location did not have significant parking pressures.
Journal: Transportation Planning and Technology
Pages: 733-745
Issue: 8
Volume: 33
Year: 2010
Month: 10
X-DOI: 10.1080/03081060.2010.536627
File-URL: http://hdl.handle.net/10.1080/03081060.2010.536627
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Handle: RePEc:taf:transp:v:33:y:2010:i:8:p:733-745
Template-Type: ReDIF-Article 1.0
Author-Name: Hyunmyung Kim
Author-X-Name-First: Hyunmyung
Author-X-Name-Last: Kim
Author-Name: R. Jayakrishnan
Author-X-Name-First: R.
Author-X-Name-Last: Jayakrishnan
Title: The estimation of a time-dependent OD trip table with vehicle trajectory samples
Abstract:
Abstract In this paper we discuss a dynamic
origin--destination (OD) estimation problem that has been used for
identifying time-dependent travel demand on a road network. Even though a
dynamic OD table is an indispensable data input for executing a dynamic
traffic assignment, it is difficult to construct using the conventional OD
construction method such as the four-step model. For this reason, a direct
estimation method based on field traffic data such as link traffic counts
has been used. However, the method does not account for a logical
relationship between a travel demand pattern and socioeconomic attributes.
In addition, the OD estimation method cannot guarantee the reliability of
estimated results since the OD estimation problem has a property named the
‘underdetermined problem.’ In order to overcome such a
problem, the method developed in this paper makes use of vehicle
trajectory samples with link traffic counts. The new method is applied to
numerical examples and shows promising capability for identifying a
temporal and spatial travel demand pattern.
Journal: Transportation Planning and Technology
Pages: 747-768
Issue: 8
Volume: 33
Year: 2010
Month: 10
X-DOI: 10.1080/03081060.2010.536629
File-URL: http://hdl.handle.net/10.1080/03081060.2010.536629
File-Format: text/html
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Handle: RePEc:taf:transp:v:33:y:2010:i:8:p:747-768
Template-Type: ReDIF-Article 1.0
Author-Name: Stephen Ison
Author-X-Name-First: Stephen
Author-X-Name-Last: Ison
Author-Name: Jon Shaw
Author-X-Name-First: Jon
Author-X-Name-Last: Shaw
Title: Universities' Transport Studies Group UK Annual Conference 2010
Journal: Transportation Planning and Technology
Pages: 1-2
Issue: 1
Volume: 34
Year: 2011
Month: 2
X-DOI: 10.1080/03081060.2011.534603
File-URL: http://hdl.handle.net/10.1080/03081060.2011.534603
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Handle: RePEc:taf:transp:v:34:y:2011:i:1:p:1-2
Template-Type: ReDIF-Article 1.0
Author-Name: R.E. Wilson
Author-X-Name-First: R.E.
Author-X-Name-Last: Wilson
Author-Name: J.A. Ward
Author-X-Name-First: J.A.
Author-X-Name-Last: Ward
Title: Car-following models: fifty years of linear stability analysis -- a mathematical perspective
Abstract:
Abstract A general framework for car-following models is
developed and its linear stability properties are analysed. The concepts
of uniform flow, platoon stability and string stability are introduced and
criteria which test for them are developed. Finally, string instability is
divided into absolute, convective upstream and convective downstream
sub-classes, and a procedure is developed to distinguish between them.
Journal: Transportation Planning and Technology
Pages: 3-18
Issue: 1
Volume: 34
Year: 2010
Month: 7
X-DOI: 10.1080/03081060.2011.530826
File-URL: http://hdl.handle.net/10.1080/03081060.2011.530826
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Handle: RePEc:taf:transp:v:34:y:2010:i:1:p:3-18
Template-Type: ReDIF-Article 1.0
Author-Name: Lucy Budd
Author-X-Name-First: Lucy
Author-X-Name-Last: Budd
Author-Name: Adam Warren
Author-X-Name-First: Adam
Author-X-Name-Last: Warren
Author-Name: Morag Bell
Author-X-Name-First: Morag
Author-X-Name-Last: Bell
Title: Safeguarding public health at UK airports: an examination of current health security practices
Abstract:
Abstract In response to the H1N1 influenza outbreak and
the role of air travel in facilitating the virus's rapid spread around the
world, this paper contributes to debates concerning the governance of
commercial aviation and infectious disease by examining the role of the
Port Health Regulations and associated health security practices that are
enacted at UK airports. Drawing on extensive action research and in-depth
interviews that were conducted with key stakeholders in the aviation and
health care sectors (including airport managers,
‘front-line’ customer-facing airline staff and public health
clinicians) during the spring and early summer of 2009, we chart the
development of sanitary regulations at UK airports and explore the
challenges of performing health security screening at individual sites. In
so doing, we identify a number of challenges that are associated with
safeguarding public health against the dissemination of infectious
diseases by air travel through UK airports. We also suggest that policy
transfer may represent an effective mechanism through which best practice
procedures from airports overseas could be adapted and incorporated in the
UK.
Journal: Transportation Planning and Technology
Pages: 19-33
Issue: 1
Volume: 34
Year: 2010
Month: 7
X-DOI: 10.1080/03081060.2011.530827
File-URL: http://hdl.handle.net/10.1080/03081060.2011.530827
File-Format: text/html
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Handle: RePEc:taf:transp:v:34:y:2010:i:1:p:19-33
Template-Type: ReDIF-Article 1.0
Author-Name: Geoff Dudley
Author-X-Name-First: Geoff
Author-X-Name-Last: Dudley
Author-Name: Phil Goodwin
Author-X-Name-First: Phil
Author-X-Name-Last: Goodwin
Author-Name: Glenn Lyons
Author-X-Name-First: Glenn
Author-X-Name-Last: Lyons
Author-Name: Charles Musselwhite
Author-X-Name-First: Charles
Author-X-Name-Last: Musselwhite
Author-Name: Peter Wiltshire
Author-X-Name-First: Peter
Author-X-Name-Last: Wiltshire
Title: Lost in translation: problems in interpreting business attitudes to transport
Abstract:
Abstract This paper reviews available UK evidence on
(private sector) business attitudes to transport. It follows a 2008 review
of public attitudes to transport, and provides an important frame of
reference for considering business attitudes. Accordingly the current
paper includes comparisons between public and business attitudes. There
are some prima facie similarities between public and business attitudes in
relation to congestion, the order of importance of transport attributes
(especially reliability), stated conditions for support of road pricing,
public transport, travel plans, telecommunications and some issues of
reducing travel. There are, however, some differences also: transport
concerns are less ubiquitous, less attention is given to the environmental
concerns associated with road building and there is less attention to
wider government goals such as equity, health, social welfare and the
environment. However, both similarities and differences may be misleading,
as research on business attitudes is less disciplined, and there are no
well-established theoretical frameworks (such as exist for individual
attitudes) for understanding attitudes, when applied to the corporate
views of a commercial body. In essence, many of the business attitudes
reports are framed as lobbying material yet, paradoxically, there can be
considerable ambiguity attached to the meanings of business attitudes,
that in turn can be partially attributed to doubts as to whether responses
represent individual or corporate attitudes. As a result, it is very
difficult, from the existing evidence, to interpret a clear and coherent
view or set of views of business on transport issues. The authors suggest
some protocols, with the aim of improving research methods that, if
implemented, could help improve the credibility and clarity of claims to
represent the ‘voice (or, more realistically, voices) of
business’.
Journal: Transportation Planning and Technology
Pages: 35-50
Issue: 1
Volume: 34
Year: 2010
Month: 7
X-DOI: 10.1080/03081060.2011.530828
File-URL: http://hdl.handle.net/10.1080/03081060.2011.530828
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Handle: RePEc:taf:transp:v:34:y:2010:i:1:p:35-50
Template-Type: ReDIF-Article 1.0
Author-Name: Joan Harvey
Author-X-Name-First: Joan
Author-X-Name-Last: Harvey
Author-Name: Simon Heslop
Author-X-Name-First: Simon
Author-X-Name-Last: Heslop
Author-Name: Neil Thorpe
Author-X-Name-First: Neil
Author-X-Name-Last: Thorpe
Title: The categorisation of drivers in relation to boredom
Abstract:
Abstract This paper develops the concept of driver boredom
by utilising a cluster analysis to describe different types of driver. A
two-step cluster analysis of a 49-item questionnaire measuring driver
boredom attitudes and perceptions was performed on 1563 UK drivers,
yielding four groups, labelled as ‘young, inattentive and
dangerous’, ‘enthusiastic and attentive’,
‘slow and unwilling’ and ‘safe and
experienced’. These clusters are compared to ascertain personality
and affect differences and whether or not there are different crash and
penalty histories. The significant differences found enable the clusters
to be seen in wider terms than simply boredom; they are considered in
terms of theories of flow and arousal and also in light of previous
attempts to classify driver types. This paper reports analyses that are
part of a larger study of driver boredom.
Journal: Transportation Planning and Technology
Pages: 51-69
Issue: 1
Volume: 34
Year: 2010
Month: 8
X-DOI: 10.1080/03081060.2011.530829
File-URL: http://hdl.handle.net/10.1080/03081060.2011.530829
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Handle: RePEc:taf:transp:v:34:y:2010:i:1:p:51-69
Template-Type: ReDIF-Article 1.0
Author-Name: Mike Maher
Author-X-Name-First: Mike
Author-X-Name-Last: Maher
Title: A comparison of the use of the cell transmission and platoon dispersion models in TRANSYT 13
Abstract:
Abstract The TRANSYT software, developed by the UK's
Transport Research Laboratory (TRL), has been used for optimising signal
timings in signalised networks for over 40 years. It consists of a
deterministic, macroscopic traffic model that evaluates
the performance index (PI) for any given set of timings x
and an optimiser that seeks to minimise the PI and hence
find the optimal timings x*. The conventional
platoon dispersion model in TRANSYT has the well-known
weakness of treating queues as if they stacked vertically at the
stop-line, and hence does not model ‘blocking back’.
However, the latest version, TRANSYT-13, offers an alternative form of
traffic model, the cell transmission model, which models
the spatial extent of queues, and should be more accurate, especially in
networks with closely spaced intersections. The paper investigates the
sensitivity of the resulting optimal signal timings to the choice of
traffic model, through application of TRANSYT-13 to a 6-arm signalised
motorway roundabout. The objective is to measure the benefit from using
the improved traffic model.
Journal: Transportation Planning and Technology
Pages: 71-85
Issue: 1
Volume: 34
Year: 2010
Month: 7
X-DOI: 10.1080/03081060.2011.530830
File-URL: http://hdl.handle.net/10.1080/03081060.2011.530830
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Handle: RePEc:taf:transp:v:34:y:2010:i:1:p:71-85
Template-Type: ReDIF-Article 1.0
Author-Name: Alexandros Nikitas
Author-X-Name-First: Alexandros
Author-X-Name-Last: Nikitas
Author-Name: Erel Avineri
Author-X-Name-First: Erel
Author-X-Name-Last: Avineri
Author-Name: Graham Parkhurst
Author-X-Name-First: Graham
Author-X-Name-Last: Parkhurst
Title: Older people's attitudes to road charging: are they distinctive and what are the implications for policy?
Abstract:
Abstract In an ageing society older people have a growing
influence on politics in general, and potentially on the acceptability of
road charging in particular. They face specific types of risk of
transport-related social exclusion which may influence their views on
charging, although there is also evidence to suggest that older people
favour, more than any other age group, what is positively valued by
society -- a process known as ‘pro-social value
orientation’. Family and friends may also affect older people's
considerations about their intentions and choices -- thus the importance
of studying the influence of ‘social norms’ on older
people's attitudes to road charging. The paper develops our understanding
of these issues, based on the findings of a quantitative survey conducted
in Bristol, UK. Evidence indicates that the attitudes of older people to
road charging do differ from those of younger people and that pro-social
value orientations and social norms do contribute to the formation of
these attitudes. It is concluded that the presence of pro-social attitude
orientations assists in explaining why people assumed to be
‘natural supporters’ of charging schemes may hold negative
attitudes, which underlines to scheme promoters the importance of
understanding and overcoming strongly held, psychologically complex
objections.
Journal: Transportation Planning and Technology
Pages: 87-108
Issue: 1
Volume: 34
Year: 2010
Month: 10
X-DOI: 10.1080/03081060.2011.530831
File-URL: http://hdl.handle.net/10.1080/03081060.2011.530831
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Handle: RePEc:taf:transp:v:34:y:2010:i:1:p:87-108
Template-Type: ReDIF-Article 1.0
Author-Name: Datu B. Agusdinata
Author-X-Name-First: Datu B.
Author-X-Name-Last: Agusdinata
Author-Name: Donald N. Fry
Author-X-Name-First: Donald N.
Author-X-Name-Last: Fry
Author-Name: Daniel A. Delaurentis
Author-X-Name-First: Daniel A.
Author-X-Name-Last: Delaurentis
Title: Policies to deal with multimodal transport emissions: a system-of-systems approach
Abstract:
Abstract The complex and uncertain nature of dealing with
multimodal transport emissions generates a need for appropriate
methodology to support informed decision making. This paper presents a
system-of-systems (SoS) approach that takes into account the complexity of
a policy problem stemming from the interactions of multiple actors and
technological artifacts. We discuss some SoS characteristics such as actor
operational and managerial independency, the hierarchical and horizontal
network of interdependencies among actors and artifacts, the emergent SoS
behavior, and the presence of multiple sets of solutions for achieving an
SoS objective. We illustrate such characteristics via the problem of
assessing the carbon emission impact of on-demand air service and
automobiles. Some preliminary results are presented regarding the impact
of alternative fuels on carbon emissions.
Journal: Transportation Planning and Technology
Pages: 109-123
Issue: 2
Volume: 34
Year: 2011
Month: 1
X-DOI: 10.1080/03081060.2011.554702
File-URL: http://hdl.handle.net/10.1080/03081060.2011.554702
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Handle: RePEc:taf:transp:v:34:y:2011:i:2:p:109-123
Template-Type: ReDIF-Article 1.0
Author-Name: Kenneth Button
Author-X-Name-First: Kenneth
Author-X-Name-Last: Button
Author-Name: Álvaro Costa
Author-X-Name-First: Álvaro
Author-X-Name-Last: Costa
Author-Name: Fabiene Costa
Author-X-Name-First: Fabiene
Author-X-Name-Last: Costa
Author-Name: Carlos Cruz
Author-X-Name-First: Carlos
Author-X-Name-Last: Cruz
Title: Problems of cost recovery by European airlines since market liberalization
Abstract:
Abstract The institutional background against which air
transport is supplied has been changing rapidly. The initiation of market
forces has led to lower fares, additional services, and more efficient
airline companies as competitive pressures have grown. A major concern,
however, is whether the resultant airline market is sustainable in the
long-term. There have been periodic short-term shocks to the market, the
most recent being the rapid rise in kerosene prices, but there are more
fundamental issues concerning the possibility of excess competition being
a generic feature of providing scheduled services in a competitive
environment. Market stability is not easily tested, but some indicators
can be explored to get better insights. Here we examine the fares offered
in selected Portuguese air transport markets for 2005--2006 to assess the
ability of carriers to recover their full costs -- a necessary condition
for stability. In particular, the paper is concerned with the pressures of
competition on the ability of airlines to increase the fares that they
offer as the scheduled date of departure approaches; such fares contribute
significantly to an airline's recovery of full costs. The evidence
suggests that in many cases airlines cannot, when confronted by
competition, extract additional revenues from last minute, low-price
elasticity passengers and that this could reduce the economic
sustainability of some services in Europe.
Journal: Transportation Planning and Technology
Pages: 125-138
Issue: 2
Volume: 34
Year: 2011
Month: 1
X-DOI: 10.1080/03081060.2011.554703
File-URL: http://hdl.handle.net/10.1080/03081060.2011.554703
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Handle: RePEc:taf:transp:v:34:y:2011:i:2:p:125-138
Template-Type: ReDIF-Article 1.0
Author-Name: Ryan Fries
Author-X-Name-First: Ryan
Author-X-Name-Last: Fries
Author-Name: Mashrur Chowdhury
Author-X-Name-First: Mashrur
Author-X-Name-Last: Chowdhury
Author-Name: Yongchang Ma
Author-X-Name-First: Yongchang
Author-X-Name-Last: Ma
Author-Name: Liz Stephen
Author-X-Name-First: Liz
Author-X-Name-Last: Stephen
Title: Evaluation of different contraflow strategies for hurricane evacuation in Charleston, South Carolina
Abstract:
Abstract Limited specific evidence is available on the
effectiveness of using contraflow as an evacuation traffic management
tool. This study was conducted to determine the best combination of
strategy options for evacuating Charleston, SC, along route I-26 during
the event of a hurricane or other events. PARAMICS microscopic traffic
simulator was used to evaluate the impact of each combination of evacuee
response timing and traffic control strategy, such as contraflow, with
respect to average vehicular travel time and evacuation duration. Analysis
revealed the combination of management strategies that created the lowest
evacuation durations and travel times for several types of anticipated
evacuee responses. Furthermore, a proposed reconfiguration of the
I-526/I-26 interchange for contraflow operations produced additional
savings in travel times and evacuation durations. These findings support
the use of all lanes for contraflow during all evacuations and provide
justification to examine a possible reconfiguration of the I-526/I-26
interchange for use during evacuations.
Journal: Transportation Planning and Technology
Pages: 139-154
Issue: 2
Volume: 34
Year: 2011
Month: 1
X-DOI: 10.1080/03081060.2011.554706
File-URL: http://hdl.handle.net/10.1080/03081060.2011.554706
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Handle: RePEc:taf:transp:v:34:y:2011:i:2:p:139-154
Template-Type: ReDIF-Article 1.0
Author-Name: Ioannis Tsapakis
Author-X-Name-First: Ioannis
Author-X-Name-Last: Tsapakis
Author-Name: William H. Schneider
Author-X-Name-First: William H.
Author-X-Name-Last: Schneider
Author-Name: Andrew P. Nichols
Author-X-Name-First: Andrew P.
Author-X-Name-Last: Nichols
Title: Improving the estimation of total and direction-based heavy-duty vehicle annual average daily traffic
Abstract:
Abstract The estimation of annual average daily traffic
(AADT) is an important parameter collected and maintained by all US
departments of transportation. There have been many past research studies
that have focused on ways to improve the estimation of AADT. This paper
builds upon previous research and compares eight methods, both traditional
and cluster-based methodologies, for aggregating monthly adjustment
factors for heavy-duty vehicles (US Department of Transportation Federal
Highway Administration (FHWA) vehicle classes 4--13). In addition to the
direct comparison between the methodologies, the results from the analysis
of variance show at the 95% confidence level that the four cluster-based
methods produce statistically lower variance and coefficient of variation
over the more traditional approaches. In addition to these findings --
which are consistent with previous total volume studies -- further
analysis is performed to compare total heavy-duty monthly adjustment
factors, both directions of traffic, with direction-based monthly
adjustment factors. The final results show that the variance as well as
the coefficient of variation improve on average by 25% when directional
aggregate monthly adjustment factors are used instead of total direction.
Journal: Transportation Planning and Technology
Pages: 155-166
Issue: 2
Volume: 34
Year: 2011
Month: 1
X-DOI: 10.1080/03081060.2011.554709
File-URL: http://hdl.handle.net/10.1080/03081060.2011.554709
File-Format: text/html
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Handle: RePEc:taf:transp:v:34:y:2011:i:2:p:155-166
Template-Type: ReDIF-Article 1.0
Author-Name: Yannis Tyrinopoulos
Author-X-Name-First: Yannis
Author-X-Name-Last: Tyrinopoulos
Title: Integrating vehicle positioning data in quality control programs in public transit: a European perspective
Abstract:
Abstract The purpose of this paper was to show how vehicle
positioning data collected through global positioning systems (GPS) or
similar applications can be used in quality control programs of public
transit operators to better assess the quality and performance of
transportation services, and improve them. The paper describes the concept
of the integration between quality control programs and vehicle monitoring
systems, presents a case study where the concept has been successfully
implemented, and discusses the benefits from the adoption of such an
approach. The implementation of the concept is characterized by
efficiency, accuracy, reliability, and optimization: efficiency in terms
of data flow; accuracy and reliability in terms of quality and performance
indicator values; and optimization in terms of optimum use of the
available information technology infrastructure. The paper places
particular emphasis on aspects relating to the interface between urban
transportation services, vehicle positioning technology, and
policy-making.
Journal: Transportation Planning and Technology
Pages: 167-176
Issue: 2
Volume: 34
Year: 2011
Month: 1
X-DOI: 10.1080/03081060.2011.554711
File-URL: http://hdl.handle.net/10.1080/03081060.2011.554711
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Handle: RePEc:taf:transp:v:34:y:2011:i:2:p:167-176
Template-Type: ReDIF-Article 1.0
Author-Name: Brenda I. Bustillos
Author-X-Name-First: Brenda I.
Author-X-Name-Last: Bustillos
Author-Name: Jeffrey Shelton
Author-X-Name-First: Jeffrey
Author-X-Name-Last: Shelton
Author-Name: Yi-Chang Chiu
Author-X-Name-First: Yi-Chang
Author-X-Name-Last: Chiu
Title: Urban university campus transportation and parking planning through a dynamic traffic simulation and assignment approach
Abstract:
Abstract Many urban university campuses are considered
major trip attractors. Considering the multimodal and complex nature of
university campus transportation planning and operation, this paper
proposes a dynamic traffic simulation and assignment analysis approach and
demonstrates how such a methodology can be successfully applied. Central
to the research is the estimation of trip
origin--destinations and the calibration of a parking lot
choice model. Dynamic simulation is utilized to simulate multiple modes of
transportation within the transportation network while further assigning
these modes with respect to various mode-specific roadway accessibilities.
A multiple vehicle-class simulation analysis for planning purposes becomes
a critical capability to predict how faculty and staff who once parked
within the campus core choose other nearby alternate parking lots. The
results highlight the effectiveness of the proposed approach in providing
integrated and reliable solutions for challenging questions that face
urban university campus planners and local transportation jurisdictions.
Journal: Transportation Planning and Technology
Pages: 177-197
Issue: 2
Volume: 34
Year: 2011
Month: 1
X-DOI: 10.1080/03081060.2011.554670
File-URL: http://hdl.handle.net/10.1080/03081060.2011.554670
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Handle: RePEc:taf:transp:v:34:y:2011:i:2:p:177-197
Template-Type: ReDIF-Article 1.0
Author-Name: Constantinos Antoniou
Author-X-Name-First: Constantinos
Author-X-Name-Last: Antoniou
Author-Name: Haris N. Koutsopoulos
Author-X-Name-First: Haris N.
Author-X-Name-Last: Koutsopoulos
Author-Name: Moshe Ben-Akiva
Author-X-Name-First: Moshe
Author-X-Name-Last: Ben-Akiva
Author-Name: Akhilendra S. Chauhan
Author-X-Name-First: Akhilendra S.
Author-X-Name-Last: Chauhan
Title: Evaluation of diversion strategies using dynamic traffic assignment
Abstract:
Abstract A framework for the evaluation of the
effectiveness of traffic diversion strategies for non-recurrent
congestion, based on predictive guidance and using dynamic traffic
assignment, is presented. Predictive guidance is based on a short-term
prediction of traffic conditions, incorporating user reaction to
information and guidance. A case study of the Lower Westchester County
network in New York State, using DynaMIT-P, is presented to illustrate the
application of the framework. DynaMIT-P is capable of evaluating diversion
strategies based on predicted conditions, which take into account
drivers’ response to traffic information. The case study simulates
the operations of predictive variable message signs positioned in
strategic locations. DynaMIT-P is calibrated for the study network and
used to establish base conditions for two incident scenarios in the
absence of advanced traveller information systems. The effectiveness of
predictive diversion strategies is evaluated (using rigorous statistical
tests) by comparing traffic conditions with and without diversion
strategies. The empirical findings suggest that incident diversion
strategies based on predictive guidance result in travel time savings and
increased travel time reliability.
Journal: Transportation Planning and Technology
Pages: 199-216
Issue: 3
Volume: 34
Year: 2011
Month: 2
X-DOI: 10.1080/03081060.2011.565168
File-URL: http://hdl.handle.net/10.1080/03081060.2011.565168
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Handle: RePEc:taf:transp:v:34:y:2011:i:3:p:199-216
Template-Type: ReDIF-Article 1.0
Author-Name: Hamideh Etemadnia
Author-X-Name-First: Hamideh
Author-X-Name-Last: Etemadnia
Author-Name: Khaled Abdelghany
Author-X-Name-First: Khaled
Author-X-Name-Last: Abdelghany
Title: A distributed origin--destination demand estimation approach for real-time traffic network management
Abstract:
Abstract This paper describes a distributed recursive
heuristic approach for the origin--destination demand estimation problem
for real-time traffic network management applications. The distributed
nature of the heuristic enables its parallelization and hence reduces
significantly its processing time. Furthermore, the heuristic reduces
dependency on historical data that are typically used to map the observed
link flows to their corresponding origin--destination pairs. In addition,
the heuristic allows the incorporation of any available partial
information on the demand distribution in the study area to improve the
overall estimation accuracy. The heuristic is implemented following a
hierarchal multi-threading mechanism. Dividing the study area into a set
of subareas, the demand of every two adjacent subareas is merged in a
separate thread. The merging operations continue until the demand for the
entire study area is estimated. Experiments are conducted to examine the
performance of the heuristic using hypothetical and real networks. The
obtained results illustrate that the heuristic can achieve reasonable
demand estimation accuracy while maintaining superiority in terms of
processing time.
Journal: Transportation Planning and Technology
Pages: 217-230
Issue: 3
Volume: 34
Year: 2011
Month: 1
X-DOI: 10.1080/03081060.2011.565169
File-URL: http://hdl.handle.net/10.1080/03081060.2011.565169
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Handle: RePEc:taf:transp:v:34:y:2011:i:3:p:217-230
Template-Type: ReDIF-Article 1.0
Author-Name: Thirayoot Limanond
Author-X-Name-First: Thirayoot
Author-X-Name-Last: Limanond
Author-Name: Nrachai Tuntiworawit
Author-X-Name-First: Nrachai
Author-X-Name-Last: Tuntiworawit
Title: Estimating arterial link speed using conventional road detectors
Abstract:
Abstract In response to an initiative to develop an
advanced traffic information system in Bangkok, this paper explores
practical guidelines for the optimal location of road sensors, such that
the data collected on spot speeds reflect an entire link's average speed.
In particular, the authors use microsimulation software to investigate
optimal detector locations, using the sum of squared errors and root mean
squared errors. The analysis hypothesizes that road segments are 0.4, 0.6,
0.8, 1.0, 2.0 and 3.0 km in length and are specially designed to replicate
typical arterial streets in Bangkok. The results show that a single
detector location can produce good estimates of link speed only for
segments that are shorter than 1.0 km. For distances of 1.0 km or more,
the results suggest that two detectors be used for good link speed
estimates under all traffic conditions.
Journal: Transportation Planning and Technology
Pages: 231-243
Issue: 3
Volume: 34
Year: 2011
Month: 1
X-DOI: 10.1080/03081060.2011.565171
File-URL: http://hdl.handle.net/10.1080/03081060.2011.565171
File-Format: text/html
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Handle: RePEc:taf:transp:v:34:y:2011:i:3:p:231-243
Template-Type: ReDIF-Article 1.0
Author-Name: H. Hussain
Author-X-Name-First: H.
Author-X-Name-Last: Hussain
Author-Name: R.S. Radin Umar
Author-X-Name-First: R.S.
Author-X-Name-Last: Radin Umar
Author-Name: M.S. Ahmad Farhan
Author-X-Name-First: M.S.
Author-X-Name-Last: Ahmad Farhan
Title: Establishing speed--flow--density relationships for exclusive motorcycle lanes
Abstract:
Abstract The motorcycle is a popular mode of transport in
Malaysia and developing Asian countries, but its significant
representation in the traffic mix results in high rates of motorcycle
accidents. As a result, the Malaysian Government decided to segregate
motorcycle traffic along its new federal roads as an engineering approach
to reduce accidents. However, traffic engineers needed to know the maximum
traffic a motorcycle lane could accommodate. Despite substantial
literature related to speed--flow--density relationships and capacities of
various transport facilities, there is a knowledge gap regarding
motorcycle lanes. This paper establishes motorcycle speed--flow--density
relationships and capacities of exclusive motorcycle lanes in Malaysia.
Observations of motorcycle flows and speeds were conducted along existing
and experimental motorcycle lanes. Motorcycle speed--density data were
aggregated and plotted for two types of observable motorcycle riding
behaviour patterns that were influenced by the widths of a motorcycle
lane: the headway pattern (lane width ≤ 1.7 m) and the space
pattern (lane width > 1.7 m). For both riding patterns, regression
analysis of motorcycle speed--density data best fits the logarithmic model
and consequently the motorcycle flow--density and speed--flow models are
derived. Motorcycle lane capacities for headway and space riding patterns
are estimated as 3300 mc/hr/lane and 2200 mc/hr/m, respectively.
Journal: Transportation Planning and Technology
Pages: 245-257
Issue: 3
Volume: 34
Year: 2011
Month: 2
X-DOI: 10.1080/03081060.2011.565175
File-URL: http://hdl.handle.net/10.1080/03081060.2011.565175
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Handle: RePEc:taf:transp:v:34:y:2011:i:3:p:245-257
Template-Type: ReDIF-Article 1.0
Author-Name: Inger Beate Hovi
Author-X-Name-First: Inger Beate
Author-X-Name-Last: Hovi
Author-Name: Anne Madslien
Author-X-Name-First: Anne
Author-X-Name-Last: Madslien
Author-Name: Hanne Sjølie
Author-X-Name-First: Hanne
Author-X-Name-Last: Sjølie
Author-Name: Birger Solberg
Author-X-Name-First: Birger
Author-X-Name-Last: Solberg
Author-Name: Erik Trømborg
Author-X-Name-First: Erik
Author-X-Name-Last: Trømborg
Author-Name: Knut Veisten
Author-X-Name-First: Knut
Author-X-Name-Last: Veisten
Title: Impacts of combining partial and general equilibrium modelling in freight transport analyses -- a forest sector case study from Norway
Abstract:
Abstract The forest sector in Norway is very transport
intensive, accounting for approximately 14% of total domestic freight
transport traffic on Norwegian roads. This paper presents an analysis
linking a general equilibrium freight transport modelling tool with a
partial equilibrium model of the forest sector. The freight transport
model predicts transport costs, modal split and transport patterns, and
the results are treated as inputs to the forest sector model. The
objective of the paper is to analyse the modelling effect of taking forest
sector model effects back into the freight transport model and treated as
new demand. Compared to a base scenario for the year 2020, we compare
analyses with and without this new demand from the forest sector model
back into the freight transport modelling tool.
Journal: Transportation Planning and Technology
Pages: 259-275
Issue: 3
Volume: 34
Year: 2011
Month: 4
X-DOI: 10.1080/03081060.2011.565182
File-URL: http://hdl.handle.net/10.1080/03081060.2011.565182
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Handle: RePEc:taf:transp:v:34:y:2011:i:3:p:259-275
Template-Type: ReDIF-Article 1.0
Author-Name: Hsing-Chung Chu
Author-X-Name-First: Hsing-Chung
Author-X-Name-Last: Chu
Title: An empirical study to determine freight travel time at a major port
Abstract:
Abstract This paper examines the reliability measures of
freight travel time on urban arterials that provide access to an
international seaport. The findings indicate that the reliability index
calculated by the median of travel time, which is less sensitive to
extreme values in a highly skewed distribution, is more appropriate. This
paper also examines several statistical distributions of travel time to
determine the best fit to the data of freight trips. The results of
goodness-of-fit tests indicate that the log-logistic is the best
statistical function for freight travel time during the midday off-peak
period. However, the lognormal distribution represents a better fit to
arterials with heavily congested traffic during peak periods.
Additionally, travel time prediction models identify the relationships
between travel time, speeds and other factors that affect travel time
reliability. The analysis suggests that incident-induced delays and speed
fluctuations primarily contributed to the unreliability of freight
movement on the urban arterials.
Journal: Transportation Planning and Technology
Pages: 277-295
Issue: 3
Volume: 34
Year: 2011
Month: 1
X-DOI: 10.1080/03081060.2011.565183
File-URL: http://hdl.handle.net/10.1080/03081060.2011.565183
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Handle: RePEc:taf:transp:v:34:y:2011:i:3:p:277-295
Template-Type: ReDIF-Article 1.0
Author-Name: Ingo Arne Hansen
Author-X-Name-First: Ingo Arne
Author-X-Name-Last: Hansen
Title: Railway operations modelling and analysis: an introduction to the special issue
Abstract:
Abstract This special issue is based on a selection of the
four best papers from the Third International Seminar on Railway
Operations Modelling and Analysis held in Zurich from 11 to 13 February
2009. The papers have been selected and reviewed by Board and other senior
members of the International Association of Railway Operations Research
(IAROR) and subsequently revised by their authors. The authors and their
papers come from universities in Sweden, The Netherlands, Italy,
Switzerland and Portugal. They represent valuable contributions to the
current state of scientific and professional knowledge in the area of
railway operations that can stimulate the broader application and further
development of advanced analytical, combinatorial and simulation models.
Journal: Transportation Planning and Technology
Pages: 297-299
Issue: 4
Volume: 34
Year: 2011
Month: 3
X-DOI: 10.1080/03081060.2011.577149
File-URL: http://hdl.handle.net/10.1080/03081060.2011.577149
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Handle: RePEc:taf:transp:v:34:y:2011:i:4:p:297-299
Template-Type: ReDIF-Article 1.0
Author-Name: O. Lindfeldt
Author-X-Name-First: O.
Author-X-Name-Last: Lindfeldt
Title: An analysis of double-track railway line capacity
Abstract:
Abstract In Sweden, rail traffic is almost never separated
according to speed. On several double-track lines the mix of heavy
freight, regional and high speed trains imposes severe capacity problems.
In order to evaluate the capacity for different traffic mixes, a
combinatorial model -- Timetable Variant Evaluation Model (TVEM) -- has
been developed. In this model both infrastructure and timetable are
modelled as variables. Traffic is divided into train patterns according to
a presumed regular timetable and then scheduled systematically in
different time locations. The timetable variants are evaluated with regard
to: mean values of capacity that give the number of trains/hr for the
required mix, variance measures that show how the capacity depends on the
timetable and scheduled delays that show the extension of run times
imposed by overtaking. The paper shows how the important distance between
adjacent overtaking stations can be sampled from Weibull distributions.
TVEM has been used to evaluate three different operational cases with
mixed traffic. The analysis shows that the impact on capacity from the
infrastructure increases with speed difference and frequency of operation
for passenger trains, while the importance of the infrastructure decreases
when traffic is more heterogeneous. The impact from the timetable is
strongest when the speed differences are low and/or the frequency of
passenger trains is low. Capacity loss due to increased speed differences
can be compensated for by additional overtaking stations. The slower
trains suffer from a considerable increase in scheduled delays when speed
differences increase.
Journal: Transportation Planning and Technology
Pages: 301-322
Issue: 4
Volume: 34
Year: 2011
Month: 3
X-DOI: 10.1080/03081060.2011.577150
File-URL: http://hdl.handle.net/10.1080/03081060.2011.577150
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Handle: RePEc:taf:transp:v:34:y:2011:i:4:p:301-322
Template-Type: ReDIF-Article 1.0
Author-Name: Gabrio Caimi
Author-X-Name-First: Gabrio
Author-X-Name-Last: Caimi
Author-Name: Marco Laumanns
Author-X-Name-First: Marco
Author-X-Name-Last: Laumanns
Author-Name: Kaspar Schüpbach
Author-X-Name-First: Kaspar
Author-X-Name-Last: Schüpbach
Author-Name: Stefan Wörner
Author-X-Name-First: Stefan
Author-X-Name-Last: Wörner
Author-Name: Martin Fuchsberger
Author-X-Name-First: Martin
Author-X-Name-Last: Fuchsberger
Title: The periodic service intention as a conceptual framework for generating timetables with partial periodicity
Abstract:
Abstract Many railway companies in Europe operate periodic
timetables. Yet most timetables are not entirely periodic but have a
mixture of different periodicities and many exceptions to cope with
changing demand. Current approaches for automatic timetable generation are
not able to deal with such partially periodic structures but consider only
fully periodic inputs. We therefore introduce the periodic Service
Intention (pSI) as a framework where customer-relevant information about
train services can be described, including their periodicity information.
We then address the problem of finding a feasible timetable that fulfills
the requirements specified in a pSI without the need for manual
post-processing. We solve this problem by projecting intended train runs
over equivalence classes and thereby reducing the pSI to an augmented
instance of periodic timetabling. Thus it is possible to use existing
models for periodic scheduling, such as Periodic Event Scheduling Problem,
to generate periodic timetables with partial periodicity, which are
finally rolled out to obtain the desired daily schedule according to the
commercial requirements of the pSI. Results for a test case from the
timetable for central Switzerland in 2008 show that this approach needs
only slightly longer computation time than for a fully periodic instance,
but the additional time is compensated by the fact that post-processing
becomes unnecessary and by the better quality of the solution. The
approach is particularly well suited for offers with a strong periodicity
but some irregularities, which could not be treated properly by existing
methods.
Journal: Transportation Planning and Technology
Pages: 323-339
Issue: 4
Volume: 34
Year: 2011
Month: 3
X-DOI: 10.1080/03081060.2011.577151
File-URL: http://hdl.handle.net/10.1080/03081060.2011.577151
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Handle: RePEc:taf:transp:v:34:y:2011:i:4:p:323-339
Template-Type: ReDIF-Article 1.0
Author-Name: F. Corman
Author-X-Name-First: F.
Author-X-Name-Last: Corman
Author-Name: A. D'Ariano
Author-X-Name-First: A.
Author-X-Name-Last: D'Ariano
Author-Name: M. Pranzo
Author-X-Name-First: M.
Author-X-Name-Last: Pranzo
Author-Name: I.A. Hansen
Author-X-Name-First: I.A.
Author-X-Name-Last: Hansen
Title: Effectiveness of dynamic reordering and rerouting of trains in a complicated and densely occupied station area
Abstract:
Abstract Railway traffic experiences disturbances during
operations that cause conflicts between train paths or even deadlock
situations. Dispatchers need actions to restore feasibility and limit
spreading of delays through the network. To help them in such a task, the
dispatching support tool ROMA (Railway traffic Optimization by Means of
Alternative graphs) has been implemented in a laboratory environment. This
paper reports on enhancements to the underlying train dispatching model as
well as to the solution algorithms studied in order to tackle the
increased complexity of busy stations with multiple conflicting paths and
high service frequencies. Advanced train reordering and rerouting
techniques are compared with straightforward rules and the current
approach in the Netherlands. Extensive computational studies based on
accepted statistical distributions of train delays for Utrecht Central
Station assess the effectiveness of the ROMA tool in terms of solution
quality and computation time.
Journal: Transportation Planning and Technology
Pages: 341-362
Issue: 4
Volume: 34
Year: 2011
Month: 3
X-DOI: 10.1080/03081060.2011.577152
File-URL: http://hdl.handle.net/10.1080/03081060.2011.577152
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Handle: RePEc:taf:transp:v:34:y:2011:i:4:p:341-362
Template-Type: ReDIF-Article 1.0
Author-Name: Marin V. Marinov
Author-X-Name-First: Marin V.
Author-X-Name-Last: Marinov
Author-Name: José M. Viegas
Author-X-Name-First: José M.
Author-X-Name-Last: Viegas
Title: Tactical management of rail freight transportation services: evaluation of yard performance
Abstract:
Abstract In this paper, a two-step approach for the
evaluation of rail freight yard performance at a tactical management
level, that could plausibly be used at both annual and weekly planning
levels, is presented and discussed. The suggested approach involves
analytical modelling with G/G/m queues and event-based simulations with
SIMUL8 which is implemented for the purposes of a rail freight operator.
Interesting concepts and important relations involving traffic rules, yard
capacity and utilization rates are demonstrated based on a case study of
CP Carga, the Portuguese rail freight operator.
Journal: Transportation Planning and Technology
Pages: 363-387
Issue: 4
Volume: 34
Year: 2011
Month: 3
X-DOI: 10.1080/03081060.2011.577155
File-URL: http://hdl.handle.net/10.1080/03081060.2011.577155
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Handle: RePEc:taf:transp:v:34:y:2011:i:4:p:363-387
Template-Type: ReDIF-Article 1.0
Author-Name: Olivier Richard
Author-X-Name-First: Olivier
Author-X-Name-Last: Richard
Author-Name: Sophie Constans
Author-X-Name-First: Sophie
Author-X-Name-Last: Constans
Author-Name: Rémy Fondacci
Author-X-Name-First: Rémy
Author-X-Name-Last: Fondacci
Title: Computing 4D near-optimal trajectories for dynamic air traffic flow management with column generation and branch-and-price
Abstract:
Abstract The current air traffic system faces recurrent
saturation problems. Numerous studies are dedicated to this issue,
including the present research on a new dynamic regulation filter holding
frequent trajectory optimisations in a real-time sliding horizon loop
process. We consider a trajectory optimisation problem arising in this
context, where a feasible four-dimensional (4D) trajectory is to be built
and assigned to each regulated flight to suppress sector overloads while
minimising the cost of the chosen policy. We model this problem with a
mixed integer linear programme and solve it with a branch-and-price
approach. The pricing sub-problem looks for feasible trajectories in a
dynamic three-dimensional (3D) network and is solved with a specific
algorithm based on shortest path labelling algorithms and on dynamic
programming. Each algorithm is tested on real-world data corresponding to
a complete traffic day in the European air traffic system; experimental
results, including computing times measurement, validate the solution
process.
Journal: Transportation Planning and Technology
Pages: 389-411
Issue: 5
Volume: 34
Year: 2011
Month: 4
X-DOI: 10.1080/03081060.2011.586110
File-URL: http://hdl.handle.net/10.1080/03081060.2011.586110
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Handle: RePEc:taf:transp:v:34:y:2011:i:5:p:389-411
Template-Type: ReDIF-Article 1.0
Author-Name: Erik Fridell
Author-X-Name-First: Erik
Author-X-Name-Last: Fridell
Author-Name: Mohammed Belhaj
Author-X-Name-First: Mohammed
Author-X-Name-Last: Belhaj
Author-Name: Christina Wolf
Author-X-Name-First: Christina
Author-X-Name-Last: Wolf
Author-Name: Martin Jerksjö
Author-X-Name-First: Martin
Author-X-Name-Last: Jerksjö
Title: Calculation of external costs for freight transport
Abstract:
Abstract The negative impacts of transport are in general
associated with costs. These costs are usually denoted as ‘external
costs’ or ‘externalities’. This paper presents a tool
for calculating external costs for freight transport together with its
application to a number of case studies. The categories considered
include: air pollution, greenhouse gases, noise, accidents and congestion.
Results are presented for a number of different transport alternatives as
total costs and divided into categories. The uncertainties in the results
are discussed. The assessment of these costs is essential for predicting
future transport costs.
Journal: Transportation Planning and Technology
Pages: 413-432
Issue: 5
Volume: 34
Year: 2010
Month: 2
X-DOI: 10.1080/03081060.2011.586112
File-URL: http://hdl.handle.net/10.1080/03081060.2011.586112
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Handle: RePEc:taf:transp:v:34:y:2010:i:5:p:413-432
Template-Type: ReDIF-Article 1.0
Author-Name: Matthew G. Karlaftis
Author-X-Name-First: Matthew G.
Author-X-Name-Last: Karlaftis
Title: Modeling transit vehicle repair duration and active service time
Abstract:
Abstract The need for dependable and flexible models of
transit vehicle maintenance has been well established in the literature as
a means for improving daily operations, capital planning and service
quality. Stemming from the practical need to predict the duration of
maintenance activities and active service time for buses, this paper uses
the principles of duration modeling to address two important questions:
what is the duration of vehicle maintenance activities and, given that a
bus is in active service, how long will it take? We extend previous work
by including exogenous factors directly affecting maintenance duration and
active service time in fully parametric duration models and examine such
activities for the transit system in Athens (Greece). Results indicate
that vehicle age, kilometers travelled and repair type are amongst the
most important determinants of maintenance duration.
Journal: Transportation Planning and Technology
Pages: 433-442
Issue: 5
Volume: 34
Year: 2011
Month: 4
X-DOI: 10.1080/03081060.2011.586113
File-URL: http://hdl.handle.net/10.1080/03081060.2011.586113
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Handle: RePEc:taf:transp:v:34:y:2011:i:5:p:433-442
Template-Type: ReDIF-Article 1.0
Author-Name: Jin-Su Mun
Author-X-Name-First: Jin-Su
Author-X-Name-Last: Mun
Title: A solution algorithm for a dynamic deterministic user equilibrium assignment model with departure time choice
Abstract:
Abstract A route-based combined model of dynamic
deterministic route and departure time choice and a solution method for
many origin and destination pairs is proposed. The divided linear travel
time model is used to calculate the link travel time and to describe the
propagation of flow over time. For the calculation of route travel times,
the predictive ideal route travel time concept is adopted. Solving the
combined model of dynamic deterministic route and departure time choice is
shown to be equivalent to solving simultaneously a system of non-linear
equations. A Newton-type iterative scheme is proposed to solve this
problem. The performance of the proposed solution method is demonstrated
using a version of the Sioux Falls network. This shows that the proposed
solution method produces good equilibrium solutions with reasonable
computational cost.
Journal: Transportation Planning and Technology
Pages: 443-466
Issue: 5
Volume: 34
Year: 2011
Month: 7
X-DOI: 10.1080/03081060.2011.586115
File-URL: http://hdl.handle.net/10.1080/03081060.2011.586115
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Handle: RePEc:taf:transp:v:34:y:2011:i:5:p:443-466
Template-Type: ReDIF-Article 1.0
Author-Name: Ta-Yin Hu
Author-X-Name-First: Ta-Yin
Author-X-Name-Last: Hu
Author-Name: Tsai-Yun Liao
Author-X-Name-First: Tsai-Yun
Author-X-Name-Last: Liao
Title: An empirical study of simulation-based dynamic traffic assignment procedures
Abstract:
Abstract Under Intelligent Transportation Systems (ITS),
real-time operations of traffic management measures depend on long-term
planning results, such as the origin--destination (OD) trip distribution;
however, results from current planning procedures are unable to provide
fundamental data for dynamic analysis. In order to capture dynamic traffic
characteristics, transportation planning models should play an important
role to integrate basic data with real-time traffic management and
control. In this paper, a heuristic algorithm is proposed to establish the
linkage between daily OD trips and dynamic traffic assignment (DTA)
procedures; thus results from transportation planning projects, in terms
of daily OD trips, can be extended to estimate time-dependent OD trips.
Field data from Taiwan are collected and applied in the calibration and
validation processes. Dynamic Network Assignment-Simulation Model for
Advanced Road Telematics (DYNASMART-P), a simulation-based DTA model, is
applied to generate time-dependent flows. The results from the validation
process show high agreement between actual flows from vehicle detectors
(VDs) and simulated flows from DYNAMSART-P.
Journal: Transportation Planning and Technology
Pages: 467-485
Issue: 5
Volume: 34
Year: 2011
Month: 4
X-DOI: 10.1080/03081060.2011.586116
File-URL: http://hdl.handle.net/10.1080/03081060.2011.586116
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Handle: RePEc:taf:transp:v:34:y:2011:i:5:p:467-485
Template-Type: ReDIF-Article 1.0
Author-Name: Rong-Chang Jou
Author-X-Name-First: Rong-Chang
Author-X-Name-Last: Jou
Author-Name: David Hensher
Author-X-Name-First: David
Author-X-Name-Last: Hensher
Author-Name: Yuan-Chan Wu
Author-X-Name-First: Yuan-Chan
Author-X-Name-Last: Wu
Author-Name: Jin-Long Liu
Author-X-Name-First: Jin-Long
Author-X-Name-Last: Liu
Title: A study of motorcyclist's idling stop behavior at red lights
Abstract:
Abstract Motorcycle activity in Asian economies is a
significant contributor to carbon dioxide (CO2) emissions, both
when moving and when idling at traffic lights. This paper investigates
Taiwanese motorcyclists’ behavior of turning off the idling engine
while stopping at traffic lights based on the theory of planned behavior
(TPB), which recognizes that the achievement of voluntary change behavior
can be identified by knowing an individual's attitudes (or behavioral
intentions [BIs]) in the context of social norms (SN). A structural
equation model system is used to identify candidate causal links between
attitudes, SN, BI and behavior related to the idling stop behavior of
motorcyclists. A partial least squares (PLS) model is built to correct the
covariance matrix, given the relatively small sample size. Results suggest
that attitudes, SN and perceived behavioral control, are significant
determinants of idling stop BI at red lights.
Journal: Transportation Planning and Technology
Pages: 487-495
Issue: 5
Volume: 34
Year: 2011
Month: 4
X-DOI: 10.1080/03081060.2011.586118
File-URL: http://hdl.handle.net/10.1080/03081060.2011.586118
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Handle: RePEc:taf:transp:v:34:y:2011:i:5:p:487-495
Template-Type: ReDIF-Article 1.0
Author-Name: Amir H. Shahpar
Author-X-Name-First: Amir H.
Author-X-Name-Last: Shahpar
Author-Name: Hedayat Z. Aashtiani
Author-X-Name-First: Hedayat Z.
Author-X-Name-Last: Aashtiani
Author-Name: Ardeshir Faghri
Author-X-Name-First: Ardeshir
Author-X-Name-Last: Faghri
Title: Development of a delay model for unsignalized intersections applicable to traffic assignment
Abstract:
Abstract This paper develops a model for estimating
unsignalized intersection delays which can be applied to traffic
assignment (TA) models. Current unsignalized intersection delay models
have been developed mostly for operational purposes, and demand detailed
geometric data and complicated procedures to estimate delay. These
difficulties result in unsignalized intersection delays being ignored or
assumed as a constant in TA models. Video and vehicle license plate number
recognition methods are used to collect traffic volume data and to measure
delays during peak and off-peak traffic periods at four unsignalized
intersections in the city of Tehran, Iran. Data on geometric design
elements are measured through field surveys. An empirical approach is used
to develop a delay model as a function of influencing factors based on 5-
and 15-min time intervals. The proposed model estimates delays on each
approach based on total traffic volumes, rights-of-way of the subject
approach and the intersection friction factor. The effect of conflicting
traffic flows is considered implicitly by using the intersection friction
factor. As a result, the developed delay model guarantees the convergence
of TA solution methods. A comparison between delay models performed using
different time intervals shows that the coefficients of determination,
R -super-2, increases from 43.2% to 63.1% as the time
interval increases from 5- to 15-min. The US Highway Capacity Manual (HCM)
delay model (which is widely used in Iran) is validated using the field
data and it is found that it overestimates delay, especially in the high
delay ranges.
Journal: Transportation Planning and Technology
Pages: 497-507
Issue: 5
Volume: 34
Year: 2011
Month: 4
X-DOI: 10.1080/03081060.2011.586119
File-URL: http://hdl.handle.net/10.1080/03081060.2011.586119
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Handle: RePEc:taf:transp:v:34:y:2011:i:5:p:497-507
Template-Type: ReDIF-Article 1.0
Author-Name: Pengjun Zhao
Author-X-Name-First: Pengjun
Author-X-Name-Last: Zhao
Title: Car use, commuting and urban form in a rapidly growing city: evidence from Beijing
Abstract:
The links between urban form and travel behaviour have been widely
studied in the field of travel demand management. However, the existing
literature is dominated by case studies from the developed countries. A
study of a city in a developing and industrialising country can add some
fresh evidence to the debate on the impacts of urban form on travel
patterns. Using household survey data from Beijing, this paper finds that
aspects of urban form have significant effects on workers' car use and the
duration of travel by car in journeys to work, while controlling for
socio-economic factors and households’ preferences related to
residential location. The sprawling patterns of land development play a
negative role in reducing motorised commuting trips and shortening vehicle
hours travelled in the current processes of rapid urban expansion and
motorisation. Since urban sprawl is greatly influenced by growing market
forces, the findings in this paper reveal the negative effects of
regulation--liberation of land development management on travel behaviour
modification.
Journal: Transportation Planning and Technology
Pages: 509-527
Issue: 6
Volume: 34
Year: 2011
Month: 6
X-DOI: 10.1080/03081060.2011.600049
File-URL: http://hdl.handle.net/10.1080/03081060.2011.600049
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Handle: RePEc:taf:transp:v:34:y:2011:i:6:p:509-527
Template-Type: ReDIF-Article 1.0
Author-Name: Deo Chimba
Author-X-Name-First: Deo
Author-X-Name-Last: Chimba
Author-Name: Chang-Jen Lan
Author-X-Name-First: Chang-Jen
Author-X-Name-Last: Lan
Title: Capacity-constrained traffic forecasting model
Abstract:
Projecting future traffic is an important stage in any traffic and
transportation planning study. Accurate traffic forecasting is vital for
transportation planning, highway safety evaluation, traffic operations
analysis, and geometric and pavement design among others. In view of its
importance, this paper introduces a regression-based traffic forecasting
methodology for a one dimensional capacity-constrained highway. Five
different prediction functions are tested; the best was selected according
to the accuracy of projections against historical traffic data. The
three-parameter logistic function produced more accurate projections
compared to other functions tested when highway capacity constraints were
taken into consideration. The R -super-2 values at
various test locations ranged from 88% to 98%, indicating good prediction
capability. Using the Fisher's information matrix approach, the
t-statistic test showed all parameters in the logistic
function were highly statistically significant. To evaluate reliability of
projections, predictive intervals were calculated at a 95% level of
confidence. Predictions using the logistic function were also compared to
those predicted using the compound growth rate and linear regression
methods. The results show that the proposed methodology generates much
more reasonable projections than current practices.
Journal: Transportation Planning and Technology
Pages: 529-545
Issue: 6
Volume: 34
Year: 2011
Month: 6
X-DOI: 10.1080/03081060.2011.600058
File-URL: http://hdl.handle.net/10.1080/03081060.2011.600058
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Handle: RePEc:taf:transp:v:34:y:2011:i:6:p:529-545
Template-Type: ReDIF-Article 1.0
Author-Name: Sunil Patil
Author-X-Name-First: Sunil
Author-X-Name-Last: Patil
Author-Name: Mark Burris
Author-X-Name-First: Mark
Author-X-Name-Last: Burris
Author-Name: W. Douglass Shaw
Author-X-Name-First: W. Douglass
Author-X-Name-Last: Shaw
Author-Name: Sisinnio Concas
Author-X-Name-First: Sisinnio
Author-X-Name-Last: Concas
Title: Variation in the value of travel time savings and its impact on the benefits of managed lanes
Abstract:
This paper examines the variation in the value of travel time savings
(VTTS) for travelers with a managed lane (ML) option when taking an
ordinary trip versus a trip that is unusual in some way. VTTS estimates
vary substantially depending on the urgency of the trip made. At the low
end, the mean VTTS for a traveler who wants to make extra stops and still
arrive on time is approximately 10% higher than that for an ordinary trip.
At the high end, a traveler running late for an appointment shows a mean
VTTS that is approximately 300% higher than that for an ordinary trip.
These estimates vary widely over the population of travelers. In light of
these variations, the value of an uncongested travel alternative (such as
MLs) is examined and found to be greatly undervalued if using typical VTTS
estimates.
Journal: Transportation Planning and Technology
Pages: 547-567
Issue: 6
Volume: 34
Year: 2011
Month: 6
X-DOI: 10.1080/03081060.2011.600068
File-URL: http://hdl.handle.net/10.1080/03081060.2011.600068
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Handle: RePEc:taf:transp:v:34:y:2011:i:6:p:547-567
Template-Type: ReDIF-Article 1.0
Author-Name: Milan Janić
Author-X-Name-First: Milan
Author-X-Name-Last: Janić
Title: Light Rail Rapid Transit systems for more sustainable ground accessibility of airports
Abstract:
This paper investigates the potential of Light Rail Rapid Transit (LRRT)
to mitigate the environmental and social burden of ground access systems
of an airport. This implies, on the one hand, LRRT's capability in
mitigating externalities in terms of noise, air pollution/climate change,
traffic incidents/accidents and congestion of airport ground access
systems and, on the other, the provision of sufficient capacity to
accommodate generally increasing volumes of both air passenger and airport
employee demand by connecting the airport to its core catchment area. A
methodology for assessing the capability of LRRT operating as an airport
ground access system is developed. This methodology consists of models to
analyze and predict demand and capacity for an LRRT system and models to
quantify the externalities of particular airport ground access systems as
well as assessing their prospective savings thanks to the introduction of
an LRRT system. The methodology is applied to a large European airport --
Amsterdam Schiphol (the Netherlands) -- using a ‘what-if?’
scenario approach.
Journal: Transportation Planning and Technology
Pages: 569-592
Issue: 6
Volume: 34
Year: 2011
Month: 6
X-DOI: 10.1080/03081060.2011.600073
File-URL: http://hdl.handle.net/10.1080/03081060.2011.600073
File-Format: text/html
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Handle: RePEc:taf:transp:v:34:y:2011:i:6:p:569-592
Template-Type: ReDIF-Article 1.0
Author-Name: Jerry Lee Alves dos Santos
Author-X-Name-First: Jerry Lee
Author-X-Name-Last: Alves dos Santos
Author-Name: Rômulo César Carvalho de Araújo
Author-X-Name-First: Rômulo César
Author-X-Name-Last: Carvalho de Araújo
Author-Name: Abel Cavalcante Lima Filho
Author-X-Name-First: Abel Cavalcante Lima
Author-X-Name-Last: Filho
Author-Name: Francisco Antônio Belo
Author-X-Name-First: Francisco Antônio
Author-X-Name-Last: Belo
Author-Name: José Antônio Gomes de Lima
Author-X-Name-First: José Antônio
Author-X-Name-Last: Gomes de Lima
Title: Telemetric system for monitoring and automation of railroad networks
Abstract:
This paper describes a new method of real-time train monitoring based on
the ZigBee/IEEE 802.15.4 protocol. The system consists of a mobile device
embedded in the moving train which transmits parameter signals that are
being measured by a base unit with the help of routers. When applied, the
technique monitors and controls vehicles operating on permanent routes,
making a real-time evaluation of their performance and location, and
allowing an effective planning of trains. It consists of a low cost, low
power consumption and safe modular technology capable of monitoring many
different variables simultaneously.
Journal: Transportation Planning and Technology
Pages: 593-603
Issue: 6
Volume: 34
Year: 2011
Month: 6
X-DOI: 10.1080/03081060.2011.600085
File-URL: http://hdl.handle.net/10.1080/03081060.2011.600085
File-Format: text/html
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Handle: RePEc:taf:transp:v:34:y:2011:i:6:p:593-603
Template-Type: ReDIF-Article 1.0
Author-Name: Yuh-Horng Wen
Author-X-Name-First: Yuh-Horng
Author-X-Name-Last: Wen
Title: Shipment forecasting for supply chain collaborative transportation management using grey models with grey numbers
Abstract:
The sharing of forecasts is vital to supply chain collaborative
transportation management (CTM). Shipment forecasting is fundamental to
CTM, and is essential to carrier tactical and operational planning
processes such as network planning, routing, scheduling, and fleet
planning and assignment. By applying and extending grey forecasting
theory, this paper develops a series of shipment forecasting models for
supply chain CTM. Grey time-series forecasting and grey systematic
forecasting models are developed for shipment forecasting under different
collaborative frameworks. This paper also integrates grey numbers with
grey models for analyzing shipment forecasting under partial information
sharing in CTM frameworks. An example of an integrated circuit (IC) supply
chain and relevant data are provided. The proposed models yield more
accurate prediction results than regression, autoregressive integrated
moving average (ARIMA), and neural network models. Finally, numerical
results indicate that as the degree of information sharing increases under
CTM, carrier prediction accuracy increases. This paper demonstrates how
the proposed forecasting models can be applied to the CTM system and
provides the theoretical basis for the forecasting module developed for
supply chain CTM.
Journal: Transportation Planning and Technology
Pages: 605-624
Issue: 6
Volume: 34
Year: 2011
Month: 6
X-DOI: 10.1080/03081060.2011.600089
File-URL: http://hdl.handle.net/10.1080/03081060.2011.600089
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Handle: RePEc:taf:transp:v:34:y:2011:i:6:p:605-624
Template-Type: ReDIF-Article 1.0
Author-Name: Branimir Stanić
Author-X-Name-First: Branimir
Author-X-Name-Last: Stanić
Author-Name: Vladan Tubić
Author-X-Name-First: Vladan
Author-X-Name-Last: Tubić
Author-Name: Nikola Čelar
Author-X-Name-First: Nikola
Author-X-Name-Last: Čelar
Title: Design and evaluation of a grade-separated intersection: a case study of the proposed Belgrade ‘Hipodrom’
Abstract:
This paper presents the evaluation results of three traffic solutions for
the complex grade-separated intersection located in the old part of
Belgrade at the junction with the new bridge over the Sava River. The
corridor to which the intersection belongs together with the new river
bridge are parts of a great urban artery called the Inner Half Semi-Ring
Road (IHSRR). The traffic solutions that are evaluated are defined in the
preliminary design phase, based on two opposed concepts: a complete grade
separation of all intersection legs (the CPV alternative --
‘grade-separated’) and a grade separation designed to
minimise construction costs (DMC 1 and 2 alternatives -- ‘minimise
cost’). The evaluation procedure is conducted in three steps:
first, the score based on expert assessment of the functionality of the
design solutions is determined; second, the alternatives are ranked
according to the value of a set of state indicators obtained by
micro-simulation using PTV--VISSIM 4.10; and third, the final score is
obtained by multi-criteria evaluation using the Technique for Order
Preference by Similarity to Ideal Solution (TOPSIS) method. The results of
the first evaluation step show a small advantage for DMC 2, a
sub-alternative of the DMC 1 alternative. The results of the
micro-simulation give advantage to the DMC 1 alternative. The
multi-criteria evaluation provides a better ‘goodness
factor’ for the CPV alternative against the DMC 1 alternative. At
the same time, the least construction cost favours alternative DMC 1.
Journal: Transportation Planning and Technology
Pages: 625-636
Issue: 6
Volume: 34
Year: 2011
Month: 6
X-DOI: 10.1080/03081060.2011.600096
File-URL: http://hdl.handle.net/10.1080/03081060.2011.600096
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Handle: RePEc:taf:transp:v:34:y:2011:i:6:p:625-636
Template-Type: ReDIF-Article 1.0
Author-Name: K. Triantis
Author-X-Name-First: K.
Author-X-Name-Last: Triantis
Author-Name: S. Sarangi
Author-X-Name-First: S.
Author-X-Name-Last: Sarangi
Author-Name: D. Teodorović
Author-X-Name-First: D.
Author-X-Name-Last: Teodorović
Author-Name: L. Razzolini
Author-X-Name-First: L.
Author-X-Name-Last: Razzolini
Title: Traffic congestion mitigation: combining engineering and economic perspectives
Abstract:
This paper introduces and provides a context for a special issue
consisting of five selected papers that examine traffic congestion
mitigation, with a focus on combining engineering and economic
perspectives. Each paper provides novel insights of their own. The papers
cover the modeling of parking behavior using possibility theory as well as
the evaluation of a novel concept called Highway Space Inventory Control,
where drivers must book in advance for their highway usage. A further
paper evaluates the implications of new types of traffic pricing schemes
and the challenges they face. Another paper tackles exactly this problem
by evaluating different measures using data from the Netherlands. A fourth
paper examines the implications of a disaster (bridge collapse) on traffic
and assigns an economic value to such an outcome. The final paper is a
case study that shows that price-based mechanisms may not be the best way
to curb congestion.
Journal: Transportation Planning and Technology
Pages: 637-645
Issue: 7
Volume: 34
Year: 2011
Month: 4
X-DOI: 10.1080/03081060.2011.602845
File-URL: http://hdl.handle.net/10.1080/03081060.2011.602845
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Handle: RePEc:taf:transp:v:34:y:2011:i:7:p:637-645
Template-Type: ReDIF-Article 1.0
Author-Name: Michele Ottomanelli
Author-X-Name-First: Michele
Author-X-Name-Last: Ottomanelli
Author-Name: Mauro Dell'Orco
Author-X-Name-First: Mauro
Author-X-Name-Last: Dell'Orco
Author-Name: Domenico Sassanelli
Author-X-Name-First: Domenico
Author-X-Name-Last: Sassanelli
Title: Modelling parking choice behaviour using Possibility Theory
Abstract:
This article presents a discrete choice model for evaluating parking
users’ behaviour. In order to explicitly take into account
imprecision and uncertainty underlying a user's choice process, the
proposed model has been developed within the framework of Possibility
Theory. This approach is an alternative way to represent imperfect
knowledge (uncertainty) of users about both parking and transportation
system status, as well as the approximate reasoning of the human decision
maker (imprecision). The resulting model is a quantitative soft computing
tool that could support traffic analysts in planning parking policies and
Advanced Traveller Information Systems. In fact, effects of information on
user choice can be incorporated into the model itself. Thus, we consider
the parking user be a decision maker who assumes a certain choice set (set
of perceived parking alternatives); the user has some information about
the parking supply system and he/she associates each parking alternative
with an approximate perceived cost/utility that is represented by a
possibility distribution; and, finally, the user chooses the alternative
which minimises/maximises his/her perceived parking cost/utility. The
results show how the model is able to represent the effect of various
parking policies on users’ behaviour and how the single component
of parking policy affects the decision process.
Journal: Transportation Planning and Technology
Pages: 647-667
Issue: 7
Volume: 34
Year: 2011
Month: 4
X-DOI: 10.1080/03081060.2011.602846
File-URL: http://hdl.handle.net/10.1080/03081060.2011.602846
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Handle: RePEc:taf:transp:v:34:y:2011:i:7:p:647-667
Template-Type: ReDIF-Article 1.0
Author-Name: Taede Tillema
Author-X-Name-First: Taede
Author-X-Name-Last: Tillema
Author-Name: Erik Verhoef
Author-X-Name-First: Erik
Author-X-Name-Last: Verhoef
Author-Name: Bert van Wee
Author-X-Name-First: Bert
Author-X-Name-Last: van Wee
Author-Name: Dirk van Amelsfort
Author-X-Name-First: Dirk
Author-X-Name-Last: van Amelsfort
Title: Evaluating the effects of urban congestion pricing: geographical accessibility versus social surplus
Abstract:
In urbanised areas around the world, road pricing policies are considered
more and more frequently, the aim often being to alleviate (some of the)
external traffic-related costs. To assess the effects of a proposed road
pricing measure, several evaluation measures can be used, coming from
different disciplines, including economics, transportation science and
transport geography. In this paper, we compare two types of evaluation
measure that can be used to assess the effectiveness of road pricing
measures: geographical accessibility measures and economic social surplus
measures. We explore the possibilities of both types of measure in terms
of evaluating road pricing effects from a theoretical perspective, as well
as comparing their outcome measures for a research area in the
Netherlands. By means of correlation analysis and spatial comparison of
outcomes, we find that geographical accessibility measures, being simpler
and easier to interpret than economic measures, offer a poor proxy of the
outcomes of the economic evaluation measures and vice versa. Therefore,
the decision whether to use economic surplus measures or geographical
accessibility indicators to a large extent depends on the research goal.
If the goal is to gain a thorough insight into the monetary gains/losses
resulting from a policy measure, economic measures, such as the
rule-of-half or the logsum measure, are preferable. However, if there are
concrete questions about the changes in accessibility of certain types of
activity locations, geographical indicators, such as the contour and
potential measures, are more appropriate. The outcomes of such
geographical measures, and especially those of the contour measures, are,
however, sensitive to the spatial distribution of activity locations in
the area under study and to the selection of the impedance parameter that
has to be selected in advance to compute the effects. Therefore, if
geographical indicators are to be used, it would be wise to use different
sensitivity parameters. It is only then that a thorough insight can be
gained into the (sensitivity of) geographical accessibility effects.
Journal: Transportation Planning and Technology
Pages: 669-689
Issue: 7
Volume: 34
Year: 2011
Month: 4
X-DOI: 10.1080/03081060.2011.602848
File-URL: http://hdl.handle.net/10.1080/03081060.2011.602848
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Handle: RePEc:taf:transp:v:34:y:2011:i:7:p:669-689
Template-Type: ReDIF-Article 1.0
Author-Name: Feng Xie
Author-X-Name-First: Feng
Author-X-Name-Last: Xie
Author-Name: David Levinson
Author-X-Name-First: David
Author-X-Name-Last: Levinson
Title: Evaluating the effects of the I-35W bridge collapse on road-users in the twin cities metropolitan region
Abstract:
This study evaluates the effects of the I-35W bridge collapse on
road-users in the Minneapolis-St Paul, Minnesota Twin Cities metropolitan
area. We adopted the Twin Cities Seven-County travel demand model
developed in previous research, re-calibrated it against July 2007 loop
detector traffic data, and used this model to carry out an evaluation of
economic loss incurred by increased travel delay in alternative scenarios
before and after the bridge collapse. We conclude that the failure of the
I-35W bridge resulted in an economic loss of US$71,000 to US$220,000 a
day, depending on how flexible road-users in the system adjusted their
trip destinations in response to the bridge closing. We also estimate that
the major traffic restoration projects Minnesota Department of
Transportation has implemented in quick response to the bridge collapse
can save road-users US$9500--17,500 a day. This translates into a
benefit--cost ratio of 2.0--9.0, suggesting these projects are highly
beneficial in an economic sense. In this analysis, the use of a
simplified, scaled-down travel demand model enabled us to carry out the
analysis quickly and accurately, which could see its contributions in
transportation planning under situations such as emergency relief and
comprehensive design.
Journal: Transportation Planning and Technology
Pages: 691-703
Issue: 7
Volume: 34
Year: 2011
Month: 4
X-DOI: 10.1080/03081060.2011.602850
File-URL: http://hdl.handle.net/10.1080/03081060.2011.602850
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Handle: RePEc:taf:transp:v:34:y:2011:i:7:p:691-703
Template-Type: ReDIF-Article 1.0
Author-Name: Praveen Edara
Author-X-Name-First: Praveen
Author-X-Name-Last: Edara
Author-Name: Dušan Teodorović
Author-X-Name-First: Dušan
Author-X-Name-Last: Teodorović
Author-Name: Konstantinos Triantis
Author-X-Name-First: Konstantinos
Author-X-Name-Last: Triantis
Author-Name: Shankar Natarajan
Author-X-Name-First: Shankar
Author-X-Name-Last: Natarajan
Title: A simulation-based methodology to compare the performance of highway space inventory control and ramp metering control
Abstract:
The Highway Space Inventory Control System (HSICS) is a novel travel
demand management concept in which all road users have to make
reservations in advance to enter a highway. A modeling
framework for such a system is proposed and illustrated for a hypothetical
highway section. The proposed system allocates highway space temporally
and spatially over time so as to optimize highway utilization by
maximizing passenger miles traveled. In this paper, a methodology is
developed to perform a quantitative comparison of the operational
performance of HSICS and two isolated ramp metering techniques: the ALINEA
algorithm and fixed pre-timed metering. The methodology involves a
combination of microscopic traffic simulation and heuristic optimization.
The proposed framework is generic and can be applied to compare other
traffic control and demand management techniques. The proposed methodology
is tested on a simulated highway section with traffic and geometric
characteristics similar to a real congested site. Simulation results show
that HSICS produces approximately 35 and 45% more passenger miles than
ALINEA and fixed pre-timed metering, respectively. Vehicle miles traveled
values for HSICS are comparable to those of ALINEA − 4% lower.
Journal: Transportation Planning and Technology
Pages: 705-715
Issue: 7
Volume: 34
Year: 2011
Month: 4
X-DOI: 10.1080/03081060.2011.602851
File-URL: http://hdl.handle.net/10.1080/03081060.2011.602851
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Handle: RePEc:taf:transp:v:34:y:2011:i:7:p:705-715
Template-Type: ReDIF-Article 1.0
Author-Name: Lauren Stuart
Author-X-Name-First: Lauren
Author-X-Name-Last: Stuart
Author-Name: Sudipta Sarangi
Author-X-Name-First: Sudipta
Author-X-Name-Last: Sarangi
Title: Auto Restricted Zone versus price changes: a case study
Abstract:
This case study compares the Auto Restricted Zone Policy (ARZ) with price
changes for parking permits in Louisiana State University (LSU). We find
that ARZ has a more significant effect on the reduction in purchase of
parking permits than price increases, albeit with a lag. We also find that
while driving continues to be the primary mode of choice, a significant
number of students are willing to adopt alternative means of
transportation, if facilities associated with them are improved. Since LSU
is fairly representative, we believe that this case study contains lessons
for other universities in the country facing traffic congestion issues.
Journal: Transportation Planning and Technology
Pages: 717-726
Issue: 7
Volume: 34
Year: 2011
Month: 4
X-DOI: 10.1080/03081060.2011.602852
File-URL: http://hdl.handle.net/10.1080/03081060.2011.602852
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Handle: RePEc:taf:transp:v:34:y:2011:i:7:p:717-726
Template-Type: ReDIF-Article 1.0
Author-Name: Shangyao Yan
Author-X-Name-First: Shangyao
Author-X-Name-Last: Yan
Author-Name: Fei-Yen Hsiao
Author-X-Name-First: Fei-Yen
Author-X-Name-Last: Hsiao
Author-Name: Jyunjhih Guo
Author-X-Name-First: Jyunjhih
Author-X-Name-Last: Guo
Author-Name: Yu-Ching Chen
Author-X-Name-First: Yu-Ching
Author-X-Name-Last: Chen
Title: Effective aircraft maintenance schedule adjustment following incidents
Abstract:
In the real world, planned aircraft maintenance schedules are often
affected by incidents. Airlines may thus need to adjust their aircraft
maintenance schedules following the incidents that occur during routine
operations. In tradition, such aircraft maintenance schedule adjustment
has been performed manually, a process which is neither effective nor
efficient, especially when the problem scale is large. In this study, an
aircraft maintenance schedule adjustment model is developed, with the
objective of minimizing the total system cost, subject to the related
operating constraints. The model is formulated as a zero-one integer
program and is solved using a mathematical programing solver. The
effectiveness of the model is evaluated by application to a case study
using data from an aircraft maintenance center in Taiwan. The test results
show the proposed model, as well as the scheduling rules abstracted from
the results are useful for the decision maker to adjust good maintenance
schedules.
Journal: Transportation Planning and Technology
Pages: 727-745
Issue: 8
Volume: 34
Year: 2011
Month: 8
X-DOI: 10.1080/03081060.2011.613582
File-URL: http://hdl.handle.net/10.1080/03081060.2011.613582
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Handle: RePEc:taf:transp:v:34:y:2011:i:8:p:727-745
Template-Type: ReDIF-Article 1.0
Author-Name: T.P. Hutchinson
Author-X-Name-First: T.P.
Author-X-Name-Last: Hutchinson
Title: Classification of reasons for poor customer experiences in service industries: the case of public transport
Abstract:
This paper examines why failures and deficiencies in customer service
occur, as discussed in both general business research and in public
transport research. The focus is not on individual encounters between
customers and a service provider, but on the organisational context that
leads to a particular quality of customer experience. Going beyond the
facts about service quality, the reasons for failures in quality need to
be classified and organised. Suggestions are made for this, beginning by
distinguishing between reasons internal to public transport itself (which
are split into four types, each being sub-classified) and those external
(again of four types, each subclassified). The proposed method of
organising the reasons is not specific to public transport, but could be
adapted to other industries.
Journal: Transportation Planning and Technology
Pages: 747-758
Issue: 8
Volume: 34
Year: 2011
Month: 7
X-DOI: 10.1080/03081060.2011.613584
File-URL: http://hdl.handle.net/10.1080/03081060.2011.613584
File-Format: text/html
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Handle: RePEc:taf:transp:v:34:y:2011:i:8:p:747-758
Template-Type: ReDIF-Article 1.0
Author-Name: Hüseyin Onur Tezcan
Author-X-Name-First: Hüseyin Onur
Author-X-Name-Last: Tezcan
Author-Name: Kemal Selçuk Öğüt
Author-X-Name-First: Kemal Selçuk
Author-X-Name-Last: Öğüt
Author-Name: Barış Çidimal
Author-X-Name-First: Barış
Author-X-Name-Last: Çidimal
Title: A multinomial logit car use model for a megacity of the developing world: Istanbul
Abstract:
The increase in motor vehicle use is one of the important factors that
cause traffic congestion, especially in megacities. Thus, the reasons
behind this increase require serious attention. This paper offers an
analysis of this kind, for a megacity from the developing world, Istanbul.
A stratified multinomial logit model accounting for the availability of a
second vehicle in the household is estimated for a sample drawn from a
questionnaire to gather information of actual car use in Istanbul. This
estimation is only possible through a unique data generation process that
converts actual preferences into a choice study setting. In addition, a
simulation study, generally utilized in the analyses of discrimination
between certain layers of society, and a scenario analysis related to
changes in income are also included in the paper for a better
understanding of the nature of the topic. The results show that the
behavior of households with a second vehicle available and not available
varies significantly due to household, individual and professional-related
characteristics.
Journal: Transportation Planning and Technology
Pages: 759-776
Issue: 8
Volume: 34
Year: 2011
Month: 7
X-DOI: 10.1080/03081060.2011.613585
File-URL: http://hdl.handle.net/10.1080/03081060.2011.613585
File-Format: text/html
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Handle: RePEc:taf:transp:v:34:y:2011:i:8:p:759-776
Template-Type: ReDIF-Article 1.0
Author-Name: Hualiang Teng
Author-X-Name-First: Hualiang
Author-X-Name-Last: Teng
Author-Name: Ning Wang
Author-X-Name-First: Ning
Author-X-Name-Last: Wang
Title: Estimating vehicle miles traveled combined with ITS data
Abstract:
‘Vehicle miles traveled’ (VMT) is an important performance
measure for highway systems. Currently, VMT [or ‘annual average
daily traffic’ (AADT)] is estimated from a combination of permanent
counting stations and short-term counts done at specified locations as
part of the Highway Performance Monitoring System (HPMS) mandated by the
US Federal Highway Administration. However, on some roadway sections,
Intelligent Transportation Systems (ITS) such as detectors and cameras
also produce traffic data. The question addressed in this paper is whether
and under what conditions ITS systems data could be used instead of HPMS
short-term counts (called ‘coverage counts’)? This paper
develops a methodology for determining a threshold number of missing daily
traffic counts, or alternatively, the number of valid ITS data
observations needed, in order to confidently replace the HPMS coverage
counts with ITS data. Because ITS counts, coverage counts, and actual
ground counts (e.g. continuous counts) cannot be found coexisting on a
roadway section, it is hard to compare them directly. In this paper, the
Monte Carlo simulation method is employed to generate synthetic ITS counts
and coverage counts from a set of relatively complete traffic counts
collected at a continuous count station. Comparisons are made between
simulated ITS counts, coverage counts, and actual ground counts. The
simulation results indicate that when there are>330 daily traffic counts
missing in a set of ITS counts in a year, that is, when there are at least
35 days of valid data, ITS counts can be used to derive a better AADT than
using coverage counts. This result is applied to calculate the VMT for the
Hampton Roads region in Virginia. The comparison between the VMTs derived
with using and not using the threshold number indicates that these two
VMTs are significantly different.
Journal: Transportation Planning and Technology
Pages: 777-794
Issue: 8
Volume: 34
Year: 2011
Month: 7
X-DOI: 10.1080/03081060.2011.613587
File-URL: http://hdl.handle.net/10.1080/03081060.2011.613587
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Handle: RePEc:taf:transp:v:34:y:2011:i:8:p:777-794
Template-Type: ReDIF-Article 1.0
Author-Name: Shuxia Guo
Author-X-Name-First: Shuxia
Author-X-Name-Last: Guo
Author-Name: Lei Yu
Author-X-Name-First: Lei
Author-X-Name-Last: Yu
Author-Name: Xumei Chen
Author-X-Name-First: Xumei
Author-X-Name-Last: Chen
Author-Name: Yu Zhang
Author-X-Name-First: Yu
Author-X-Name-Last: Zhang
Title: Modelling waiting time for passengers transferring from rail to buses
Abstract:
This paper develops a mathematical model to calculate the average waiting
time for passengers transferring from rail transit to buses based on the
statistical analysis of primary data collected in Beijing. An important
part of the average waiting time modelling is to analyse the distributions
of passenger arrival rates. It is shown that the lognormal and gamma
distributions have the best fit for direct transfer and non-direct
transfer passengers, respectively. Subsequently, an average waiting time
model for transferring passengers is developed based on passenger arrival
rate distributions. Furthermore, case studies are conducted for two
scenarios with real and estimated data, resulting in relative errors of
−3.69% and −3.77%, respectively. Finally, the paper analyses
the impacts of bus headway, the headway of rail cars, and the proportion
of direct transfer passengers on average waiting time.
Journal: Transportation Planning and Technology
Pages: 795-809
Issue: 8
Volume: 34
Year: 2011
Month: 7
X-DOI: 10.1080/03081060.2011.613589
File-URL: http://hdl.handle.net/10.1080/03081060.2011.613589
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Handle: RePEc:taf:transp:v:34:y:2011:i:8:p:795-809
Template-Type: ReDIF-Article 1.0
Author-Name: Jinxian Weng
Author-X-Name-First: Jinxian
Author-X-Name-Last: Weng
Title: Collision avoidance analysis for transition taper length
Abstract:
Transition taper length plays a vitally important role in work zone
safety operations because too short a transition taper length will result
in higher accident risks and too long a transition taper length could
increase traffic delay. This paper evaluates transition taper length under
various traffic conditions and road geometries using collision avoidance
analysis. The longitudinal distances for lane changing and emergency
stopping manoeuvres are respectively calculated using collision avoidance
analysis. The higher value between the longitudinal lane changing distance
and emergency stopping distance is considered as the expected transition
taper length. The comparison of transition taper lengths from the
collision avoidance analysis and current empirical transition taper
formulae shows that the collision avoidance analysis has the capability of
evaluating transition taper lengths. This paper also contributes to
providing theoretical supports for these empirical formulae.
Journal: Transportation Planning and Technology
Pages: 811-822
Issue: 8
Volume: 34
Year: 2011
Month: 7
X-DOI: 10.1080/03081060.2011.613591
File-URL: http://hdl.handle.net/10.1080/03081060.2011.613591
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Handle: RePEc:taf:transp:v:34:y:2011:i:8:p:811-822
Template-Type: ReDIF-Article 1.0
Author-Name: Padma Seetharaman
Author-X-Name-First: Padma
Author-X-Name-Last: Seetharaman
Author-Name: Madhu Errampalli
Author-X-Name-First: Madhu
Author-X-Name-Last: Errampalli
Author-Name: Velmurugan Senathipati
Author-X-Name-First: Velmurugan
Author-X-Name-Last: Senathipati
Author-Name: Anuradha Shukla
Author-X-Name-First: Anuradha
Author-X-Name-Last: Shukla
Author-Name: Subhamay Gangopadhyay
Author-X-Name-First: Subhamay
Author-X-Name-Last: Gangopadhyay
Title: Modeling time mean speed and space mean speed for heterogeneous traffic conditions
Abstract:
This paper analyzes vehicular speeds at a micro level and studies the
relationships between the important elements of speed, namely space mean
speed (SMS) and time mean speed (TMS) under heterogeneous traffic
conditions. Vehicular speed data were collected at selected road stretches
around Delhi, India, in an attempt to understand and model the type of
relationships between SMS and TMS under heterogeneous traffic conditions.
To demonstrate the superiority of the proposed models, comparisons are
made with existing traditional models. The results reveal that the
proposed models are consistent in predicting speeds with high accuracy.
Journal: Transportation Planning and Technology
Pages: 823-838
Issue: 8
Volume: 34
Year: 2011
Month: 8
X-DOI: 10.1080/03081060.2011.613593
File-URL: http://hdl.handle.net/10.1080/03081060.2011.613593
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Handle: RePEc:taf:transp:v:34:y:2011:i:8:p:823-838
Template-Type: ReDIF-Article 1.0
Author-Name: Ali Gholami
Author-X-Name-First: Ali
Author-X-Name-Last: Gholami
Author-Name: Afshin Shariat Mohaymany
Author-X-Name-First: Afshin Shariat
Author-X-Name-Last: Mohaymany
Title: Economic conditions for minibus usage in a multimodal feeder network
Abstract:
The introduction of minibuses into the transit fleets of some cities
makes it more important than ever to investigate the economic and
operating conditions of these vehicles for various transit and paratransit
services. A high performance transit system is of great interest, owing to
its desirable characteristics. However, it is not feasible to establish
and use such a system all over a city. It is therefore necessary to
support a high performance transit system with other modes to extend its
area of operation (owing to higher demand) and also to connect those areas
that are not covered by the high performance system to it. This paper
considers the use of minibuses in the design of metro line feeders and to
characterize the economic domain in which it is efficient to use them in a
feeder network. Based on results from ant colony optimization, the
performance measures of minibuses are compared with those of conventional
buses to help make decision makers aware of the use and role of these
vehicles. The study contradicts the common belief that, since minibuses
require similar driver costs to those of conventional buses, it is not
economical to use them in a transit fleet; in fact, it is shown that
minibuses can displace conventional buses in some situations in a feeder
network.
Journal: Transportation Planning and Technology
Pages: 839-856
Issue: 8
Volume: 34
Year: 2011
Month: 7
X-DOI: 10.1080/03081060.2011.613594
File-URL: http://hdl.handle.net/10.1080/03081060.2011.613594
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Handle: RePEc:taf:transp:v:34:y:2011:i:8:p:839-856
Template-Type: ReDIF-Article 1.0
Author-Name: Amir Samimi
Author-X-Name-First: Amir
Author-X-Name-Last: Samimi
Author-Name: Kazuya Kawamura
Author-X-Name-First: Kazuya
Author-X-Name-Last: Kawamura
Author-Name: Abolfazl Mohammadian
Author-X-Name-First: Abolfazl
Author-X-Name-Last: Mohammadian
Title: A behavioral analysis of freight mode choice decisions
Abstract:
This paper develops a behavioral analysis of freight mode choice
decisions that could provide a basis for an acceptable analytical tool for
policy assessment. The paper specifically examines the way that truck and
rail compete for commodity movement in the US. Two binary mode choice
models are introduced in which some shipment-specific variables (e.g.
distance, weight and value) and mode-specific variables (e.g. haul time
and cost) are found to be determinants. The specifications of the
non-selected choice are imputed in a machine learning module. Shipping
cost is found to be a central factor for rail shipments, while road
shipments are found to be more sensitive to haul time. Sensitivity of mode
choice decisions is further analyzed under different fuel price
fluctuation scenarios. A low level of mode choice sensitivity is found
with respect to fuel price, such that even a 50% increase in fuel cost
does not cause a significant modal shift between truck and rail.
Journal: Transportation Planning and Technology
Pages: 857-869
Issue: 8
Volume: 34
Year: 2011
Month: 6
X-DOI: 10.1080/03081060.2011.600092
File-URL: http://hdl.handle.net/10.1080/03081060.2011.600092
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Handle: RePEc:taf:transp:v:34:y:2011:i:8:p:857-869
Template-Type: ReDIF-Article 1.0
Author-Name: Stephen G. Ison
Author-X-Name-First: Stephen G.
Author-X-Name-Last: Ison
Author-Name: Stephen Potter
Author-X-Name-First: Stephen
Author-X-Name-Last: Potter
Title: Universities' Transport Studies Group UK Annual Conference 2011
Journal: Transportation Planning and Technology
Pages: 1-2
Issue: 1
Volume: 35
Year: 2012
Month: 2
X-DOI: 10.1080/03081060.2012.644660
File-URL: http://hdl.handle.net/10.1080/03081060.2012.644660
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Handle: RePEc:taf:transp:v:35:y:2012:i:1:p:1-2
Template-Type: ReDIF-Article 1.0
Author-Name: Geoffrey Andrews
Author-X-Name-First: Geoffrey
Author-X-Name-Last: Andrews
Author-Name: Graham Parkhurst
Author-X-Name-First: Graham
Author-X-Name-Last: Parkhurst
Author-Name: Yusak O. Susilo
Author-X-Name-First: Yusak O.
Author-X-Name-Last: Susilo
Author-Name: Jon Shaw
Author-X-Name-First: Jon
Author-X-Name-Last: Shaw
Title: The grey escape: investigating older people's use of the free bus pass
Abstract:
Since 2008 most older people in England have benefited from unlimited
area-wide free travel by bus after the morning peak period. The official
policy rhetoric supporting implementation of the measure drew
significantly on the need to reduce social exclusion amongst older people.
However, despite a substantial increase in the number of concessionary
journeys in England and the associated cost liabilities for local
authorities and possibly also operators, there is currently only limited
understanding of the wide ranging effects on bus use of providing a free
pass, and in particular to whom benefits from the policy accrue. In part,
this circumstance results from a methodological focus by evaluation
studies hitherto that has emphasised aggregate-level data, often at the
expense of the very rich contextual information about how the individual
benefits from using a pass. This article presents insights into the
perceptions, motivations and decisions relating to use of free bus passes,
highlighting the existence of both tangible and intangible benefits which
arise. It offers a fresh insight into previously undefined uses and
benefits derived from possessing and using a concessionary bus pass. This
article concludes by noting possible policy implications of the research
in the context of the UK's ageing population and for other international
contexts where the transport intervention of free bus travel is being
considered.
Journal: Transportation Planning and Technology
Pages: 3-15
Issue: 1
Volume: 35
Year: 2011
Month: 6
X-DOI: 10.1080/03081060.2012.635413
File-URL: http://hdl.handle.net/10.1080/03081060.2012.635413
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Handle: RePEc:taf:transp:v:35:y:2011:i:1:p:3-15
Template-Type: ReDIF-Article 1.0
Author-Name: John D. Lees-Miller
Author-X-Name-First: John D.
Author-X-Name-Last: Lees-Miller
Author-Name: R. Eddie Wilson
Author-X-Name-First: R. Eddie
Author-X-Name-Last: Wilson
Title: Proactive empty vehicle redistribution for personal rapid transit and taxis
Abstract:
The empty vehicle redistribution (EVR) problem is to decide when and
where to move empty vehicles in a Personal Rapid Transit or taxi system.
These decisions are made in real time by an EVR algorithm. A reactive EVR
algorithm moves empty vehicles only in response to known requests; in
contrast, a proactive EVR algorithm moves empty vehicles in anticipation
of future requests. This paper describes two new proactive EVR algorithms,
called sampling and voting (SV) and dynamic transportation problem (DTP),
that move empty vehicles proactively based on demand estimates from
historical data. It also develops methods for assessing the performance of
EVR algorithms absolutely in terms of both throughput and passenger
waiting times. In simulation tests, the proposed algorithms provide lower
passenger waiting times than other algorithms in the literature, and
proactive movement of empty vehicles significantly reduces waiting times,
usually with a modest increase in empty vehicle travel.
Journal: Transportation Planning and Technology
Pages: 17-30
Issue: 1
Volume: 35
Year: 2011
Month: 9
X-DOI: 10.1080/03081060.2012.635414
File-URL: http://hdl.handle.net/10.1080/03081060.2012.635414
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Handle: RePEc:taf:transp:v:35:y:2011:i:1:p:17-30
Template-Type: ReDIF-Article 1.0
Author-Name: Zahara Batool
Author-X-Name-First: Zahara
Author-X-Name-Last: Batool
Author-Name: Oliver Carsten
Author-X-Name-First: Oliver
Author-X-Name-Last: Carsten
Author-Name: Ann Jopson
Author-X-Name-First: Ann
Author-X-Name-Last: Jopson
Title: Road safety issues in Pakistan: a case study of Lahore
Abstract:
This paper presents the results of a qualitative study of road safety
issues in Pakistan, which was carried out with the intent of developing a
better understanding of the road safety profile of the country. The study
is exploratory in nature, based on semi-structured interviews, and targets
government officials, academics and the general driving population to
investigate their perception of factors provoking deviant driving styles
in the country. Interviews were tape-recorded and analysed using a
‘template analysis’ technique. The analysis revealed
institutional issues, execution issues, physical and operational issues,
behavioural issues and those related to road safety research and accident
data bank as salient themes lowering road safety standards in the country.
This has suggested a need for reforms at institutional, physical and
operational levels and the need to bring change at a societal level
through behavioural transformation, intensive traffic monitoring and law
enforcement, along with conduction of road safety related research work.
Journal: Transportation Planning and Technology
Pages: 31-48
Issue: 1
Volume: 35
Year: 2011
Month: 11
X-DOI: 10.1080/03081060.2012.635415
File-URL: http://hdl.handle.net/10.1080/03081060.2012.635415
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Handle: RePEc:taf:transp:v:35:y:2011:i:1:p:31-48
Template-Type: ReDIF-Article 1.0
Author-Name: Polyvios Polyviou
Author-X-Name-First: Polyvios
Author-X-Name-Last: Polyviou
Author-Name: Nick Hounsell
Author-X-Name-First: Nick
Author-X-Name-Last: Hounsell
Author-Name: Birendra Shrestha
Author-X-Name-First: Birendra
Author-X-Name-Last: Shrestha
Title: Modelling incidents for dynamic bus fleet management purposes: a UK perspective
Abstract:
Bus operations throughout the world are increasingly being equipped with
Intelligent Transport Systems such as Automatic Vehicle Location (AVL).
AVL can support a variety of functions, including Dynamic Bus Fleet
Management (DBFM), which has yet to be established in most bus fleets in
the UK in a systematic way. To develop a fundamental understanding of the
bus and traffic related incidents in bus-based public transport for DBFM
purposes, a microscopic simulation model, capable of modelling these
incidents, has been developed and applied to a variety of scenarios. This
paper describes the design and development of the model Simulating
Incidents for BUs FlEet Management (SIBUFEM), for modelling bus operations
during full-day periods in which incidents of different types can occur.
The paper describes the model's functionality, including the use of
journey time profiles, passenger-dependent bus stop dwell times and
deterministic time-dependent queuing theory. Results focus on key
performance measures including, but not limited to, bus journey times,
passenger waiting times and bus delays resulting from various bus and
traffic incidents. SIBUFEM has been applied to a main bus corridor in
Southampton, UK, with bus flows increased to produce a high-frequency
service. A base case of ‘normal’ operations has been
established, for comparison with results from a number of incident
scenarios, using key model performance parameters of average bus journey
time, bus speed and excess waiting time. Incidents range from bus
breakdowns, to traffic incidents such as road-works, traffic accidents and
illegal parking. In SIBUFEM, these are specified in terms of their
location, duration and severity (loss of capacity). The paper concludes
with a discussion on potential DBFM strategies and how the SIBUFEM can be
further developed to allow these strategies to be evaluated.
Journal: Transportation Planning and Technology
Pages: 49-67
Issue: 1
Volume: 35
Year: 2011
Month: 7
X-DOI: 10.1080/03081060.2012.635416
File-URL: http://hdl.handle.net/10.1080/03081060.2012.635416
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Handle: RePEc:taf:transp:v:35:y:2011:i:1:p:49-67
Template-Type: ReDIF-Article 1.0
Author-Name: Ian Shergold
Author-X-Name-First: Ian
Author-X-Name-Last: Shergold
Author-Name: Graham Parkhurst
Author-X-Name-First: Graham
Author-X-Name-Last: Parkhurst
Author-Name: Charles Musselwhite
Author-X-Name-First: Charles
Author-X-Name-Last: Musselwhite
Title: Rural car dependence: an emerging barrier to community activity for older people
Abstract:
Community activity is a key contributor to quality of life for many older
people. It also plays a role in the well-being of the communities they
live in. Mobility, though, is central to such activity, and thus a
conceptual link is proposed between ‘mobility capital’ and
wider community sustainability. In developed nations older people comprise
a growing share of rural populations and thus are of increasing importance
to rural community sustainability, yet their mobility can be problematic.
The paper contends that mobility is further compromised by an increasing
focus on the car as the rural transport solution. To explore this
hypothesis, the community interactions of a sample of rural elders living
in Southwest England and Wales is examined, drawing on a survey and
semi-structured interviews. Key findings were the localised nature of most
journeys and the wide range of transport modes used. Although car
availability was important, it was not a panacea. Given the importance of
community activities to individuals and their communities it is concluded
that more emphasis should be placed in rural transport policy on
facilitating short-range travel for social purposes, including walking,
cycling and the use of mobility scooters.
Journal: Transportation Planning and Technology
Pages: 69-85
Issue: 1
Volume: 35
Year: 2011
Month: 3
X-DOI: 10.1080/03081060.2012.635417
File-URL: http://hdl.handle.net/10.1080/03081060.2012.635417
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Handle: RePEc:taf:transp:v:35:y:2011:i:1:p:69-85
Template-Type: ReDIF-Article 1.0
Author-Name: Alireza Zolfaghari
Author-X-Name-First: Alireza
Author-X-Name-Last: Zolfaghari
Author-Name: Aruna Sivakumar
Author-X-Name-First: Aruna
Author-X-Name-Last: Sivakumar
Author-Name: John W. Polak
Author-X-Name-First: John W.
Author-X-Name-Last: Polak
Title: Choice set pruning in residential location choice modelling: a comparison of sampling and choice set generation approaches in greater London
Abstract:
The discrete choice analysis of residential location choice forms an
important part of land use-transport modelling systems but gives rise to a
number of significant modelling challenges, one of which is the choice set
formation problem. A number of alternative approaches exist to addressing
the choice set formation problem, but to the best of our knowledge, there
have been no efforts to empirically compare their performance using real
choice data. In this paper, we propose to address this gap by examining
the performance of several choice set formation methods within the context
of residential location choice in London. The paper presents a brief
review of the relevant theoretical and empirical literature on the
treatment of the choice set formation problem in the context of spatial
choice and sets out the characteristics of the specific modelling
approaches implemented in the empirical research. In particular, we
compare a recently proposed hazard-based screening model with more
conventional pure statistical treatments. The empirical research uses a
specially constructed data-set on residential location choice, developed
by the authors for the Greater London area, which draws on information
from a number of separate data sources (including revealed preference data
from the London Area Travel Survey). The alternative choice set formation
approaches are assessed in terms of their prediction performance on a
hold-out validation sub-sample and also in terms of estimated model
parameters.
Journal: Transportation Planning and Technology
Pages: 87-106
Issue: 1
Volume: 35
Year: 2011
Month: 9
X-DOI: 10.1080/03081060.2012.635420
File-URL: http://hdl.handle.net/10.1080/03081060.2012.635420
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Handle: RePEc:taf:transp:v:35:y:2011:i:1:p:87-106
Template-Type: ReDIF-Article 1.0
Author-Name: Jing Zhang
Author-X-Name-First: Jing
Author-X-Name-Last: Zhang
Author-Name: Nick Hounsell
Author-X-Name-First: Nick
Author-X-Name-Last: Hounsell
Author-Name: Birendra Shrestha
Author-X-Name-First: Birendra
Author-X-Name-Last: Shrestha
Title: Calibration of bus parameters in microsimulation traffic modelling
Abstract:
Microscopic traffic simulation models have advanced significantly in
recent years and are now used extensively around the world for detailed
traffic modelling where dynamic operations have to be represented. Whilst
extremely powerful, these models can have substantial calibration
requirements. This paper illustrates a new method of calibration of bus
performance parameters as part of the ‘Gipps’ car-following
model used within the microscopic simulation package Aimsun. This research
looks at the impact of bus signal priority strategies on bus and traffic
emissions. Calibration was undertaken using second-by-second bus
performance data recorded automatically within the new iBus system in
London. Results illustrate significant differences between some measured
and default parameters, which in turn lead to some inaccuracies in
emissions predictions for buses. Calibration is therefore essential and
can benefit from the ever-increasing sources of automatic data emerging
from new Intelligent Transport Systems applications.
Journal: Transportation Planning and Technology
Pages: 107-120
Issue: 1
Volume: 35
Year: 2011
Month: 9
X-DOI: 10.1080/03081060.2012.635431
File-URL: http://hdl.handle.net/10.1080/03081060.2012.635431
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Handle: RePEc:taf:transp:v:35:y:2011:i:1:p:107-120
Template-Type: ReDIF-Article 1.0
Author-Name: Sigal Kaplan
Author-X-Name-First: Sigal
Author-X-Name-Last: Kaplan
Author-Name: Shlomo Bekhor
Author-X-Name-First: Shlomo
Author-X-Name-Last: Bekhor
Author-Name: Yoram Shiftan
Author-X-Name-First: Yoram
Author-X-Name-Last: Shiftan
Title: Web-based survey design for unravelling semi-compensatory choice in transport and urban planning
Abstract:
The estimation of semi-compensatory models is gaining momentum in
transport planning in recent years. However, traditional survey
methodologies focus on collecting solely compensatory choice data, which
leads to information loss when semi-compensatory models are estimated. The
present study proposes a novel web-based survey that enables collecting
data about the entire semi-compensatory choice process. The web-based
environment allows seamless tracking of semi-compensatory choice protocols
without interfering with the natural choice process and without
introducing problems related to comprehension bias, narrative
inconsistency and misinterpretation of the choice protocols. The procedure
is applied to rental apartment choice by students and results shed light
on semi-compensatory choice by: (1) demonstrating the importance of choice
set formation; (2) unravelling the distribution of threshold selection
across the population; (3) revealing the linkage between the viable
choice-set and the choice.
Journal: Transportation Planning and Technology
Pages: 121-143
Issue: 2
Volume: 35
Year: 2011
Month: 10
X-DOI: 10.1080/03081060.2012.651874
File-URL: http://hdl.handle.net/10.1080/03081060.2012.651874
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Handle: RePEc:taf:transp:v:35:y:2011:i:2:p:121-143
Template-Type: ReDIF-Article 1.0
Author-Name: Jaeyoung Kwak
Author-X-Name-First: Jaeyoung
Author-X-Name-Last: Kwak
Author-Name: Byungkyu Park
Author-X-Name-First: Byungkyu
Author-X-Name-Last: Park
Author-Name: Jaesup Lee
Author-X-Name-First: Jaesup
Author-X-Name-Last: Lee
Title: Evaluating the impacts of urban corridor traffic signal optimization on vehicle emissions and fuel consumption
Abstract:
This study investigates the impacts of traffic signal timing optimization
on vehicular fuel consumption and emissions at an urban corridor. The
traffic signal optimization approach proposed integrates a TRANSIMS
microscopic traffic simulator, the VT-Micro model (a microscopic emission
and fuel consumption estimation model), and a genetic algorithm (GA)-based
optimizer. An urban corridor consisting of four signalized intersections
in Charlottesville, VA, USA, is used for a case study. The result of the
case study is then compared with the best traffic signal timing plan
generated by Synchro using the TRANSIMS microscopic traffic simulator. The
proposed approach achieves much better performance than that of the best
Synchro solution in terms of air quality, energy and mobility measures:
20% less network-wide fuel consumption, 8--20% less vehicle emissions, and
nearly 27% less vehicle-hours-traveled (VHT).
Journal: Transportation Planning and Technology
Pages: 145-160
Issue: 2
Volume: 35
Year: 2011
Month: 10
X-DOI: 10.1080/03081060.2011.651877
File-URL: http://hdl.handle.net/10.1080/03081060.2011.651877
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Handle: RePEc:taf:transp:v:35:y:2011:i:2:p:145-160
Template-Type: ReDIF-Article 1.0
Author-Name: Josée Dumont
Author-X-Name-First: Josée
Author-X-Name-Last: Dumont
Author-Name: Amer Shalaby
Author-X-Name-First: Amer
Author-X-Name-Last: Shalaby
Author-Name: Matthew J. Roorda
Author-X-Name-First: Matthew J.
Author-X-Name-Last: Roorda
Title: A GPS-aided survey for assessing trip reporting accuracy and travel of students without telephone land lines
Abstract:
A geo-positioning satellite (GPS)-based survey, using a web-based
prompted recall tool, was conducted on a sample of 94 students at the
University of Toronto from November 2008 to April 2009. The sample
included students with and without telephone land lines, allowing for a
statistical comparison of demographic and travel behaviour attributes. The
same subjects simultaneously completed a traditional trip reporting
survey, modelled on the household travel survey in Toronto, allowing for a
comparison between the travel behaviour information obtained from the GPS
and that reported by the participants in the traditional survey. Students
with a land line are more likely to live in houses, with parents, and to
live in suburban areas than students without a land line. They also make
fewer trips in total, fewer discretionary trips, more transit and auto
trips and fewer active trips than students without a land line. By
comparing questionnaire-based data and GPS data, we found that most
participants reported in the questionnaire either the same number of
GPS-based trips or fewer. On average, the GPS survey captured 1.29 more
daily trips per participant than the corresponding trips reported in the
questionnaire.
Journal: Transportation Planning and Technology
Pages: 161-173
Issue: 2
Volume: 35
Year: 2011
Month: 8
X-DOI: 10.1080/03081060.2011.651878
File-URL: http://hdl.handle.net/10.1080/03081060.2011.651878
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Handle: RePEc:taf:transp:v:35:y:2011:i:2:p:161-173
Template-Type: ReDIF-Article 1.0
Author-Name: Ming Zhong
Author-X-Name-First: Ming
Author-X-Name-Last: Zhong
Author-Name: Chaozhong Wu
Author-X-Name-First: Chaozhong
Author-X-Name-Last: Wu
Author-Name: John Douglas Hunt
Author-X-Name-First: John Douglas
Author-X-Name-Last: Hunt
Title: Gender differences in activity participation, time-of-day and duration choices: new evidence from Calgary
Abstract:
To date only limited research has quantified differences between female
and male activity patterns, and analyses at an individual activity level
are scarce. Past research has focused on investigating gender differences
in mobility levels based on observed travel patterns, especially those
related to commuting. This article reports new evidence based on analyses
of a household activity survey data-set collected from a Canadian city --
Calgary -- in 2001. Results show that contemporary females and males have
a very similar activity participation pattern. On the other hand, analyses
applied to activity starting times support the view that there are minor
gender differences in time-of-day choices. In addition, duration and
survival analyses through log-rank and Wilcoxon tests show that women and
men tend to spend more or less time on some of the 10 weekend/weekday
activities, and thus indicate that they share different domestic and
societal responsibilities: males tend to spend longer time for out-of-home
activities, such as work, school, social, and out-of-town; whereas females
contribute more to domestic work, including shopping, eating, and
religious activity. In general, this article contributes new evidence to
gender differences in activity participation, time-of-day, and duration
choices at the individual activity level. Such differences may influence
travelers’ time, mode, and location choices and thus have important
implications for the complexity of an activity-based modeling framework.
These implications are discussed along with recommendations for
incorporating gender differences in an activity-based modeling framework.
Journal: Transportation Planning and Technology
Pages: 175-190
Issue: 2
Volume: 35
Year: 2011
Month: 10
X-DOI: 10.1080/03081060.2011.651880
File-URL: http://hdl.handle.net/10.1080/03081060.2011.651880
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Handle: RePEc:taf:transp:v:35:y:2011:i:2:p:175-190
Template-Type: ReDIF-Article 1.0
Author-Name: D.E. Pitfield
Author-X-Name-First: D.E.
Author-X-Name-Last: Pitfield
Author-Name: R.E. Caves
Author-X-Name-First: R.E.
Author-X-Name-Last: Caves
Author-Name: M.A. Quddus
Author-X-Name-First: M.A.
Author-X-Name-Last: Quddus
Title: A three-stage least squares approach to the analysis of airline strategies for aircraft size and airline frequency on the north Atlantic: an airline case study
Abstract:
In response to increasing demand, airlines may increase capacity by
increasing the frequency of flights or they may choose to increase
aircraft size. This may yield operating cost economies. If the airports
they operate from are capacity constrained, they will be limited in the
extent that they can change frequency which will limit their ability to
compete with the number of frequencies offered. This article focuses on
this trade-off and pays particular attention to the practices of a
specific airline. Conclusions are offered on the impact of inter
alia competition, changes in aircraft technology, 9/11 and the
impact of slot constraints. It appears that changes in size are more
important than frequency, which is consistent with the presence of slot
constraints and there is a significant impact of competition. As the
concentration of carriers increases, so aircraft size falls. 9/11 also has
a significant impact on traffic whereas the introduction of the Boeing
777, as an illustration of a change in technology, does not.
Journal: Transportation Planning and Technology
Pages: 191-200
Issue: 2
Volume: 35
Year: 2011
Month: 10
X-DOI: 10.1080/03081060.2011.651882
File-URL: http://hdl.handle.net/10.1080/03081060.2011.651882
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Handle: RePEc:taf:transp:v:35:y:2011:i:2:p:191-200
Template-Type: ReDIF-Article 1.0
Author-Name: Taotao Deng
Author-X-Name-First: Taotao
Author-X-Name-Last: Deng
Author-Name: John D. Nelson
Author-X-Name-First: John D.
Author-X-Name-Last: Nelson
Title: The perception of Bus Rapid Transit: a passenger survey from Beijing Southern Axis BRT Line 1
Abstract:
Bus Rapid Transit (BRT) has emerged as a cost-effective transport system
for urban mobility. As a relatively new form of Mass Transit, its ability
to provide a high-quality transport service and potential to stimulate
land development remain largely unexplored. This study intends to
investigate the public attitude towards BRT services, as well as
respondents’ perception of living near BRT stations, using the
Beijing Southern Axis BRT system as a case study. A data-set of responses
to 525 questionnaires were assembled and analysed using a combination of
statistical techniques. The results show that BRT has gained great
popularity among passengers, and brought about a positive impact on the
attractiveness of residential property. The data identify that the
majority of passengers are work-related commuters and use BRT more than
once a day. The captive users have a higher satisfaction than choice users
with respect to reliability, comfort & cleanliness and overall
satisfaction with the BRT service. It is argued that the BRT has
significantly improved the attractiveness of residential property along
the BRT corridor.
Journal: Transportation Planning and Technology
Pages: 201-219
Issue: 2
Volume: 35
Year: 2011
Month: 10
X-DOI: 10.1080/03081060.2011.651885
File-URL: http://hdl.handle.net/10.1080/03081060.2011.651885
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Handle: RePEc:taf:transp:v:35:y:2011:i:2:p:201-219
Template-Type: ReDIF-Article 1.0
Author-Name: A. Azadeh
Author-X-Name-First: A.
Author-X-Name-Last: Azadeh
Author-Name: N. Neshat
Author-X-Name-First: N.
Author-X-Name-Last: Neshat
Author-Name: K. Rafiee
Author-X-Name-First: K.
Author-X-Name-Last: Rafiee
Author-Name: A.M. Zohrevand
Author-X-Name-First: A.M.
Author-X-Name-Last: Zohrevand
Title: An adaptive neural network-fuzzy linear regression approach for improved car ownership estimation and forecasting in complex and uncertain environments: the case of Iran
Abstract:
This paper applies a novel adaptive approach consisting of Artificial
Neural Network (ANN) and Fuzzy Linear Regression (FLR) to improve car
ownership forecasting in complex, ambiguous, and uncertain environments.
This integrated approach is applied to forecast car ownership in Iran from
1930 to 2007. In this study, the level of car ownership is viewed as the
result of demographic, politico-social, and urban structure factors
including average family size, total population density, urban population
density, urbanization rate, gross national product per capita, gasoline
price, and total road length. To capture the potential complexity,
uncertainty, and linearity relation between the car ownership function and
its determinants, ANN and FLR (including eight well-known FLR) approaches
are applied to the collected data. Next, the preferred ANN is selected
based on sensitivity analysis results for the test data while the
preferred FLR is identified with regard to ANOVA and MAPE results. The
results obtained from the performance comparison demonstrate the
considerable superiority of the preferred ANN over the preferred FLR
regarding the nonlinear and complex nature of the car ownership function
in Iran. This is the first study that presents an ANN-FLR approach for car
ownership forecasting capable of handling complexity and non-linearity,
uncertainty, pre-processing, and post-processing.
Journal: Transportation Planning and Technology
Pages: 221-240
Issue: 2
Volume: 35
Year: 2011
Month: 10
X-DOI: 10.1080/03081060.2011.651887
File-URL: http://hdl.handle.net/10.1080/03081060.2011.651887
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Handle: RePEc:taf:transp:v:35:y:2011:i:2:p:221-240
Template-Type: ReDIF-Article 1.0
Author-Name: Branko Vasic
Author-X-Name-First: Branko
Author-X-Name-Last: Vasic
Author-Name: Vladimir Popovic
Author-X-Name-First: Vladimir
Author-X-Name-Last: Popovic
Author-Name: Vukan R. Vuchic
Author-X-Name-First: Vukan R.
Author-X-Name-Last: Vuchic
Author-Name: Gradimir Danon
Author-X-Name-First: Gradimir
Author-X-Name-Last: Danon
Author-Name: Aleksandar Vencl
Author-X-Name-First: Aleksandar
Author-X-Name-Last: Vencl
Title: Defining the functional and physical compatibility of a modernized tramway rolling stock with a newly planned LRT system: a case study of Belgrade
Abstract:
According to the Belgrade Master Plan for 2021, the public transportation
system for the city and its region will include three rail modes: a
modernized existing tramway, regional rail, and a new light rail transit
(LRT) mode. In the coming years all three rail modes should be developed
simultaneously and in a coordinated manner. The introduction of LRT is to
be realized in several phases, and its first line will partially follow
the alignment of an existing tramway line. As the present tramway vehicles
are obsolete, new rolling stock must be designed and purchased to be
compatible with many of the elements of the LRT. Ways to adjust the new
tramways to the LRT rolling stock represent the central topic of this
paper. The basic technical and operating characteristics of the new
tramway are defined with respect to their required compatibility with the
LRT stock and infrastructure.
Journal: Transportation Planning and Technology
Pages: 241-261
Issue: 3
Volume: 35
Year: 2011
Month: 10
X-DOI: 10.1080/03081060.2012.671019
File-URL: http://hdl.handle.net/10.1080/03081060.2012.671019
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Handle: RePEc:taf:transp:v:35:y:2011:i:3:p:241-261
Template-Type: ReDIF-Article 1.0
Author-Name: M. Zudhy Irawan
Author-X-Name-First: M. Zudhy
Author-X-Name-Last: Irawan
Author-Name: Tomonori Sumi
Author-X-Name-First: Tomonori
Author-X-Name-Last: Sumi
Title: Motorcycle-based adolescents’ travel behaviour during the school morning commute and the effect of intra-household interaction on departure time and mode choice
Abstract:
We hypothesise that intra-household interaction influences home departure
time and mode choice for the morning commute. In Indonesia, over 71% of
vehicles on the road are motorcycles. This fact increases the significance
of household interaction in influencing transport mode choice since the
simplicity of the motorcycle allows a great degree of versatility in
regard to multiple family member transport. To emphasise this point, our
study focuses on the unique travel behaviour of adolescents during the
school morning commute which, due to the use of the motorcycle, is a
combination of the travel behaviour of accompanied children and escorting
adults. Our study discovers that adolescents are likely to shift their
school arrival time very early or close to the designated starting time in
relation to motorcycle-based parental escort to school. In regard to mode
choice, adolescent students prefer to be escorted by motorcycle rather
than take public transport.
Journal: Transportation Planning and Technology
Pages: 263-279
Issue: 3
Volume: 35
Year: 2011
Month: 10
X-DOI: 10.1080/03081060.2012.671024
File-URL: http://hdl.handle.net/10.1080/03081060.2012.671024
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Handle: RePEc:taf:transp:v:35:y:2011:i:3:p:263-279
Template-Type: ReDIF-Article 1.0
Author-Name: Mohamed El Esawey
Author-X-Name-First: Mohamed
Author-X-Name-Last: El Esawey
Author-Name: Tarek Sayed
Author-X-Name-First: Tarek
Author-X-Name-Last: Sayed
Title: A framework for neighbour links travel time estimation in an urban network
Abstract:
This paper proposes a solution to the problem of limited network sensor
coverage caused by insufficient sample size of probe vehicles or
inadequate numbers of fixed sensors. A framework is proposed to estimate
link travel times using available data from neighbouring links. Two clues
are used for real-time travel time estimation: link historical travel time
data and online travel time data from neighbour links. In the absence of
online travel time data from neighbour links, historical records only have
to be relied upon. However, where the two types of data are available, a
data fusion scheme can be applied to make use of the two clues. The
proposed framework is validated using real-life data from the City of
Vancouver, British Columbia. The estimation accuracy is found to be
comparable to the existing literature. Overall, the results demonstrate
the feasibility of using neighbour links data as an additional source of
information that might not have been extensively explored before.
Journal: Transportation Planning and Technology
Pages: 281-301
Issue: 3
Volume: 35
Year: 2011
Month: 10
X-DOI: 10.1080/03081060.2012.671028
File-URL: http://hdl.handle.net/10.1080/03081060.2012.671028
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Handle: RePEc:taf:transp:v:35:y:2011:i:3:p:281-301
Template-Type: ReDIF-Article 1.0
Author-Name: Lishan Sun
Author-X-Name-First: Lishan
Author-X-Name-Last: Sun
Author-Name: Jian Rong
Author-X-Name-First: Jian
Author-X-Name-Last: Rong
Author-Name: Liya Yao
Author-X-Name-First: Liya
Author-X-Name-Last: Yao
Author-Name: Hao Xu
Author-X-Name-First: Hao
Author-X-Name-Last: Xu
Author-Name: Hongchao Liu
Author-X-Name-First: Hongchao
Author-X-Name-Last: Liu
Title: Entropy-based estimation of transfers in a terminal
Abstract:
An intermodal transportation terminal is a facility that provides
commuters with easy transfer between transit modes and providers such as
buses, light rail, subway, taxis, airport shuttles, and commuter rail. The
probability of a passenger transferring from one mode to another and the
estimation of total transfer demand are of great importance to both
practitioners and researchers when determining optimal design alternatives
as well as the best control and management policies for daily operation of
the terminal. This article presents a study that uses an entropy-based
optimization approach to estimate the transfer demands between the
available transportation modes in an intermodal transportation terminal.
The development and calibration of the entropy model is presented in the
first part of the article, which is followed by a case study of the SiHui
Intermodal Terminal in Beijing, China.
Journal: Transportation Planning and Technology
Pages: 303-315
Issue: 3
Volume: 35
Year: 2011
Month: 10
X-DOI: 10.1080/03081060.2012.671038
File-URL: http://hdl.handle.net/10.1080/03081060.2012.671038
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Handle: RePEc:taf:transp:v:35:y:2011:i:3:p:303-315
Template-Type: ReDIF-Article 1.0
Author-Name: Partha Chakroborty
Author-X-Name-First: Partha
Author-X-Name-Last: Chakroborty
Author-Name: Pradeep Kumar Agarwal
Author-X-Name-First: Pradeep Kumar
Author-X-Name-Last: Agarwal
Author-Name: Animesh Das
Author-X-Name-First: Animesh
Author-X-Name-Last: Das
Title: Comprehensive pavement maintenance strategies for road networks through optimal allocation of resources
Abstract:
In order to maintain a growing road infrastructure at some minimum level
of service, substantial resources are required on a recurrent basis. Of
late, the available resources can no longer meet all the maintenance and
rehabilitation demand even in wealthy nations. Hence, there is a need to
develop a tool which will optimally allocate these resources in order to
keep the road infrastructure as ‘healthy’ as possible.
Further, this tool must acknowledge that maintenance needs are not only
restricted to structural aspects but also extend to the functional- and
safety-related aspects of a road. Here, such a comprehensive optimization
tool is developed which when used will optimally allocate resources in
order to maintain a healthy (from structural, functional, and safety
standpoints) road network. The problem of determining the optimum
maintenance and rehabilitation activities for individual road sections is
formulated as a linear integer programming problem. Results from a case
study using the proposed method show that the suggested maintenance and
rehabilitation plans make sense from engineering and economic
considerations.
Journal: Transportation Planning and Technology
Pages: 317-339
Issue: 3
Volume: 35
Year: 2011
Month: 10
X-DOI: 10.1080/03081060.2012.671044
File-URL: http://hdl.handle.net/10.1080/03081060.2012.671044
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Handle: RePEc:taf:transp:v:35:y:2011:i:3:p:317-339
Template-Type: ReDIF-Article 1.0
Author-Name: Liang Ye
Author-X-Name-First: Liang
Author-X-Name-Last: Ye
Author-Name: Patricia L. Mokhtarian
Author-X-Name-First: Patricia L.
Author-X-Name-Last: Mokhtarian
Author-Name: Giovanni Circella
Author-X-Name-First: Giovanni
Author-X-Name-Last: Circella
Title: Commuter impacts and behavior changes during a temporary freeway closure: the ‘Fix I-5’ project in Sacramento, California
Abstract:
One mile of Interstate 5 (I-5) in downtown Sacramento, California was
closed intermittently for reconstruction (‘the Fix project’)
over nine weeks in 2008. We analyze the impacts of the Fix on
commuters’ travel behavior, as measured through two contemporaneous
Internet-based surveys. The impacts of the Fix on traffic conditions do
not appear to have been excessive: majorities in all relevant subsamples
did not find conditions worse than usual, and sizable minorities actually
found them to be better. Among the active changes to commute trips, the
easiest options -- avoiding rush hour and changing route -- were the most
common (adopted by 48% and 44%, respectively). Among the changes that
reduced vehicle-miles traveled, increasing transit use and increasing
telecommuting (TC) were the most common (each adopted by 5--6% of the
relevant subsample). Binary logit models of these two choices suggest that
persuading current adopters to increase their frequency of use is easier
than convincing nonadopters to start TC or switch to transit. Women and
those in larger households were found to be more likely to increase TC and
transit use. Employer support of commute alternatives significantly
influenced the adoption of both strategies.
Journal: Transportation Planning and Technology
Pages: 341-371
Issue: 3
Volume: 35
Year: 2011
Month: 10
X-DOI: 10.1080/03081060.2012.673270
File-URL: http://hdl.handle.net/10.1080/03081060.2012.673270
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Handle: RePEc:taf:transp:v:35:y:2011:i:3:p:341-371
Template-Type: ReDIF-Article 1.0
Author-Name: Shu-Chuan Chen
Author-X-Name-First: Shu-Chuan
Author-X-Name-Last: Chen
Author-Name: Shih-Yao Kuo
Author-X-Name-First: Shih-Yao
Author-X-Name-Last: Kuo
Author-Name: Kuo-Wei Chang
Author-X-Name-First: Kuo-Wei
Author-X-Name-Last: Chang
Author-Name: Yi-Ting Wang
Author-X-Name-First: Yi-Ting
Author-X-Name-Last: Wang
Title: Improving the forecasting accuracy of air passenger and air cargo demand: the application of back-propagation neural networks
Abstract:
This study employs back-propagation neural networks (BPN) to improve the
forecasting accuracy of air passenger and air cargo demand from Japan to
Taiwan. The factors which influence air passenger and air cargo demand are
identified, evaluated and analysed in detail. The results reveal that some
factors influence both passenger and cargo demand, and the others only one
of them. The forecasting accuracy of air passenger and air cargo demand
has been improved efficiently by the proposed procedure to evaluate input
variables. The established model improves dramatically the forecasting
accuracy of air passenger demand with an extremely low mean absolute
percentage error (MAPE) of 0.34% and 7.74% for air cargo demand.
Journal: Transportation Planning and Technology
Pages: 373-392
Issue: 3
Volume: 35
Year: 2012
Month: 4
X-DOI: 10.1080/03081060.2012.673272
File-URL: http://hdl.handle.net/10.1080/03081060.2012.673272
File-Format: text/html
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Handle: RePEc:taf:transp:v:35:y:2012:i:3:p:373-392
Template-Type: ReDIF-Article 1.0
Author-Name: Mingyu Zhao
Author-X-Name-First: Mingyu
Author-X-Name-Last: Zhao
Author-Name: Nick Tyler
Author-X-Name-First: Nick
Author-X-Name-Last: Tyler
Author-Name: Cheng Lan
Author-X-Name-First: Cheng
Author-X-Name-Last: Lan
Title: What determines commute time choices? A structural equation modelling approach
Abstract:
Abstract Many researchers have been attracted by the
phenomenon of constant travel time, and the time spent on travel has been
an important indicator of understanding travellers’ behaviours.
This paper is based on a survey conducted in a university in London which
includes both objective and subjective variables in relation to commute
time and some demographic characteristics. Two conceptual structural
models are examined in order to explore the factors determining
travellers’ choices. Results of the analysis reveal some
interesting relationships: (1) a positive relationship between age and
commute time; (2) females are more likely to read or listen to music
during their journeys, and their ideal commute time (ICT) and current
commute time (CCT) generally tend to be longer; (3) academic staff tend to
have the habit of working during their commute, administrative staff tend
to commute longer while students tend to spend a shorter time commuting;
(4) normally, a habit while travelling is significantly associated with
CCT; those with a habit of reading or working during their commute journey
tend to have longer commute times and (5) the relationship between CCT and
commuters’ ICT and tolerable commute time is positive; both
hypothesised causal relationships are significant so that a loop is formed
between subjective and objective variables, and thus a dynamic modelling
process could be envisaged as temporal sequences of those variables.
Journal: Transportation Planning and Technology
Pages: 393-408
Issue: 4
Volume: 35
Year: 2012
Month: 1
X-DOI: 10.1080/03081060.2012.680809
File-URL: http://hdl.handle.net/10.1080/03081060.2012.680809
File-Format: text/html
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Handle: RePEc:taf:transp:v:35:y:2012:i:4:p:393-408
Template-Type: ReDIF-Article 1.0
Author-Name: Md. Tazul Islam
Author-X-Name-First: Md. Tazul
Author-X-Name-Last: Islam
Author-Name: Khandker M. Nurul Habib
Author-X-Name-First: Khandker M. Nurul
Author-X-Name-Last: Habib
Title: Unraveling the relationship between trip chaining and mode choice: evidence from a multi-week travel diary
Abstract:
Abstract Trip chaining (or tours) and mode choice are two
critical factors influencing a variety of patterns of urban travel demand.
This paper investigates the hierarchical relationship between these two
sets of decisions including the influences of socio-demographic
characteristics on them. It uses a 6-week travel diary collected in
Thurgau, Switzerland, in 2003. The structural equation modeling technique
is applied to identify the hierarchical relationship. Hierarchy and
temporal consistency of the relationship is investigated separately for
work versus non-work tours. It becomes clear that for work tours in
weekdays, trip-chaining and mode choice decisions are simultaneous and
remain consistent across the weeks. For non-work tours in weekdays, mode
choice decisions precede trip-chaining decisions. However, for non-work
tours in weekends, trip-chaining decisions precede mode choice decisions.
A number of socioeconomic characteristics also play major roles in
influencing the relationships. Results of the investigation challenge the
traditional approach of modeling mode choice separately from
activity-scheduling decisions.
Journal: Transportation Planning and Technology
Pages: 409-426
Issue: 4
Volume: 35
Year: 2012
Month: 1
X-DOI: 10.1080/03081060.2012.680812
File-URL: http://hdl.handle.net/10.1080/03081060.2012.680812
File-Format: text/html
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Handle: RePEc:taf:transp:v:35:y:2012:i:4:p:409-426
Template-Type: ReDIF-Article 1.0
Author-Name: P.N. Smith
Author-X-Name-First: P.N.
Author-X-Name-Last: Smith
Title: Applications of intuitionistic fuzzy set aggregation operators in transport multi-factor project evaluation
Abstract:
Abstract An intuitionistic fuzzy set (IFS) is a
generalisation of a fuzzy set characterised by a truth membership function
and a false membership function. The former is a lower bound on the grade
of membership of the evidence in favour of a particular element belonging
to the set and the latter is a lower bound on the negation of that element
belonging to the set derived from evidence against that element belonging
to the set. A similar concept is a vague set, though vague sets have been
shown to be identical to IFSs. In the context of project evaluation, an
IFS may be used to represent the degree to which a project satisfies a
criterion and the degree to which it does not. Aggregation of such IFSs
has been considered in recent years to identify a best project in terms of
several criteria or factors. A particular desirable way to aggregate IFS
is in terms of an ordered weighted average (OWA) which can be expressed in
different forms such as arithmetic and geometric. In an OWA operator,
weights are applied to the position of an element in the aggregation. In
addition, hybrid OWA operators may be developed to not only weight the
position of elements in the aggregation but the element itself. An example
is given relating to the Kuranda Range Road upgrade (Queensland,
Australia) which is limited by grade, poor overtaking opportunities, poor
horizontal alignment and other constraints and the road is expected to
become increasingly congested over the next few years. A more flexible
multi-factor decision method is used to identify a ‘best’
project from a set of four alternative projects.
Journal: Transportation Planning and Technology
Pages: 427-447
Issue: 4
Volume: 35
Year: 2012
Month: 1
X-DOI: 10.1080/03081060.2012.680815
File-URL: http://hdl.handle.net/10.1080/03081060.2012.680815
File-Format: text/html
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Handle: RePEc:taf:transp:v:35:y:2012:i:4:p:427-447
Template-Type: ReDIF-Article 1.0
Author-Name: Shan Huang
Author-X-Name-First: Shan
Author-X-Name-Last: Huang
Author-Name: Liya Guo
Author-X-Name-First: Liya
Author-X-Name-Last: Guo
Author-Name: Yan Yang
Author-X-Name-First: Yan
Author-X-Name-Last: Yang
Author-Name: Irene Casas
Author-X-Name-First: Irene
Author-X-Name-Last: Casas
Author-Name: Adel W. Sadek
Author-X-Name-First: Adel W.
Author-X-Name-Last: Sadek
Title: Dynamic demand estimation and microscopic traffic simulation of a university campus transportation network
Abstract:
Abstract This article documents the authors' experience
with the modeling, simulation, and analysis of a university transportation
system, using the TRansportation ANalysis and SIMulation System
(TRANSIMS). The processes of data preparation and network coding are
described, followed by the algorithm developed to estimate the dynamic
24-hour demand, which includes a procedure for estimating the
‘desirability’ of the different parking lots from readily
available data. The dynamic demand estimation algorithm is validated by
comparing estimated and observed parking lot occupancies, where it is
shown that the algorithm is capable of replicating observed results.
Finally, an example is included to demonstrate how the developed model can
be used in campus transportation planning. Besides serving as a first case
study for using TRANSIMS to model a university campus, the study's
contributions include the development of a procedure for parking lot
desirability ranking and a practical procedure for estimating dynamic
demand on university campuses.
Journal: Transportation Planning and Technology
Pages: 449-467
Issue: 4
Volume: 35
Year: 2012
Month: 1
X-DOI: 10.1080/03081060.2012.680818
File-URL: http://hdl.handle.net/10.1080/03081060.2012.680818
File-Format: text/html
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Handle: RePEc:taf:transp:v:35:y:2012:i:4:p:449-467
Template-Type: ReDIF-Article 1.0
Author-Name: Tracy Ross
Author-X-Name-First: Tracy
Author-X-Name-Last: Ross
Author-Name: Valerie A. Mitchell
Author-X-Name-First: Valerie A.
Author-X-Name-Last: Mitchell
Author-Name: Andrew J. May
Author-X-Name-First: Andrew J.
Author-X-Name-Last: May
Title: Bottom-up grassroots innovation in transport: motivations, barriers and enablers
Abstract:
Abstract There is a growing phenomenon of grassroots
innovation, that is, that triggered by individual users or communities
(physical or virtual) seeking a solution to a personal or societal
problem. This has great potential as a new source of sustainable transport
innovations, but has received little attention to date. This study
conducted 16 in-depth interviews and a workshop with grassroots innovators
in transport. A detailed thematic analysis of the interview data
identified: catalysts for the idea and the motivation behind its pursuit;
the barriers experienced (those that were overcome and those that were
not); and the enablers that permitted the innovations to continue and to
flourish. The paper concludes by identifying the conditions that need to
exist for such innovations to be created, developed and exploited in order
that their potential for increasing the sustainability of the transport
system can be fulfilled.
Journal: Transportation Planning and Technology
Pages: 469-489
Issue: 4
Volume: 35
Year: 2012
Month: 1
X-DOI: 10.1080/03081060.2012.680820
File-URL: http://hdl.handle.net/10.1080/03081060.2012.680820
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Handle: RePEc:taf:transp:v:35:y:2012:i:4:p:469-489
Template-Type: ReDIF-Article 1.0
Author-Name: Z.N. Chen
Author-X-Name-First: Z.N.
Author-X-Name-Last: Chen
Author-Name: C.K.M. Lee
Author-X-Name-First: C.K.M.
Author-X-Name-Last: Lee
Author-Name: W.H. Ip
Author-X-Name-First: W.H.
Author-X-Name-Last: Ip
Author-Name: G.T.S. Ho
Author-X-Name-First: G.T.S.
Author-X-Name-Last: Ho
Title: Design and evaluation of an integrated inventory and transportation system
Abstract:
This paper proposes the adoption of an integrated inventory and
transportation system (IITS) to minimize the total costs of inventory and
transportation. A non-linear programing is developed by analyzing
transportation and inventory costs with one supplier and many retailers in
the distribution environment. The paper compares the proposed model with
the traditional approach in computing total costs with numerical data. The
results indicate that the total costs can be optimized by adopting
integrated programing rather than the traditional approach, along with
achieving improved customer service levels. In particular, sensitivity
analysis is applied to determine the performance of the IITS under various
transportation costs, holding costs and shortage costs. It shows that the
transportation cost per unit is most sensitive in the proposed model. In
this situation, the IITS is more effective for cost saving when set-up
cost, holding and shortage costs are high, but is less effective for
situations involving high per-unit transportation costs.
Journal: Transportation Planning and Technology
Pages: 491-507
Issue: 4
Volume: 35
Year: 2012
Month: 1
X-DOI: 10.1080/03081060.2012.680821
File-URL: http://hdl.handle.net/10.1080/03081060.2012.680821
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Handle: RePEc:taf:transp:v:35:y:2012:i:4:p:491-507
Template-Type: ReDIF-Article 1.0
Author-Name: Jasmine Siu Lee Lam
Author-X-Name-First: Jasmine Siu Lee
Author-X-Name-Last: Lam
Author-Name: Jing Dai
Author-X-Name-First: Jing
Author-X-Name-Last: Dai
Title: A decision support system for port selection
Abstract:
Abstract A number of studies have been carried out on the
factors determining port choice, derived from the perspectives of
shippers, carriers or both. Recently, some studies using multi-criteria
analysis, more specifically Saaty's analytical hierarchy process (AHP),
have been undertaken to address port competitiveness and port selection by
shipping lines. Based on a review of the literature on port selection,
this article proposes a decision support system (DSS) for port selection
using AHP methodology. The proposed DSS is web-based and thus it can be
accessed by more decision makers and data collection can be carried out
faster. Moreover, AHP addresses the issue of how to structure a complex
decision problem, identify its criteria, measure the interaction among
them and finally synthesise all the information to arrive at priorities,
which depict preferences. AHP is able to assist port managers in obtaining
a detailed understanding of the criteria and address the port selection
problem utilising multi-criteria analysis. This article presents the
architecture and the port selection procedure of the web-based DSS, and
then illustrates three different cases. It shows how technology
advancement can bring positive effects of strategic planning to shipping
firms.
Journal: Transportation Planning and Technology
Pages: 509-524
Issue: 4
Volume: 35
Year: 2012
Month: 1
X-DOI: 10.1080/03081060.2012.680822
File-URL: http://hdl.handle.net/10.1080/03081060.2012.680822
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Handle: RePEc:taf:transp:v:35:y:2012:i:4:p:509-524
Template-Type: ReDIF-Article 1.0
Author-Name: Xenia Karekla
Author-X-Name-First: Xenia
Author-X-Name-Last: Karekla
Author-Name: Nick Tyler
Author-X-Name-First: Nick
Author-X-Name-Last: Tyler
Title: Reduced dwell times resulting from train--platform improvements: the costs and benefits of improving passenger accessibility to metro trains
Abstract:
Abstract This paper examines whether a dwell time
reduction on a high-intensity metro service, as a result of a series of
accessibility enhancements, can contribute to an increased level of
service and accessible public transport for passengers together with a
reduction in costs for the operator. Actual train operation data were
collected by on-site observations and from London Underground Ltd. A
simple simulation is built to represent the effect on the overall cycle
times of trains if certain parameters (e.g. dwell time) are changed. Four
models are developed, concerning: (1) step height between train and
platform, (2) an assumption of passenger service time to be no longer than
20 s, (3) door width and (4) the combination of step height and door
width. From the application of the models it appears that the fourth model
provides the highest reduction in dwell time and diminishes the overall
cycle times of trains. However, it is the most expensive to implement as
it requires work to raise platforms and the purchase of new rolling stock.
Journal: Transportation Planning and Technology
Pages: 525-543
Issue: 5
Volume: 35
Year: 2012
Month: 1
X-DOI: 10.1080/03081060.2012.693267
File-URL: http://hdl.handle.net/10.1080/03081060.2012.693267
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Handle: RePEc:taf:transp:v:35:y:2012:i:5:p:525-543
Template-Type: ReDIF-Article 1.0
Author-Name: Bingfeng Si
Author-X-Name-First: Bingfeng
Author-X-Name-Last: Si
Author-Name: Ming Zhong
Author-X-Name-First: Ming
Author-X-Name-Last: Zhong
Author-Name: Liang Gao
Author-X-Name-First: Liang
Author-X-Name-Last: Gao
Author-Name: Ziyou Gao
Author-X-Name-First: Ziyou
Author-X-Name-Last: Gao
Title: Hierarchical network-based equilibrium model and algorithm for a mixed-traffic urban transport system
Abstract:
Abstract Many equilibrium models and algorithms based on
homogeneous motorized traffic have been devised to model urban transport
systems in developed countries, but they are inadequate when it comes to
represent mixed-traffic urban transport systems, including automobiles,
transit, bicycles, and pedestrians, in developing countries such as China
or India. In these cases, traffic flow on a road segment is an aggregated
result of travellers' combined mode/route choices and corresponding
interactions. Therefore, a special assignment model and algorithm are
needed for modeling these distinct behaviors. In this article, the
structure of a mixed-traffic urban transport system is analyzed and then
expanded and represented using a hierarchical network model based on graph
theory. Based on the analysis of travelers' combined mode/route choices,
generalized travel cost functions and link impedance functions for
different modes are formulated, where the interferences between different
modes on the same road segments are taken into account. Due to the
‘asymmetric’ nature of these functions, a variational
inequality model is proposed to represent the equilibrium assignment
problem in a mixed-traffic urban transport system. The corresponding
solution algorithm is also presented. Finally, a numerical example is
provided to illustrate the practicality of the proposed model and
algorithm.
Journal: Transportation Planning and Technology
Pages: 545-559
Issue: 5
Volume: 35
Year: 2012
Month: 3
X-DOI: 10.1080/03081060.2012.693268
File-URL: http://hdl.handle.net/10.1080/03081060.2012.693268
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Handle: RePEc:taf:transp:v:35:y:2012:i:5:p:545-559
Template-Type: ReDIF-Article 1.0
Author-Name: Khandker M. Nurul Habib
Author-X-Name-First: Khandker M. Nurul
Author-X-Name-Last: Habib
Author-Name: Md. Hamid Zaman
Author-X-Name-First: Md. Hamid
Author-X-Name-Last: Zaman
Title: Effects of incorporating latent and attitudinal information in mode choice models
Abstract:
Abstract Hybrid choice modelling approaches allow latent
variables in mode choice utility functions to be addressed. However,
defining attitude and behavior as latent variables is influenced by the
researcher's assumptions. Therefore, it is better to capture the effects
of latent behavioral and attitudinal factors as latent variables than
defining behaviors and attitudes per se. This article uses a hybrid choice
model for capturing such latent effects, which will herein be referred to
as modal captivity effects in commuting mode choice. Latent modal
captivity refers to the unobserved and apparently unexplained attraction
towards a specific mode of transportation that is resulting from latent
attitude and behavior of passengers in addition to the urban
transportation system. In empirical models, the latent modal captivity
variables are explained as functions of different observed variables.
Empirical models show significant improvement in fitting observed data as
well as improved understanding of travel behavior.
Journal: Transportation Planning and Technology
Pages: 561-576
Issue: 5
Volume: 35
Year: 2012
Month: 6
X-DOI: 10.1080/03081060.2012.701815
File-URL: http://hdl.handle.net/10.1080/03081060.2012.701815
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Handle: RePEc:taf:transp:v:35:y:2012:i:5:p:561-576
Template-Type: ReDIF-Article 1.0
Author-Name: Rongfang Liu
Author-X-Name-First: Rongfang
Author-X-Name-Last: Liu
Author-Name: Andy Li
Author-X-Name-First: Andy
Author-X-Name-Last: Li
Title: Forecasting high-speed rail ridership using a simultaneous modeling approach
Abstract:
Abstract The newly launched, June 2009, US High-Speed
Intercity Passenger Rail Program has rekindled a renewed interest in
forecasting high-speed rail (HSR) ridership. The first step to the
concerted effort by the federal, state, rail, and other related agencies
to develop a nationwide HSR network is the development of credible
approaches to forecast the ridership. This article presents a nested
logit/simultaneous choice model to improve the demand forecast in the
context of intercity travel. In addition to incorporating the
interrelationship between trip generation and mode choice decisions, the
simultaneous model also provides a platform for the same utility function
flowing between both the decision-making processes. Using American Travel
Survey data, supplemented by various mode parameters, the proposed model
improves the forecast accuracy and confirms the significant impact of
travel costs on both mode choice and trip generation. Furthermore, the
cross elasticity of mode choice and trip generation related to travel
costs and other modal characteristics may shed some light on
transportation policies in the area of intercity travel, especially in
anticipation of HSR development.
Journal: Transportation Planning and Technology
Pages: 577-590
Issue: 5
Volume: 35
Year: 2012
Month: 6
X-DOI: 10.1080/03081060.2012.701816
File-URL: http://hdl.handle.net/10.1080/03081060.2012.701816
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Handle: RePEc:taf:transp:v:35:y:2012:i:5:p:577-590
Template-Type: ReDIF-Article 1.0
Author-Name: Xueming Chen
Author-X-Name-First: Xueming
Author-X-Name-Last: Chen
Title: Statistical and activity-based modeling of university student travel behavior
Abstract:
Abstract This paper conducts a statistical analysis of
student travel behavior at Virginia Commonwealth University (VCU). The
data source is the ‘University NHTS’ project launched by the
Virginia Department of Transportation (VDOT) in 2009. Through this
empirical study, it has been found that university student travel behavior
is different from that of the general population; urban universities have
lower percentages of nonmotorized trips than college-town universities;
undergraduate students are likely to make more daily trips than graduate
students -- similarly, on-campus students make more frequent trips than
off-campus students; the most frequent student activities are home and
academic activities; and student group categories have virtually no impact
on daily activity profiles, though activity types do have a dramatic
impact on daily activity profiles. Based on these research findings, the
paper makes a series of recommendations regarding trip generation, trip
distribution, mode choice, and activity-based modeling.
Journal: Transportation Planning and Technology
Pages: 591-610
Issue: 5
Volume: 35
Year: 2012
Month: 3
X-DOI: 10.1080/03081060.2012.701818
File-URL: http://hdl.handle.net/10.1080/03081060.2012.701818
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Handle: RePEc:taf:transp:v:35:y:2012:i:5:p:591-610
Template-Type: ReDIF-Article 1.0
Author-Name: Avijit Mukherjee
Author-X-Name-First: Avijit
Author-X-Name-Last: Mukherjee
Author-Name: Mark Hansen
Author-X-Name-First: Mark
Author-X-Name-Last: Hansen
Author-Name: Shon Grabbe
Author-X-Name-First: Shon
Author-X-Name-Last: Grabbe
Title: Ground delay program planning under uncertainty in airport capacity
Abstract:
Abstract This paper presents an algorithm for assigning
flight departure delays under probabilistic airport capacity. The
algorithm dynamically adapts to weather forecasts by revising, if
necessary, departure delays. The proposed algorithm leverages
state-of-the-art optimization techniques that have appeared in recent
literature. As a case study, the algorithm is applied to assigning
departure delays to flights scheduled to arrive at San Francisco
International Airport in the presence of uncertainty in the fog clearance
time. The cumulative distribution function of fog clearance time was
estimated from historical data. Using daily weather forecasts to update
the probabilities of fog clearance times resulted in improvement of the
algorithm's performance. Experimental results also indicate that if the
proposed algorithm is applied to assign ground delays to flights inbound
at San Francisco International airport, overall delays could be reduced up
to 25% compared to current level.
Journal: Transportation Planning and Technology
Pages: 611-628
Issue: 6
Volume: 35
Year: 2012
Month: 6
X-DOI: 10.1080/03081060.2012.710031
File-URL: http://hdl.handle.net/10.1080/03081060.2012.710031
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Handle: RePEc:taf:transp:v:35:y:2012:i:6:p:611-628
Template-Type: ReDIF-Article 1.0
Author-Name: C. Juan
Author-X-Name-First: C.
Author-X-Name-Last: Juan
Author-Name: F. Olmos
Author-X-Name-First: F.
Author-X-Name-Last: Olmos
Author-Name: R. Ashkeboussi
Author-X-Name-First: R.
Author-X-Name-Last: Ashkeboussi
Title: Flexible strategic planning of transport systems
Abstract:
Abstract This paper presents a decision support
methodology for long-range planning of transport systems that exhibits
strategic flexibility and stochastic system parameters. Unlike one-off
strategic decisions, flexible decisions should be dynamically reformulated
with time. The proposed methodology is based on the construction of a tree
structure of multiple interlinked tactical planning problems, each
associated with a scenario in the tree, where problems under scenarios at
intermediate dates incorporate in their formulation the solution of the
corresponding problems associated with past (future) connected scenarios.
The resulting tree structure of interconnected planning decisions becomes
a strategic-tactical decision support system that allows managers to
formulate suitable flexible strategic decisions that mitigate the
consequences associated with downside scenarios while taking advantage of
the upside opportunities. The methodology is applied to the planning of a
fleet deployment through charter contracts where contract prices depend on
both market behavior and the duration of the contract itself.
Journal: Transportation Planning and Technology
Pages: 629-662
Issue: 6
Volume: 35
Year: 2012
Month: 6
X-DOI: 10.1080/03081060.2012.710032
File-URL: http://hdl.handle.net/10.1080/03081060.2012.710032
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Handle: RePEc:taf:transp:v:35:y:2012:i:6:p:629-662
Template-Type: ReDIF-Article 1.0
Author-Name: Carlos Pestana Barros
Author-X-Name-First: Carlos Pestana
Author-X-Name-Last: Barros
Author-Name: Nicolas Peypoch
Author-X-Name-First: Nicolas
Author-X-Name-Last: Peypoch
Title: Productivity assessment of African seaports with biased technological change
Abstract:
Abstract This paper analyses the productivity of a
representative sample of African seaports from 2002 to 2008. Productivity
scores are decomposed, based on the Luenberger productivity indicator, and
the nature of technological change is analysed. The paper finds that
Nigerian seaports are the most efficient, followed by Angola and
Mozambique. Discussions of the results as well as related policy
implications are provided.
Journal: Transportation Planning and Technology
Pages: 663-675
Issue: 6
Volume: 35
Year: 2012
Month: 5
X-DOI: 10.1080/03081060.2012.710033
File-URL: http://hdl.handle.net/10.1080/03081060.2012.710033
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Handle: RePEc:taf:transp:v:35:y:2012:i:6:p:663-675
Template-Type: ReDIF-Article 1.0
Author-Name: Marne Lieggio Junior
Author-X-Name-First: Marne
Author-X-Name-Last: Lieggio Junior
Author-Name: Sérgio Ronaldo Granemann
Author-X-Name-First: Sérgio Ronaldo
Author-X-Name-Last: Granemann
Author-Name: Osmar Ambrósio de Souza
Author-X-Name-First: Osmar Ambrósio
Author-X-Name-Last: de Souza
Author-Name: Carlos Henrique Rocha
Author-X-Name-First: Carlos Henrique
Author-X-Name-Last: Rocha
Title: Transportation of dangerous goods by road: the Brazilian case for selection of carriers based on a risk management methodology
Abstract:
Abstract This article applies a methodology for selecting
carriers for the transportation of dangerous goods by road, with a special
focus on risk management aspects. The methodology makes use of Stated
Preference techniques and verifies the most critical risk-related
variables influencing decision-making from the shippers' point of view. It
embraces the planning and execution stages, an evaluation of the
contracted company and a feedback process. The methodology was effectively
applied to the case of liquid fuel shippers in the Brazilian middle-west
region where it proved possible to identify which dangerous goods road
transport company to contract in accordance with the risk management
factors selected by the decision makers.
Journal: Transportation Planning and Technology
Pages: 677-696
Issue: 7
Volume: 35
Year: 2012
Month: 7
X-DOI: 10.1080/03081060.2012.718155
File-URL: http://hdl.handle.net/10.1080/03081060.2012.718155
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Handle: RePEc:taf:transp:v:35:y:2012:i:7:p:677-696
Template-Type: ReDIF-Article 1.0
Author-Name: Ming-Miin Yu
Author-X-Name-First: Ming-Miin
Author-X-Name-Last: Yu
Title: Performance assessment of transport services with the ERM-NDEA model: evidence from a domestic airline in Taiwan
Abstract:
Abstract This paper estimates comprehensive operational
performance measures for transport services. A network efficiency approach
is used to analyze the production efficiency, service efficiency, and
operational efficiency in a unified framework to reflect the
transportation service characteristics of airline operations. We show how
a modified version of the network data envelopment analysis model can be
utilized for evaluating the performance of air route operations. This
study considers 15 air routes operated by a domestic airline in Taiwan to
highlight the value of the approach. The results of the analysis show the
inputs and consumed outputs leading to production inefficiency and service
inefficiency respectively as well as the magnitudes of excesses and
shortfalls.
Journal: Transportation Planning and Technology
Pages: 697-714
Issue: 7
Volume: 35
Year: 2012
Month: 7
X-DOI: 10.1080/03081060.2012.718158
File-URL: http://hdl.handle.net/10.1080/03081060.2012.718158
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Handle: RePEc:taf:transp:v:35:y:2012:i:7:p:697-714
Template-Type: ReDIF-Article 1.0
Author-Name: Hooi Ling Khoo
Author-X-Name-First: Hooi Ling
Author-X-Name-Last: Khoo
Author-Name: Ghim Ping Ong
Author-X-Name-First: Ghim Ping
Author-X-Name-Last: Ong
Author-Name: Wooi Chen Khoo
Author-X-Name-First: Wooi Chen
Author-X-Name-Last: Khoo
Title: Short-term impact analysis of fuel price policy change on travel demand in Malaysian cities
Abstract:
Abstract Malaysia is one of the few countries in the world
that provides a fuel subsidy to consumers. Due to the recent economic
crisis, the Malaysian Government decided to revise its fuel subsidization
policy from a fixed price subsidy to a floating price subsidy dependent on
global oil demand. Recognizing that the change in fuel subsidization
policy can have an impact on travel behavior, this article investigates
the short-term impact of the policy change on private and public
transportation in the Klang Valley region of Malaysia. Spectral analyses
are performed to investigate if the policy change has an impact on private
vehicle travel demand, measured in terms of road traffic, and short-term
travel demand elasticity with respect to fuel price is estimated. To
measure the impact on the public transportation system, the demand
cross-elasticity values of rail transit and buses are also estimated. It
was found that traffic flow reduces with an increase in fuel price,
although elasticity and cross-elasticity values obtained are low. The
article finds that there is a potential mode shift from private vehicles
to rail transit with increasing fuel price. It is demonstrated that
reducing fuel price subsidy can be an effective travel demand management
strategy to alleviate congestion.
Journal: Transportation Planning and Technology
Pages: 715-736
Issue: 7
Volume: 35
Year: 2012
Month: 5
X-DOI: 10.1080/03081060.2012.710039
File-URL: http://hdl.handle.net/10.1080/03081060.2012.710039
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Handle: RePEc:taf:transp:v:35:y:2012:i:7:p:715-736
Template-Type: ReDIF-Article 1.0
Author-Name: Austin Troy
Author-X-Name-First: Austin
Author-X-Name-Last: Troy
Author-Name: Dale Azaria
Author-X-Name-First: Dale
Author-X-Name-Last: Azaria
Author-Name: Brian Voigt
Author-X-Name-First: Brian
Author-X-Name-Last: Voigt
Author-Name: Adel Sadek
Author-X-Name-First: Adel
Author-X-Name-Last: Sadek
Title: Integrating a traffic router and microsimulator into a land use and travel demand model
Abstract:
Abstract This paper describes one of the first known
attempts at integrating a dynamic and disaggregated land-use model with a
traffic microsimulator and compares its predictions of land use to those
from an integration of the same land-use model with a more traditional
four-step travel demand model. For our study area of Chittenden County,
Vermont, we used a 40-year simulation beginning in 1990. Predicted
differences in residential units between models for 2030 broken down by
town correlated significantly with predicted differences in accessibility.
The two towns with the greatest predicted differences in land use and
accessibility are also the towns that currently have the most severe
traffic bottlenecks and poorest route redundancy. Our results suggest that
this particular integration of a microsimulator with a disaggregated
land-use model is technically feasible, but that in the context of an
isolated, small metropolitan area, the differences in predicted land use
are small.
Journal: Transportation Planning and Technology
Pages: 737-751
Issue: 8
Volume: 35
Year: 2012
Month: 7
X-DOI: 10.1080/03081060.2012.739308
File-URL: http://hdl.handle.net/10.1080/03081060.2012.739308
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Handle: RePEc:taf:transp:v:35:y:2012:i:8:p:737-751
Template-Type: ReDIF-Article 1.0
Author-Name: Nicolás Garrido
Author-X-Name-First: Nicolás
Author-X-Name-Last: Garrido
Title: Computing the cost of traffic congestion: a microsimulation exercise of the City of Antofagasta, Chile
Abstract:
Abstract This paper computes the cost of traffic
congestion in the city of Antofagasta in Chile. A microsimulation is
implemented where all the agents of the system travel across the transport
network. The congestion cost is computed through the aggregation of the
opportunity cost of people waiting within the transport system, as a
consequence of traffic congestion. Monte Carlo experiments produced an
approximated congestion cost of US$1.02 million during a typical working
day. Moreover, the simulation provides useful information about the
average traveling time for the 14 districts of the city.
Journal: Transportation Planning and Technology
Pages: 752-768
Issue: 8
Volume: 35
Year: 2012
Month: 12
X-DOI: 10.1080/03081060.2012.739309
File-URL: http://hdl.handle.net/10.1080/03081060.2012.739309
File-Format: text/html
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Handle: RePEc:taf:transp:v:35:y:2012:i:8:p:752-768
Template-Type: ReDIF-Article 1.0
Author-Name: Chih-Ching Yang
Author-X-Name-First: Chih-Ching
Author-X-Name-Last: Yang
Title: Productivity changes in Taiwan's port industry incorporating environmental regulations on harbor water quality
Abstract:
Abstract This paper evaluates the productivity changes in
Taiwan's port industry for the period 2003--2007. Based on a
‘three-year-window’ data envelopment analysis method,
Luenberger productivity indicators are employed to estimate the
productivity changes that account for the success of attempts by port
agents to control harbor water quality. This is one of the typical
environmental concerns in port operations that prior studies on port
productivity changes over time have not considered. The results show that
the productivity of Taiwan's port industry has experienced growth over the
study period, regardless of whether water quality has been considered or
not. At a disaggregated level, however, if a port agent has succeeded in
controlling water quality, but we do not consider it, the results will
misclassify the agent by understating the port's productivity.
Journal: Transportation Planning and Technology
Pages: 769-789
Issue: 8
Volume: 35
Year: 2012
Month: 12
X-DOI: 10.1080/03081060.2012.739310
File-URL: http://hdl.handle.net/10.1080/03081060.2012.739310
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Handle: RePEc:taf:transp:v:35:y:2012:i:8:p:769-789
Template-Type: ReDIF-Article 1.0
Author-Name: Athanasios Katsaros
Author-X-Name-First: Athanasios
Author-X-Name-Last: Katsaros
Author-Name: Voula Psaraki
Author-X-Name-First: Voula
Author-X-Name-Last: Psaraki
Title: Slot misuse phenomena in capacity-constrained airports with seasonal demand: the Greek experience
Abstract:
Abstract Airport slot misuse disturbs the efficient and
continuous operation of capacity-constrained airports, leading to
congestion and delay problems. Deviations from the coordinated schedule in
regional airport systems that feature seasonal demand and delays in
certain peak periods are studied in this article. The Greek airport system
is considered as a case study. Deviations are quantified by computing the
difference between scheduled and actual aircraft arrival times as well as
the hourly slot capacity utilization ratio. Two collective indicators for
airport benchmarking are proposed. An in-depth analysis of slot allocation
deviations and the delays they cause is carried out for a representative
sample of airports that are classified according to the proposed
indicators. A brief discussion on potential measures to mitigate slot
misuse is also presented.
Journal: Transportation Planning and Technology
Pages: 790-806
Issue: 8
Volume: 35
Year: 2012
Month: 6
X-DOI: 10.1080/03081060.2012.701808
File-URL: http://hdl.handle.net/10.1080/03081060.2012.701808
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Handle: RePEc:taf:transp:v:35:y:2012:i:8:p:790-806
Template-Type: ReDIF-Article 1.0
Author-Name: Stephen Ison
Author-X-Name-First: Stephen
Author-X-Name-Last: Ison
Author-Name: John D. Nelson
Author-X-Name-First: John D.
Author-X-Name-Last: Nelson
Title: Universities' Transport Study Group UK Annual Conference 2012
Journal: Transportation Planning and Technology
Pages: 1-3
Issue: 1
Volume: 36
Year: 2013
Month: 2
X-DOI: 10.1080/03081060.2012.752944
File-URL: http://hdl.handle.net/10.1080/03081060.2012.752944
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Handle: RePEc:taf:transp:v:36:y:2013:i:1:p:1-3
Template-Type: ReDIF-Article 1.0
Author-Name: Moataz Mahmoud
Author-X-Name-First: Moataz
Author-X-Name-Last: Mahmoud
Author-Name: Julian Hine
Author-X-Name-First: Julian
Author-X-Name-Last: Hine
Title: Using AHP to measure the perception gap between current and potential users of bus services
Abstract:
Abstract This study develops a multicriteria evaluation of
user perception towards bus transit services and measures the gap in the
perceptions held by current and potential users. A review of the transport
quality literature indicates that both preference and satisfaction
measures have been implemented to provide a comprehensive perception-based
evaluation of bus quality. Although attempts have been made to evaluate
user perception through a separate analysis of each (preference and/or
satisfaction), the application of multicriteria quality measures are
limited. A multicriteria quality measure not only offers more than just
information on the daily experience of users but also knowledge of the
internal process of quality evaluation (drivers/barriers). The
multicriteria measure utilises the data of 512 questionnaires, whereby
user perceptions were expressed through judgments of importance and
satisfaction based on a set of 29 quality indicators classified into six
attributes. Firstly, the study develops analytical hierarchy process (AHP)
models to measure user preference. Secondly, a weighted perception index
(WPI) of both preference and satisfaction is developed through a
multicriteria model. Finally, multivariate analysis of variance (MANOVA)
is conducted to identify the level of variation in the perception of both
current and potential users towards bus service quality. The results show
that although both current and potential users place a higher importance
towards the same indicators, they do not share the same pattern of
preferences (values and/or order). In addition, the study found that the
interaction between preferences and satisfaction generated new patterns of
subjective evaluation, and that these patterns vary significantly by user
category.
Journal: Transportation Planning and Technology
Pages: 4-23
Issue: 1
Volume: 36
Year: 2013
Month: 2
X-DOI: 10.1080/03081060.2012.745316
File-URL: http://hdl.handle.net/10.1080/03081060.2012.745316
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Handle: RePEc:taf:transp:v:36:y:2013:i:1:p:4-23
Template-Type: ReDIF-Article 1.0
Author-Name: Andrew Hamilton
Author-X-Name-First: Andrew
Author-X-Name-Last: Hamilton
Author-Name: Ben Waterson
Author-X-Name-First: Ben
Author-X-Name-Last: Waterson
Author-Name: Tom Cherrett
Author-X-Name-First: Tom
Author-X-Name-Last: Cherrett
Author-Name: Andrew Robinson
Author-X-Name-First: Andrew
Author-X-Name-Last: Robinson
Author-Name: Ian Snell
Author-X-Name-First: Ian
Author-X-Name-Last: Snell
Title: The evolution of urban traffic control: changing policy and technology
Abstract:
Abstract The history of urban traffic control (UTC)
throughout the past century has been a continued race to keep pace with
ever more complex policy objectives and consistently increasing vehicle
demand. Many benefits can be observed from an efficient UTC system, such
as reduced congestion, increased economic efficiency and improved road
safety and air quality. There have been significant advances in vehicle
detection and communication technologies which have enabled a series of
step changes in the capabilities of UTC systems, from early (fixed time)
signal plans to modern integrated systems. A variety of UTC systems have
been implemented throughout the world, each with individual strengths and
weaknesses; this paper seeks to compare the leading commercial systems
(and some less well known systems) to highlight the key characteristics
and differences before assessing whether the current UTC systems are
capable of meeting modern transport policy obligations and desires. This
paper then moves on to consider current and future transport policy and
the technological landscape in which UTC will need to operate over the
coming decades, where technological advancements are expected to move UTC
from an era of limited data availability to an era of data abundance.
Journal: Transportation Planning and Technology
Pages: 24-43
Issue: 1
Volume: 36
Year: 2013
Month: 2
X-DOI: 10.1080/03081060.2012.745318
File-URL: http://hdl.handle.net/10.1080/03081060.2012.745318
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Handle: RePEc:taf:transp:v:36:y:2013:i:1:p:24-43
Template-Type: ReDIF-Article 1.0
Author-Name: Valentina Trozzi
Author-X-Name-First: Valentina
Author-X-Name-Last: Trozzi
Author-Name: Ioannis Kaparias
Author-X-Name-First: Ioannis
Author-X-Name-Last: Kaparias
Author-Name: Michael G.H. Bell
Author-X-Name-First: Michael G.H.
Author-X-Name-Last: Bell
Author-Name: Guido Gentile
Author-X-Name-First: Guido
Author-X-Name-Last: Gentile
Title: A dynamic route choice model for public transport networks with boarding queues
Abstract:
Abstract The concepts of optimal strategy and hyperpath
were born within the framework of static frequency-based public transport
assignment, where it is assumed that travel times and frequencies do not
change over time and no overcrowding occurs. However, the formation of
queues at public transport stops can prevent passengers from boarding the
first vehicle approaching and can thus lead to additional delays in their
trip. Assuming that passengers know from previous experience that for
certain stops/lines they will have to wait for the arrival of the 2nd,
3rd, …, k-th vehicle, they may alter their route
choices, thus resulting in a different assignment of flows across the
network. The aim of this paper is to investigate route choice behaviour
changes as a result of the formation and dispersion of queues at stops
within the framework of optimal travel strategies. A new model is
developed, based on modifications of existing algorithms.
Journal: Transportation Planning and Technology
Pages: 44-61
Issue: 1
Volume: 36
Year: 2013
Month: 2
X-DOI: 10.1080/03081060.2012.745720
File-URL: http://hdl.handle.net/10.1080/03081060.2012.745720
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Handle: RePEc:taf:transp:v:36:y:2013:i:1:p:44-61
Template-Type: ReDIF-Article 1.0
Author-Name: Fangce Guo
Author-X-Name-First: Fangce
Author-X-Name-Last: Guo
Author-Name: Rajesh Krishnan
Author-X-Name-First: Rajesh
Author-X-Name-Last: Krishnan
Author-Name: John Polak
Author-X-Name-First: John
Author-X-Name-Last: Polak
Title: A computationally efficient two-stage method for short-term traffic prediction on urban roads
Abstract:
Abstract Short-term traffic prediction plays an important
role in intelligent transport systems. This paper presents a novel
two-stage prediction structure using the technique of Singular Spectrum
Analysis (SSA) as a data smoothing stage to improve the prediction
accuracy. Moreover, a novel prediction method named Grey System Model (GM)
is introduced to reduce the dependency on method training and parameter
optimisation. To demonstrate the effects of these improvements, this paper
compares the prediction accuracies of SSA and non-SSA model structures
using both a GM and a more conventional Seasonal Auto-Regressive
Integrated Moving Average (SARIMA) prediction model. These methods were
calibrated and evaluated using traffic flow data from a corridor in
Central London under both normal and incident traffic conditions. The
prediction accuracy comparisons show that the SSA method as a data
smoothing step before the application of machine learning or statistical
prediction methods can improve the final traffic prediction accuracy. In
addition, the results indicate that the relatively novel GM method
outperforms SARIMA under both normal and incident traffic conditions on
urban roads.
Journal: Transportation Planning and Technology
Pages: 62-75
Issue: 1
Volume: 36
Year: 2013
Month: 2
X-DOI: 10.1080/03081060.2012.745721
File-URL: http://hdl.handle.net/10.1080/03081060.2012.745721
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Handle: RePEc:taf:transp:v:36:y:2013:i:1:p:62-75
Template-Type: ReDIF-Article 1.0
Author-Name: Steve Wright
Author-X-Name-First: Steve
Author-X-Name-Last: Wright
Title: Designing flexible transport services: guidelines for choosing the vehicle type
Abstract:
Abstract This paper offers a new approach to identify
realistic acceptable levels of subsidy for flexible transport services
(FTSs) and then proposes guidance on selection of the most appropriate
vehicle types which should be offered in the design of FTS for different
environments. The guidance is evidence based and has been derived from
detailed analysis of the economic performance of seven FTS pilot
applications plus a further five feasibility studies implemented as part
of the EU FLIPPER (Flexible Transport Services and ICT platform for
Eco-Mobility in urban and rural European areas) project. A major
conclusion from the analysis is that the product of the demand multiplied
by the average trip distance provides a very strong indicator as to the
type of vehicle which should be used. It is hoped this guidance will
provide a valuable aid in designing the most suitable and cost-effective
FTS solutions in both urban and rural environments.
Journal: Transportation Planning and Technology
Pages: 76-92
Issue: 1
Volume: 36
Year: 2013
Month: 2
X-DOI: 10.1080/03081060.2012.745757
File-URL: http://hdl.handle.net/10.1080/03081060.2012.745757
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Handle: RePEc:taf:transp:v:36:y:2013:i:1:p:76-92
Template-Type: ReDIF-Article 1.0
Author-Name: Alan G. Wood
Author-X-Name-First: Alan G.
Author-X-Name-Last: Wood
Author-Name: Linda J. Mountain
Author-X-Name-First: Linda J.
Author-X-Name-Last: Mountain
Author-Name: Richard D. Connors
Author-X-Name-First: Richard D.
Author-X-Name-Last: Connors
Author-Name: Mike J. Maher
Author-X-Name-First: Mike J.
Author-X-Name-Last: Maher
Title: Updating predictive accident models of modern rural single carriageway A-roads
Abstract:
Abstract Reliable predictive accident models (PAMs) are
essential to design and maintain safe road networks, and yet the models
most commonly used in the UK were derived using data collected 20 to 30
years ago. Given that the national personal injury accident total fell by
some 30% in the last 25 years, while road traffic increased by over 60%,
significant errors in scheme appraisal and evaluation based on the models
currently in use seem inevitable. In this paper, the temporal
transferability of PAMs for modern rural single carriageway A-roads is
investigated, and their predictive performance is evaluated against a
recent data set. Despite the age of these models, the PAMs for predicting
the total accidents provide a remarkably good fit to recent data and these
are more accurate than models where accidents are disaggregated by type.
The performance of the models can be improved by calibrating them against
recent data.
Journal: Transportation Planning and Technology
Pages: 93-108
Issue: 1
Volume: 36
Year: 2013
Month: 2
X-DOI: 10.1080/03081060.2012.745760
File-URL: http://hdl.handle.net/10.1080/03081060.2012.745760
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Handle: RePEc:taf:transp:v:36:y:2013:i:1:p:93-108
Template-Type: ReDIF-Article 1.0
Author-Name: Ioannis Tsapakis
Author-X-Name-First: Ioannis
Author-X-Name-Last: Tsapakis
Author-Name: Benjamin G. Heydecker
Author-X-Name-First: Benjamin G.
Author-X-Name-Last: Heydecker
Author-Name: Tao Cheng
Author-X-Name-First: Tao
Author-X-Name-Last: Cheng
Author-Name: Berk Anbaroglu
Author-X-Name-First: Berk
Author-X-Name-Last: Anbaroglu
Title: How tube strikes affect macroscopic and link travel times in London
Abstract:
Abstract The purpose of this study was to investigate the
impact of the five strikes on the London Underground (metro) rail system,
which occurred in 2009 and 2010, on macroscopic and road link travel
times. A consequence of these strikes was an increase in road traffic
flows above usual levels. This provides an opportunity to observe the
operation of the road network under unusually high flows. The first
objective involves the examination of strike effects on inbound (IT) and
outbound traffic (OT) within central, inner and outer London. Travel time
data obtained from automatic number plate recognition cameras are used
within the first part of the analysis. The second more detailed objective
was to investigate in spatio-temporal effects on travel times on five road
links. Correlation analyses and general linear models are developed using
both traffic flow and travel time data. According to the results of the
study, the morning IT had approximately twice as much delay as the OT.
Central London experienced the highest delays, followed by inner and outer
London. As would be expected, the unique full-day strike in 2009 yielded
the worst impact on the network with the highest percentage increase in
total travel time (60%) occurring during the morning peak in the IT in
inner London. The results from the link-level analysis showed statistical
significance amongst the examined links indicating heterogeneous effects
from one link to another. It was also found that travel time changes may
be more effectively captured through time-of-day terms compared to hourly
traffic flows.
Journal: Transportation Planning and Technology
Pages: 109-129
Issue: 1
Volume: 36
Year: 2013
Month: 2
X-DOI: 10.1080/03081060.2012.745766
File-URL: http://hdl.handle.net/10.1080/03081060.2012.745766
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Handle: RePEc:taf:transp:v:36:y:2013:i:1:p:109-129
Template-Type: ReDIF-Article 1.0
Author-Name: R.E. Wilson
Author-X-Name-First: R.E.
Author-X-Name-Last: Wilson
Author-Name: S. Cairns
Author-X-Name-First: S.
Author-X-Name-Last: Cairns
Author-Name: S. Notley
Author-X-Name-First: S.
Author-X-Name-Last: Notley
Author-Name: J. Anable
Author-X-Name-First: J.
Author-X-Name-Last: Anable
Author-Name: T. Chatterton
Author-X-Name-First: T.
Author-X-Name-Last: Chatterton
Author-Name: F. McLeod
Author-X-Name-First: F.
Author-X-Name-Last: McLeod
Title: Techniques for the inference of mileage rates from MOT data
Abstract:
Abstract Mathematical and computational techniques are
developed for the processing and analysis of annual Ministry of Transport
roadworthiness (MOT) test data that the UK Department for Transport has
placed in the public domain. First, techniques are given that clean
erroneous records and a linking procedure is provided that permits the
inference of an individual vehicle's mileage between consecutive tests.
Methods are then developed that analyse aggregate mileage totals, as a
function of vehicle age, class and geography. The inference of aggregate
mileage rates as a function of time is then considered.
Journal: Transportation Planning and Technology
Pages: 130-143
Issue: 1
Volume: 36
Year: 2013
Month: 2
X-DOI: 10.1080/03081060.2012.745768
File-URL: http://hdl.handle.net/10.1080/03081060.2012.745768
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Handle: RePEc:taf:transp:v:36:y:2013:i:1:p:130-143
Template-Type: ReDIF-Article 1.0
Author-Name: Qisheng Pan
Author-X-Name-First: Qisheng
Author-X-Name-Last: Pan
Title: The impacts of an urban light rail system on residential property values: a case study of the Houston METRORail transit line
Abstract:
Though the impact of rail transit service
on property values has been investigated for transit rail lines in a
number of cities, the effects of the Houston light rail transit (LRT) line
have not been examined since it began service. This study utilizes the
2007 InfoUSA household data-sets to analyze the impacts of the Houston's
LRT line on residential property values. In addition to the traditional
ordinary linear regression models that have been widely used in transit
impact studies, a multi-level regression model is adopted in this study to
identify the effects of the METRORail on the Main Street Corridor. The
results from both models suggest that the opening of the light rail has
had significant net positive effects on some residential property values.
However, immediate proximity to light rail stations and bus stops has
significant negative impacts on properties located within a quarter mile
of rail stops.
Journal: Transportation Planning and Technology
Pages: 145-169
Issue: 2
Volume: 36
Year: 2013
Month: 4
X-DOI: 10.1080/03081060.2012.739311
File-URL: http://hdl.handle.net/10.1080/03081060.2012.739311
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Handle: RePEc:taf:transp:v:36:y:2013:i:2:p:145-169
Template-Type: ReDIF-Article 1.0
Author-Name: Mert Kompil
Author-X-Name-First: Mert
Author-X-Name-Last: Kompil
Author-Name: H. Murat Celik
Author-X-Name-First: H. Murat
Author-X-Name-Last: Celik
Title: Modelling trip distribution with fuzzy and genetic fuzzy systems
Abstract:
This paper explores the potential
capabilities of fuzzy and genetic fuzzy system approaches in urban trip
distribution modelling with some new features. First, a simple fuzzy
rule-based system (FRBS) and a novel genetic fuzzy rule-based system
[GFRBS: a fuzzy system improved by a knowledge base learning process with
genetic algorithms (GAs)] are designed to model intra-city passenger flows
for Istanbul. Subsequently, their accuracy, applicability and
generalizability characteristics are evaluated against the well-known
gravity- and neural network (NN)-based trip distribution models. The
overall results show that: traditional doubly constrained gravity models
are still simple and efficient; NNs may not show expected performance when
they are forced to satisfy trip constraints; simply-designed FRBSs,
learning from observations and expertise, are both efficient and
interpretable even if the data are large and noisy; and use of GAs in
fuzzy rule-based learning considerably increases modelling performance,
although it brings additional computation cost.
Journal: Transportation Planning and Technology
Pages: 170-200
Issue: 2
Volume: 36
Year: 2013
Month: 4
X-DOI: 10.1080/03081060.2013.770946
File-URL: http://hdl.handle.net/10.1080/03081060.2013.770946
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Handle: RePEc:taf:transp:v:36:y:2013:i:2:p:170-200
Template-Type: ReDIF-Article 1.0
Author-Name: Ioannis Tsapakis
Author-X-Name-First: Ioannis
Author-X-Name-Last: Tsapakis
Author-Name: WilliamH. Schneider
Author-X-Name-First: WilliamH.
Author-X-Name-Last: Schneider
Author-Name: AndrewP. Nichols
Author-X-Name-First: AndrewP.
Author-X-Name-Last: Nichols
Title: A Bayesian analysis of the effect of estimating annual average daily traffic for heavy-duty trucks using training and validation data-sets
Abstract:
The precise estimation of annual average
daily traffic (AADT) is of significant importance worldwide for
transportation agencies. This paper uses three modeling frameworks to
predict the AADT for heavy-duty trucks. In total, 12 models are developed
based on regression and Bayesian analysis using a training data-set. A
separate validation data-set is used to compare the results from the 12
models, spanning the years 2005 through 2007 and taken from 67 continuous
data recorders. Parameters of significance include roadway functional
class, population density, and spatial location; five regional areas -
northeast, northwest, central, southeast, and southwest - of the state of
Ohio in the USA; and average daily truck traffic. The results show that a
full Bayesian negative binomial model with a coefficient offset is the
most efficient model framework for all four seasons of the year. This
model is able to account for between 87% and 92% of the variability within
the data-set.
Journal: Transportation Planning and Technology
Pages: 201-217
Issue: 2
Volume: 36
Year: 2013
Month: 4
X-DOI: 10.1080/03081060.2013.770944
File-URL: http://hdl.handle.net/10.1080/03081060.2013.770944
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Handle: RePEc:taf:transp:v:36:y:2013:i:2:p:201-217
Template-Type: ReDIF-Article 1.0
Author-Name: Milosav Georgijevic
Author-X-Name-First: Milosav
Author-X-Name-Last: Georgijevic
Author-Name: Sanja Bojic
Author-X-Name-First: Sanja
Author-X-Name-Last: Bojic
Author-Name: Dejan Brcanov
Author-X-Name-First: Dejan
Author-X-Name-Last: Brcanov
Title: The location of public logistic centers: an expanded capacity-limited fixed cost location-allocation modeling approach
Abstract:
The location problem considered in this
paper concerns the optimal number, size, and location of public logistic
centers. To solve this problem, a mathematical model is developed based on
an expanded capacity-limited fixed cost location-allocation model of a
network incorporating handling costs and the costs of the temporary
storage of cargo in the logistic center. The effectiveness of the proposed
approach is evaluated with a numerical example of locating public logistic
centers of international importance in the Republic of Serbia, based on
two scenarios regarding the future development of import cargo flows into
the Republic to the year 2020.
Journal: Transportation Planning and Technology
Pages: 218-229
Issue: 2
Volume: 36
Year: 2013
Month: 4
X-DOI: 10.1080/03081060.2013.770945
File-URL: http://hdl.handle.net/10.1080/03081060.2013.770945
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Handle: RePEc:taf:transp:v:36:y:2013:i:2:p:218-229
Template-Type: ReDIF-Article 1.0
Author-Name: Cesar Queiroz
Author-X-Name-First: Cesar
Author-X-Name-Last: Queiroz
Author-Name: Nevena Vajdic
Author-X-Name-First: Nevena
Author-X-Name-Last: Vajdic
Author-Name: Goran Mladenovic
Author-X-Name-First: Goran
Author-X-Name-Last: Mladenovic
Title: Public--private partnerships in roads and government support: trends in transition and developing economies
Abstract:
Private participation in roads revived strongly in transition and
developing countries between 2005 and 2008, growing during the period from
US$6.2 billion to US$16.4 billion a year, a new historic peak. However, in
view of the recent global financial crisis, there has been some retraction
of private financing resulting in an investment of US$15.8 billion in
2009. Driving policy-makers' renewed interest in attracting private
financing for roads is the need for greater investments to keep road
networks in an acceptable condition and carry out social and economic
expansion plans in a context of public budget constraints. An analysis is
presented of recent trends in road projects with private participation in
developing and transition economies, in view of the policies and models
adopted by these countries. A procedure for estimating the minimum toll
rates required to attract private investors is also presented.
Journal: Transportation Planning and Technology
Pages: 231-243
Issue: 3
Volume: 36
Year: 2013
Month: 4
X-DOI: 10.1080/03081060.2013.779472
File-URL: http://hdl.handle.net/10.1080/03081060.2013.779472
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Handle: RePEc:taf:transp:v:36:y:2013:i:3:p:231-243
Template-Type: ReDIF-Article 1.0
Author-Name: Chenfeng Xiong
Author-X-Name-First: Chenfeng
Author-X-Name-Last: Xiong
Author-Name: Lei Zhang
Author-X-Name-First: Lei
Author-X-Name-Last: Zhang
Title: Deciding whether and how to improve statewide travel demand models based on transportation planning application needs
Abstract:
Many states in the USA have developed statewide travel demand models for
transportation planning at the state level and along intercity corridors.
Travel demand models at mega-region and provincial levels are also widely
used in Europe and Asia. With modern transportation planning applications
requiring enhanced model capabilities, many states are considering
improving their four-step statewide demand models. This paper synthesizes
representative statewide models developed with traditional four-step,
advanced four-step, and integrated micro-simulation methods. The focus of
this synthesis study is as much on model applications and data
requirements as on modeling methods. An incremental model improvement
approach toward advanced statewide models is recommended. Review findings
also suggest model improvement activities should be justified by planning
application needs. For statewide model improvement plans to be successful
and financially sustainable, the return on model improvement investment
needs to be demonstrated by timely applications that rely on improved
model capabilities.
Journal: Transportation Planning and Technology
Pages: 244-266
Issue: 3
Volume: 36
Year: 2013
Month: 4
X-DOI: 10.1080/03081060.2013.779473
File-URL: http://hdl.handle.net/10.1080/03081060.2013.779473
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Handle: RePEc:taf:transp:v:36:y:2013:i:3:p:244-266
Template-Type: ReDIF-Article 1.0
Author-Name: Xiaoning Zhang
Author-X-Name-First: Xiaoning
Author-X-Name-Last: Zhang
Title: Effects of queue spillover in networks considering simultaneous departure time and route choices
Abstract:
This paper explores the effects of queue spillover in transportation
networks, in the context of dynamic traffic assignment. A model of spatial
queue is defined to characterize dynamic traffic flow and queuing
formation in network links. Network users simultaneously choose departure
time and travel route to minimize the travel cost including journey time
and unpunctuality penalty. Using some necessary conditions of the dynamic
user equilibrium, dynamic network flows are obtained exactly on some
networks with typical structure. Various effects of queue spillover are
discussed based on the results of these networks, and some new paradoxes
of link capacity expansion have been found as a result of such effects.
Analytical and exact results in these typical networks show that ignoring
queuing length may generate biased solutions, and the link storage
capacity is a very important factor concerning the performance of
networks.
Journal: Transportation Planning and Technology
Pages: 267-286
Issue: 3
Volume: 36
Year: 2013
Month: 4
X-DOI: 10.1080/03081060.2013.779474
File-URL: http://hdl.handle.net/10.1080/03081060.2013.779474
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Handle: RePEc:taf:transp:v:36:y:2013:i:3:p:267-286
Template-Type: ReDIF-Article 1.0
Author-Name: Cumhur Erdem
Author-X-Name-First: Cumhur
Author-X-Name-Last: Erdem
Author-Name: Saban Nazlioglu
Author-X-Name-First: Saban
Author-X-Name-Last: Nazlioglu
Title: Determinants of new vehicle registrations in EU countries: a panel cointegration analysis
Abstract:
This paper investigates the determinants of new vehicle registrations in
European Union (EU) countries by focusing on four particular segments --
passenger cars, light commercial vehicles, commercial vehicles, and heavy
commercial vehicles. A panel cointegration analysis for a panel of 13 EU
countries during the period from January 1999 to August 2010 shows that
new vehicle sales have long-run cointegration relations with vehicle
prices, consumer confidence, income, interest rates, fuel prices,
industrial production, and trade. More effective factors in determining
new vehicle sales appear to be trade, interest rates, and industrial
production.
Journal: Transportation Planning and Technology
Pages: 287-298
Issue: 3
Volume: 36
Year: 2013
Month: 4
X-DOI: 10.1080/03081060.2013.779475
File-URL: http://hdl.handle.net/10.1080/03081060.2013.779475
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Handle: RePEc:taf:transp:v:36:y:2013:i:3:p:287-298
Template-Type: ReDIF-Article 1.0
Author-Name: Rubén Sainz
Author-X-Name-First: Rubén
Author-X-Name-Last: Sainz
Author-Name: Jose Baños
Author-X-Name-First: Jose
Author-X-Name-Last: Baños
Author-Name: Susana Val
Author-X-Name-First: Susana
Author-X-Name-Last: Val
Author-Name: Samir Jose Kattour
Author-X-Name-First: Samir Jose
Author-X-Name-Last: Kattour
Title: The economic impact of logistics infrastructure: the case of PLAZA -- the Zaragoza Logistics Platform
Abstract:
AbstractThe economics literature
offers many examples of studies of the economic impact of transportation
infrastructure such as highways, ports, and airports; however, little
attention has been paid to other types of infrastructure such as logistics
platforms. This article is a first assessment of the economic effects of
the largest logistics platform in Europe -- PLAZA, the Zaragoza Logistics
Platform -- located in Spain. More precisely, this paper analyzes the
economic significance of PLAZA on the economy of the Aragon region where
it is located. The methodology is based on the application of
input--output analysis to the final demand of logistics platform-based
companies in a manner that is similar to well-established studies of the
economic impacts of tourism on tourist expenditure. This makes it possible
to quantify the various levels of economic effects (direct, indirect, and
induced) in terms of jobs, salaries, and wages, turnover, gross operating
surplus (GOS), and gross value added (GVA). The conclusions reveal the
economic importance PLAZA has for the regional economy of Aragon,
representing just over 2% of total GVA and 3% of turnover.
Journal: Transportation Planning and Technology
Pages: 299-318
Issue: 4
Volume: 36
Year: 2013
Month: 6
X-DOI: 10.1080/03081060.2013.798480
File-URL: http://hdl.handle.net/10.1080/03081060.2013.798480
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Handle: RePEc:taf:transp:v:36:y:2013:i:4:p:299-318
Template-Type: ReDIF-Article 1.0
Author-Name: André Dulce Gonçalves Maia
Author-X-Name-First: André Dulce Gonçalves
Author-X-Name-Last: Maia
Author-Name: Márcio Almeida D'Agosto
Author-X-Name-First: Márcio Almeida
Author-X-Name-Last: D'Agosto
Title: The future of trucking technology in Brazil: results of a technology forecasting model
Abstract:
AbstractThe aim of this article
is to identify a set of technological events related to the Brazilian
truck fleet that are well placed hierarchically regarding their
possibility of occurrence and pertinence for the horizon year of 2021. For
this we propose and apply a Technology Forecasting Model for trucks
(called TFM/Trucks) based on the Delphi technique, considering 28
technological events associated with six internal forecasting dimensions:
safety, efficient use of energy and alternative fuels, materials
technology, operational schemes, comfort and environment. The ranking of
the technological events, considering hypothetical situations for
analysis, indicate significant concern over the safety dimension, with
four of the five events (passive safety and active safety) classified
among the 10 events with the greatest chance of occurring and pertinence,
irrespective of the panelists' degree of specialization. The environmental
dimension, with respect to the predominance of electric powered trucks
with lower level of atmospheric pollutants, was always in one of the first
two positions, regardless of the situation studied. In the final ranking,
the five best-classified events represented the dimensions of safety,
environment, materials technology and comfort, with environment and
passive safety predominating.
Journal: Transportation Planning and Technology
Pages: 319-334
Issue: 4
Volume: 36
Year: 2013
Month: 6
X-DOI: 10.1080/03081060.2013.798482
File-URL: http://hdl.handle.net/10.1080/03081060.2013.798482
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Handle: RePEc:taf:transp:v:36:y:2013:i:4:p:319-334
Template-Type: ReDIF-Article 1.0
Author-Name: Sangho Choo
Author-X-Name-First: Sangho
Author-X-Name-Last: Choo
Author-Name: Soyoung (Iris) You
Author-X-Name-First: Soyoung (Iris)
Author-X-Name-Last: You
Author-Name: Hyangsook Lee
Author-X-Name-First: Hyangsook
Author-X-Name-Last: Lee
Title: Exploring characteristics of airport access mode choice: a case study of Korea
Abstract:
AbstractThis paper explores air
passengers' behavior of airport access mode choice and develops airport
access mode choice models for two major domestic airports in Korea, Gimpo
Airport and Daegu Airport. First, descriptive analyses are conducted to
identify whether the key explanatory variables such as trip purpose,
travel time, and travel cost are statistically different among airport
access modes. Second, logistic regression models are proposed for three
types of airport access mode choices: auto and public transit, auto and
bus, and auto and subway. The model results indicate that the choice of
airport access mode is significantly affected by travel characteristics
and sociodemographic variables. This study also estimates access mode
choice models for business and nonbusiness travel, indicating that access
mode choice is significantly more affected by demographic characteristics
of nonbusiness travel air passengers than those for business travel
passengers.
Journal: Transportation Planning and Technology
Pages: 335-351
Issue: 4
Volume: 36
Year: 2013
Month: 6
X-DOI: 10.1080/03081060.2013.798484
File-URL: http://hdl.handle.net/10.1080/03081060.2013.798484
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Handle: RePEc:taf:transp:v:36:y:2013:i:4:p:335-351
Template-Type: ReDIF-Article 1.0
Author-Name: Jiuping Xu
Author-X-Name-First: Jiuping
Author-X-Name-Last: Xu
Author-Name: Jun Gang
Author-X-Name-First: Jun
Author-X-Name-Last: Gang
Title: Multi-objective bilevel construction material transportation scheduling in large-scale construction projects under a fuzzy random environment
Abstract:
AbstractThis paper investigates a
transportation scheduling problem in large-scale construction projects
under a fuzzy random environment. The problem is formulated as a fuzzy,
random multi-objective bilevel optimization model where the construction
company decides the transportation quantities from every source to every
destination according to the criterion of minimizing total transportation
cost and transportation time on the upper level, while the transportation
agencies choose their transportation routes such that the total travel
cost is minimized on the lower level. Specifically, we model both travel
time and travel cost as triangular fuzzy random variables. Then the
multi-objective bilevel adaptive particle swarm optimization algorithm is
proposed to solve the model. Finally, a case study of transportation
scheduling for the Shuibuya Hydropower Project in China is used as a real
world example to demonstrate the practicality and efficiency of the
optimization model and algorithm.
Journal: Transportation Planning and Technology
Pages: 352-376
Issue: 4
Volume: 36
Year: 2013
Month: 6
X-DOI: 10.1080/03081060.2013.798486
File-URL: http://hdl.handle.net/10.1080/03081060.2013.798486
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Handle: RePEc:taf:transp:v:36:y:2013:i:4:p:352-376
Template-Type: ReDIF-Article 1.0
Author-Name: Carl H. Häll
Author-X-Name-First: Carl H.
Author-X-Name-Last: Häll
Author-Name: Anders Peterson
Author-X-Name-First: Anders
Author-X-Name-Last: Peterson
Title: Improving paratransit scheduling using ruin and recreate methods
Abstract:
AbstractIn this paper we study
the effects of using ruin and recreate methods in a replanning phase of a
dynamic dial-a-ride problem. Several such methods are proposed, and a
modeling system is used to evaluate how they improve the quality of the
solutions. We show that simple changes to existing planning methods can
increase the efficiency of the service. Two cases, with different forms of
costs inflicted on the vehicles, are evaluated and significant
improvements are found in both cases. The best results of our study are
found with ruin methods based on removal of sequences of requests.
Journal: Transportation Planning and Technology
Pages: 377-393
Issue: 4
Volume: 36
Year: 2013
Month: 6
X-DOI: 10.1080/03081060.2013.798488
File-URL: http://hdl.handle.net/10.1080/03081060.2013.798488
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Handle: RePEc:taf:transp:v:36:y:2013:i:4:p:377-393
Template-Type: ReDIF-Article 1.0
Author-Name: Simon Robertson
Author-X-Name-First: Simon
Author-X-Name-Last: Robertson
Title: High-speed rail's potential for the reduction of carbon dioxide emissions from short haul aviation: a longitudinal study of modal substitution from an energy generation and renewable energy perspective
Abstract:
Abstract This paper quantifies and
evaluates, utilising a 'bottom-up' approach, the effect on CO2
emissions of a modal shift from short-haul air travel to high-speed rail
(HSR), based on projected passenger movements, between Sydney and
Melbourne, Australia during the period 2010--2030. To date, peer-reviewed
studies assessing the CO2 emissions from these competing modes
of high-speed transportation have been restricted principally to a
cross-sectional assessment, with a Eurocentric bias. This present
comparative study seeks to address a gap in the literature by assessing,
longitudinally, the CO2 emissions associated with the proposed
operation of HSR against the 'business-as-usual' air scenario between
Sydney and Melbourne. Under the assumed 50/50 modal shift, and the
Australian government's current renewable electricity target, an annual
reduction in CO2 emissions of approximately 14% could be
achieved when compared with a 'business-as-usual' air scenario. This
percentage reduction represents a 62 kt reduction in base year, 2010, and
a 114 kt reduction in the final year, 2030. In total, the overall
reduction achieved by such a modal shift, under the assumed conditions,
during the period 2010--2030, equates to approximately 1.87 Mt of
CO2. Importantly, if the electrical energy supply for HSR
operations was further 'decarbonised', then it follows that a greater
emission reduction would be achieved.
Journal: Transportation Planning and Technology
Pages: 395-412
Issue: 5
Volume: 36
Year: 2013
Month: 7
X-DOI: 10.1080/03081060.2013.818271
File-URL: http://hdl.handle.net/10.1080/03081060.2013.818271
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Handle: RePEc:taf:transp:v:36:y:2013:i:5:p:395-412
Template-Type: ReDIF-Article 1.0
Author-Name: Tae-Hyoung Tommy Gim
Author-X-Name-First: Tae-Hyoung Tommy
Author-X-Name-Last: Gim
Title: The relationships between land use measures and travel behavior: a meta-analytic approach
Abstract:
Abstract From a review of the
literature on residential self-selection and spatial multicollinearity,
this paper identifies the relationships that travel behavior has with
three factors: land use, sociodemographics, and attitudes. It then
analyzes the magnitude of the land use--travel behavior relationship by
testing two meta-regression models. Each model specifies: (1) residential
self-selection as a sociodemographic or attitudinal confounding factor in
the land use--travel behavior relationship; and (2) spatial
multicollinearity as a land use confounding variable. The first model
shows that the land use factor is related to travel behavior more strongly
than is residential self-selection. The second model finds that, among
land use variables, accessibility to regional centers is most strongly
related to travel behavior. Depending on the accessibility--travel
behavior relationship, other land use variables are conditionally related
to travel behavior. This finding implies that accessibility represents the
overall effect of land use on travel behavior.
Journal: Transportation Planning and Technology
Pages: 413-434
Issue: 5
Volume: 36
Year: 2013
Month: 7
X-DOI: 10.1080/03081060.2013.818272
File-URL: http://hdl.handle.net/10.1080/03081060.2013.818272
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Handle: RePEc:taf:transp:v:36:y:2013:i:5:p:413-434
Template-Type: ReDIF-Article 1.0
Author-Name: Floriano Carlos Martins Pires
Author-X-Name-First: Floriano Carlos Martins
Author-X-Name-Last: Pires
Author-Name: Fabio Sciberras de Carvalho
Author-X-Name-First: Fabio Sciberras
Author-X-Name-Last: de Carvalho
Title: Multicriteria analysis of inland waterway transport projects: the case of the Marajó Island waterway project in Brazil
Abstract:
Abstract This paper proposes a
multicriteria methodology for the analysis of investment in inland
waterway infrastructure projects, taking into consideration allocative
efficiency, the effect on regional development and environmental impact.
The methodology is based on an analytic hierarchy process approach. As an
example, the case of an important Brazilian Amazonian project is analysed.
The Marajó Island waterway project has been under discussion for a long
time in Brazil, as it is located in an environmentally sensitive area, but
at the same time it is considered to have a critical impact on regional
economic development. A Monte Carlo simulation is performed to take into
account uncertainties related to knowledge failure on project impact or on
the conditions that determine the relative importance of the decision
criteria.
Journal: Transportation Planning and Technology
Pages: 435-449
Issue: 5
Volume: 36
Year: 2013
Month: 7
X-DOI: 10.1080/03081060.2013.818273
File-URL: http://hdl.handle.net/10.1080/03081060.2013.818273
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Handle: RePEc:taf:transp:v:36:y:2013:i:5:p:435-449
Template-Type: ReDIF-Article 1.0
Author-Name: G. Yannis
Author-X-Name-First: G.
Author-X-Name-Last: Yannis
Author-Name: E. Papadimitriou
Author-X-Name-First: E.
Author-X-Name-Last: Papadimitriou
Author-Name: A. Theofilatos
Author-X-Name-First: A.
Author-X-Name-Last: Theofilatos
Title: Pedestrian gap acceptance for mid-block street crossing
Abstract:
Abstract This paper investigates
pedestrians' traffic gap acceptance for mid-block street crossing in urban
areas. A field survey was carried out at an uncontrolled mid-block
location in Athens, Greece. Pedestrians' decisions and traffic conditions
were videotaped in terms of the size of traffic gaps rejected or accepted,
waiting times and crossing attempts and vehicle speeds. A lognormal
regression model was developed to examine pedestrian gap acceptance. It
was found that gap acceptance was better explained by the distance from
the incoming vehicle, rather than its speed. Other significant effects
included illegal parking, presence of other pedestrians and incoming
vehicles' size. A binary logistic regression model was developed to
examine the effect of traffic gaps and other parameters on pedestrians'
decisions to cross the street or not. The results reveal that this
decision is affected by the distance from the incoming vehicles and the
waiting times of pedestrians.
Journal: Transportation Planning and Technology
Pages: 450-462
Issue: 5
Volume: 36
Year: 2013
Month: 7
X-DOI: 10.1080/03081060.2013.818274
File-URL: http://hdl.handle.net/10.1080/03081060.2013.818274
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Handle: RePEc:taf:transp:v:36:y:2013:i:5:p:450-462
Template-Type: ReDIF-Article 1.0
Author-Name: Xiangdong Xu
Author-X-Name-First: Xiangdong
Author-X-Name-Last: Xu
Author-Name: Anthony Chen
Author-X-Name-First: Anthony
Author-X-Name-Last: Chen
Title: C-logit stochastic user equilibrium model with elastic demand
Abstract:
Abstract Modeling the elasticity
of travel demand in network equilibrium analysis has several important
transportation applications. In this paper, we provide a mathematical
programming formulation for the C-logit stochastic user equilibrium
problem with elastic demand (CL-SUE-ED) in the route domain. The proposed
model is capable of explicitly modeling the elasticity of travel demand
and the effect of route overlapping on travel choice and route choice
simultaneously. Some qualitative properties of the model, including the
equivalency and uniqueness of the solution, are also rigorously proved. To
solve the CL-SUE-ED model, a partial linearization method is developed to
handle the elastic demand and route overlapping considerations. In
addition, a self-regulated averaging stepsize scheme is adopted to smartly
determine the stepsize while avoiding evaluating the complex objective
function. Numerical examples are also provided to demonstrate the features
of the proposed model and solution algorithm.
Journal: Transportation Planning and Technology
Pages: 463-478
Issue: 5
Volume: 36
Year: 2013
Month: 7
X-DOI: 10.1080/03081060.2013.818275
File-URL: http://hdl.handle.net/10.1080/03081060.2013.818275
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Handle: RePEc:taf:transp:v:36:y:2013:i:5:p:463-478
Template-Type: ReDIF-Article 1.0
Author-Name: Zarar Siddiqi
Author-X-Name-First: Zarar
Author-X-Name-Last: Siddiqi
Author-Name: Ron Buliung
Author-X-Name-First: Ron
Author-X-Name-Last: Buliung
Title: Dynamic ridesharing and information and communications technology: past, present and future prospects
Abstract:
Abstract Using a case study
approach situated historically, this paper examines how dynamic
ridesharing (DRS) has evolved through time in tandem with changes in
information and communication technologies (ICTs). Informed speculation is
then offered on the future of DRS. A chronological review of a sample of
DRS systems reveals the strengths and weaknesses of various technologies.
Recent shifts in the software development industry's business and
technical models have changed the type of applications being created,
development processes and uses. The prospects of these changes on DRS are
discussed, focusing on the issues of security/privacy and adoption. The
roles of old and new stakeholders, such as automobile manufacturers,
software developers and end users are also discussed. The increasing
technical confidence and competence of the end user is identified as
essential to the success of any contemporary DRS application.
Journal: Transportation Planning and Technology
Pages: 479-498
Issue: 6
Volume: 36
Year: 2013
Month: 8
X-DOI: 10.1080/03081060.2013.830895
File-URL: http://hdl.handle.net/10.1080/03081060.2013.830895
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Handle: RePEc:taf:transp:v:36:y:2013:i:6:p:479-498
Template-Type: ReDIF-Article 1.0
Author-Name: Gonçalo Homem de Almeida Correia
Author-X-Name-First: Gonçalo Homem
Author-X-Name-Last: de Almeida Correia
Author-Name: João de Abreu e Silva
Author-X-Name-First: João
Author-X-Name-Last: de Abreu e Silva
Author-Name: José Manuel Viegas
Author-X-Name-First: José Manuel
Author-X-Name-Last: Viegas
Title: Using latent attitudinal variables estimated through a structural equations model for understanding carpooling propensity
Abstract:
Abstract Carpooling systems have
never been able to achieve significant reductions in the use of private
vehicles. The psychological barriers associated with riding with
nonacquaintances and losing the flexibility of using one's private vehicle
as a single occupant are often referred to. However, the effect of these
issues is hard to determine as they reveal subjective attitudes not easy
to quantify. In order to measure these attitudes a survey was conducted in
Lisbon (Portugal). In this survey, we collected data for several
attitudinal variables and conducted a stated preference experiment
comparing driving alone/with family with external carpooling. A
simultaneous estimation of the latent attitudinal factors and the
probabilities of choice were conducted through a structural equations
model. The model results show that attitudes play an important role in the
decision to carpool, and they also act as mediators from socio-demographic
characteristics. The negative aspects of carpooling may be overcome by the
positive aspects; however, our results also stress the difficulties
associated with changing from an acquaintance-based carpool to a broader
system which may hinder the possibility of expanding the number of
carpoolers in big cities.
Journal: Transportation Planning and Technology
Pages: 499-519
Issue: 6
Volume: 36
Year: 2013
Month: 8
X-DOI: 10.1080/03081060.2013.830894
File-URL: http://hdl.handle.net/10.1080/03081060.2013.830894
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Handle: RePEc:taf:transp:v:36:y:2013:i:6:p:499-519
Template-Type: ReDIF-Article 1.0
Author-Name: Borja Alonso
Author-X-Name-First: Borja
Author-X-Name-Last: Alonso
Author-Name: José Luis Moura
Author-X-Name-First: José Luis
Author-X-Name-Last: Moura
Author-Name: Angel Ibeas
Author-X-Name-First: Angel
Author-X-Name-Last: Ibeas
Author-Name: Luigi dell'Olio
Author-X-Name-First: Luigi
Author-X-Name-Last: dell'Olio
Title: Analytical model for calibrating delay at congested bus stops
Abstract:
Abstract A model is proposed to
calculate the overall operating and delay times spent at bus stops due to
passenger boarding and alighting and the time lost to queuing caused by
bus stop saturation. A formula for line demand at each stop and the
interaction between the buses themselves is proposed and applied to
different bus stops depending on the number of available berths. The
application of this model has quantified significant operational delays
suffered by users and operator due to consecutive bus arrival at stops,
even with flows below bus stop capacity.
Journal: Transportation Planning and Technology
Pages: 520-528
Issue: 6
Volume: 36
Year: 2013
Month: 8
X-DOI: 10.1080/03081060.2013.830893
File-URL: http://hdl.handle.net/10.1080/03081060.2013.830893
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Handle: RePEc:taf:transp:v:36:y:2013:i:6:p:520-528
Template-Type: ReDIF-Article 1.0
Author-Name: Luis Márquez
Author-X-Name-First: Luis
Author-X-Name-Last: Márquez
Author-Name: Víctor Cantillo
Author-X-Name-First: Víctor
Author-X-Name-Last: Cantillo
Title: Evaluating strategic freight transport corridors including external costs
Abstract:
Abstract A relevant issue for the
strategic modeling of interregional freight transport networks is to
include external costs as part of a policy that supports the mechanisms
for managing and pricing to achieve the social optimum. In this paper, a
freight transport model, including external cost, is developed and applied
to the Colombian intercity intermodal strategic network involving
equilibrium between the phases of distribution and traffic assignment.
Each link on the network includes internal costs: time and operation, and
external costs: congestion, accidents, air pollution and CO2
emissions. Marginal costs on the freight transport network are calculated
using two approaches. First, it is assumed that an additional unit of
demand does not affect the equilibrium of the transport network, and then
the marginal cost is estimated as the sum of marginal costs on the
shortest path links. The second approach assumes that an additional unit
of demand changes the network equilibrium and, consequently, the marginal
costs are estimated by calculating the difference between the two
equilibrium scenarios. Both approaches are applied to seven selected route
corridors covering the most important national freight transport
corridors. It was found that both methods produce similar results. Average
external costs were rated equal to 0.014 US$/ton-km for highways, 0.000105
US$/ton-km for inland waterway transport and 0.0016 US$/ton-km for rail.
In highways, external costs are equivalent to 37% of internal costs, in
railways 12%, and in inland waterways they represent only 1%.
Journal: Transportation Planning and Technology
Pages: 529-546
Issue: 6
Volume: 36
Year: 2013
Month: 8
X-DOI: 10.1080/03081060.2013.830892
File-URL: http://hdl.handle.net/10.1080/03081060.2013.830892
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Handle: RePEc:taf:transp:v:36:y:2013:i:6:p:529-546
Template-Type: ReDIF-Article 1.0
Author-Name: Jin-Hee Kim
Author-X-Name-First: Jin-Hee
Author-X-Name-Last: Kim
Author-Name: Jin-Hyuk Chung
Author-X-Name-First: Jin-Hyuk
Author-X-Name-Last: Chung
Author-Name: Taewan Kim
Author-X-Name-First: Taewan
Author-X-Name-Last: Kim
Title: The effect of psychological traits on mode choice behaviour: an application to a new water transit system in Seoul, Korea
Abstract:
Abstract In this paper, we use
revealed preference (RP), stated preference (SP) and attitudinal survey
data to analyse the behaviour changes caused by a new water transit system
on the Han River in Seoul, Korea and to identify the effects of
psychological traits on mode choice behaviour. The results confirm that
conventional variables, such as individual, household and mode attributes,
are significant for mode choice, and that the latent variables, including
water transit preference, environmental preferences, comfort and attitudes
towards driving and haste, are also very important. In addition, by
comparing the estimated scale parameters among a number of scenarios, we
also observed the additional impacts of these effects. The latent traits
had a more substantial impact on actual mode choice behaviour than on
hypothetical behaviour. We systematically captured the taste variation
with respect to travellers' latent traits, finding that these
significantly reduce or increase the disutility produced by a travel time
or cost increase. This heterogeneity was also confirmed in the different
willingness-to-pay (WTP) measures at different levels of each latent
trait.
Journal: Transportation Planning and Technology
Pages: 547-566
Issue: 6
Volume: 36
Year: 2013
Month: 8
X-DOI: 10.1080/03081060.2013.830891
File-URL: http://hdl.handle.net/10.1080/03081060.2013.830891
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Handle: RePEc:taf:transp:v:36:y:2013:i:6:p:547-566
Template-Type: ReDIF-Article 1.0
Author-Name: Chien-Wen Shen
Author-X-Name-First: Chien-Wen
Author-X-Name-Last: Shen
Author-Name: Ching-Chih Chou
Author-X-Name-First: Ching-Chih
Author-X-Name-Last: Chou
Title: A time series analysis of the dynamic competition between major cargo airports
Abstract:
This paper models the dynamic competition
between major cargo airports from the time series perspectives of
long-term equilibriums and short-run dynamics. We first apply a unit root
test to examine the stationarity of cargo throughput data. Airports are
then analysed pairwise by region to test their equilibrium relationships
through cointegration analysis. Meanwhile, we also utilise the error
correction model to investigate the short-run impacts of cargo traffic
between the airports. According to our findings, there are four positive
long-term equilibriums, one positive short-run dynamic and three negative
short-run dynamics in Asia. In addition, the airports in North America are
found to have four positive long-term equilibriums, three negative
long-run equilibriums, seven positive short-run impacts and three negative
short-run impacts. As these dynamic relationships imply competition
between cargo airports, our study can provide airport authorities with the
reference to develop their long-term strategies and short-run operational
plans.
Journal: Transportation Planning and Technology
Pages: 567-580
Issue: 7
Volume: 36
Year: 2013
Month: 10
X-DOI: 10.1080/03081060.2013.845430
File-URL: http://hdl.handle.net/10.1080/03081060.2013.845430
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Handle: RePEc:taf:transp:v:36:y:2013:i:7:p:567-580
Template-Type: ReDIF-Article 1.0
Author-Name: Zhongzhen Yang
Author-X-Name-First: Zhongzhen
Author-X-Name-Last: Yang
Author-Name: Jing Lu
Author-X-Name-First: Jing
Author-X-Name-Last: Lu
Author-Name: Xiaocong Zhu
Author-X-Name-First: Xiaocong
Author-X-Name-Last: Zhu
Author-Name: Peng Jia
Author-X-Name-First: Peng
Author-X-Name-Last: Jia
Title: Optimizing parcel delivery paths using a highway passenger transport-based express service
Abstract:
A unique commercial operation in China
that delivers express parcels within the storage compartments
(belly-holds) of highway passenger coaches is introduced. A new delivery
mode, called 'direct + transfer' delivery, is proposed. On the basis of
this mode, a model to optimize the delivery path is constructed by
considering the parcel arrival patterns, coach departure times, and
belly-hold capacity in the initial origin. The solution algorithm is
designed. In a case study, the probability distribution function of the
parcel arrival pattern is fitted, and the delivery paths of parcels from a
city to other cities in a region in China are calculated and analyzed.
Journal: Transportation Planning and Technology
Pages: 581-598
Issue: 7
Volume: 36
Year: 2013
Month: 10
X-DOI: 10.1080/03081060.2013.845431
File-URL: http://hdl.handle.net/10.1080/03081060.2013.845431
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Handle: RePEc:taf:transp:v:36:y:2013:i:7:p:581-598
Template-Type: ReDIF-Article 1.0
Author-Name: Marta Rojo
Author-X-Name-First: Marta
Author-X-Name-Last: Rojo
Author-Name: Luigi dell'Olio
Author-X-Name-First: Luigi
Author-X-Name-Last: dell'Olio
Author-Name: Hernán Gonzalo-Orden
Author-X-Name-First: Hernán
Author-X-Name-Last: Gonzalo-Orden
Author-Name: Ángel Ibeas
Author-X-Name-First: Ángel
Author-X-Name-Last: Ibeas
Title: Interurban bus service quality from the users' viewpoint
Abstract:
A model is proposed to determine the
global satisfaction of interurban bus service users. The most relevant
variables are determined globally for all users as well as by user
segments. Various ordered-type logit and probit models are fitted for user
behavior, to determine the most important variables from the point of view
of user-perceived quality. In addition, generic models, valid for all
users, are calibrated as well as others with systematic variations in user
preferences in order to discern what different groups of users value. The
variables that influence user satisfaction are selected. Users do not
place great value on the cost of the ticket, except for elderly people.
Moreover, although there are variables that are more difficult to change,
satisfactory connections of the bus station with other urban public
transport services, as well as its location in the city center are also
relevant for bus users. Even the duration (or speed) of the journey,
despite being significant, is not the most important point factor in a
global evaluation of the service. However, when comparing user's
satisfaction with the loyalty that users express toward ongoing use of the
service, almost half of all users affirm that they would not make the same
journey by bus if another mode of transport were available to them. Hence
the quality of public transport needs to be studied, in an interurban
context as well, to achieve greater use of the service and a reduction in
negative transport externalities.
Journal: Transportation Planning and Technology
Pages: 599-616
Issue: 7
Volume: 36
Year: 2013
Month: 10
X-DOI: 10.1080/03081060.2013.845432
File-URL: http://hdl.handle.net/10.1080/03081060.2013.845432
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Handle: RePEc:taf:transp:v:36:y:2013:i:7:p:599-616
Template-Type: ReDIF-Article 1.0
Author-Name: Indraswari Kusumaningtyas
Author-X-Name-First: Indraswari
Author-X-Name-Last: Kusumaningtyas
Author-Name: Gabriel Lodewijks
Author-X-Name-First: Gabriel
Author-X-Name-Last: Lodewijks
Title: On the application of accelerating moving walkways to support passenger processes in Amsterdam Airport Schiphol
Abstract:
Plans for the expansion of Amsterdam
Airport Schiphol (AAS) are likely to cause longer walking distances inside
the Schiphol Centrum passenger terminal. This can increase the risk in
maintaining established time schedules and minimum connecting times for
performing passenger processes. However, the currently installed
Conventional Moving Walkways (CMWs) are not always capable of providing
short travel times. In this paper, we investigate the application of
Accelerating Moving Walkways (AMWs) to support passenger processes in AAS,
particularly in terms of reducing travel times and walking distances. The
current situation in Schiphol Centrum is analysed with regard to walking
distances, passenger processing times and the time schedules and
connecting times. The application of AMWs in the terminal is evaluated
with regard to planning considerations such as location and transport
capacity, as well as the expected contribution and benefit from the
proposed systems in comparison to the current CMWs.
Journal: Transportation Planning and Technology
Pages: 617-635
Issue: 7
Volume: 36
Year: 2013
Month: 10
X-DOI: 10.1080/03081060.2013.845433
File-URL: http://hdl.handle.net/10.1080/03081060.2013.845433
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Handle: RePEc:taf:transp:v:36:y:2013:i:7:p:617-635
Template-Type: ReDIF-Article 1.0
Author-Name: Catherine Holloway
Author-X-Name-First: Catherine
Author-X-Name-Last: Holloway
Author-Name: Nick Tyler
Author-X-Name-First: Nick
Author-X-Name-Last: Tyler
Title: A micro-level approach to measuring the accessibility of footways for wheelchair users using the Capability Model
Abstract:
There are a growing number of people with
mobility impairments who use wheelchairs to get around the built
environment. This number is likely to increase in the future due to an
increasingly ageing population combined with advances in medical
technology which help to overcome some of the barriers to access that have
hitherto prevented people from leading as full a life as they would have
liked. Footways form an integral part of the transport network and
therefore it is essential they can be accessed by all people. Currently,
however, there is no well-defined method to measure the accessibility of
footways for wheelchair users. One aspect of a footway is the crossfall -
the transverse gradient designed to facilitate surface water drainage -
which adds to a wheelchair user's difficulty when progressing along the
footway. This paper first reviews previous research on measuring the
effect of crossfalls on wheelchair accessibility, highlighting the need
for a new approach. It then proposes the Capability Model as a starting
point for this new approach. The model is updated and populated with an
initial capability set chosen to measure footway accessibility across
footways with three different crossfall gradients (0%, 2.5% and 4%). The
focus is on the physical work provided by the user to the wheelchair in
order to keep it travelling in a straight line. It is shown that in order
to travel in a straight line when a footway is flat only a single
principal capability is required: the ability to produce sufficient force
over the required distance to overcome the inertia and rolling resistance
and keep the wheelchair moving at the chosen velocity. When a positive
crossfall gradient is introduced a second capability is required: the
ability to apply different levels of force to the left and right sides of
the wheelchair. It is concluded that it is possible to measure these two
capabilities and these provide a good insight into the effect of
crossfalls on footway accessibility for wheelchair users.
Journal: Transportation Planning and Technology
Pages: 636-649
Issue: 7
Volume: 36
Year: 2013
Month: 10
X-DOI: 10.1080/03081060.2013.845434
File-URL: http://hdl.handle.net/10.1080/03081060.2013.845434
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Handle: RePEc:taf:transp:v:36:y:2013:i:7:p:636-649
Template-Type: ReDIF-Article 1.0
Author-Name: Hongcheng Gan
Author-X-Name-First: Hongcheng
Author-X-Name-Last: Gan
Author-Name: Xin Ye
Author-X-Name-First: Xin
Author-X-Name-Last: Ye
Title: Investigation of drivers' diversion responses to urban freeway variable message signs displaying freeway and local street travel times
Abstract:
This paper explores urban freeway users'
diversion responses to D-VMS (a new type of freeway variable message sign
that explicitly provides travel times for both freeways and local streets)
in the context of China. An on-site stated preference questionnaire survey
was conducted to collect behavioral data. Four types of binary probit
models were estimated to identify the factors that influence diversion
behavior: the model with only constant coefficient and the models with
'normal', 'truncated normal', and 'log-normal' random coefficients. The
three models with random coefficients accommodate heterogeneous
preferences for travel time savings among drivers. The study shows that
drivers' en route decisions on diverting from a freeway to local streets
can be significantly influenced by D-VMS and the extent of the D-VMS
impacts depends on driver characteristics, local street characteristics,
and D-VMS messages. Main findings regarding D-VMS impacts are (1) travel
time savings and drivers' years of driving experience serve as positive
factors in diverting and (2) the number of traffic lights on the street,
frequency of urban freeway use, being a mid-age driver, and an
employer-provided car driver serve as negative factors in diverting. In
terms of heterogeneous preference modeling, likelihood ratio tests show
the three models with random coefficients obtain higher goodness of fits,
and preliminary evidence is given that a small portion of drivers are
insensitive to travel time savings indicated by D-VMS and persist in using
urban freeways. The findings of this study have implications for the
design and operation of D-VMS and for further effort on driver behavior
modeling.
Journal: Transportation Planning and Technology
Pages: 651-668
Issue: 8
Volume: 36
Year: 2013
Month: 12
X-DOI: 10.1080/03081060.2013.851504
File-URL: http://hdl.handle.net/10.1080/03081060.2013.851504
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Handle: RePEc:taf:transp:v:36:y:2013:i:8:p:651-668
Template-Type: ReDIF-Article 1.0
Author-Name: Yusak O. Susilo
Author-X-Name-First: Yusak O.
Author-X-Name-Last: Susilo
Author-Name: Nathan Hanks
Author-X-Name-First: Nathan
Author-X-Name-Last: Hanks
Author-Name: Mahmud Ullah
Author-X-Name-First: Mahmud
Author-X-Name-Last: Ullah
Title: An exploration of shoppers travel mode choice in visiting convenience stores in the UK
Abstract:
Using data from over 2000 convenience
store customers within and outside London, this paper explores how
individuals access their convenience stores and how significant the
influence of their socio-demographics, shopping types and trip chaining is
to their mode choice in visiting the stores. Trip chaining is found to be
crucial in influencing customers' mode choice and their visit frequency.
The application of logit models also shows that frequent shoppers are the
ones most likely to visit the stores on foot. Interestingly, the
estimation results also show that the location's density, shopping types
and the day of the week are not significant in influencing travel modes.
Customers who live in the most deprived areas are less likely to use a
private car in visiting the stores.
Journal: Transportation Planning and Technology
Pages: 669-684
Issue: 8
Volume: 36
Year: 2013
Month: 12
X-DOI: 10.1080/03081060.2013.851505
File-URL: http://hdl.handle.net/10.1080/03081060.2013.851505
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Handle: RePEc:taf:transp:v:36:y:2013:i:8:p:669-684
Template-Type: ReDIF-Article 1.0
Author-Name: Xin Tian
Author-X-Name-First: Xin
Author-X-Name-Last: Tian
Author-Name: Liming Liu
Author-X-Name-First: Liming
Author-X-Name-Last: Liu
Author-Name: K. K. Lai
Author-X-Name-First: K. K.
Author-X-Name-Last: Lai
Author-Name: Shouyang Wang
Author-X-Name-First: Shouyang
Author-X-Name-Last: Wang
Title: Analysis and forecasting of port logistics using TEI@I methodology
Abstract:
This paper presents an integrated
forecasting model based on the TEI@I methodology for forecasting demand
for port logistics services - specifically, port container throughput. The
model analyzes port logistics time series data and other information in
several steps. In the first step, several econometric models are built to
forecast the linear segment of port logistics time series. In the second
step, a radial basis function neural network is developed to predict the
nonlinear segment of the time series. In the third step, the event-study
method and expert system techniques are applied to evaluate the effects of
economic and other events that may impact demand for port logistics. In
the final step, synthetic forecasting results are obtained, based on the
integration of predictions from the above three steps. For an
illustration, Hong Kong port's container throughput series is used as a
case study. The empirical results show the effectiveness of the TEI@I
integrated model for port logistics forecasting.
Journal: Transportation Planning and Technology
Pages: 685-702
Issue: 8
Volume: 36
Year: 2013
Month: 12
X-DOI: 10.1080/03081060.2013.851506
File-URL: http://hdl.handle.net/10.1080/03081060.2013.851506
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Handle: RePEc:taf:transp:v:36:y:2013:i:8:p:685-702
Template-Type: ReDIF-Article 1.0
Author-Name: Seyedehsan Seyedabrishami
Author-X-Name-First: Seyedehsan
Author-X-Name-Last: Seyedabrishami
Author-Name: Yousef Shafahi
Author-X-Name-First: Yousef
Author-X-Name-Last: Shafahi
Title: A joint model of destination and mode choice for urban trips: a disaggregate approach
Abstract:
Trip destination and mode choice are
highly influenced by travelers' perceptions and behaviors; selecting a
destination and a vehicle for a trip are two interdependent problems. This
paper presents and applies a disaggregate joint model for traveler
destination and mode choice. The choice model uses fuzzy set and
probability theory to deal with the uncertainty embedded in travelers'
perceptions and behaviors. The model is structured as a decision tree in
which the fuzzy and non-fuzzy classification of influential variables
regarding destination selection and mode choice expand the tree. The most
influential explanatory variables among all the variables categorized for
travelers' household, trip, and living zone specifications are selected
based on the maximizing information. An aggregation method is designed to
provide aggregate estimates for transportation planning based on the
suggested disaggregate choice model. A data-set of over 9000 home-based
morning peak-hour trips in Shiraz, a large city in Iran, is used for model
construction and evaluation. When compared with a multinomial logit (MNL)
model, the suggested models' estimates are more accurate than the
traditional MNL model.
Journal: Transportation Planning and Technology
Pages: 703-721
Issue: 8
Volume: 36
Year: 2013
Month: 12
X-DOI: 10.1080/03081060.2013.851507
File-URL: http://hdl.handle.net/10.1080/03081060.2013.851507
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Handle: RePEc:taf:transp:v:36:y:2013:i:8:p:703-721
Template-Type: ReDIF-Article 1.0
Author-Name: Yi-Wen Kuo
Author-X-Name-First: Yi-Wen
Author-X-Name-Last: Kuo
Author-Name: Cheng-Hsien Hsieh
Author-X-Name-First: Cheng-Hsien
Author-X-Name-Last: Hsieh
Author-Name: Cheng-Min Feng
Author-X-Name-First: Cheng-Min
Author-X-Name-Last: Feng
Author-Name: Wen-Ya Yeh
Author-X-Name-First: Wen-Ya
Author-X-Name-Last: Yeh
Title: Effects of price promotions on potential consumers of high-speed rail
Abstract:
Effects of price promotions for high-speed
rail (HSR) on the choice behaviours of potential consumers are analysed
for public transit marketing purposes. A questionnaire survey, with 300
valid samples collected from private vehicle drivers with long-distance
trips through freeways, is conducted. Factor analysis is employed to
determine the constructs of service quality, while a discrete choice model
considering individual heterogeneity, namely a mixed logit model, with
stated preference is utilised to explore the diversion of passengers from
private vehicle drivers due to price promotions. Analytical results reveal
that service qualities, socio-economic characteristics and price
promotions significantly affect choice behaviours. Finally, some
strategies are developed from these analytical results to help a HSR
operator increase its market share.
Journal: Transportation Planning and Technology
Pages: 722-738
Issue: 8
Volume: 36
Year: 2013
Month: 12
X-DOI: 10.1080/03081060.2013.851508
File-URL: http://hdl.handle.net/10.1080/03081060.2013.851508
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Handle: RePEc:taf:transp:v:36:y:2013:i:8:p:722-738
Template-Type: ReDIF-Article 1.0
Author-Name: Stephen Ison
Author-X-Name-First: Stephen
Author-X-Name-Last: Ison
Author-Name: David Bonilla
Author-X-Name-First: David
Author-X-Name-Last: Bonilla
Title: Universities' Transport Study Group UK Annual Conference 2013
Journal: Transportation Planning and Technology
Pages: 1-2
Issue: 1
Volume: 37
Year: 2014
Month: 2
X-DOI: 10.1080/03081060.2013.868082
File-URL: http://hdl.handle.net/10.1080/03081060.2013.868082
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Template-Type: ReDIF-Article 1.0
Author-Name: Nicholas B. Taylor
Author-X-Name-First: Nicholas B.
Author-X-Name-Last: Taylor
Author-Name: Benjamin G. Heydecker
Author-X-Name-First: Benjamin G.
Author-X-Name-Last: Heydecker
Title: The effect of green time on stochastic queues at traffic signals
Abstract:
Many analyses of traffic signal queues use
Webster and Cobbe's formula, which combines the net effect of the
red/green cycle with a term representing stochastic effects, idealised as
an M/D/1 queue process having random arrivals and uniform service. Several
authors have noted that this component should depend not only on demand
intensity but also on throughput capacity in each green period, although
an extra empirical term may partially allow for this. Extending the
service interval in M/D/1 (M = Markovian, i.e. random, D = deterministic,
i.e. uniform, 1 = one server) enables the effect to be reproduced, but no
exact expressions for its moments are found. Approximate formulae for the
extended mean exist but are accurate only near saturation. The paper
derives novel approximations for the equilibrium mean and also variance
and utilisation, using functions linking traffic intensity with green
period capacity. With three moments, equilibrium probability distributions
can be estimated for which a method based on a doubly nested geometric
distribution is described.
Journal: Transportation Planning and Technology
Pages: 3-19
Issue: 1
Volume: 37
Year: 2014
Month: 2
X-DOI: 10.1080/03081060.2013.844907
File-URL: http://hdl.handle.net/10.1080/03081060.2013.844907
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Template-Type: ReDIF-Article 1.0
Author-Name: John Haith
Author-X-Name-First: John
Author-X-Name-Last: Haith
Author-Name: Daniel Johnson
Author-X-Name-First: Daniel
Author-X-Name-Last: Johnson
Author-Name: Chris Nash
Author-X-Name-First: Chris
Author-X-Name-Last: Nash
Title: The case for space: the measurement of capacity utilisation, its relationship with reactionary delay and the calculation of the capacity charge for the British rail network
Abstract:
In Britain, capacity charges are levied on
train operators to cover the costs imposed by increased reactionary delays
- i.e. the delay that an already late train causes to a following train.
These charges are based on the link between capacity utilisation and the
level of reactionary delay. An established method for measuring capacity
utilisation was adopted called The Capacity Utilisation Index (CUI). In
this paper, we propose an alternative methodology based on the theory that
the level of reactionary delay will be determined by the minimum gaps that
exist between trains. We test this measure with a new data-set for the
East Coast Main Line and show that it performs better than CUI. Finally,
we comment on the implications of this finding for charging and for the
construction of timetables.
Journal: Transportation Planning and Technology
Pages: 20-37
Issue: 1
Volume: 37
Year: 2014
Month: 2
X-DOI: 10.1080/03081060.2013.844906
File-URL: http://hdl.handle.net/10.1080/03081060.2013.844906
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Handle: RePEc:taf:transp:v:37:y:2014:i:1:p:20-37
Template-Type: ReDIF-Article 1.0
Author-Name: Tim Chatterton
Author-X-Name-First: Tim
Author-X-Name-Last: Chatterton
Author-Name: Charlie Wilson
Author-X-Name-First: Charlie
Author-X-Name-Last: Wilson
Title: The 'Four Dimensions of Behaviour' framework: a tool for characterising behaviours to help design better interventions
Abstract:
This paper sets out the rationale and
structure of a tool for assisting policy-makers and practitioners to
understand behavioural challenges and open up thinking on the design of
effective 'behaviour change' interventions. The 'Four Dimensions of
Behaviour' (4DB) framework is based on the theoretical and empirical
research in a range of policy domains including transport and
pro-environmental behaviour more generally. The 4DB framework
characterises multifaceted behaviours along dimensions of actor, domain,
durability and scope. Its application in workshop or structured settings
opens up diverse and non-exclusive discussion on designing interventions
to match salient behavioural characteristics. The use of the 4DB framework
in the transport domain is demonstrated for travel behaviours of interest
to policy-makers using examples of buying plug-in vehicles (PiVs),
commuting by bicycle, eco-driving and making business trips by train.
Journal: Transportation Planning and Technology
Pages: 38-61
Issue: 1
Volume: 37
Year: 2014
Month: 2
X-DOI: 10.1080/03081060.2013.850257
File-URL: http://hdl.handle.net/10.1080/03081060.2013.850257
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Handle: RePEc:taf:transp:v:37:y:2014:i:1:p:38-61
Template-Type: ReDIF-Article 1.0
Author-Name: Charles Musselwhite
Author-X-Name-First: Charles
Author-X-Name-Last: Musselwhite
Author-Name: Erel Avineri
Author-X-Name-First: Erel
Author-X-Name-Last: Avineri
Author-Name: Yusak O. Susilo
Author-X-Name-First: Yusak O.
Author-X-Name-Last: Susilo
Title: Legitimising risk taking: articulating dangerous behaviour on the road
Abstract:
Using a deliberative approach 228 members
of the public from four locations in the United Kingdom took part in six
focus groups that met on three occasions. Applying a model based on two
interlocking sets of theories (Ajzen's Theory of Planned Behaviour and
Bronfenbrenner's Ecological Systems Theory) in the analysis of
participants' responses, the paper explores the social and environmental
systems that an individual interacts with in the articulation of risky
behaviours on the road. Participants discussed how taking risks changed
over their lifecourse and how they became safer with age. Social norms and
perceived behavioural control influence road user safety behaviour through
the exchanging of attitudes, and younger drivers especially are more
likely to embrace the symbolic role of the car. The paper concludes that
the nature of identity and culture within risk taking is important when
designing interventions on the ground.
Journal: Transportation Planning and Technology
Pages: 62-82
Issue: 1
Volume: 37
Year: 2014
Month: 2
X-DOI: 10.1080/03081060.2013.844905
File-URL: http://hdl.handle.net/10.1080/03081060.2013.844905
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Handle: RePEc:taf:transp:v:37:y:2014:i:1:p:62-82
Template-Type: ReDIF-Article 1.0
Author-Name: Roger Beecham
Author-X-Name-First: Roger
Author-X-Name-Last: Beecham
Author-Name: Jo Wood
Author-X-Name-First: Jo
Author-X-Name-Last: Wood
Title: Exploring gendered cycling behaviours within a large-scale behavioural data-set
Abstract:
Analysing over 10 million journeys made by
members of London's Cycle Hire Scheme, we find that female customers'
usage characteristics are demonstrably different from those of male
customers. Usage at weekends and within London's parks characterises
women's journeys, whereas for men, a commuting function is more clearly
identified. Some of these variations are explained by geo-demographic
differences and by an atypical period of usage during the first three
months after the scheme's launch. Controlling for each of these variables
brings some convergence between men and women. However, many differences
are preserved. Studying the spatio-temporal context under which journeys
are made, we find that women's journeys are highly spatially structured.
Even when making utilitarian cycle trips, routes that involve large,
multi-lane roads are comparatively rare, and instead female cyclists
preferentially select areas of the city associated with slower traffic
streets and with cycle routes slightly offset from major roads.
Journal: Transportation Planning and Technology
Pages: 83-97
Issue: 1
Volume: 37
Year: 2014
Month: 2
X-DOI: 10.1080/03081060.2013.844903
File-URL: http://hdl.handle.net/10.1080/03081060.2013.844903
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Handle: RePEc:taf:transp:v:37:y:2014:i:1:p:83-97
Template-Type: ReDIF-Article 1.0
Author-Name: Gillian Harrison
Author-X-Name-First: Gillian
Author-X-Name-Last: Harrison
Author-Name: Simon Shepherd
Author-X-Name-First: Simon
Author-X-Name-Last: Shepherd
Title: An interdisciplinary study to explore impacts from policies for the introduction of low carbon vehicles
Abstract:
Driven by concerns of climate change,
governments across the world are introducing a number of policies to
accelerate the uptake of low carbon vehicles (LCVs), with a specific focus
on electric motors. However, there is uncertainty in the effectiveness of
such policies and technology pathways, which are inherently interlinked.
This article considers the short-term situation to 2020 and focuses on the
concern that these policies may bring about some disproportionate impacts
in society due to changes in mobility. An ethical framework is established
that seeks to balance obligations to reduce greenhouse gas (GHG) emissions
and rights to car ownership, then selected policies are modelled within
this framework to assess acceptability of implementation. Although these
policies are successful in introducing LCVs and reducing GHG emissions,
findings also indicate uneven cost burdens and reduced affordability of
car ownership. Following this, recommendations for policy amendments and
model improvements are made.
Journal: Transportation Planning and Technology
Pages: 98-117
Issue: 1
Volume: 37
Year: 2014
Month: 2
X-DOI: 10.1080/03081060.2013.844904
File-URL: http://hdl.handle.net/10.1080/03081060.2013.844904
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Handle: RePEc:taf:transp:v:37:y:2014:i:1:p:98-117
Template-Type: ReDIF-Article 1.0
Author-Name: Milos Milenkovic
Author-X-Name-First: Milos
Author-X-Name-Last: Milenkovic
Author-Name: Nebojsa Bojovic
Author-X-Name-First: Nebojsa
Author-X-Name-Last: Bojovic
Title: Fuzzy modeling approach to the rail freight car inventory problem
Abstract:
Techniques to improve freight car fleet
use are of considerable interest to the railroad industry. In this paper,
we present a fuzzy inventory control approach applied to the sizing of
empty cars on a rail network. We address the problem of deciding the
optimal inventory level and the optimal ordering quantity for a rail
freight car fleet system in which demand and travel time are uncertain
variables represented as triangular fuzzy numbers. Based on the fuzzy
economic order quantity (EOQ) formula, a modified fuzzy EOQ model is set
up and the optimal policy is developed using the signed distance method to
defuzzify the fuzzy total cost. Computational results made for the Serbian
rail network case verify the proposed model as well as the efficiency of
the approach.
Journal: Transportation Planning and Technology
Pages: 119-137
Issue: 2
Volume: 37
Year: 2014
Month: 3
X-DOI: 10.1080/03081060.2013.851509
File-URL: http://hdl.handle.net/10.1080/03081060.2013.851509
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Handle: RePEc:taf:transp:v:37:y:2014:i:2:p:119-137
Template-Type: ReDIF-Article 1.0
Author-Name: Ioanna Pagoni
Author-X-Name-First: Ioanna
Author-X-Name-Last: Pagoni
Author-Name: Voula Psaraki
Author-X-Name-First: Voula
Author-X-Name-Last: Psaraki
Title: A tool for calculating aircraft emissions and its application to Greek airspace
Abstract:
This paper quantifies the impact of
aircraft emissions on local air quality and climate change. Aircraft
emissions during the cruise cycle and the landing/take-off cycle are
considered. A tool is developed that computes emission values using
real-time air traffic data derived from various databases. Emissions
include carbon dioxide, hydrocarbons, carbon monoxide and nitrogen oxides.
The overall output is a detailed 'emissions map' of a given territory that
enables the identification of critical emission spots including routes,
airports, season, aircraft type and flight category. The method can be
used for real-time monitoring of airline emissions and for policy
analysis. The proposed tool and resulting outputs are illustrated in the
case of the Greek airport system using domestic, international and
overflights. Demand volatility driven mainly by tourism and its impact on
emissions is assessed.
Journal: Transportation Planning and Technology
Pages: 138-153
Issue: 2
Volume: 37
Year: 2014
Month: 3
X-DOI: 10.1080/03081060.2013.851510
File-URL: http://hdl.handle.net/10.1080/03081060.2013.851510
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Handle: RePEc:taf:transp:v:37:y:2014:i:2:p:138-153
Template-Type: ReDIF-Article 1.0
Author-Name: Subeh Chowdhury
Author-X-Name-First: Subeh
Author-X-Name-Last: Chowdhury
Author-Name: Avishai Ceder
Author-X-Name-First: Avishai
Author-X-Name-Last: Ceder
Author-Name: Ripul Sachdeva
Author-X-Name-First: Ripul
Author-X-Name-Last: Sachdeva
Title: The effects of planned and unplanned transfers on public transport users' perception of transfer routes
Abstract:
Many authorities are investing in new
infrastructure to improve the quality of public transport (PT) services in
the hope to increase mode switch from cars. The goal is to provide users
with an integrated multimodal PT network by facilitating transfers. There
exists a lack in the clarity of the attributes which defines a planned
transfer and the effects of planned transfers on users' willingness to use
routes with transfers. The present study provides approximate effects of
'planned' and 'unplanned' transfers on PT users' decisions to use transfer
routes. The study focuses on two attributes of 'planned' transfers,
integrated physical connection of transfers and information integration. A
user preference survey was undertaken in Auckland, New Zealand. Analysis
of the results shows that physical integration is more important than
information integration for current PT users. Results also suggest that
information integration has a greater influence on users of transfer
services which are more closely aligned to being 'unplanned'.
Journal: Transportation Planning and Technology
Pages: 154-168
Issue: 2
Volume: 37
Year: 2014
Month: 3
X-DOI: 10.1080/03081060.2013.851511
File-URL: http://hdl.handle.net/10.1080/03081060.2013.851511
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Handle: RePEc:taf:transp:v:37:y:2014:i:2:p:154-168
Template-Type: ReDIF-Article 1.0
Author-Name: Chin Long Mak
Author-X-Name-First: Chin Long
Author-X-Name-Last: Mak
Author-Name: Henry S.L. Fan
Author-X-Name-First: Henry S.L.
Author-X-Name-Last: Fan
Title: Algorithm fusion method to enhance automatic incident detection on Melbourne freeways
Abstract:
This paper addresses the transferability
issue faced by many practitioners in developing an effective and efficient
automatic incident detection algorithm for different freeways. An
algorithm fusion procedure developed for the Central Expressway in
Singapore is evaluated to demonstrate its transferability potential in
detecting lane-blocking incidents along freeways in Melbourne, Australia.
This study observes that the flow-based algorithm fusion options that use
a set of different detection threshold values for various pre-incident
traffic flow conditions possess promising transferability potential. They
give a reasonably high detection rate of above 80% with false alarm rate
levels below 0.2% with mean-time-to-detect values less than 150 seconds.
These flow-based algorithm fusion options significantly outperform a model
specifically developed for traffic conditions on freeways in Melbourne. In
conclusion, this method is capable of providing an alternative to the
commonly practiced methods in detecting incidents along different sites.
Journal: Transportation Planning and Technology
Pages: 169-185
Issue: 2
Volume: 37
Year: 2014
Month: 3
X-DOI: 10.1080/03081060.2013.870790
File-URL: http://hdl.handle.net/10.1080/03081060.2013.870790
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Handle: RePEc:taf:transp:v:37:y:2014:i:2:p:169-185
Template-Type: ReDIF-Article 1.0
Author-Name: Georges M. Arnaout
Author-X-Name-First: Georges M.
Author-X-Name-Last: Arnaout
Author-Name: Jean-Paul Arnaout
Author-X-Name-First: Jean-Paul
Author-X-Name-Last: Arnaout
Title: Exploring the effects of cooperative adaptive cruise control on highway traffic flow using microscopic traffic simulation
Abstract:
This paper examines the impact of having
cooperative adaptive cruise control (CACC) embedded vehicles on traffic
flow characteristics of a multilane highway system. The study identifies
how CACC vehicles affect the dynamics of traffic flow on a complex network
and reduce traffic congestion resulting from the acceleration/deceleration
of the operating vehicles. An agent-based microscopic traffic simulation
model (Flexible Agent-based Simulator of Traffic) is designed specifically
to examine the impact of these intelligent vehicles on traffic flow. The
flow rate of cars, the travel time spent, and other metrics indicating the
evolution of traffic congestion throughout the lifecycle of the model are
analyzed. Different CACC penetration levels are studied. The results
indicate a better traffic flow performance and higher capacity in the case
of CACC penetration compared to the scenario without CACC-embedded
vehicles.
Journal: Transportation Planning and Technology
Pages: 186-199
Issue: 2
Volume: 37
Year: 2014
Month: 3
X-DOI: 10.1080/03081060.2013.870791
File-URL: http://hdl.handle.net/10.1080/03081060.2013.870791
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Handle: RePEc:taf:transp:v:37:y:2014:i:2:p:186-199
Template-Type: ReDIF-Article 1.0
Author-Name: Ari K.M. Tarigan
Author-X-Name-First: Ari K.M.
Author-X-Name-Last: Tarigan
Author-Name: Yusak O. Susilo
Author-X-Name-First: Yusak O.
Author-X-Name-Last: Susilo
Author-Name: Tri B. Joewono
Author-X-Name-First: Tri B.
Author-X-Name-Last: Joewono
Title: Segmentation of paratransit users based on service quality and travel behaviour in Bandung, Indonesia
Abstract:
Using a data-set collected among
paratransit users in Bandung, Indonesia, this paper explores the impacts
of paratransit users' negative experiences and dissatisfactions with their
paratransit usage pattern. Segmentation and ordered probit analyses are
used to examine the impacts of users' opinions on service quality on their
trip-making behaviour. The results indicate that users are divided into
six segments - namely, the unlucky, the young user, the
experienced, the adapter, the infrequent user and the
captive. The results further indicate that paratransit users,
especially women, perceive negative experiences related to on-time
performance (departure and arrival time) and security issues related to
vehicles. Despite these dissatisfactions and negative experiences, they
are still likely to use paratransit as part of their daily life. Two
paratransit market segments (the adapter and the
captive) are also likely to result in more trips using
paratransit. The study offers several strategies and recommendations that
can improve the current paratransit system so that it can better serve
local needs.
Journal: Transportation Planning and Technology
Pages: 200-218
Issue: 2
Volume: 37
Year: 2014
Month: 3
X-DOI: 10.1080/03081060.2013.870792
File-URL: http://hdl.handle.net/10.1080/03081060.2013.870792
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Handle: RePEc:taf:transp:v:37:y:2014:i:2:p:200-218
Template-Type: ReDIF-Article 1.0
Author-Name: Chih-Lin Chung
Author-X-Name-First: Chih-Lin
Author-X-Name-Last: Chung
Author-Name: Will W. Recker
Author-X-Name-First: Will W.
Author-X-Name-Last: Recker
Title: Potential applications of speed dispersion in defining freeway level of service and air emissions evaluation
Abstract:
Speed dispersion, with respect to its
statistical relationships with fundamental traffic flow parameters, is
used to measure freeway level of service in the context of 'no more than
x% of vehicles with travel time up to y%
greater than the free flow condition.' It is argued that such a measure
not only reflects mobility, reliability, and - potentially - safety, but
also avoids the vague descriptions associated with each service level in
the current US Highway Capacity Manual. These relationships are then
applied to produce speed distribution estimates for the MOtor Vehicle
Emissions Simulator (MOVES) model. It is argued that the MOVES model's
approach limits the distribution in two speed bins, results in unsupported
speed dispersion, and may cause identical distributions under various
average speeds. The proposed revised approach based on speed dispersion
generates specific spread-out distributions consistent with empirical
data. The findings of these two applications bring new concepts to current
practice.
Journal: Transportation Planning and Technology
Pages: 219-234
Issue: 2
Volume: 37
Year: 2014
Month: 3
X-DOI: 10.1080/03081060.2013.870793
File-URL: http://hdl.handle.net/10.1080/03081060.2013.870793
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Handle: RePEc:taf:transp:v:37:y:2014:i:2:p:219-234
Template-Type: ReDIF-Article 1.0
Author-Name: Ronald John Galiza
Author-X-Name-First: Ronald John
Author-X-Name-Last: Galiza
Author-Name: Luis Ferreira
Author-X-Name-First: Luis
Author-X-Name-Last: Ferreira
Title: Converting mixed pedestrian flows into equivalent commuters using standard pedestrian equivalent factors
Abstract:
This paper develops the concept of
standard pedestrian equivalent (SPE) factors for converting a mixed
pedestrian flow into an equivalent commuter flow. After a comprehensive
review of passenger car equivalent (PCE) methodologies, the equal total
travel time method is utilised for SPE estimation. A micro-simulation
approach is employed for the formulation of the total travel time-flow
relationship. Field data collected on walking speed distributions for
commuters and older adults in Australia are used as model inputs. An
independent samples t-test confirms the significant
difference between walking speeds of commuters and older adults. For this
paper, a unidirectional flow on flat walkways is initially considered and
evaluated across proportions of older people, different flows and
different walkway widths. The introduction of older adults significantly
increases total travel time especially under congested conditions. Results
of this investigation can be used for evaluation or design of pedestrian
facilities experiencing similar flow conditions.
Journal: Transportation Planning and Technology
Pages: 235-246
Issue: 3
Volume: 37
Year: 2014
Month: 4
X-DOI: 10.1080/03081060.2013.875275
File-URL: http://hdl.handle.net/10.1080/03081060.2013.875275
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Handle: RePEc:taf:transp:v:37:y:2014:i:3:p:235-246
Template-Type: ReDIF-Article 1.0
Author-Name: David C. Broadstock
Author-X-Name-First: David C.
Author-X-Name-Last: Broadstock
Author-Name: Alan Collins
Author-X-Name-First: Alan
Author-X-Name-Last: Collins
Author-Name: Lester C. Hunt
Author-X-Name-First: Lester C.
Author-X-Name-Last: Hunt
Title: Determining trip attraction rates for the UK office developments with limited observations and missing data
Abstract:
Development planning decisions are heavily
reliant upon expensive and relatively scarce trip rate information data.
With a view to curtailing excessive car use, development planning
decisions must be made irrespective of how sparse the data are. In this
regard, this study uses the UK's primary data source for trip rate data
(Trip Rate Information Computer System, TRICS) to understand how
incomplete information can influence the types of development/policy
decisions that might arise from this data. Even within this source, there
are elements of missing data, and the decision of how to handle these data
gaps can affect planning decisions. Based upon a trip rate regression
model, a sensitivity analysis of several common methods for handling
incomplete data reveals there remains substantial divergence amongst what
superficially appears to be fairly robust parameter estimates and, hence,
planning outcomes.
Journal: Transportation Planning and Technology
Pages: 247-263
Issue: 3
Volume: 37
Year: 2014
Month: 4
X-DOI: 10.1080/03081060.2013.875276
File-URL: http://hdl.handle.net/10.1080/03081060.2013.875276
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Handle: RePEc:taf:transp:v:37:y:2014:i:3:p:247-263
Template-Type: ReDIF-Article 1.0
Author-Name: A. Tolón-Becerra
Author-X-Name-First: A.
Author-X-Name-Last: Tolón-Becerra
Author-Name: X. Lastra-Bravo
Author-X-Name-First: X.
Author-X-Name-Last: Lastra-Bravo
Author-Name: I. Flores-Parra
Author-X-Name-First: I.
Author-X-Name-Last: Flores-Parra
Title: National road mortality reduction targets under European Union road safety policy: 2011-2020
Abstract:
The European Union (EU) has proposed
renewing the target for halving the number of road fatalities in the
period 2011-2020. In this paper, a nonlinear distribution method for
dynamic fatality reduction targets is applied for the purpose of finding
individual national mortality reduction targets for each of the 27 member
countries in the EU. Weighting is undertaken for four scenarios based on
the following indicators: road mortality rates, fatality rates, fatality
risks, and fatality density. Results are presented for four proposals to
reduce the number of fatalities in each Member State, based on the
original situation of the indicators considered in the study. The results
seek to provide policy-makers with a broader vision with regard to the
achievement of the goals of EU road safety policy.
Journal: Transportation Planning and Technology
Pages: 264-286
Issue: 3
Volume: 37
Year: 2014
Month: 4
X-DOI: 10.1080/03081060.2013.875277
File-URL: http://hdl.handle.net/10.1080/03081060.2013.875277
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Handle: RePEc:taf:transp:v:37:y:2014:i:3:p:264-286
Template-Type: ReDIF-Article 1.0
Author-Name: Debasis Basu
Author-X-Name-First: Debasis
Author-X-Name-Last: Basu
Author-Name: John Douglas Hunt
Author-X-Name-First: John Douglas
Author-X-Name-Last: Hunt
Title: Value of travel time for home-based school tours in California
Abstract:
The behavioral value of travel time is an
important factor for evaluating alternative transportation facility or
service improvement projects based on road user-benefit approach. This
article presents the behavioral value of travel time with reference to
home-based school tour in California. Initially a single value of travel
time is quantified from multinomial logit and nested logit (NL) model
estimate. Later random parameter logit (RPL) model is employed by
specifying a random component for the travel time attribute. The values of
travel time emanating from RPL model estimate are quantified across
student population by assuming different types of tent-shaped random
distributions such as triangular and normal. In this study the value of
travel time is investigated separately for two types of home-based school
tour: grade school and college-university. Overall this study examines the
effect of alternative logit model specifications on quantification of
value of travel time. The study is demonstrated using household travel
diary data of the state of California, which is revealed preference in
nature.
Journal: Transportation Planning and Technology
Pages: 287-306
Issue: 3
Volume: 37
Year: 2014
Month: 4
X-DOI: 10.1080/03081060.2014.897125
File-URL: http://hdl.handle.net/10.1080/03081060.2014.897125
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Handle: RePEc:taf:transp:v:37:y:2014:i:3:p:287-306
Template-Type: ReDIF-Article 1.0
Author-Name: Xiaoming Chen
Author-X-Name-First: Xiaoming
Author-X-Name-Last: Chen
Author-Name: Yi Qi
Author-X-Name-First: Yi
Author-X-Name-Last: Qi
Author-Name: Da Li
Author-X-Name-First: Da
Author-X-Name-Last: Li
Author-Name: Yubian Wang
Author-X-Name-First: Yubian
Author-X-Name-Last: Wang
Title: Dual right-turn lanes in mitigating weaving conflicts at frontage road intersections in proximity to off-ramps
Abstract:
At frontage road intersections located
downstream of freeway off-ramps, the use of dual right-turn lanes may
provide improved weaving environments for right-turning vehicles from the
off-ramp and reduce forced merges toward the desired right-turn bay. This
paper investigates the safety impacts of the installation of dual
right-turn lanes at frontage road intersections. A two-stage approach is
used to estimate weaving conflicts as safety surrogates. In the first
stage, micro-simulation models are calibrated based on field data to
simulate vehicle trajectories. In the second stage, the trajectories are
processed to estimate surrogate safety measures and frequency of weaving
conflicts under different conditions. The two-stage approach is validated
by correlation analysis between predicted weaving conflicts and actual
crash rates. The results show that dual right-turn lanes can reduce
weaving conflicts significantly compared to single exclusive right-turn
lanes, and the safety benefits increase exponentially as weaving distance
is reduced.
Journal: Transportation Planning and Technology
Pages: 307-319
Issue: 3
Volume: 37
Year: 2014
Month: 4
X-DOI: 10.1080/03081060.2014.897126
File-URL: http://hdl.handle.net/10.1080/03081060.2014.897126
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Handle: RePEc:taf:transp:v:37:y:2014:i:3:p:307-319
Template-Type: ReDIF-Article 1.0
Author-Name: Caspar G. Chorus
Author-X-Name-First: Caspar G.
Author-X-Name-Last: Chorus
Title: Risk aversion, regret aversion and travel choice inertia: an experimental study
Abstract:
This paper presents the results of an
experimental study into the role of risk aversion and regret aversion as
codeterminants of travel choice inertia. Theoretical results published by
Chorus and Dellaert are tested empirically. More specifically, the
expectation is tested that when (1) travelers are risk averse, (2) the
quality of travel choices is uncertain, and (3) the quality is partially
revealed upon usage, travel choice inertia emerges as a learning-based
lock-in effect. In addition, this paper studies the role of regret
aversion as a possible trigger of travel choice inertia. Analyses are
based on data collected in an experiment, where the reward that
participants obtain is a function of the outcome of choices they make.
Empirical results suggest that the learning-based lock-in effect indeed
plays a role in the context of our data. The evidence for the hypothesis
that regret aversion triggers inertia is mixed at best.
Journal: Transportation Planning and Technology
Pages: 321-332
Issue: 4
Volume: 37
Year: 2014
Month: 6
X-DOI: 10.1080/03081060.2014.899076
File-URL: http://hdl.handle.net/10.1080/03081060.2014.899076
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Handle: RePEc:taf:transp:v:37:y:2014:i:4:p:321-332
Template-Type: ReDIF-Article 1.0
Author-Name: Joakim Ekström
Author-X-Name-First: Joakim
Author-X-Name-Last: Ekström
Author-Name: Leonid Engelson
Author-X-Name-First: Leonid
Author-X-Name-Last: Engelson
Author-Name: Clas Rydergren
Author-X-Name-First: Clas
Author-X-Name-Last: Rydergren
Title: Optimal toll locations and toll levels in congestion pricing schemes: a case study of Stockholm
Abstract:
As congestion pricing has moved from
theoretical ideas in the literature to real-world implementation, the need
for decision support when designing pricing schemes has become evident.
This paper deals with the problem of finding optimal toll levels and
locations in a road traffic network and presents a case study of
Stockholm. The optimisation problem of finding optimal toll levels, given
a predetermined cordon, and the problem of finding both optimal toll
locations and levels are presented, and previously developed heuristics
are used for solving these problems. For the Stockholm case study, the
possible welfare gains of optimising toll levels in the current cordon and
optimising both toll locations and their corresponding toll levels are
evaluated. It is shown that by tuning the toll levels in the current
congestion pricing cordon used in Stockholm, the welfare gain can be
increased significantly, and furthermore improved by allowing a toll on a
major bypass highway. It is also shown that, by optimising both toll
locations and levels, a congestion pricing scheme with welfare gain close
to what can be achieved by marginal social cost pricing can be designed
with tolls being located on only a quarter of the tollable links.
Journal: Transportation Planning and Technology
Pages: 333-353
Issue: 4
Volume: 37
Year: 2014
Month: 6
X-DOI: 10.1080/03081060.2014.897129
File-URL: http://hdl.handle.net/10.1080/03081060.2014.897129
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Handle: RePEc:taf:transp:v:37:y:2014:i:4:p:333-353
Template-Type: ReDIF-Article 1.0
Author-Name: Francisco J. Calvo
Author-X-Name-First: Francisco J.
Author-X-Name-Last: Calvo
Author-Name: Juan de Oña
Author-X-Name-First: Juan
Author-X-Name-Last: de Oña
Author-Name: Rocío de Oña
Author-X-Name-First: Rocío
Author-X-Name-Last: de Oña
Author-Name: Griselda López
Author-X-Name-First: Griselda
Author-X-Name-Last: López
Author-Name: Laura Garach
Author-X-Name-First: Laura
Author-X-Name-Last: Garach
Title: A proposal for cost-related and market-oriented train running charges
Abstract:
This paper examines some key aspects of a
charging system for promoting railway transport, including charges
reflecting a clear relationship with costs (transparency) and charges
reflecting the quality of the infrastructure manager's service. Train
running charges recover track-related costs and can help to develop a
charging system that meets these requirements. To orient train running
charges to the market, a method for processing track maintenance and
renewal costs is proposed whereby the quality of the service provided by
an infrastructure is measured according to its utility to the railway
undertaking. To achieve transparency, a single indicator is used for cost
planning and the subsequent levying of costs on railway undertakings. The
paper includes an example of how proposed train running charges would be
calculated according to data from 14 European countries. The example shows
that short-distance trains generate the lowest maintenance and renewal
costs, followed by long-distance trains and freight trains.
Journal: Transportation Planning and Technology
Pages: 354-372
Issue: 4
Volume: 37
Year: 2014
Month: 6
X-DOI: 10.1080/03081060.2014.897127
File-URL: http://hdl.handle.net/10.1080/03081060.2014.897127
File-Format: text/html
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Handle: RePEc:taf:transp:v:37:y:2014:i:4:p:354-372
Template-Type: ReDIF-Article 1.0
Author-Name: Mohamad Raduan bin Kabit
Author-X-Name-First: Mohamad Raduan bin
Author-X-Name-Last: Kabit
Author-Name: Phil Charles
Author-X-Name-First: Phil
Author-X-Name-Last: Charles
Author-Name: Luis Ferreira
Author-X-Name-First: Luis
Author-X-Name-Last: Ferreira
Author-Name: Inhi Kim
Author-X-Name-First: Inhi
Author-X-Name-Last: Kim
Title: Modelling major traffic incident impacts and estimation of their associated costs
Abstract:
Network area-wide impacts due to major
traffic incidents can be assessed using a microsimulation approach. A
VISSIM microsimulation model for a motorway network has been developed and
is used to quantify impacts of a major incident in terms of associated
costs. The modelled results reveal that a 65% capacity reduction results
in 36% more incident-induced delay when compared with the application of a
50% capacity reduction assumption for a two-hour incident clearance
duration that blocked one lane of a two-lane motorway. Additionally, an
incident which caused a full blockage incurred 40 times more associated
impact costs when compared with a major incident which caused a one lane
blockage. A 23% cost saving can be achieved by clearing one lane of a
fully blocked two-hour major traffic incident after 90 minutes, while a
37% cost saving can be achieved by clearing all blockages after 90
minutes.
Journal: Transportation Planning and Technology
Pages: 373-390
Issue: 4
Volume: 37
Year: 2014
Month: 6
X-DOI: 10.1080/03081060.2014.897130
File-URL: http://hdl.handle.net/10.1080/03081060.2014.897130
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Handle: RePEc:taf:transp:v:37:y:2014:i:4:p:373-390
Template-Type: ReDIF-Article 1.0
Author-Name: F. Golbabaei
Author-X-Name-First: F.
Author-X-Name-Last: Golbabaei
Author-Name: F. Moghadas Nejad
Author-X-Name-First: F. Moghadas
Author-X-Name-Last: Nejad
Author-Name: A.R. Noory
Author-X-Name-First: A.R.
Author-X-Name-Last: Noory
Title: A microscopic analysis of speed deviation impacts on lane-changing behavior
Abstract:
Driving behavior models that capture
drivers' tactical maneuvering decisions in different traffic conditions
are essential to microscopic traffic simulation systems. This paper
focuses on a parameter that has a great impact on road
users' aggressive overtaking maneuvers and directly affects lane-changing
models (an integral part of microscopic traffic simulation models),
namely, speed deviation. The objective of this research is to investigate
the impacts of speed deviation in terms of performance measures (delay
time, network mean speed, and travel time duration) and the number of
lane-change maneuvers using the Aimsun traffic simulator. Following
calibration of the model for a section of urban highway in Tehran, this
paper explores the sensitivity of lane-changing maneuvers during different
speed deviations by conducting two types of test. Simulation results show
that, by decreasing speed deviation, the number of lane changes reduces
remarkably and so network safety increases, thus reducing travel time due
to an increase in network mean speed.
Journal: Transportation Planning and Technology
Pages: 391-407
Issue: 4
Volume: 37
Year: 2014
Month: 6
X-DOI: 10.1080/03081060.2014.897128
File-URL: http://hdl.handle.net/10.1080/03081060.2014.897128
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Handle: RePEc:taf:transp:v:37:y:2014:i:4:p:391-407
Template-Type: ReDIF-Article 1.0
Author-Name: Milan Janic
Author-X-Name-First: Milan
Author-X-Name-Last: Janic
Title: Estimating the long-term effects of different passenger car technologies on energy/fuel consumption and emissions of greenhouse gases in Europe
Abstract:
This paper estimates the prospective long-term effects of innovative and
new passenger car technologies such as hybrid vehicles, battery electric
vehicles, hydrogen vehicles and hydrogen fuel cell vehicles on energy/fuel
consumption and related emissions of greenhouse gases (GHGs) in a given
region - Europe. For such purposes, a methodology for estimating these
effects is developed consisting of three models: (1) a model for
determining the volumes of passenger car use; (2) a model for calculating
energy consumption of particular passenger car technologies; and (3) a
model for quantifying emissions of GHG by these passenger car technologies
under given conditions. The methodology is applied to the region of the 27
Member States of the European Union using the 'what-if?' scenario
approach. Results include estimates of the annual and cumulative
quantities of GHGs in terms of carbon dioxide equivalents emitted under
the given scenarios.
Journal: Transportation Planning and Technology
Pages: 409-429
Issue: 5
Volume: 37
Year: 2014
Month: 7
X-DOI: 10.1080/03081060.2014.912417
File-URL: http://hdl.handle.net/10.1080/03081060.2014.912417
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Handle: RePEc:taf:transp:v:37:y:2014:i:5:p:409-429
Template-Type: ReDIF-Article 1.0
Author-Name: Jen-Jia Lin
Author-X-Name-First: Jen-Jia
Author-X-Name-Last: Lin
Author-Name: Huei-In Wong
Author-X-Name-First: Huei-In
Author-X-Name-Last: Wong
Title: Optimization of a feeder-bus route design by using a multiobjective programming approach
Abstract:
This paper presents a feeder-bus route design model, capable of minimizing
route length, minimizing maximum route travel time of planned routes, and
maximizing service coverage for trip generation. The proposed model
considers constraints of route connectivity, subtour prevention, travel
time upper bound of a route, relationships between route layout and
service coverage, and value ranges of decision variables. Parameter
uncertainties are dealt with using fuzzy numbers, and the model is
developed as a multiobjective programming problem. A case study of a metro
station in Taichung City, Taiwan is then conducted. Next, the programming
problem in the case study is solved, based on the technique for order
preference by similarity to ideal solution approach to obtain the
compromise route design. Results of the case study confirm that the routes
of the proposed model perform better than existing routes in terms of
network length and service coverage. Additionally, increasing the number
of feeder-bus routes decreases maximum route travel time, increases
service coverage, and increases network length. To our knowledge, the
proposed model is the first bus route design model in the literature to
consider simultaneously various stakeholder needs and support for bus
route planners in developing alternatives for further evaluation
efficiently and systematically.
Journal: Transportation Planning and Technology
Pages: 430-449
Issue: 5
Volume: 37
Year: 2014
Month: 7
X-DOI: 10.1080/03081060.2014.912418
File-URL: http://hdl.handle.net/10.1080/03081060.2014.912418
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Handle: RePEc:taf:transp:v:37:y:2014:i:5:p:430-449
Template-Type: ReDIF-Article 1.0
Author-Name: Dilek Tuzun Aksu
Author-X-Name-First: Dilek
Author-X-Name-Last: Tuzun Aksu
Author-Name: Samet Yılmaz
Author-X-Name-First: Samet
Author-X-Name-Last: Yılmaz
Title: Transit coordination with heterogeneous headways
Abstract:
We consider the transit coordination problem with heterogeneous headways.
Timetables with heterogeneous headways improve coordination between
transit lines and reduce transfer time for connecting passengers.
Unfortunately, deviating from homogeneous headways impacts adversely on
initial waiting times experienced prior to embarking on the initial
vehicle of a trip. We focus on this trade-off between transfer waiting
time and initial waiting time, which has not been explored previously, and
develop a mathematical model to quantify the benefits of heterogeneous
headways. We also propose a genetic algorithm (GA) to solve the transit
coordination problem with heterogeneous headways and demonstrate the
benefit of heterogeneous headways based on two examples from the
literature and one real-life example based on the rail transit network of
Istanbul. Computational results suggest that the GA solves the transit
coordination problem within a reasonable time and significant benefits can
be achieved by adopting timetables with heterogeneous headways.
Journal: Transportation Planning and Technology
Pages: 450-465
Issue: 5
Volume: 37
Year: 2014
Month: 7
X-DOI: 10.1080/03081060.2014.912419
File-URL: http://hdl.handle.net/10.1080/03081060.2014.912419
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Handle: RePEc:taf:transp:v:37:y:2014:i:5:p:450-465
Template-Type: ReDIF-Article 1.0
Author-Name: Yuanqing Wang
Author-X-Name-First: Yuanqing
Author-X-Name-Last: Wang
Author-Name: Lei Li
Author-X-Name-First: Lei
Author-X-Name-Last: Li
Author-Name: Li Wang
Author-X-Name-First: Li
Author-X-Name-Last: Wang
Author-Name: Adrian Moore
Author-X-Name-First: Adrian
Author-X-Name-Last: Moore
Author-Name: Samuel Staley
Author-X-Name-First: Samuel
Author-X-Name-Last: Staley
Author-Name: Zongzhi Li
Author-X-Name-First: Zongzhi
Author-X-Name-Last: Li
Title: Modeling traveler mode choice behavior of a new high-speed rail corridor in China
Abstract:
This study examines mode choice behavior for intercity business and
personal/recreational trips. It uses multinomial logit and nested logit
methods to analyze revealed preference data provided by travelers along
the Yong-Tai-Wen multimodal corridor in Zhejiang, China. Income levels are
found to be positively correlated with mode share increases for high-speed
rail (HSR), expressway-based bus, and auto modes, while travel time and
trip costs are negatively correlated with modal shift. Longer distance
trips trigger modal shifts to HSR services but prevent modal shift to
expressway-based auto use due to escalation of fuel cost and toll charges.
Travelers are less elastic in their travel time and cost for trips by
nonexpressway-based auto use modes. The magnitude of elasticity for travel
time is higher than trip costs for business trips and lower for
personal/recreational trips. The study provides some policy suggestions
for transportation planners and decision-makers.
Journal: Transportation Planning and Technology
Pages: 466-483
Issue: 5
Volume: 37
Year: 2014
Month: 7
X-DOI: 10.1080/03081060.2014.912420
File-URL: http://hdl.handle.net/10.1080/03081060.2014.912420
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Handle: RePEc:taf:transp:v:37:y:2014:i:5:p:466-483
Template-Type: ReDIF-Article 1.0
Author-Name: S.S.V. Subbarao
Author-X-Name-First: S.S.V.
Author-X-Name-Last: Subbarao
Author-Name: K.V.K. Rao
Author-X-Name-First: K.V.K.
Author-X-Name-Last: Rao
Title: Characteristics of household activity and travel patterns in the Mumbai metropolitan region
Abstract:
Activity-based modelling approaches require a typical survey instrument
which can collect the finer details of activities of each individual over
both time and space. This paper focuses on the design of a new survey
instrument called an activity-travel diary; examines its method of
administration; and analyses activity-travel behaviour in the context of
developing countries. The Mumbai Metropolitan Region in India is selected
as the study area. With the aim of understanding the activities of each
individual over a period of time, a pilot survey was conducted in a
continuous time frame for a period of 15 days, followed by a main survey.
The analysis of data collected by the instrument reveals some interesting
facts regarding the relationships between socioeconomic attributes,
activities and trip making behaviour. Identification of interactions among
households and other members were also facilitated by the newly designed
diary, which is not a well-versed topic for research in the context of a
developing economy like Mumbai's.
Journal: Transportation Planning and Technology
Pages: 484-504
Issue: 5
Volume: 37
Year: 2014
Month: 7
X-DOI: 10.1080/03081060.2014.912421
File-URL: http://hdl.handle.net/10.1080/03081060.2014.912421
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Handle: RePEc:taf:transp:v:37:y:2014:i:5:p:484-504
Template-Type: ReDIF-Article 1.0
Author-Name: Guoqiang Shen
Author-X-Name-First: Guoqiang
Author-X-Name-Last: Shen
Author-Name: Saniye Gizem Aydin
Author-X-Name-First: Saniye Gizem
Author-X-Name-Last: Aydin
Title: Origin-destination missing data estimation for freight transportation planning: a gravity model-based regression approach
Abstract:
This paper develops a log-linear
regression approach to estimate missing data in a sparse
origin-destination (O-D) matrix assuming the sampled or observed O-D trips
follow a good gravity pattern. The approach is tested with randomly
selected samples from the known portions of 1997, 2002, and 2007 US
Commodity Flow Survey (CFS) O-D value and tonnage matrices and validated
with 2007 US O-D tonnage matrix at the state level. The missing data are
also estimated for the 2007 CFS tonnage matrix with the best intercept and
coefficients obtained using all known entries of the matrix. The concept
of the approach can be extended beyond the gravity model to any strong
mathematical pattern embedded in the known set of a sparse O-D matrix to
estimate its missing cells.
Journal: Transportation Planning and Technology
Pages: 505-524
Issue: 6
Volume: 37
Year: 2014
Month: 8
X-DOI: 10.1080/03081060.2014.927665
File-URL: http://hdl.handle.net/10.1080/03081060.2014.927665
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Handle: RePEc:taf:transp:v:37:y:2014:i:6:p:505-524
Template-Type: ReDIF-Article 1.0
Author-Name: Tzay-An Shiau
Author-X-Name-First: Tzay-An
Author-X-Name-Last: Shiau
Title: Evaluating transport infrastructure decisions under uncertainty
Abstract:
This study uses a hybrid approach,
combining cost-benefit analysis (CBA), multiple criteria decision
analysis, and Dempster-Shafer Theory, to evaluate transport infrastructure
decisions. This approach not only retains the advantages of CBA, but it
also facilitates the incorporation of incomplete information into the
evaluation process. A particular advantage of this hybrid approach is that
it can synthesize evaluation results into an easily understood unit,
namely utility. A case study of Taiwan's Tamsui-Taipei Riverside Highway
Project is used to illustrate the evaluation method. The evaluation
results show that, whereas government officials and city council members
support the highway project, academic researchers oppose it. Overall, the
decision group tends to positively approve this transport infrastructure
investment. These results also reflect the actual situation in Taiwan as
stakeholders grapple with the issues arising from the proposed
Tamsui-Taipei Riverside Highway Project.
Journal: Transportation Planning and Technology
Pages: 525-538
Issue: 6
Volume: 37
Year: 2014
Month: 8
X-DOI: 10.1080/03081060.2014.921405
File-URL: http://hdl.handle.net/10.1080/03081060.2014.921405
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Handle: RePEc:taf:transp:v:37:y:2014:i:6:p:525-538
Template-Type: ReDIF-Article 1.0
Author-Name: Hsu-Hao Yang
Author-X-Name-First: Hsu-Hao
Author-X-Name-Last: Yang
Author-Name: Yen-Sheng Huang
Author-X-Name-First: Yen-Sheng
Author-X-Name-Last: Huang
Title: Non-parametric analyses of efficiency of airports
Abstract:
This paper estimates the efficiencies and
productivity changes of 12 international airports in the Asia-Pacific
region based on data from 1998 to 2006. We apply stochastic frontier
analysis (SFA) to compute efficiency estimates and use the Malmquist
productivity index (MPI) to analyze productivity changes. We use the SFA
model with a translog-type production function after testing the
statistical hypotheses. According to the results of the SFA hypothesis
tests, airports have experienced a technological regression; the
deviations from the efficiency frontier are caused more by technical
inefficiency than random noise. However, the inefficiency was found to
decrease. The MPI reveals a declining trend resulting more from
technological change than from efficiency change, with a decrease in
inefficiency. Taken together, both the hypothesis tests and the MPI not
only provide consistent conclusions, but also suggest that airports should
concentrate on technological progress.
Journal: Transportation Planning and Technology
Pages: 539-553
Issue: 6
Volume: 37
Year: 2014
Month: 8
X-DOI: 10.1080/03081060.2014.921406
File-URL: http://hdl.handle.net/10.1080/03081060.2014.921406
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Handle: RePEc:taf:transp:v:37:y:2014:i:6:p:539-553
Template-Type: ReDIF-Article 1.0
Author-Name: Yan Xing
Author-X-Name-First: Yan
Author-X-Name-Last: Xing
Author-Name: Susan Handy
Author-X-Name-First: Susan
Author-X-Name-Last: Handy
Title: Online versus phone surveys: comparison of results for a bicycling survey
Abstract:
Researchers in the transportation field
rely heavily on traditional random-digit-dialing phone surveys and
increasingly on online surveys. Many studies have looked at the strengths
and weaknesses of the two methods, but few have examined differences in
the inferences that can be drawn from the data generated by the two survey
methods. In this paper, we compare both descriptive and inferential
results from online and phone surveys with identical questions conducted
in Davis, California. Results show that although bicycling behavior does
not differ across the two survey samples, many socio-demographic
characteristics do. The models developed from each sample have several
statistically indistinguishable coefficients but also notable differences
in key explanatory factors. The results suggest that online and phone
survey methods have the potential to produce significantly different
results, both descriptively and inferentially.
Journal: Transportation Planning and Technology
Pages: 554-567
Issue: 6
Volume: 37
Year: 2014
Month: 8
X-DOI: 10.1080/03081060.2014.921407
File-URL: http://hdl.handle.net/10.1080/03081060.2014.921407
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Handle: RePEc:taf:transp:v:37:y:2014:i:6:p:554-567
Template-Type: ReDIF-Article 1.0
Author-Name: Wei-Chun Hsu
Author-X-Name-First: Wei-Chun
Author-X-Name-Last: Hsu
Author-Name: Lin Lin
Author-X-Name-First: Lin
Author-X-Name-Last: Lin
Author-Name: Chen-Yu Li
Author-X-Name-First: Chen-Yu
Author-X-Name-Last: Li
Title: Forecasting automobile sales: the Peña-Box approach
Abstract:
As a response to growing concerns
regarding the call for clean energy and its impact on future automobile
sales, this study uses a classical factor model and the Peña-Box model to
examine the contemporary and time-varying relationships of different
brands/models of cars in Taiwan between 2003 and 2007. In this paper, we
demonstrate the complementary characteristics of these two analytical and
forecasting methods. The results confirm that these two models can derive
equally important but different information from the same time series
data. Furthermore, the models are a useful marketing tool for discovering
the current preferences of car purchasers, as well as their preference
changes over time.
Journal: Transportation Planning and Technology
Pages: 568-580
Issue: 6
Volume: 37
Year: 2014
Month: 8
X-DOI: 10.1080/03081060.2014.921408
File-URL: http://hdl.handle.net/10.1080/03081060.2014.921408
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Handle: RePEc:taf:transp:v:37:y:2014:i:6:p:568-580
Template-Type: ReDIF-Article 1.0
Author-Name: Chih-Lin Chung
Author-X-Name-First: Chih-Lin
Author-X-Name-Last: Chung
Author-Name: Will W. Recker
Author-X-Name-First: Will W.
Author-X-Name-Last: Recker
Title: Characteristics of speed dispersion and its relationship to fundamental traffic flow parameters
Abstract:
Speed dispersion is essential for
transportation research but inaccessible to certain sensors that simply
record density, mean speed, and/or flow. An alternative is to relate speed
dispersion with these available parameters. This paper is compiled from
nearly a quarter million observations on an urban freeway and a resulting
data-set with two speed dispersion measures and the three fundamental
parameters. Data are examined individually by lane and aggregately by
direction. The first dispersion measure, coefficient of variation of
speed, is found to be exponential with density, negative exponential with
mean speed, and two-phase linear to flow. These empirical relationships
are proven to be general for a variety of coefficient ranges under the
above function forms. The second measure, standard deviation of speed,
does not present any simple relationships to the fundamental parameters,
and its maximum occurs at around a half to two-thirds of the free flow
speed. Speed dispersion may be significantly different by lane.
Journal: Transportation Planning and Technology
Pages: 581-597
Issue: 7
Volume: 37
Year: 2014
Month: 10
X-DOI: 10.1080/03081060.2014.921404
File-URL: http://hdl.handle.net/10.1080/03081060.2014.921404
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Handle: RePEc:taf:transp:v:37:y:2014:i:7:p:581-597
Template-Type: ReDIF-Article 1.0
Author-Name: Claudine J. Moutou
Author-X-Name-First: Claudine J.
Author-X-Name-Last: Moutou
Author-Name: Stephen P. Greaves
Author-X-Name-First: Stephen P.
Author-X-Name-Last: Greaves
Title: Determining strategies to increase response rates in transport surveys of small shop-based businesses
Abstract:
Increasing representation of small
business perspectives in policy research would benefit from identifying
strategies to increase response rates. Despite the significance of the
issue, there is inconsistent reporting amongst small business research
about issues such as sampling, recruitment and survey design. Reporting on
such issues may help address the under-representation of small business
respondents and help reduce wasting research resources on less effective
strategies. For policy matters that have the potential to disrupt how
small business owners run their business, this is of particular
importance. This paper reports on a survey of small businesses about
changes to the transport accessibility features of a town centre that have
the potential to affect the supply of car parking. Based on a review of
the available literature, strategies were adopted to reduce respondent
burden and maximise engagement. The paper presents an analysis of
recruitment approaches in the first wave of the survey and demonstrates
how the refinements to the recruitment approach were successful in
achieving an increase in response rate from 40% to 47%.
Journal: Transportation Planning and Technology
Pages: 598-622
Issue: 7
Volume: 37
Year: 2014
Month: 10
X-DOI: 10.1080/03081060.2014.935568
File-URL: http://hdl.handle.net/10.1080/03081060.2014.935568
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Handle: RePEc:taf:transp:v:37:y:2014:i:7:p:598-622
Template-Type: ReDIF-Article 1.0
Author-Name: Sebastián Lozano
Author-X-Name-First: Sebastián
Author-X-Name-Last: Lozano
Author-Name: Ester Gutiérrez
Author-X-Name-First: Ester
Author-X-Name-Last: Gutiérrez
Title: A slacks-based network DEA efficiency analysis of European airlines
Abstract:
Conventional data envelopment analysis
(DEA) models consider a system as a single-process 'black box'. There are,
however, DEA approaches that consider a system as composed of distinct
processes or stages, each one with its own inputs and outputs and with
intermediate flows among the stages. In this paper, a network DEA approach
to airline efficiency assessment is presented. One conclusion of the study
is that the network DEA approach has more discriminative power than the
single-process DEA approach and that the computed targets, efficiency
scores and rankings are more valid. This is because network DEA allows for
a more fine-grained analysis that leads to a more realistic estimation of
the overall system production possibility set than the one assumed by
conventional DEA. In other words, compared with network DEA the
conventional, single-process DEA represents an aggregated analysis that
merges all system processes with their inputs and outputs and ignores
their internal flows. The main drawbacks are the need for more detailed
data (i.e. at the process level) and the greater complexity of the
resulting models, especially if there are inputs or outputs that are
shared among the processes.
Journal: Transportation Planning and Technology
Pages: 623-637
Issue: 7
Volume: 37
Year: 2014
Month: 10
X-DOI: 10.1080/03081060.2014.935569
File-URL: http://hdl.handle.net/10.1080/03081060.2014.935569
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Handle: RePEc:taf:transp:v:37:y:2014:i:7:p:623-637
Template-Type: ReDIF-Article 1.0
Author-Name: Ľudmila Jánošíková
Author-X-Name-First: Ľudmila
Author-X-Name-Last: Jánošíková
Author-Name: Jiří Slavík
Author-X-Name-First: Jiří
Author-X-Name-Last: Slavík
Author-Name: Michal Koháni
Author-X-Name-First: Michal
Author-X-Name-Last: Koháni
Title: Estimation of a route choice model for urban public transport using smart card data
Abstract:
This paper describes a logit model of
route choice for urban public transport and explains how the archived data
from a smart card-based fare payment system can be used for the choice set
generation and model estimation. It demonstrates the feasibility and
simplicity of applying a trip-chaining method to infer passenger journeys
from smart card transactions data. Not only origins and destinations of
passenger journeys can be inferred but also the interchanges between the
segments of a linked journey can be recognised. The attributes of the
corresponding routes, such as in-vehicle travel time, transfer walking
time and to get from alighting stop to trip destination, the need to
change, and the time headway of the first transportation line, can be
determined by the combination of smart card data with other data sources,
such as a street map and timetable. The smart card data represent a large
volume of revealed preference data that allows travellers' behaviour to be
modelled with higher accuracy than by using traditional survey data. A
multinomial route choice model is proposed and estimated by the maximum
likelihood method, using urban public transport in Žilina, the
Slovak Republic, as a case study
Journal: Transportation Planning and Technology
Pages: 638-648
Issue: 7
Volume: 37
Year: 2014
Month: 10
X-DOI: 10.1080/03081060.2014.935570
File-URL: http://hdl.handle.net/10.1080/03081060.2014.935570
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Handle: RePEc:taf:transp:v:37:y:2014:i:7:p:638-648
Template-Type: ReDIF-Article 1.0
Author-Name: Shahram Bohluli
Author-X-Name-First: Shahram
Author-X-Name-Last: Bohluli
Author-Name: Siamak Ardekani
Author-X-Name-First: Siamak
Author-X-Name-Last: Ardekani
Author-Name: Farzad Daneshgar
Author-X-Name-First: Farzad
Author-X-Name-Last: Daneshgar
Title: Development and validation of a direct mode choice model
Abstract:
A direct discrete mode choice model is
introduced using relative attributes of competing modes as well as
socioeconomic characteristics of travelers. The model is calibrated and
validated for two available historic databases in the Dallas-Fort Worth
region. The validation is conducted against the outputs of a current
nested logit model used by the regional planning organization as well as
the observed values based on transit ridership surveys for a newly
inaugurated commuter rail service. The calibrated model is applied after
the introduction of this new transit mode. The results show that the
estimated mode shares by the proposed model have a statistically better
consistency with the observed values than the estimates of the
conventional nested logit model. Unlike the logit model, the structure of
the direct model based on relative attributes also has the advantage of
not needing recalibration each time a new travel mode is introduced. The
model is found to be easier to calibrate and produces more accurate
results than the nested logit model, commonly used by many metropolitan
planning organizations.
Journal: Transportation Planning and Technology
Pages: 649-662
Issue: 7
Volume: 37
Year: 2014
Month: 10
X-DOI: 10.1080/03081060.2014.935571
File-URL: http://hdl.handle.net/10.1080/03081060.2014.935571
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Handle: RePEc:taf:transp:v:37:y:2014:i:7:p:649-662
Template-Type: ReDIF-Article 1.0
Author-Name: Louis de Grange
Author-X-Name-First: Louis
Author-X-Name-Last: de Grange
Author-Name: Juan Carlos Muñoz
Author-X-Name-First: Juan Carlos
Author-X-Name-Last: Muñoz
Author-Name: Rodrigo Troncoso
Author-X-Name-First: Rodrigo
Author-X-Name-Last: Troncoso
Title: A microeconomic interpretation for the system optimal traffic assignment problem with nonadditive path cost
Abstract:
Using a Bergson-Samuelson welfare function, we outline a microeconomic
interpretation of the effects of the non-linearity in the time/cost
relationship for travellers in a congested transport network. It is
demonstrated that a marginal cost traffic flow assignment following
Wardrop's second principle, although it minimizes the total cost of a
transport network, may reduce social welfare compared to the market
equilibrium assignment based on Wardrop's first principle. A
welfare-maximizing assignment model is presented and used to show that if
the travellers' utility functions are linear, the assignment that
maximizes social welfare will be the same as the assignment that minimizes
total network cost, but if users' utility functions are non-linear
(reflecting the traditional non-satiation and diminishing marginal utility
axioms), the two assignments will be different. It is further shown that
the effects of this non-linearity are such that a welfare-maximizing
assignment will meet with less user resistance than a minimum total
network cost assignment.
Journal: Transportation Planning and Technology
Pages: 663-677
Issue: 8
Volume: 37
Year: 2014
Month: 12
X-DOI: 10.1080/03081060.2014.959351
File-URL: http://hdl.handle.net/10.1080/03081060.2014.959351
File-Format: text/html
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Handle: RePEc:taf:transp:v:37:y:2014:i:8:p:663-677
Template-Type: ReDIF-Article 1.0
Author-Name: Lasse Makkonen
Author-X-Name-First: Lasse
Author-X-Name-Last: Makkonen
Author-Name: Jussi Ylhäisi
Author-X-Name-First: Jussi
Author-X-Name-Last: Ylhäisi
Author-Name: Jouko Törnqvist
Author-X-Name-First: Jouko
Author-X-Name-Last: Törnqvist
Author-Name: Andrew Dawson
Author-X-Name-First: Andrew
Author-X-Name-Last: Dawson
Author-Name: Jouni Räisänen
Author-X-Name-First: Jouni
Author-X-Name-Last: Räisänen
Title: Climate change projections for variables affecting road networks in Europe
Abstract:
Global climate change will affect road networks during this century. The
effects will be different in various parts of the world due to differences
in local climate change and in the structure and properties of roads. In
this paper, climate change projections are presented for climate variables
that are most likely to affect the long-term performance of road networks
in Europe. We apply four regional climate simulations up to the year 2100
using two plausible future emission scenarios. The results show that the
changing climate will require significant adaptation measures in the near
future in order to maintain the operability of the European road network.
Journal: Transportation Planning and Technology
Pages: 678-694
Issue: 8
Volume: 37
Year: 2014
Month: 12
X-DOI: 10.1080/03081060.2014.959352
File-URL: http://hdl.handle.net/10.1080/03081060.2014.959352
File-Format: text/html
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Handle: RePEc:taf:transp:v:37:y:2014:i:8:p:678-694
Template-Type: ReDIF-Article 1.0
Author-Name: Laura Eboli
Author-X-Name-First: Laura
Author-X-Name-Last: Eboli
Author-Name: Gabriella Mazzulla
Author-X-Name-First: Gabriella
Author-X-Name-Last: Mazzulla
Title: Investigating the heterogeneity of bus users' preferences through discrete choice modelling
Abstract:
In this paper we investigate differences in bus passengers' perceptions
about transit service quality through the calibration of different
discrete choice logit models (multinomial, mixed and latent class models)
in which users' heterogeneity is introduced. The application of these
different approaches to the same experimental context is proposed,
highlighting the findings emerging from the analysis. The importance of
investigating passengers' perceptions can help transit operators and
transportation planners prepare better investment plans; therefore, to
adopt tools able to take into account the heterogeneity among users is
very important for obtaining as reliable as possible service quality
measures. We find that there are observed and unobserved groups of users
who perceive service quality differently, and that there is heterogeneity
among users in perceiving certain bus service characteristics.
Journal: Transportation Planning and Technology
Pages: 695-710
Issue: 8
Volume: 37
Year: 2014
Month: 12
X-DOI: 10.1080/03081060.2014.959353
File-URL: http://hdl.handle.net/10.1080/03081060.2014.959353
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Handle: RePEc:taf:transp:v:37:y:2014:i:8:p:695-710
Template-Type: ReDIF-Article 1.0
Author-Name: Raj Bridgelall
Author-X-Name-First: Raj
Author-X-Name-Last: Bridgelall
Title: Campus parking supply impacts on transportation mode choice
Abstract:
Parking demand is a significant land-use problem in campus planning. The
parking policies of universities and large corporations with facilities
located in small urban areas shape the character of their campuses. These
facilities will benefit from a simplified methodology to study the effects
of parking availability on transportation mode mix and impacts on
recruitment and staffing policies. This paper, based on a case study of
North Dakota State University in the United States, introduces an
analytical framework to provide planners with insights about how parking
supply and demand affects campus transportation mode choice. The
methodology relies only on aggregate mode choice data for the special
generator zone and the average aggregate volume/capacity ratio projections
for all external routes that access the zone. This reduced data
requirement significantly lowers analysis cost and obviates the need for
specialized modelling software and spatial network analysis tools. Results
illustrate that the framework is effective for analysing mode choice
changes under different scenarios of parking supply and population growth.
Journal: Transportation Planning and Technology
Pages: 711-737
Issue: 8
Volume: 37
Year: 2014
Month: 12
X-DOI: 10.1080/03081060.2014.959354
File-URL: http://hdl.handle.net/10.1080/03081060.2014.959354
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Handle: RePEc:taf:transp:v:37:y:2014:i:8:p:711-737
Template-Type: ReDIF-Article 1.0
Author-Name: Feng Guo
Author-X-Name-First: Feng
Author-X-Name-Last: Guo
Author-Name: Lisa Aultman-Hall
Author-X-Name-First: Lisa
Author-X-Name-Last: Aultman-Hall
Title: A zone design methodology for national freight origin-destination data and transportation modeling
Abstract:
The zone system used for freight data collection and the geographic
resolution of published data has a significant impact on analysis and
planning. The majority of existing freight model zones are created in an
ad hoc way. In this paper, a new model-based design method is introduced
to develop freight zones for the continental USA. It focuses on two
methodology issues: (1) the criteria that represent the desired properties
of a zone system and (2) the constraints that govern the shape, size, and
continuity of zones. The method is applied to the continental USA by
optimizing an interzonal travel distance weighted by freight flows using
county-level freight data. Several optimal national-level freight zone
systems with different numbers of zones are developed. The results
indicate that a 300-zone system provides a balance between the number of
zones and optimization measures where the currently available public
freight data are provided with approximately 100 zones.
Journal: Transportation Planning and Technology
Pages: 738-756
Issue: 8
Volume: 37
Year: 2014
Month: 12
X-DOI: 10.1080/03081060.2014.959355
File-URL: http://hdl.handle.net/10.1080/03081060.2014.959355
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Handle: RePEc:taf:transp:v:37:y:2014:i:8:p:738-756
Template-Type: ReDIF-Article 1.0
Author-Name: Thomas Vanoutrive
Author-X-Name-First: Thomas
Author-X-Name-Last: Vanoutrive
Title: Workplace travel plans: can they be evaluated effectively by experts?
Abstract:
Employers are regularly involved in transport planning and characteristic
workplace-oriented tools include: (1) travel plans for building projects,
(2) mandatory travel plans, (3) subsidies to employers with an advanced
travel plan and (4) best travel plan awards. In all cases, experts judge
the level of car use. We argue that decision-makers might benefit from a
multiple regression-based benchmark modelling tool that estimates the
expected share of the car. In this paper, we estimate the share of car
users in the commuting modal split at workplaces. However, since the
amount of information available to experts differs, we gradually add
information to the model to measure the impact of data availability.
Without historic data on modal split, the current share can only be
predicted moderately well, i.e. within a 20% range. Besides adding the
past, results improve by using homogenous and regional subsamples.
Nevertheless, quantitative analyses do not make expert knowledge obsolete.
Journal: Transportation Planning and Technology
Pages: 757-774
Issue: 8
Volume: 37
Year: 2014
Month: 12
X-DOI: 10.1080/03081060.2014.959356
File-URL: http://hdl.handle.net/10.1080/03081060.2014.959356
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Handle: RePEc:taf:transp:v:37:y:2014:i:8:p:757-774
Template-Type: ReDIF-Article 1.0
Author-Name: Stephen Ison
Author-X-Name-First: Stephen
Author-X-Name-Last: Ison
Author-Name: Neil Thorpe
Author-X-Name-First: Neil
Author-X-Name-Last: Thorpe
Title: Universities' Transport Study Group UK Annual Conference 2014
Journal: Transportation Planning and Technology
Pages: 1-2
Issue: 1
Volume: 38
Year: 2015
Month: 2
X-DOI: 10.1080/03081060.2014.986257
File-URL: http://hdl.handle.net/10.1080/03081060.2014.986257
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Handle: RePEc:taf:transp:v:38:y:2015:i:1:p:1-2
Template-Type: ReDIF-Article 1.0
Author-Name: Nicholas B. Taylor
Author-X-Name-First: Nicholas B.
Author-X-Name-Last: Taylor
Author-Name: Benjamin G. Heydecker
Author-X-Name-First: Benjamin G.
Author-X-Name-Last: Heydecker
Title: Estimating probability distributions of dynamic queues
Abstract:
Queues are often associated with uncertainty or unreliability, which can
arise from chance or climatic events, phase changes in system behaviour,
or inherent randomness. Knowing the probability distribution of the number
of customers in a queue is important for estimating the risk of stress or
disruption to routine services and upstream blocking, potentially leading
to exceeding critical limits, gridlock or incidents. The present paper
focuses on time-varying queues produced by transient oversaturation during
demand peaks where there is randomness in arrivals and service. The
objective is to present practical methods for estimating a probability
distribution from knowledge of the mean, variance and utilisation (degree
of saturation) of a queue available from computationally efficient, if
approximate, time-dependent calculation. This is made possible by a novel
expression for time-dependent queue variance. The queue processes
considered are those commonly used to represent isolated priority (M/M/1)
and signal-like (M/D/1) systems, plus some statistical variations within
the common Pollaczek-Khinchin framework. Results are verified by
comparison with Markov simulation based on recurrence relations.
Journal: Transportation Planning and Technology
Pages: 3-27
Issue: 1
Volume: 38
Year: 2015
Month: 2
X-DOI: 10.1080/03081060.2014.976987
File-URL: http://hdl.handle.net/10.1080/03081060.2014.976987
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Handle: RePEc:taf:transp:v:38:y:2015:i:1:p:3-27
Template-Type: ReDIF-Article 1.0
Author-Name: Xucheng Li
Author-X-Name-First: Xucheng
Author-X-Name-Last: Li
Author-Name: John Preston
Author-X-Name-First: John
Author-X-Name-Last: Preston
Title: Assessing the financial and social costs of public transport in differing operating environments and with endogenous demand
Abstract:
This paper uses a previously developed spreadsheet cost model which
simulates public transport modes operated on a 12-km route to analyse the
total costs of different passenger demand levels. The previous cost model
was a very powerful tool to estimate the social and operator costs for
different public transport technologies. However, as the model is
strategic, some basic assumptions were made which are relaxed in this
paper. First, the speed-flow equation in the original spreadsheet model
assumes that speed decreases according to the ratio of the current
frequency and the lane capacity which is based on the safety headway
without taking into account passenger boardings. However, this may vary in
different operating environments. Therefore, the speed-flow equation is
improved by moving from a linear equation to a piecewise equation that
considers the features of different operating environments. Second, the
model assumes that supply is sufficient to meet demand. However, when the
level of demand is high for the lower-capacity public transport
technologies, passengers may find the incoming vehicle full and therefore,
they have to wait more than one service interval. This paper applies
queuing theory to investigate the probability of having to wait longer
than the expected service headways which will affect the average passenger
waiting time. The extra waiting time for each passenger is calculated and
applied in the spreadsheet cost model. Third, the original model assumed
that demand was externally fixed (exogenous). To evaluate the differences
after applying these equations, endogenous demand rather than exogenous
demand will be investigated by using the elasticities for passenger
waiting time and journey time.
Journal: Transportation Planning and Technology
Pages: 28-43
Issue: 1
Volume: 38
Year: 2015
Month: 2
X-DOI: 10.1080/03081060.2014.976981
File-URL: http://hdl.handle.net/10.1080/03081060.2014.976981
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Handle: RePEc:taf:transp:v:38:y:2015:i:1:p:28-43
Template-Type: ReDIF-Article 1.0
Author-Name: Charles Musselwhite
Author-X-Name-First: Charles
Author-X-Name-Last: Musselwhite
Title: Environment-person interactions enabling walking in later life
Abstract:
Traditionally, theory suggests the ageing individual is strongly
influenced by the environment and has difficulties in overcoming distance
and space. Recently, however, theory has moved to suggest that older
people possess greater agency, being more capable of selecting and
mastering their environments and spaces according to their needs and
preferences. This paper suggests that both opposing theories are correct
for differing groups. Observations and surveys of older people
(n = 365) in public space examined how far
person-environment agency is present in active use of outdoor space,
measured by confidence to use and explore space, in three locations (urban
shopping centres, suburban residential area and an area of shared space).
In all three areas, dominance of the space was associated with being male
and having higher levels of reported health, confidence and higher
socio-economic status. Only 11% of participants walked at least as fast as
the UK department for transport guidance on crossing speeds.
Journal: Transportation Planning and Technology
Pages: 44-61
Issue: 1
Volume: 38
Year: 2015
Month: 2
X-DOI: 10.1080/03081060.2014.976983
File-URL: http://hdl.handle.net/10.1080/03081060.2014.976983
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Handle: RePEc:taf:transp:v:38:y:2015:i:1:p:44-61
Template-Type: ReDIF-Article 1.0
Author-Name: Jonathan Burchell
Author-X-Name-First: Jonathan
Author-X-Name-Last: Burchell
Author-Name: Stephen Ison
Author-X-Name-First: Stephen
Author-X-Name-Last: Ison
Author-Name: Marcus Enoch
Author-X-Name-First: Marcus
Author-X-Name-Last: Enoch
Title: The Smeed Report 50 years on: a role for the workplace parking levy?
Abstract:
Fifty years ago, Reuben Smeed chaired a study and produced a Report on the
Economic and Technical Possibilities of Road Pricing. This report was to
consider different methods of charging, including road pricing, to see if
different pricing methods could reduce the problems associated with
congestion as opposed to the traditional methods in place such as fuel
tax. Since that time, various attempts have been made to introduce road
pricing schemes but with only modest success so far. By contrast parking
policies, a second-best alternative to road pricing, have been extensively
used by local authorities as a means of managing congestion. The
effectiveness of such policies, however, has been limited by an increase
in the proportion of privately owned non-residential parking which is not
under the control of local authorities. The aim of this paper is to
present the results of an early-stage, post-implementation study of the
Nottingham Workplace Parking Levy (WPL) - a measure that charges employers
for the number of parking spaces they provide for their staff. Particular
emphasis is placed on why a WPL was seen as being favourable compared to a
road pricing alternative. The reason for this was that it could be
introduced in a shorter time frame and at a lower cost, thus making it a
lower risk option when compared with road pricing.
Journal: Transportation Planning and Technology
Pages: 62-77
Issue: 1
Volume: 38
Year: 2015
Month: 2
X-DOI: 10.1080/03081060.2014.976986
File-URL: http://hdl.handle.net/10.1080/03081060.2014.976986
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Handle: RePEc:taf:transp:v:38:y:2015:i:1:p:62-77
Template-Type: ReDIF-Article 1.0
Author-Name: J.P. Powell
Author-X-Name-First: J.P.
Author-X-Name-Last: Powell
Author-Name: R. Palacín
Author-X-Name-First: R.
Author-X-Name-Last: Palacín
Title: A comparison of modelled and real-life driving profiles for the simulation of railway vehicle operation
Abstract:
A key factor in determining the performance of a railway system is the
speed profile of the trains within the network. There can be significant
variation in this speed profile for identical trains on identical routes,
depending on how the train is driven. A better understanding and control
of speed profiles can therefore offer significant potential for
improvements in the performance of railway systems. This paper develops a
model to allow the variability of real-life driving profiles of railway
vehicles to be quantitatively described and predicted, in order to better
account for the effects on the speed profile of the train and hence the
performance of the railway network as a whole. The model is validated
against data from the Tyne and Wear Metro, and replicates the measured
data to a good degree of accuracy.
Journal: Transportation Planning and Technology
Pages: 78-93
Issue: 1
Volume: 38
Year: 2015
Month: 2
X-DOI: 10.1080/03081060.2014.976984
File-URL: http://hdl.handle.net/10.1080/03081060.2014.976984
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Handle: RePEc:taf:transp:v:38:y:2015:i:1:p:78-93
Template-Type: ReDIF-Article 1.0
Author-Name: Ying Li
Author-X-Name-First: Ying
Author-X-Name-Last: Li
Author-Name: Andy H.F. Chow
Author-X-Name-First: Andy H.F.
Author-X-Name-Last: Chow
Title: Optimisation of motorway operations via ramp metering and variable speed limits
Abstract:
This paper presents a modelling and optimisation framework for deriving
ramp metering and variable speed control strategies. We formulate the
optimal control problems aiming to minimise the travel delay on motorways
based upon a macroscopic cell transmission model of traffic. The optimal
ramp metering optimisation is formulated as a linear programming (LP)
while the variable speed control problem is formulated as a mixed integer
LP. The optimisation models are applied to a real scenario over a section
of M25 motorway in the UK. This paper also includes various analyses on
the sensitivity of the optimal control solutions with respect to different
network configurations and model assumptions.
Journal: Transportation Planning and Technology
Pages: 94-110
Issue: 1
Volume: 38
Year: 2015
Month: 2
X-DOI: 10.1080/03081060.2014.976982
File-URL: http://hdl.handle.net/10.1080/03081060.2014.976982
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Handle: RePEc:taf:transp:v:38:y:2015:i:1:p:94-110
Template-Type: ReDIF-Article 1.0
Author-Name: James Pritchard
Author-X-Name-First: James
Author-X-Name-Last: Pritchard
Author-Name: John Preston
Author-X-Name-First: John
Author-X-Name-Last: Preston
Author-Name: John Armstrong
Author-X-Name-First: John
Author-X-Name-Last: Armstrong
Title: Making meaningful comparisons between road and rail - substituting average energy consumption data for rail with empirical analysis
Abstract:
Within the transport sector, modal shift towards more efficient and less
polluting modes could be a key policy goal to help meet targets to reduce
energy consumption and carbon emissions. However, making comparisons
between modes is not necessarily straightforward. Average energy and
emissions data are often relied upon, particularly for, rail, which may
not be applicable to a given context. Some UK train operating companies
have recently fitted electricity metres to their trains, from which energy
consumption data have been obtained. This has enabled an understanding to
be gained of how energy consumption and related emissions are affected by
a number of factors, including train and service type. Comparisons are
made with existing data for road and rail. It is noted that although more
specific data can be useful in informing policy and making some decisions,
average data continue to play an important role when considering the
overall picture.
Journal: Transportation Planning and Technology
Pages: 111-130
Issue: 1
Volume: 38
Year: 2015
Month: 2
X-DOI: 10.1080/03081060.2014.976985
File-URL: http://hdl.handle.net/10.1080/03081060.2014.976985
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Handle: RePEc:taf:transp:v:38:y:2015:i:1:p:111-130
Template-Type: ReDIF-Article 1.0
Author-Name: Mark Beecroft
Author-X-Name-First: Mark
Author-X-Name-Last: Beecroft
Author-Name: Kate Pangbourne
Author-X-Name-First: Kate
Author-X-Name-Last: Pangbourne
Title: Future prospects for personal security in travel by public transport
Abstract:
This paper reports findings from a project focused on understanding the
interaction between transport technologies and user needs and perceptions
in supporting personal security in travel by public transport. The
research engaged over 60 experts from across the UK transport sector in a
combination of interviews, workshops and scenario planning activities to
address a set of four application areas in relation to secure travel.
These areas were information provision, travel disruption, automated
transport services and flexible transport services. Four future scenario
narratives (to a 2040 time horizon) were developed for each application
area. A final workshop consolidated and reviewed the narrative scenarios
and pulled out key themes and priority issues for policy, practice and
research for the near term. Consequently a set of policy recommendations,
operator and business opportunities, knowledge gaps and research
priorities were identified to support and enhance provision for personal
security in travel by public transport.
Journal: Transportation Planning and Technology
Pages: 131-148
Issue: 1
Volume: 38
Year: 2015
Month: 2
X-DOI: 10.1080/03081060.2014.976980
File-URL: http://hdl.handle.net/10.1080/03081060.2014.976980
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Handle: RePEc:taf:transp:v:38:y:2015:i:1:p:131-148
Template-Type: ReDIF-Article 1.0
Author-Name: Alexander Y. Bigazzi
Author-X-Name-First: Alexander Y.
Author-X-Name-Last: Bigazzi
Author-Name: Kelly J. Clifton
Author-X-Name-First: Kelly J.
Author-X-Name-Last: Clifton
Title: Modeling the effects of congestion on fuel economy for advanced power train vehicles
Abstract:
Fuel-speed curves (FSC) are used to account for the aggregate effects of
congestion on fuel consumption in transportation scenario analysis. This
paper presents plausible FSC for conventional internal combustion engine
(ICE) vehicles and for advanced vehicles such as hybrid electric vehicles,
fully electric vehicles (EVs), and fuel cell vehicles (FCVs) using a fuel
consumption model with transient driving schedules and a set of 145
hypothetical vehicles. The FSC shapes show that advanced power train
vehicles are expected to maintain fuel economy (FE) in congestion better
than ICE vehicles, and FE can even improve for EV and FCV in freeway
congestion. In order to implement these FSC for long-range scenario
modeling, a bounded approach is presented which uses a single congestion
sensitivity parameter. The results in this paper will assist analysis of
the roles that vehicle technology and congestion mitigation can play in
reducing fuel consumption and greenhouse gas emissions from motor
vehicles.
Journal: Transportation Planning and Technology
Pages: 149-161
Issue: 2
Volume: 38
Year: 2015
Month: 3
X-DOI: 10.1080/03081060.2014.997449
File-URL: http://hdl.handle.net/10.1080/03081060.2014.997449
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Handle: RePEc:taf:transp:v:38:y:2015:i:2:p:149-161
Template-Type: ReDIF-Article 1.0
Author-Name: Miloš Nikolić
Author-X-Name-First: Miloš
Author-X-Name-Last: Nikolić
Author-Name: Dušan Teodorović
Author-X-Name-First: Dušan
Author-X-Name-Last: Teodorović
Author-Name: Katarina Vukadinović
Author-X-Name-First: Katarina
Author-X-Name-Last: Vukadinović
Title: Disruption management in public transit: the bee colony optimization approach
Abstract:
Disruptions in carrying out planned bus schedules occur daily in many
public transit companies. Disturbances are often so large that it is
necessary to perform re-planning of planned bus and crew activities.
Dispatchers in charge of traffic operations must frequently find an answer
to the following question in a very short period of time: How should
available buses be distributed among bus routes in order to minimize total
passengers' waiting time on the network? We propose a model for assigning
buses to scheduled routes when there is a shortage of buses. The proposed
model is based on the bee colony optimization (BCO) technique. It is a
biologically inspired method that explores collective intelligence applied
by honey bees during the nectar collecting process. It has been shown that
this developed BCO approach can generate high-quality solutions within
negligible processing times.
Journal: Transportation Planning and Technology
Pages: 162-180
Issue: 2
Volume: 38
Year: 2015
Month: 3
X-DOI: 10.1080/03081060.2014.997447
File-URL: http://hdl.handle.net/10.1080/03081060.2014.997447
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Handle: RePEc:taf:transp:v:38:y:2015:i:2:p:162-180
Template-Type: ReDIF-Article 1.0
Author-Name: Ioannis Tsapakis
Author-X-Name-First: Ioannis
Author-X-Name-Last: Tsapakis
Author-Name: William H. Schneider IV
Author-X-Name-First: William H.
Author-X-Name-Last: Schneider IV
Title: Determining the optimal number of seasonal adjustment factor groupings when estimating annual average daily traffic and investigating their characteristics
Abstract:
Although cluster analysis is recommended by the US Traffic Monitoring
Guide (TMG) to supplement the development of seasonal adjustment factor
groupings (SAFGs), the relationships among SAFGs' characteristics remain
undiscovered, while the determination of the optimal number of clusters is
an ambiguous task exposed to great subjectivity. Statistical indicators
provide a mathematical solution by removing engineering judgment without
taking into consideration any guidelines or other criteria, necessary for
transportation planners to generate 'practical and sensible' groupings.
The method examined in this study aims to overcome the above weaknesses
incorporating into the methodology a series of statistics,
recommendations, and previous research findings. The investigation of the
relationships among (1) the within-group variation, (2) the total number
of sites, (3) the minimum number of stations within a cluster, (4) the
optimal number of clusters, and (5) the geographical size of the groups
constitutes the main objectives of this research. According to the
results, the cluster variability declines as the available number of
stations increases. When the minimum number of stations within a cluster
increases, the weighted coefficient of variation inflates as well, with
the rate of increase depending on sample size. The average number of
automatic traffic recorders per cluster is analogous to the sample size,
while the optimal number of clusters varies conversely with the minimum
number of stations within a cluster. The application developed for the
conduct of the analysis minimizes the computational time needed, while it
can be easily implemented by engineers to automate the process recommended
by the TMG, enhancing the current state of practice.
Journal: Transportation Planning and Technology
Pages: 181-199
Issue: 2
Volume: 38
Year: 2015
Month: 3
X-DOI: 10.1080/03081060.2014.997448
File-URL: http://hdl.handle.net/10.1080/03081060.2014.997448
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Handle: RePEc:taf:transp:v:38:y:2015:i:2:p:181-199
Template-Type: ReDIF-Article 1.0
Author-Name: Mohd Rapik Saat
Author-X-Name-First: Mohd Rapik
Author-X-Name-Last: Saat
Author-Name: Jesus Aguilar Serrano
Author-X-Name-First: Jesus
Author-X-Name-Last: Aguilar Serrano
Title: Multicriteria high-speed rail route selection: application to Malaysia's high-speed rail corridor prioritization
Abstract:
This paper reviews the literature on multicriteria decision analysis in
transportation and provides a case study of high-speed rail (HSR)
corridor/route selection using multicriteria methods in the context of HSR
corridor prioritization in Malaysia. Using the screening method proposed
by Hagler and Todorovich and the ELECTRE I multicriteria method, it is
found that the southbound corridor from Kuala Lumpur to Singapore has the
highest priority, followed by the eastbound corridor to Kuantan, and
northbound to Georgetown. HSR trains could potentially reduce the trip
times to Singapore, Kuantan, and Georgetown from Kuala Lumpur, as compared
to driving, by 65-73%. The results of this study can be used to assist in
the planning of HSR and/or integrated transportation systems in Malaysia.
The same methods can be used to evaluate potential HSR corridors/routes in
other countries or regions.
Journal: Transportation Planning and Technology
Pages: 200-213
Issue: 2
Volume: 38
Year: 2015
Month: 3
X-DOI: 10.1080/03081060.2014.997446
File-URL: http://hdl.handle.net/10.1080/03081060.2014.997446
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Handle: RePEc:taf:transp:v:38:y:2015:i:2:p:200-213
Template-Type: ReDIF-Article 1.0
Author-Name: Chaug-Ing Hsu
Author-X-Name-First: Chaug-Ing
Author-X-Name-Last: Hsu
Author-Name: Ching-Cheng Chao
Author-X-Name-First: Ching-Cheng
Author-X-Name-Last: Chao
Author-Name: Nai-Wen Hsu
Author-X-Name-First: Nai-Wen
Author-X-Name-Last: Hsu
Title: Control strategies for departure process delays at airport passenger terminals
Abstract:
This paper explores the characteristics of process delays at airport
passenger terminals and establishes a queuing model for both passengers
and baggage served by different connecting type facilities. The impact of
delay propagation on other processes and flights is investigated using an
analytical approach. In addition, the extra costs incurred on passengers,
process operators, and airlines are examined using the delay cost
functions. To reduce the impact of process delays, various
delay-controlled strategies are proposed, such as setting scheduled times
for completion of a process, increasing the number of service counters,
and priority service for emergent flights. Taoyuan International Airport
in Taiwan is used as a case study when facing special events. Results
showed that the model can effectively and efficiently estimate delay
propagation and its costs. In addition, processes that are not consecutive
allow more buffer time between different operations, which helps ease
propagation of delays caused by previous services.
Journal: Transportation Planning and Technology
Pages: 214-237
Issue: 2
Volume: 38
Year: 2015
Month: 3
X-DOI: 10.1080/03081060.2014.959358
File-URL: http://hdl.handle.net/10.1080/03081060.2014.959358
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Handle: RePEc:taf:transp:v:38:y:2015:i:2:p:214-237
Template-Type: ReDIF-Article 1.0
Author-Name: B.R. Ke
Author-X-Name-First: B.R.
Author-X-Name-Last: Ke
Author-Name: C.L. Lin
Author-X-Name-First: C.L.
Author-X-Name-Last: Lin
Author-Name: H.H. Chien
Author-X-Name-First: H.H.
Author-X-Name-Last: Chien
Author-Name: H.W. Chiu
Author-X-Name-First: H.W.
Author-X-Name-Last: Chiu
Author-Name: N. Chen
Author-X-Name-First: N.
Author-X-Name-Last: Chen
Title: A new approach for improving the performance of freight train timetabling of a single-track railway system
Abstract:
A new approach for improving the performance of freight train timetabling
for single-track railways is proposed. Using the idea of a fixed-block
signaling system, we develop a matrix representation to express the
occupation of inter- and intra-station tracks by trains illustrating the
train blocking time diagram in its entirety. Train departure times, dwell
times, and unnecessary stopping are adjusted to reduce average train
travel time and single train travel time. Conflicts between successive
stations and within stations are identified and solved. A fuzzy logic
system is further used to adjust the range of train departure times and
checks are made to determine whether dwell times and time intervals can be
adjusted for passenger and freight trains at congested stations to
minimize train waiting times. By combining manual scheduling expertise
with the fuzzy inference method, timetable efficiency is significantly
improved and becomes more flexible.
Journal: Transportation Planning and Technology
Pages: 238-264
Issue: 2
Volume: 38
Year: 2015
Month: 3
X-DOI: 10.1080/03081060.2014.959357
File-URL: http://hdl.handle.net/10.1080/03081060.2014.959357
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Handle: RePEc:taf:transp:v:38:y:2015:i:2:p:238-264
Template-Type: ReDIF-Article 1.0
Author-Name: Ahmed Osman Idris
Author-X-Name-First: Ahmed
Author-X-Name-Last: Osman Idris
Author-Name: Khandker M. Nurul Habib
Author-X-Name-First: Khandker M. Nurul
Author-X-Name-Last: Habib
Author-Name: Alejandro Tudela
Author-X-Name-First: Alejandro
Author-X-Name-Last: Tudela
Author-Name: Amer Shalaby
Author-X-Name-First: Amer
Author-X-Name-Last: Shalaby
Title: Investigating the effects of psychological factors on commuting mode choice behaviour
Abstract:
This paper utilizes socio-psychometric survey data to investigate the
influence of attitudes, affective appraisal and habit formation on
commuting mode choice. The data-set was collected in 2009-2010 in
Edmonton, Alberta. In addition to conventional socio-economic, demographic
and modal attributes, the survey gathered psychological information
regarding habitual behaviour, affective appraisal and personal attitudes.
Different psychometric tools were used to capture psychological factors
affecting mode choice. Habitual behaviour was measured using Verplanken's
response-frequency questionnaire. Affective appraisal was indirectly
estimated using the Osgood's semantic differential. Five-point Likert
scales were used to measure attitude. The structural equation modelling
(SEM) approach was used to investigate the effects of psychological
factors on mode choice behaviour. SEM captures the latent nature of
psychological factors and uses path diagrams to identify the
directionality as well as intensity of the relationships. The
investigation reveals that passengers have positive emotions towards their
chosen mode. Further, evidence of the superiority of the car as a travel
alternative was established in terms of strong habit towards it, such that
passengers would use the car for almost every single trip.
Journal: Transportation Planning and Technology
Pages: 265-276
Issue: 3
Volume: 38
Year: 2015
Month: 4
X-DOI: 10.1080/03081060.2014.997451
File-URL: http://hdl.handle.net/10.1080/03081060.2014.997451
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Handle: RePEc:taf:transp:v:38:y:2015:i:3:p:265-276
Template-Type: ReDIF-Article 1.0
Author-Name: Reza Taromi
Author-X-Name-First: Reza
Author-X-Name-Last: Taromi
Author-Name: Michael DuRoss
Author-X-Name-First: Michael
Author-X-Name-Last: DuRoss
Author-Name: Bintong Chen
Author-X-Name-First: Bintong
Author-X-Name-Last: Chen
Author-Name: Ardeshir Faghri
Author-X-Name-First: Ardeshir
Author-X-Name-Last: Faghri
Author-Name: Mingxin Li
Author-X-Name-First: Mingxin
Author-X-Name-Last: Li
Author-Name: Tracy DeLiberty
Author-X-Name-First: Tracy
Author-X-Name-Last: DeLiberty
Title: A multiobjective land development optimization model: the case of New Castle County, Delaware
Abstract:
This paper develops a multiobjective optimization model to consider
transportation impacts of the future development of land. The output of
the model is the best location and type of land use that has minimal
negative transportation effects and uses the maximum available public
transportation infrastructure. It provides tools for both planners and
transportation engineers and enables them to consider different scenarios
of possible policies and land development. Since multiple objectives and
their nonlinear structures are considered, the model is solved using mixed
integer nonlinear programming. The final results are shown in both tabular
and graphical format. The effectiveness of the model is applied to the
northern part of New Castle County, Delaware. The results show that the
model successfully finds the best locations for both residential and
commercial land uses in order to meet several criteria discussed in the
paper.
Journal: Transportation Planning and Technology
Pages: 277-304
Issue: 3
Volume: 38
Year: 2015
Month: 4
X-DOI: 10.1080/03081060.2014.997450
File-URL: http://hdl.handle.net/10.1080/03081060.2014.997450
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Handle: RePEc:taf:transp:v:38:y:2015:i:3:p:277-304
Template-Type: ReDIF-Article 1.0
Author-Name: Carlos P. Barros
Author-X-Name-First: Carlos P.
Author-X-Name-Last: Barros
Author-Name: Luis A. Gil-Alana
Author-X-Name-First: Luis A.
Author-X-Name-Last: Gil-Alana
Author-Name: Peter Wanke
Author-X-Name-First: Peter
Author-X-Name-Last: Wanke
Title: An empirical analysis of freight transport traffic modes in Brazil, 1996-2012
Abstract:
This paper analyses the performance of freight transportation modes in
Brazil - namely air, water, rail and road - from February 1996 to August
2012 by investigating their long memory properties using fractional
integration and autoregressive models on monthly tonnage data. Two
important features are analysed: the degree of dependence of
transportation traffic across time and its seasonal structure over the
period. Furthermore, the stability of parameters across the sample period
is investigated, incorporating potential structural breaks in the data,
which describe discontinuity in freight transportation traffic. Some
policy implications are derived.
Journal: Transportation Planning and Technology
Pages: 305-319
Issue: 3
Volume: 38
Year: 2015
Month: 4
X-DOI: 10.1080/03081060.2014.997452
File-URL: http://hdl.handle.net/10.1080/03081060.2014.997452
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Handle: RePEc:taf:transp:v:38:y:2015:i:3:p:305-319
Template-Type: ReDIF-Article 1.0
Author-Name: Avishai (Avi) Ceder
Author-X-Name-First: Avishai (Avi)
Author-X-Name-Last: Ceder
Author-Name: Yuval Hadas
Author-X-Name-First: Yuval
Author-X-Name-Last: Hadas
Author-Name: Nigel K.L. Wan
Author-X-Name-First: Nigel K.L.
Author-X-Name-Last: Wan
Author-Name: Dumindu Sundarapperuma
Author-X-Name-First: Dumindu
Author-X-Name-Last: Sundarapperuma
Title: The planning and analysis of a new group rapid transit system: the SkyCabs monobeam system in Auckland
Abstract:
This paper examines a case study of the SkyCabs system as a way to
alleviate some of the traffic problems of Auckland, New Zealand. SkyCabs
is an elevated two-way monobeam carrying light eight-seater cabs on tracks
on each side of the beam, available on demand, providing fast,
pollution-free, unimpeded travel above the footpath with panoramic views
of the city. The aim of this study is to investigate the attractiveness of
implementing the SkyCabs system to and from Auckland central business
district (CBD) and Auckland international airport by examining four
variables: different routes, different number of stops/stations, different
passenger demand levels, and different number of cabs in the system. The
analysis utilizes geographical information system and simulation tools for
the various scenarios considered. The results show that it is possible to
assess the cost-benefit of alternative routes in terms of those four
variables and rate of return on investment.
Journal: Transportation Planning and Technology
Pages: 320-334
Issue: 3
Volume: 38
Year: 2015
Month: 4
X-DOI: 10.1080/03081060.2014.997453
File-URL: http://hdl.handle.net/10.1080/03081060.2014.997453
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Handle: RePEc:taf:transp:v:38:y:2015:i:3:p:320-334
Template-Type: ReDIF-Article 1.0
Author-Name: Maarten Messagie
Author-X-Name-First: Maarten
Author-X-Name-Last: Messagie
Author-Name: Nele Sergeant
Author-X-Name-First: Nele
Author-X-Name-Last: Sergeant
Author-Name: Surendraprabu Rangaraju
Author-X-Name-First: Surendraprabu
Author-X-Name-Last: Rangaraju
Author-Name: Javier San Felix Forner
Author-X-Name-First: Javier
Author-X-Name-Last: San Felix Forner
Author-Name: Luis Oliveira
Author-X-Name-First: Luis
Author-X-Name-Last: Oliveira
Author-Name: Thierry Coosemans
Author-X-Name-First: Thierry
Author-X-Name-Last: Coosemans
Author-Name: Cathy Macharis
Author-X-Name-First: Cathy
Author-X-Name-Last: Macharis
Author-Name: Joeri Van Mierlo
Author-X-Name-First: Joeri
Author-X-Name-Last: Van Mierlo
Title: A valuation of the environmental performance of vehicles: an analysis and comparison of two methodologies
Abstract:
The European Clean Vehicle Directive was introduced in 2009 to create an
obligation on public authorities to take into account the impact of energy
consumption, carbon dioxide (CO2) emissions and pollutant
emissions into their purchasing decisions for road transport vehicles.
This should stimulate the market for clean and energy-efficient vehicles
and improve transport's impact on environment, climate change and energy
use. Therefore the so-called 'Operational Lifetime Cost' of a vehicle is
calculated, divided into the cost for energy consumption, CO2
and pollutant (nitrous oxide, particulate matter, non-methane
hydrocarbons) emissions. In Belgium, a different methodology has been
developed to calculate the environmental impact of a vehicle, called
'Ecoscore', based on a well-to-wheel approach. More pollutants are
included compared to the Clean Vehicle methodology, but also indirect
emissions are taken into account. In this paper, both methodologies are
compared and used to analyze the environmental performance of passenger
cars with different fuel types and from different vehicle segments.
Similar rankings between both methodologies are obtained; however, the
large impact of energy use (and CO2 emissions) in the Clean
Vehicle methodology disadvantages compressed natural gas cars, as well as
diesel cars equipped with particulate filters, compared to the Ecoscore
methodology.
Journal: Transportation Planning and Technology
Pages: 335-346
Issue: 3
Volume: 38
Year: 2015
Month: 4
X-DOI: 10.1080/03081060.2015.1008797
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1008797
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Handle: RePEc:taf:transp:v:38:y:2015:i:3:p:335-346
Template-Type: ReDIF-Article 1.0
Author-Name: Jason Monios
Author-X-Name-First: Jason
Author-X-Name-Last: Monios
Title: Integrating intermodal transport with logistics: a case study of the UK retail sector
Abstract:
Retail traffic is one of the main drivers for the growth of intermodal
transport services in the UK. This paper examines the key factors
underpinning this modal shift in order to learn lessons for other market
and geographical contexts. Since successful retail intermodal logistics
involves many actors, this paper is based on semi-structured interviews
with major UK retailers, third-party logistics providers (3PLs) and rail
operators, supplemented by document analysis. The qualitative data are
analysed via a conceptual framework derived from the literature. Despite
past successes and the presence of drivers for future growth, the paper
identifies many operational issues without current solutions and the
presence of ongoing public subsidy. The major conclusion is that the
importance of 3PLs, aggregation and multi-user platforms must be
recognised by transport planners in supporting the use of intermodal
transport by retailers and other large shippers.
Journal: Transportation Planning and Technology
Pages: 347-374
Issue: 3
Volume: 38
Year: 2015
Month: 4
X-DOI: 10.1080/03081060.2015.1008798
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1008798
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Handle: RePEc:taf:transp:v:38:y:2015:i:3:p:347-374
Template-Type: ReDIF-Article 1.0
Author-Name: Elvezia M. Cepolina
Author-X-Name-First: Elvezia M.
Author-X-Name-Last: Cepolina
Author-Name: Alessandro Farina
Author-X-Name-First: Alessandro
Author-X-Name-Last: Farina
Author-Name: Catherine Holloway
Author-X-Name-First: Catherine
Author-X-Name-Last: Holloway
Author-Name: Nick Tyler
Author-X-Name-First: Nick
Author-X-Name-Last: Tyler
Title: Innovative strategies for urban car-sharing systems and a simulator to assess their performance
Abstract:
In this paper, three innovative car-sharing systems for urban areas are
proposed, based on fleets of individual intelligent vehicles with three
service characteristics: instant access, open-ended reservations and
one-way trips. These features provide high flexibility but create an
uneven distribution of vehicles among stations. Therefore, relocation of
vehicles must be performed. Three different system procedures are
proposed: in the first system, relocations are performed by users; in the
other two, vehicles relocate automatically, thanks to their automation. In
the first two systems, vehicles are accessible only at stations, whereas
in the third they are also accessible along roads. In order to provide
transport managers with a tool to test systems in different realities, an
object-oriented simulator is developed. The simulation provides outputs of
system performance, in terms of user waiting times and system efficiency.
The proposed systems are simulated for the city of Genoa, in Italy, and a
comparative analysis is presented.
Journal: Transportation Planning and Technology
Pages: 375-391
Issue: 4
Volume: 38
Year: 2015
Month: 6
X-DOI: 10.1080/03081060.2015.1026098
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1026098
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Handle: RePEc:taf:transp:v:38:y:2015:i:4:p:375-391
Template-Type: ReDIF-Article 1.0
Author-Name: Baha' W. Alshalalfah
Author-X-Name-First: Baha' W.
Author-X-Name-Last: Alshalalfah
Author-Name: Amer S. Shalaby
Author-X-Name-First: Amer S.
Author-X-Name-Last: Shalaby
Author-Name: Steven Dale
Author-X-Name-First: Steven
Author-X-Name-Last: Dale
Author-Name: Fadel M.Y. Othman
Author-X-Name-First: Fadel M.Y.
Author-X-Name-Last: Othman
Title: Feasibility study of aerial ropeway transit in the Holy City of Makkah
Abstract:
The planning and implementation of a multimodal transportation system in
the Holy City of Makkah to handle the huge volumes of pilgrims to the City
is not a straightforward mission, as Makkah poses numerous challenges
including its unique seasonal demand patterns, mountainous terrain, and
limited space. Aerial ropeway transit (ART), a promising transport
technology solution, could be an important component of this system. This
paper presents the results of a technical and economic feasibility study
to explore the potential of introducing ART service in Makkah. The study
reveals that, overall, ART service on some corridors in Makkah is
technically feasible, and with some necessary enforcement measures to
attract ridership could become a profitable transportation investment.
Specifically, the study recommends using ART for special user groups and
service/emergency crews during peak seasons and opening ART to the public
as a premium service during the off-peak season.
Journal: Transportation Planning and Technology
Pages: 392-408
Issue: 4
Volume: 38
Year: 2015
Month: 6
X-DOI: 10.1080/03081060.2015.1026099
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1026099
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:4:p:392-408
Template-Type: ReDIF-Article 1.0
Author-Name: Yavuz Y. Ulusoy
Author-X-Name-First: Yavuz Y.
Author-X-Name-Last: Ulusoy
Author-Name: Steven I-Jy Chien
Author-X-Name-First: Steven I-Jy
Author-X-Name-Last: Chien
Title: Optimal bus service patterns and frequencies considering transfer demand elasticity with genetic algorithm
Abstract:
This paper attempts to optimize bus service patterns (i.e., all-stop,
short-turn, and express) and frequencies which minimize total cost,
considering transfer demand elasticity. A mathematical model is developed
based on the objective total cost for a generalized bus route, which is
optimized subject to a set of constraints ensuring sufficient capacity, an
operable bus fleet, and service frequency conservation. To optimize the
integrated service of a bus route with many stops, which is a
combinatorial optimization problem, a genetic algorithm is developed and
applied to search for the solution. A case study, based on a real-world
bus route in New Jersey, is conducted to demonstrate the applicability and
effectiveness of the developed model and the solution algorithm. Results
show that the proposed methodology is fairly efficient, and the optimized
bus service significantly reduces total cost.
Journal: Transportation Planning and Technology
Pages: 409-424
Issue: 4
Volume: 38
Year: 2015
Month: 6
X-DOI: 10.1080/03081060.2015.1026101
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1026101
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:4:p:409-424
Template-Type: ReDIF-Article 1.0
Author-Name: Qiong Bao
Author-X-Name-First: Qiong
Author-X-Name-Last: Bao
Author-Name: Bruno Kochan
Author-X-Name-First: Bruno
Author-X-Name-Last: Kochan
Author-Name: Tom Bellemans
Author-X-Name-First: Tom
Author-X-Name-Last: Bellemans
Author-Name: Davy Janssens
Author-X-Name-First: Davy
Author-X-Name-Last: Janssens
Author-Name: Geert Wets
Author-X-Name-First: Geert
Author-X-Name-Last: Wets
Title: Investigating micro-simulation error in activity-based travel demand forecasting: a case study of the FEATHERS framework
Abstract:
Activity-based models of travel demand have received considerable
attention in transportation planning and forecasting in recent years.
However, in most cases they use a micro-simulation approach, thereby
inevitably including a stochastic error that is caused by the statistical
distributions of random components. As a consequence, running a transport
micro-simulation model several times with the same input will generate
different outputs, which baffles practitioners in applying such a model
and in interpreting the results. A common approach is therefore to run the
model multiple times and to use the average value of the results. The
question then becomes: what is the minimum number of model runs required
to reach a stable result? In this paper, systematic experiments are
carried out using Forecasting Evolutionary Activity-Travel of Households
and their Environmental RepercussionS (FEATHERS), an activity-based
micro-simulation modelling framework currently implemented for the
Flanders region of Belgium. Six levels of geographic detail are taken into
account. Three travel indices - average daily activities per person,
average daily trips per person and average daily distance travelled per
person, as well as their corresponding segmentations - are calculated by
running the model 100 times. The results show that the more disaggregated
the level, the larger the number of model runs is needed to ensure
confidence. Furthermore, based on the time-dependent origin-destination
table derived from the model output, traffic assignment is performed by
loading it onto the Flemish road network, and the total vehicle kilometres
travelled in the whole Flanders are subsequently computed. The stable
results at the Flanders level provides model users with confidence that
application of FEATHERS at an aggregated level requires only limited model
runs.
Journal: Transportation Planning and Technology
Pages: 425-441
Issue: 4
Volume: 38
Year: 2015
Month: 6
X-DOI: 10.1080/03081060.2015.1026102
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1026102
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Handle: RePEc:taf:transp:v:38:y:2015:i:4:p:425-441
Template-Type: ReDIF-Article 1.0
Author-Name: Zheng Chang
Author-X-Name-First: Zheng
Author-X-Name-Last: Chang
Author-Name: Theo Notteboom
Author-X-Name-First: Theo
Author-X-Name-Last: Notteboom
Author-Name: Jing Lu
Author-X-Name-First: Jing
Author-X-Name-Last: Lu
Title: A two-phase model for dry port location with an application to the port of Dalian in China
Abstract:
This paper provides guidance for an optimal and reasonable dry port layout
for the port of Dalian in China. We present a two-phase framework on the
location of dry ports, which solves the selection of candidate inland
cities and optimal dry port location choice, respectively. Fuzzy C-Means
Clustering is applied to select alternative cities in the vast hinterland
of the seaport of Dalian, with a view to identify evaluation factors that
affect the location selection decision. A cost-minimisation linear
programming solution is proposed, with the aid of a genetic algorithm, to
choose the optimal location as well as capacity level among the candidate
inland cities.
Journal: Transportation Planning and Technology
Pages: 442-464
Issue: 4
Volume: 38
Year: 2015
Month: 6
X-DOI: 10.1080/03081060.2015.1026103
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1026103
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Handle: RePEc:taf:transp:v:38:y:2015:i:4:p:442-464
Template-Type: ReDIF-Article 1.0
Author-Name: Le Minh Kieu
Author-X-Name-First: Le Minh
Author-X-Name-Last: Kieu
Author-Name: Ashish Bhaskar
Author-X-Name-First: Ashish
Author-X-Name-Last: Bhaskar
Author-Name: Edward Chung
Author-X-Name-First: Edward
Author-X-Name-Last: Chung
Title: Empirical modelling of the relationship between bus and car speeds on signalised urban networks
Abstract:
Vehicle speed is an important attribute for analysing the utility of a
transport mode. The speed relationship between multiple modes of transport
is of interest to traffic planners and operators. This paper quantifies
the relationship between bus speed and average car speed by integrating
Bluetooth data and transit signal priority data from the urban network in
Brisbane, Australia. The method proposed in this paper is the first of its
kind to relate bus speed and average car speed by integrating multi-source
traffic data in a corridor-based method. Three transferable regression
models relating not-in-service bus, in-service bus during peak periods and
in-service bus during off-peak periods with average car speed are
proposed. The models are cross-validated and the interrelationships are
significant.
Journal: Transportation Planning and Technology
Pages: 465-482
Issue: 4
Volume: 38
Year: 2015
Month: 6
X-DOI: 10.1080/03081060.2015.1026104
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1026104
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Handle: RePEc:taf:transp:v:38:y:2015:i:4:p:465-482
Template-Type: ReDIF-Article 1.0
Author-Name: Cho
Author-X-Name-First:
Author-X-Name-Last: Cho
Author-Name: Gordon
Author-X-Name-First:
Author-X-Name-Last: Gordon
Author-Name: James E. Moore II
Author-X-Name-First: James E.
Author-X-Name-Last: Moore II
Author-Name: Pan
Author-X-Name-First:
Author-X-Name-Last: Pan
Author-Name: Park
Author-X-Name-First:
Author-X-Name-Last: Park
Author-Name: Harry W. Richardson
Author-X-Name-First: Harry W.
Author-X-Name-Last: Richardson
Title: TransNIEMO: economic impact analysis using a model of consistent inter-regional economic and network equilibria
Abstract:
We describe a model that integrates a multiregional input--output (I--O)
model of the USA (for 50 States and the District of Columbia) with the
national highway network. Inter-state commodity shipments are placed on a
congestible highway network. Simulations of major choke-point disruptions
redirect traffic which increases the costs of some shipments. Increased
costs show up in higher prices which help to determine a new I--O
equilibrium. We find economic and network equilibria that are consistent.
The simulations show only moderate economic impacts. We ascribe this to
the resilience of the highway network. The model provides State-level
detail on who bears the costs of the disruptions.
Journal: Transportation Planning and Technology
Pages: 483-502
Issue: 5
Volume: 38
Year: 2015
Month: 7
X-DOI: 10.1080/03081060.2015.1039230
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1039230
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:5:p:483-502
Template-Type: ReDIF-Article 1.0
Author-Name: Michael J. Clay
Author-X-Name-First: Michael J.
Author-X-Name-Last: Clay
Author-Name: Valdez
Author-X-Name-First:
Author-X-Name-Last: Valdez
Author-Name: Norr
Author-X-Name-First:
Author-X-Name-Last: Norr
Title: The simple, efficient, elegant, and effective model (SE-super-3M) of land use and transportation
Abstract:
Integrated land use/transportation forecasting models add significant
policy and infrastructure alternatives analysis capabilities to the urban
planning process. Historically, the financial, time, and staff
requirements to develop one of these models has put them beyond the reach
of most small- to medium-sized urban areas. The purpose of this paper is
to present the large zone economic submodel of SE-super-3M, an integrated
model -- founded upon economic base theory and bid-rent theory -- that is
reasonably accurate, yet simpler in form, function, and implementation
than competing models. The US territory of Guam is used as the case
study/proof of concept implementation for this model framework. The
submodel presented here was validated against a horizon year with known
data for zonal level population and employment totals together with
control totals for the island as a whole. The model was able -- across two
base years and one validation, horizon year -- to locate all jobs and a
high percentage of the population on each zone on the island.
Journal: Transportation Planning and Technology
Pages: 503-516
Issue: 5
Volume: 38
Year: 2015
Month: 7
X-DOI: 10.1080/03081060.2015.1039231
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1039231
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:5:p:503-516
Template-Type: ReDIF-Article 1.0
Author-Name: Zhong
Author-X-Name-First:
Author-X-Name-Last: Zhong
Author-Name: Shan
Author-X-Name-First:
Author-X-Name-Last: Shan
Author-Name: Du
Author-X-Name-First:
Author-X-Name-Last: Du
Author-Name: Lu
Author-X-Name-First:
Author-X-Name-Last: Lu
Title: A comparative analysis of traditional four-step and activity-based travel demand modeling: a case study of Tampa, Florida
Abstract:
Activity-based travel demand modeling (ABTDM) has often been viewed as an
advanced approach, due to its higher fidelity and better policy
sensitivity. However, a review of the literature indicates that no study
has been undertaken to investigate quantitatively the differences and
accuracy between an ABTDM approach and a traditional four-step travel
demand model. In this paper we provide a comparative analysis against each
step -- trip generation, trip distribution, mode split, and network
assignment -- between an ABTDM developed using travel diary data from the
Tampa Bay Region in Florida and the Tampa Bay Regional Planning Model
(TBRPM), an existing traditional four-step model for the same area.
Results show salient differences between the TBRPM and the ABTDM, in terms
of modeling performance and accuracy, in each of the four steps. For
example, trip production rates calculated from the travel diary data are
found to be either double or a quarter less than those used in the TBRPM.
On the other hand, trip attraction rates computed from activity-based
travel simulations are found to be either more than double or one tenth
less than those used in the TBRPM. The trip distribution curves from the
two models are similar, but both average and peak trip lengths of the two
are significantly different. Mode split analyses show that the TBRPM may
underestimate driving trips and fail to capture any usage of alternative
modes, such as taxi and nonmotorized (e.g., walking and bicycling) modes.
In addition, the ABTDMs are found to be less capable of reproducing
observed traffic counts when compared to the TBRPM, most likely due to not
considering external and through trips. The comparative results presented
can help transportation engineers and planners better understand the
strengths and weaknesses of the two types of model and this should assist
decision-makers in choosing a better modeling tool for their planning
initiatives.
Journal: Transportation Planning and Technology
Pages: 517-533
Issue: 5
Volume: 38
Year: 2015
Month: 7
X-DOI: 10.1080/03081060.2015.1039232
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1039232
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Handle: RePEc:taf:transp:v:38:y:2015:i:5:p:517-533
Template-Type: ReDIF-Article 1.0
Author-Name: Evans
Author-X-Name-First:
Author-X-Name-Last: Evans
Author-Name: Amy W. Guo
Author-X-Name-First: Amy W.
Author-X-Name-Last: Guo
Author-Name: Blythe
Author-X-Name-First:
Author-X-Name-Last: Blythe
Author-Name: Burden
Author-X-Name-First:
Author-X-Name-Last: Burden
Title: Integrated smartcard solutions: do people want one card for all their services?
Abstract:
Smartcard technologies offer the potential for bringing transport and
citizen services onto a single smartcard platform -- referred to
henceforth as an integrated ‘Transport-Citizen’ (TranCit)
card. One question never fully addressed thus far is whether the general
public see the integration of services onto a single card as desirable.
Based upon research undertaken through the Yorcard
project trials, this paper presents the analysis of a series of three
focus groups and responses to a public questionnaire which investigated
the general desire for multi-application, integrated smartcards. Our
findings suggest there is potential for an integrated TranCit card,
facilitating easier access to services and travel options across
boundaries, even at the international level. A number of operational,
technical and data security issues exist which need to be resolved before
there would be a greater acceptance of an integrated TranCit card, from
both the traveller and the service provider perspective.
Journal: Transportation Planning and Technology
Pages: 534-551
Issue: 5
Volume: 38
Year: 2015
Month: 7
X-DOI: 10.1080/03081060.2015.1039233
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1039233
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Handle: RePEc:taf:transp:v:38:y:2015:i:5:p:534-551
Template-Type: ReDIF-Article 1.0
Author-Name: Eagling
Author-X-Name-First:
Author-X-Name-Last: Eagling
Author-Name: Ryley
Author-X-Name-First:
Author-X-Name-Last: Ryley
Title: An investigation into the feasibility of increasing rail use as an alternative to the car
Abstract:
With rail travel largely seen to be a more sustainable method than
road-based transport, this paper examines the market segments amongst
existing motorists that would be most likely to travel by train in the UK.
The analysis is based on a large survey in London and the south-east of
England, the area surrounding the routes operated by the train company
First Capital Connect. Findings show that train travellers tend to be
middle-aged and of a higher social grade, typically taking commuting or
business trips. Individuals living within four miles of a station are
considerably more likely to travel by rail than those further away. Given
the competition from road-based transport, it is of particular interest
that the measure highlighted to increase rail use for those living further
away from the rail network is to enhance car parking at train stations.
Journal: Transportation Planning and Technology
Pages: 552-568
Issue: 5
Volume: 38
Year: 2015
Month: 7
X-DOI: 10.1080/03081060.2015.1039234
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1039234
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:5:p:552-568
Template-Type: ReDIF-Article 1.0
Author-Name: Seriani
Author-X-Name-First:
Author-X-Name-Last: Seriani
Author-Name: Fernández
Author-X-Name-First:
Author-X-Name-Last: Fernández
Title: Planning guidelines for metro--bus interchanges by means of a pedestrian microsimulation model
Abstract:
The big paradigm for cities nowadays is to study the movement of
pedestrians at the interface between metro and bus systems --
metro--bus interchanges. When these interchanges are not well
designed, walking is inefficient and can be unsafe for pedestrians. This
paper analyses, by means of a pedestrian microsimulation model,
metro--bus interchange spaces in order to propose planning
guidelines for the city of Santiago de Chile. Specific objectives are (1)
to identify the variables that provide efficiency and safety in those
spaces; (2) to simulate different scenarios using the pedestrian
simulation model LEGION; (3) to propose planning and design guidelines for
pedestrian spaces at metro--bus interchanges; and (4) to
contrast the recommendations in the recently opened terminal station on
Line 1 of Metro de Santiago: Los Dominicos Station.
Journal: Transportation Planning and Technology
Pages: 569-583
Issue: 5
Volume: 38
Year: 2015
Month: 7
X-DOI: 10.1080/03081060.2015.1039235
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1039235
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:5:p:569-583
Template-Type: ReDIF-Article 1.0
Author-Name: Fang Zong
Author-X-Name-First: Fang
Author-X-Name-Last: Zong
Author-Name: Menglin Wang
Author-X-Name-First: Menglin
Author-X-Name-Last: Wang
Title: Understanding parking decisions with a Bayesian network
Abstract:
In this paper, a Bayesian network is developed to investigate three
intertwining parking decisions, namely parking period, parking location,
and parking duration, and the impacts of a number of parking-related
factors on these decisions. With parking information from Beijing, China
in 2005, the structure and parameter of a Bayesian network were learnt by
employing the K2 algorithm and Bayesian parameter estimation method
respectively. The results show that the decision on how long to park
follows that on where to park, and both of them are affected by the
decision of when to park. This suggests that parking policies aimed at
intervening in one specific parking decision may have an indirect
influence on other parking decisions, which embraces an integrated view in
the development of parking policies. The findings facilitate the
development of measures for regulating parking behavior by identifying
important contributing factors.
Journal: Transportation Planning and Technology
Pages: 585-600
Issue: 6
Volume: 38
Year: 2015
Month: 8
X-DOI: 10.1080/03081060.2015.1048943
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1048943
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Handle: RePEc:taf:transp:v:38:y:2015:i:6:p:585-600
Template-Type: ReDIF-Article 1.0
Author-Name: Camille Kamga
Author-X-Name-First: Camille
Author-X-Name-Last: Kamga
Author-Name: M. Anil Yazici
Author-X-Name-First: M. Anil
Author-X-Name-Last: Yazici
Author-Name: Abhishek Singhal
Author-X-Name-First: Abhishek
Author-X-Name-Last: Singhal
Title: Analysis of taxi demand and supply in New York City: implications of recent taxi regulations
Abstract:
This paper investigates temporal and weather-related variation in taxi
trips in New York City. A taxi trip data-set with 147 million records
covering 10 months of activity is used. It is shown that there are
substantial variations in ridership, taxi supply, trip distance, and
pickup frequency for different time periods and weather conditions. These
variations, in turn, cause variations in driver revenues which is one of
the main measures of taxi supply-demand equilibrium. The findings are then
used to discuss the anticipated impacts of two recently enacted taxi
regulation changes: the first fare increase since 2006 and the E-Hail
pilot program which allows taxi hailing with smart phone applications. The
fare increase is estimated to cause varying levels of revenue increase for
different time periods. E-Hail apps are not expected to offer considerable
improvements at all times, but rather when both adequate taxi supply and
demand occur simultaneously.
Journal: Transportation Planning and Technology
Pages: 601-625
Issue: 6
Volume: 38
Year: 2015
Month: 8
X-DOI: 10.1080/03081060.2015.1048944
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1048944
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Handle: RePEc:taf:transp:v:38:y:2015:i:6:p:601-625
Template-Type: ReDIF-Article 1.0
Author-Name: Wen Wang
Author-X-Name-First: Wen
Author-X-Name-Last: Wang
Author-Name: Xiubin Bruce Wang
Author-X-Name-First: Xiubin Bruce
Author-X-Name-Last: Wang
Author-Name: Jing Dong
Author-X-Name-First: Jing
Author-X-Name-Last: Dong
Title: Development and calibration of a long-distance passenger traffic assignment model
Abstract:
This paper studies the assignment of long-distance passenger traffic on a
highway corridor network. First, we propose a traditional model for the
long-distance traffic assignment considering interactions with local
commuter traffic. It addresses the effect of local networks on highway
corridors. An iterative algorithm is developed to solve for the exact
solution. Then, to address the potential computational issues that arise
therein, a decomposition method is proposed by introducing a new concept
of corridor elasticity. An assignment procedure for long-distance
passenger traffic is developed accordingly. Numerical tests show that the
proposed decomposition method makes significant improvements in
computational performance at a small loss of optimality. This
decomposition method well approximates the exact assignment from the
traditional formulation, especially when the highway corridors are
near-saturation. The proposed decomposition method appears practical for
application.
Journal: Transportation Planning and Technology
Pages: 626-645
Issue: 6
Volume: 38
Year: 2015
Month: 8
X-DOI: 10.1080/03081060.2015.1048945
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1048945
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Handle: RePEc:taf:transp:v:38:y:2015:i:6:p:626-645
Template-Type: ReDIF-Article 1.0
Author-Name: Juan P. Romero
Author-X-Name-First: Juan P.
Author-X-Name-Last: Romero
Author-Name: Jose L. Moura
Author-X-Name-First: Jose L.
Author-X-Name-Last: Moura
Author-Name: Angel Ibeas
Author-X-Name-First: Angel
Author-X-Name-Last: Ibeas
Author-Name: Borja Alonso
Author-X-Name-First: Borja
Author-X-Name-Last: Alonso
Title: A simulation tool for bicycle sharing systems in multimodal networks
Abstract:
This paper presents a methodology for modelling an urban transport system,
integrating public bicycles in a multi-modal network. A bike cost function
that reproduces the effect of slopes on cycling speeds is proposed. Also,
the effect of traffic levels on the attractiveness of cycling routes is
taken into account. The model applies the modal split and network
assignment phases in a multimodal network with different classes of users.
It has been verified over a test network and then validated by applying it
to a real case in the city of Santander in Spain. The results obtained
make this model a useful decision-making tool to encourage the use of the
public bicycle from a sustainable development point of view.
Journal: Transportation Planning and Technology
Pages: 646-663
Issue: 6
Volume: 38
Year: 2015
Month: 8
X-DOI: 10.1080/03081060.2015.1048946
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1048946
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Handle: RePEc:taf:transp:v:38:y:2015:i:6:p:646-663
Template-Type: ReDIF-Article 1.0
Author-Name: Tomoya Kawasaki
Author-X-Name-First: Tomoya
Author-X-Name-Last: Kawasaki
Author-Name: Shinya Hanaoka
Author-X-Name-First: Shinya
Author-X-Name-Last: Hanaoka
Author-Name: Long Xuan Nguyen
Author-X-Name-First: Long Xuan
Author-X-Name-Last: Nguyen
Title: Inland cargo flow modelling considering shipment time variability on cross-border transport
Abstract:
This paper formulates an inland cargo flow model that considers the
additional costs incurred because of variability in shipment times at
borders and seaports. Using the proposed model, five scenario analyses for
cross-border haulage between Lao PDR and seaports in Thailand and Vietnam
are carried out in order to assess the impact of improving border and
seaport reliability. These scenario analyses show that improving shipment
time variability at seaports has more impact on cost reduction compared to
improving border reliability. As for seaport choice, both cases of seaport
and border reliability indicate similar trends. Cargo volumes decrease at
Laem Chabang seaport in Thailand and increase at Vietnamese seaports as
reliability at each identified bottleneck is improved.
Journal: Transportation Planning and Technology
Pages: 664-683
Issue: 6
Volume: 38
Year: 2015
Month: 8
X-DOI: 10.1080/03081060.2015.1048947
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1048947
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Handle: RePEc:taf:transp:v:38:y:2015:i:6:p:664-683
Template-Type: ReDIF-Article 1.0
Author-Name: Leonid Engelson
Author-X-Name-First: Leonid
Author-X-Name-Last: Engelson
Author-Name: Dirk van Amelsfort
Author-X-Name-First: Dirk
Author-X-Name-Last: van Amelsfort
Title: The role of volume-delay functions in forecasting and evaluating congestion charging schemes: the Stockholm case
Abstract:
This paper uses observations from before and during the Stockkholm
congestion charging trial in order to validate and improve a
transportation model for Stockholm. The model overestimates the impact of
the charges on traffic volumes while at the same time it substantially
underestimates the impact on travel times. These forecast errors lead to
considerable underestimation of economic benefits which are dominated by
travel time savings. The source of error lies in the static assignment
that is used in the model. Making the volume-delay functions (VDFs)
steeper only marginally improves the quality of forecast but strongly
impacts the result of benefit calculations. We therefore conclude that the
dynamic assignment is crucial for an informed decision on introducing
measures aimed at relieving congestion. However, in the absence of such a
calibrated dynamic model for a city, we recommend that at least a
sensitivity analysis with respect to the slope of VDFs is performed.
Journal: Transportation Planning and Technology
Pages: 684-707
Issue: 6
Volume: 38
Year: 2015
Month: 8
X-DOI: 10.1080/03081060.2015.1048948
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1048948
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:6:p:684-707
Template-Type: ReDIF-Article 1.0
Author-Name: Milan Janic
Author-X-Name-First: Milan
Author-X-Name-Last: Janic
Title: A multi-criteria evaluation of solutions and alternatives for matching capacity to demand in an airport system: the case of London
Abstract:
This paper applies multi-criteria decision-making (MCDM) methods to the
evaluation of solutions and alternatives for matching airport system
airside (runway) capacity to demand. For such a purpose, 'building a new
runway' is considered as the solution and candidate airports of the system
as alternatives for implementing the solution. The alternative airports
are characterized by their physical/spatial, operational, economic,
environmental, and social performance represented by corresponding
indicator systems which, after being defined and estimated under given
operating scenarios, are used as evaluation attributes/criteria by the
selected MCDM methods. Two MCDM methods - Simple Additive Weighting and
Technique for Order of Preference by Similarity to Ideal Solution - are
applied to the case of the London airport system to rank and select the
preferred alternative from three candidate airports - Heathrow, Gatwick,
and Stansted - for where a new runway could be built.
Journal: Transportation Planning and Technology
Pages: 709-737
Issue: 7
Volume: 38
Year: 2015
Month: 10
X-DOI: 10.1080/03081060.2015.1059120
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1059120
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:7:p:709-737
Template-Type: ReDIF-Article 1.0
Author-Name: Sabyasachee Mishra
Author-X-Name-First: Sabyasachee
Author-X-Name-Last: Mishra
Author-Name: Snehamay Khasnabis
Author-X-Name-First: Snehamay
Author-X-Name-Last: Khasnabis
Author-Name: Subrat Swain
Author-X-Name-First: Subrat
Author-X-Name-Last: Swain
Title: Incorporating uncertainty and risk in transportation investment decision-making
Abstract:
This paper presents a framework for addressing uncertainty and risk for
large-scale transportation investments involving public-private
participation. Demand, fare/toll and demand responsive costs are
considered in the uncertainty analysis. Uncertainty analysis provides
information on economic feasibility of the project. A set of relaxation
policies is proposed to form various Ownership, Tenure and Governance
(OTG) strategies reflecting the nature and level of participation by the
public and private entity. A Monte Carlo Simulation-based Value at Risk is
used to quantify risk. Finally, a methodology is proposed to integrate
uncertainty and risk. The framework is tested on the proposed multibillion
dollar Detroit River International Crossing connecting the cities of
Detroit in the USA with Windsor in Canada. The analysis provides insights
to probable outcomes for this transportation infrastructure investment
under different OTG scenarios.
Journal: Transportation Planning and Technology
Pages: 738-760
Issue: 7
Volume: 38
Year: 2015
Month: 10
X-DOI: 10.1080/03081060.2015.1059121
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1059121
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:7:p:738-760
Template-Type: ReDIF-Article 1.0
Author-Name: Sheng-Long Lee
Author-X-Name-First: Sheng-Long
Author-X-Name-Last: Lee
Author-Name: Ping-Chuan Chen
Author-X-Name-First: Ping-Chuan
Author-X-Name-Last: Chen
Author-Name: Wu Chiang Chan
Author-X-Name-First: Wu Chiang
Author-X-Name-Last: Chan
Author-Name: Shiu-Wan Hung
Author-X-Name-First: Shiu-Wan
Author-X-Name-Last: Hung
Title: A three-stage decision-making model for selecting electric vehicle battery technology
Abstract:
This study proposes a three-stage decision-making model for the selection
of electric vehicle battery technology. Data used for analysis include
surveys completed by 45 technology experts from industry, academia, and
research throughout Taiwan. A three-stage model that includes developing
multiple-criteria during the first stage, integrating the importance of
criteria assessment using the fuzzy analytical hierarchy process in the
second stage, and using patent analysis tools to further identify the
patent portfolio of the technology selected by experts in the third stage
are employed. The empirical results indicate that power source management
technology and battery module technology are the key technologies for
development by the electric vehicle industry. Battery energy storage
management and cooling technology are found to be the key for building
patent portfolios. When faced with substantial technical and market
uncertainty, multiple-criteria for research and development (R&D)
selection and stage-wise integration of decision tool must be employed by
battery firms to effectively allocate the resources for R&D decisions.
Journal: Transportation Planning and Technology
Pages: 761-776
Issue: 7
Volume: 38
Year: 2015
Month: 10
X-DOI: 10.1080/03081060.2015.1059122
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1059122
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:7:p:761-776
Template-Type: ReDIF-Article 1.0
Author-Name: Jingyi Hua
Author-X-Name-First: Jingyi
Author-X-Name-Last: Hua
Author-Name: Gang Ren
Author-X-Name-First: Gang
Author-X-Name-Last: Ren
Author-Name: Yang Cheng
Author-X-Name-First: Yang
Author-X-Name-Last: Cheng
Author-Name: Chen Yu
Author-X-Name-First: Chen
Author-X-Name-Last: Yu
Author-Name: Bin Ran
Author-X-Name-First: Bin
Author-X-Name-Last: Ran
Title: Large-scale evacuation network optimization: a bi-level control method with uncertain arterial demand
Abstract:
To improve the efficiency of large-scale evacuations, a network
aggregation method and a bi-level optimization control method are proposed
in this paper. The network aggregation method indicates the uncertain
evacuation demand on the arterial sub-network and balances accuracy and
efficiency by refining local road sub-networks. The bi-level optimization
control method is developed to reconfigure the aggregated network from
both supply and demand sides with contraflow and conflict elimination. The
main purpose of this control method is to make the arterial sub-network to
be served without congestion and interruption. Then, a corresponding
bi-objective network flow model is presented in a static manner for an
oversaturated network, and a Genetic Algorithm-based solution method is
used to solve the evacuation problem. The numerical results from
optimizing a city-scale evacuation network for a super typhoon justify the
validity and usefulness of the network aggregation and optimization
control methods.
Journal: Transportation Planning and Technology
Pages: 777-794
Issue: 7
Volume: 38
Year: 2015
Month: 10
X-DOI: 10.1080/03081060.2015.1059123
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1059123
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:7:p:777-794
Template-Type: ReDIF-Article 1.0
Author-Name: Ahmadreza Talebian
Author-X-Name-First: Ahmadreza
Author-X-Name-Last: Talebian
Author-Name: Yousef Shafahi
Author-X-Name-First: Yousef
Author-X-Name-Last: Shafahi
Title: The treatment of uncertainty in the dynamic origin-destination estimation problem using a fuzzy approach
Abstract:
Regardless of existing types of transportation and traffic model and their
applications, the essential input to these models is travel demand, which
is usually described using origin-destination (OD) matrices. Due to the
high cost and time required for the direct development of such matrices,
they are sometimes estimated indirectly from traffic measurements recorded
from the transportation network. Based on an assumed demand profile, OD
estimation problems can be categorized into static or dynamic groups.
Dynamic OD demand provides valuable information on the within-day
fluctuation of traffic, which can be employed to analyse congestion
dissipation. In addition, OD estimates are essential inputs to dynamic
traffic assignment (DTA) models. This study presents a fuzzy approach to
dynamic OD estimation problems. The problems are approached using a
two-level model in which demand is estimated in the upper level and the
lower level performs DTA via traffic simulation. Using fuzzy rules and the
fuzzy C-Mean clustering approach, the proposed method treats uncertainty
in historical OD demand and observed link counts. The approach employs
expert knowledge to model fitted link counts and to set boundaries for the
optimization problem by defining functions in the fuzzification process.
The same operation is performed on the simulation outputs, and the entire
process enables different types of optimization algorithm to be employed.
The Box-complex method is utilized as an optimization algorithm in the
implementation of the approach. Empirical case studies are performed on
two networks to evaluate the validity and accuracy of the approach. The
study results for a synthetic network and a real network demonstrate the
robust performance of the proposed method even when using low-quality
historical demand data.
Journal: Transportation Planning and Technology
Pages: 795-815
Issue: 7
Volume: 38
Year: 2015
Month: 10
X-DOI: 10.1080/03081060.2015.1059124
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1059124
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:7:p:795-815
Template-Type: ReDIF-Article 1.0
Author-Name: M. Teimouri
Author-X-Name-First: M.
Author-X-Name-Last: Teimouri
Author-Name: M.R. Delavar
Author-X-Name-First: M.R.
Author-X-Name-Last: Delavar
Author-Name: S.H. Chavoshi
Author-X-Name-First: S.H.
Author-X-Name-Last: Chavoshi
Author-Name: M.R. Malek
Author-X-Name-First: M.R.
Author-X-Name-Last: Malek
Author-Name: N. Van de Weghe
Author-X-Name-First: N.
Author-X-Name-Last: Van de Weghe
Author-Name: T. Neutens
Author-X-Name-First: T.
Author-X-Name-Last: Neutens
Author-Name: H.H. Hochmair
Author-X-Name-First: H.H.
Author-X-Name-Last: Hochmair
Title: Accommodating user preferences in ad hoc shared ride trip planning using GIS
Abstract:
Ad hoc shared ride trip planning (SRTP) utilizes mobile devices,
geo-sensors and wireless networks to match on-the-fly individual travel
demand with transport supply. It represents one of many alternatives to
single occupancy vehicle use. This paper outlines a SRTP approach via a
two-phase algorithm based on user preferences in a time-dependent routing.
Whereas current algorithms use minimization of travel time as the only
optimization criterion in trip planning, in the framework presented here,
the user can specify multiple trip preferences including travel time,
walking time, number of transfers between cars and trip length. Various
scenarios are simulated in the city of Tehran (Iran) to demonstrate how
preference settings affect the routes of ad hoc shared journeys.
Journal: Transportation Planning and Technology
Pages: 816-831
Issue: 7
Volume: 38
Year: 2015
Month: 10
X-DOI: 10.1080/03081060.2015.1059125
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1059125
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:7:p:816-831
Template-Type: ReDIF-Article 1.0
Author-Name: Liang Tang
Author-X-Name-First: Liang
Author-X-Name-Last: Tang
Author-Name: Chenfeng Xiong
Author-X-Name-First: Chenfeng
Author-X-Name-Last: Xiong
Author-Name: Lei Zhang
Author-X-Name-First: Lei
Author-X-Name-Last: Zhang
Title: Decision tree method for modeling travel mode switching in a dynamic behavioral process
Abstract:
As road congestion is exacerbated in most metropolitan areas, many
transportation policies and planning strategies try to nudge travelers to
switch to other more sustainable modes of transportation. In order to
better analyze these strategies, there is a need to accurately model
travelers' mode-switching behavior. In this paper, a popular artificial
intelligence approach, the decision tree (DT), is used to explore the
underlying rules of travelers' switching decisions between two modes under
a proposed framework of dynamic mode searching and switching. An effective
and practical method for a mode-switching DT induction is proposed. A loss
matrix is introduced to handle class imbalance issues. Important factors
and their relative importance are analyzed through information gains and
feature selections. Household Travel Survey data are used to implement and
validate the proposed DT induction method. Through comparison with logit
models, the improved prediction ability of the DT models is demonstrated.
Journal: Transportation Planning and Technology
Pages: 833-850
Issue: 8
Volume: 38
Year: 2015
Month: 12
X-DOI: 10.1080/03081060.2015.1079385
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1079385
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Handle: RePEc:taf:transp:v:38:y:2015:i:8:p:833-850
Template-Type: ReDIF-Article 1.0
Author-Name: Mehrdad Gholami Shahbandi
Author-X-Name-First: Mehrdad
Author-X-Name-Last: Gholami Shahbandi
Author-Name: Mohammad Mahdi Nasiri
Author-X-Name-First: Mohammad Mahdi
Author-X-Name-Last: Nasiri
Author-Name: Abbas Babazadeh
Author-X-Name-First: Abbas
Author-X-Name-Last: Babazadeh
Title: A quantum evolutionary algorithm for the second-best congestion pricing problem in urban traffic networks
Abstract:
This paper investigates the congestion pricing problem in urban traffic
networks. A first-best strategy, a second-best strategy for toll leveling
in closed cordons and a second-best strategy for determining both toll
levels and toll points are considered. The problem is known to be a mixed
integer programming model and formulated as a bi-level optimization
problem, with an objective of maximizing the social welfare. A method is
presented to solve the problem, based on a novel metaheuristic algorithm,
namely quantum evolutionary algorithm (QEA). To verify the proposed
method, the widely used genetic algorithm (GA) is also applied to solve
the problem. The problem is solved for a medium-size urban traffic network
and the results of the QEA are compared against the conventional GA.
Computational results show that the QEA outperforms the GA in solution
quality.
Journal: Transportation Planning and Technology
Pages: 851-865
Issue: 8
Volume: 38
Year: 2015
Month: 12
X-DOI: 10.1080/03081060.2015.1079386
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1079386
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:8:p:851-865
Template-Type: ReDIF-Article 1.0
Author-Name: Evangelos Mitsakis
Author-X-Name-First: Evangelos
Author-X-Name-Last: Mitsakis
Author-Name: Josep Maria Salanova Grau
Author-X-Name-First: Josep Maria Salanova
Author-X-Name-Last: Grau
Author-Name: Iraklis Stamos
Author-X-Name-First: Iraklis
Author-X-Name-Last: Stamos
Author-Name: Georgia Aifadopoulou
Author-X-Name-First: Georgia
Author-X-Name-Last: Aifadopoulou
Title: An integrated framework for embedding large-scale dynamic traffic assignment models in advanced traveler information systems
Abstract:
In recent years, increasing attention has been drawn to the development of
various applications of intelligent transportation systems (ITS), which
are credited with the amelioration of traffic conditions in urban and
regional environments. Advanced traveler information systems (ATIS)
constitute an important element of ITS by providing potential travelers
with information on the network's current performance both en-route and
pre-trip. In order to tackle the complexity of such systems, derived from
the difficulty of providing real-time estimations of current as well as
forecasts of future traffic conditions, a series of models and algorithms
have been initiated. This paper proposes the development of an integrated
framework for real-time ATIS and presents its application on a large-scale
network, that of Thessaloniki, Greece, concluding with a discussion on
development and implementation challenges as well as on the advantages and
limitations of such an effort.
Journal: Transportation Planning and Technology
Pages: 866-877
Issue: 8
Volume: 38
Year: 2015
Month: 12
X-DOI: 10.1080/03081060.2015.1079387
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1079387
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:8:p:866-877
Template-Type: ReDIF-Article 1.0
Author-Name: Stephan Müller
Author-X-Name-First: Stephan
Author-X-Name-Last: Müller
Author-Name: Christian Schiller
Author-X-Name-First: Christian
Author-X-Name-Last: Schiller
Title: Improvement of the volume-delay function by incorporating the impact of trucks on traffic flow
Abstract:
In current transportation modelling, travel time is the most important
factor in decisions regarding transport modes, destinations and routes.
The calculation of travel time is deployed by volume-delay functions
(VDFs), a sub-model of route assignment procedure, using the correlation
between increasing numbers of vehicles on a road and the road's
restrictive capacity. By investigating existing VDFs, a clear gap is seen,
demonstrating that current functions are not suited to reflect the
empirically known large impact of trucks on passenger car travel times.
This issue becomes crucial when transport models are used to reflect
future scenarios where goods transportation is expected to increase
greatly, and when transport models combine passenger and commercial
traffic. This paper presents a new VDF which successfully includes trucks'
impact on traffic flow in the case of Germany and, with slight deviations,
for North America. The function is developed using ideal-type data for
German motorways. The differences between German and US data and their
implications for VDFs are also discussed.
Journal: Transportation Planning and Technology
Pages: 878-888
Issue: 8
Volume: 38
Year: 2015
Month: 12
X-DOI: 10.1080/03081060.2015.1079388
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1079388
File-Format: text/html
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Handle: RePEc:taf:transp:v:38:y:2015:i:8:p:878-888
Template-Type: ReDIF-Article 1.0
Author-Name: Ming-Hsiung Hsiao
Author-X-Name-First: Ming-Hsiung
Author-X-Name-Last: Hsiao
Title: Structural equation modeling for national travel demand: an examination of the relationships between communication modes
Abstract:
This paper examines the relationships among different transportation
modes, and between transportation and telecommunications, by applying the
structural equation modeling (SEM) technique. For this purpose, we
collected and compiled time series data on national travel demand, and
socioeconomic and telecommunications conditions in Taiwan, and built
national travel demand models using SEM. The estimation results show that
the relationship between telecommunications and transportation demand
(either car ownership or public transportation) is more complementary than
substitutional. Moreover, car ownership is a type of inelastic necessity
good, and its relationship with public transportation is more
substitutional than complementary. Finally, among the three public
transportation modes - rail, bus and domestic air - it is found that air
is weakest in terms of competitive power. From the viewpoint of long-term
forecasting trends, the bus holds its competitive power in comparison with
other public transportation modes and would not be replaced in the future.
Journal: Transportation Planning and Technology
Pages: 889-908
Issue: 8
Volume: 38
Year: 2015
Month: 12
X-DOI: 10.1080/03081060.2015.1079389
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1079389
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Handle: RePEc:taf:transp:v:38:y:2015:i:8:p:889-908
Template-Type: ReDIF-Article 1.0
Author-Name: Hugo Pietrantonio
Author-X-Name-First: Hugo
Author-X-Name-Last: Pietrantonio
Author-Name: Lili L. Bornsztein
Author-X-Name-First: Lili L.
Author-X-Name-Last: Bornsztein
Title: Evaluating road safety audit procedures: some questions and a new method of study
Abstract:
This article discusses the current views on the application of road safety
audits (RSAs) as a tool for the improvement of road safety and proposes a
new method of study for detailed evaluation of some features that can
influence their effectiveness. This is demonstrated in the practical
setting of RSAs applied to existing road reviews or inspections. Starting
from a review of published sources on RSAs in different countries, a set
of questions has been identified and a case study undertaken on the impact
of alternative RSA procedures on its overall effectiveness. RSA
effectiveness is measured both as agreement with a safety expert
assessment and to an accident-based study. The main features analyzed in
the case study include the type of observer used for data collection and
the type of checklist used as a guide to field work. Based on an
exploratory study, the performance of RSA application is evaluated using
weighted indices of concordance and disagreement, and the rating of
detection or omission for the observations gathered in the accident
diagnosis of the safety problems at the intersection studied, supplemented
by a statistical analysis of the influence of selected covariates on these
scores. The main results of the case study can be summarized as clear
support to team work for field observation and also to employing
less-experienced personnel for field observation. The study also stresses
the need for procedures/criteria for priority setting. These conclusions
are useful for the selection of alternative RSA procedures in agencies
responsible for promoting or enforcing RSA and in professional teams
carrying out RSA tasks. Several features deserving further study are also
identified.
Journal: Transportation Planning and Technology
Pages: 909-934
Issue: 8
Volume: 38
Year: 2015
Month: 12
X-DOI: 10.1080/03081060.2015.1079390
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1079390
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Handle: RePEc:taf:transp:v:38:y:2015:i:8:p:909-934
Template-Type: ReDIF-Article 1.0
Author-Name: Donghyung Yook
Author-X-Name-First: Donghyung
Author-X-Name-Last: Yook
Author-Name: Kevin Heaslip
Author-X-Name-First: Kevin
Author-X-Name-Last: Heaslip
Title: The effect of crowding on public transit user travel behavior in a large-scale public transportation system through modeling daily variations
Abstract:
In this paper, the crowding effect in a transit vehicle is modeled in a
time-expanded network that considers the daily variation in passenger
flows. The study models the daily variation of in-vehicle crowding in a
real large-scale transit system. A transit assignment for this real
network is modeled and implemented by constructing a crowding cost
function that follows the valuation of crowding and by using the reliable
shortest path finding method. The direct application of the crowding model
to a real network for the Utah Transit Authority indicates that crowd
modeling with multi-user classes could influence public transportation
system planning and affect the revenues of transit agencies. Moreover, the
addition of the disutility factor, crowding, does not always appear to
cause an increase in disutility for transit users.
Journal: Transportation Planning and Technology
Pages: 935-953
Issue: 8
Volume: 38
Year: 2015
Month: 12
X-DOI: 10.1080/03081060.2015.1079391
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1079391
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Handle: RePEc:taf:transp:v:38:y:2015:i:8:p:935-953
Template-Type: ReDIF-Article 1.0
Author-Name: Stephen Ison
Author-X-Name-First: Stephen
Author-X-Name-Last: Ison
Author-Name: Ioannis Kaparias
Author-X-Name-First: Ioannis
Author-X-Name-Last: Kaparias
Title: Transportation planning and technology
Journal: Transportation Planning and Technology
Pages: 1-2
Issue: 1
Volume: 39
Year: 2016
Month: 2
X-DOI: 10.1080/03081060.2015.1113664
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1113664
File-Format: text/html
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Handle: RePEc:taf:transp:v:39:y:2016:i:1:p:1-2
Template-Type: ReDIF-Article 1.0
Author-Name: Maria-Ioanna M. Imprialou
Author-X-Name-First: Maria-Ioanna M.
Author-X-Name-Last: Imprialou
Author-Name: Mohammed Quddus
Author-X-Name-First: Mohammed
Author-X-Name-Last: Quddus
Author-Name: David E. Pitfield
Author-X-Name-First: David E.
Author-X-Name-Last: Pitfield
Title: Predicting the safety impact of a speed limit increase using condition-based multivariate Poisson lognormal regression
Abstract:
Speed limit changes are considered to lead to proportional changes in the
number and severity of crashes. To predict the impact of a speed limit
alteration, it is necessary to define a relationship between crashes and
speed on a road network. This paper examines the relationship of crashes
with speed, as well as with other traffic and geometric variables, on the
UK motorways in order to estimate the impact of a potential speed limit
increase from 70 to 80 mph on traffic safety. Full Bayesian
multivariate Poisson lognormal regression models are applied to a data set
aggregated using the condition-based approach for crashes by vehicle (i.e.
single vehicle and multiple vehicle) and severity (i.e. fatal or serious
and slight). The results show that single-vehicle crashes of all
severities and fatal or serious injury crashes involving multiple vehicles
increase at higher speed conditions and particularly when these are
combined with lower volumes. Slight injury multiple-vehicle crashes are
found not to be related to high speeds, but instead with congested
traffic. Using the speed elasticity values derived from the models, the
predicted annual increase in crashes after a speed limit increase on the
UK motorway is found to be 6.2--12.1% for fatal or serious injury crashes
and 1.3--2.7% for slight injury, or else up to 167 more crashes.
Journal: Transportation Planning and Technology
Pages: 3-23
Issue: 1
Volume: 39
Year: 2016
Month: 2
X-DOI: 10.1080/03081060.2015.1108080
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1108080
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Handle: RePEc:taf:transp:v:39:y:2016:i:1:p:3-23
Template-Type: ReDIF-Article 1.0
Author-Name: Urbi Banerjee
Author-X-Name-First: Urbi
Author-X-Name-Last: Banerjee
Author-Name: Julian Hine
Author-X-Name-First: Julian
Author-X-Name-Last: Hine
Title: Interpreting the influence of urban form on household car travel using partial least squares structural equation modelling: some evidence from Northern Ireland
Abstract:
This paper investigates the relative influence of urban form, attitude and
preferences and socio-economic and demographic factors on travel patterns
in terms of vehicular miles travelled in Northern Ireland. Two specific
issues unique to the research context, where car reliance is an inherent
part of daily lifestyle, are of concern when determining the pattern of
these inter-relationships: firstly ‘where we live’ and
secondly its impact on ‘how we travel’ or vice versa. Using
partial least squares structural equation modelling the empirical findings
show that while there is no significant direct influence of the
neighbourhood scale urban form variables on the vehicular miles travelled
(VMT), regional-scale urban form factors exert a strong effect on VMT.
Car-oriented preference and socio-economic characteristics were found to
be key determinants of VMT, although the strongest influence is exerted by
residential preferences namely ‘where we live’ which in turn
influences ‘how we travel’.
Journal: Transportation Planning and Technology
Pages: 24-44
Issue: 1
Volume: 39
Year: 2016
Month: 2
X-DOI: 10.1080/03081060.2015.1108081
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1108081
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Handle: RePEc:taf:transp:v:39:y:2016:i:1:p:24-44
Template-Type: ReDIF-Article 1.0
Author-Name: Bashir Ahmed
Author-X-Name-First: Bashir
Author-X-Name-Last: Ahmed
Author-Name: Nick Hounsell
Author-X-Name-First: Nick
Author-X-Name-Last: Hounsell
Author-Name: Birendra Shrestha
Author-X-Name-First: Birendra
Author-X-Name-Last: Shrestha
Title: Investigating bus priority parameters for isolated vehicle actuated junctions
Abstract:
Bus priority at traffic signals has been implemented in many cities around
the world. At signalised junctions, priority can be given by altering
signal timings in favour of approaching buses. In usual practice, this is
achieved by either extending the green period for an approaching bus or
recalling the green stage, if the signal is currently red for the bus.
These bus priority methods reduce junction delays for buses and thus
improve bus speed and reliability. At isolated junctions in the UK, the
parameters used to implement these priority methods are only based on the
requirements for green extensions. These parameters may not always be
effective for recalls. This study was undertaken to explore whether bus
priority benefits can be improved by considering new priority parameters
effective for both methods.This research has involved the application of
the VISSIM microscopic simulation software to evaluate existing and new
strategies for bus priority at isolated signal controlled junctions
operating under D-system vehicle actuation (VA). During evaluation, bus
travel time savings and impacts on general traffic have been considered.
The performance of these methods on various junction types has been
evaluated. New advanced bus priority methods based on new priority
parameters have been developed and their performance has been compared
with the existing methods.
Journal: Transportation Planning and Technology
Pages: 45-58
Issue: 1
Volume: 39
Year: 2016
Month: 2
X-DOI: 10.1080/03081060.2015.1108082
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1108082
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Handle: RePEc:taf:transp:v:39:y:2016:i:1:p:45-58
Template-Type: ReDIF-Article 1.0
Author-Name: Kaveh Jahanshahi
Author-X-Name-First: Kaveh
Author-X-Name-Last: Jahanshahi
Author-Name: Ying Jin
Author-X-Name-First: Ying
Author-X-Name-Last: Jin
Title: The built environment typologies in the UK and their influences on travel behaviour: new evidence through latent categorisation in structural equation modelling
Abstract:
This paper uses a new latent categorisation approach (LCA) in structural
equation modelling (SEM) to gain fresh insights into the influence of the
built environment characteristics upon travel behaviour. So far as we are
aware, this is the first LCA-SEM application in this field. We use all the
main descriptors of the built environment in the UK National Travel Survey
data in the analysis whilst accounting for the high correlations among the
descriptors -- this is achieved through defining a categorical rather than
continuous latent variable for the built environment characteristics. This
novel approach to defining a tangible typology of the built environment in
the UK is capable of making the analytical results more cogent to
formulating new, proactive land use planning and urban design measures as
well as monitoring the outcomes of on-going planning and transport
interventions. Since travel survey data are regularly collected across a
large number of cities in the world, our approach helps to guide the
design of future travel surveys for those cities in a way that enhances
the analysis and monitoring of the impacts of planning and transport
policies on travel choices.
Journal: Transportation Planning and Technology
Pages: 59-77
Issue: 1
Volume: 39
Year: 2016
Month: 2
X-DOI: 10.1080/03081060.2015.1108083
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1108083
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Handle: RePEc:taf:transp:v:39:y:2016:i:1:p:59-77
Template-Type: ReDIF-Article 1.0
Author-Name: Mohammad Mamouei
Author-X-Name-First: Mohammad
Author-X-Name-Last: Mamouei
Author-Name: Ioannis Kaparias
Author-X-Name-First: Ioannis
Author-X-Name-Last: Kaparias
Author-Name: George Halikias
Author-X-Name-First: George
Author-X-Name-Last: Halikias
Title: A quantitative approach to the behavioural analysis of drivers in highways using particle filtering
Abstract:
The analysis of driving behaviour is a challenging task in the transport
field that has numerous applications, ranging from highway design to
micro-simulation and the development of advanced driver assistance
systems. There has been evidence suggesting changes in the driving
behaviour in response to changes in traffic conditions, and this is known
as adaptive driving behaviour. Identifying these changes and the
conditions under which they happen, and describing them in a systematic
way, contributes greatly to the accuracy of micro-simulation, and more
importantly to the understanding of the traffic flow, and therefore paves
the way for introducing further improvements with respect to the
efficiency of the transport network. In this paper adaptive driving
behaviour is linked to changes in the parameters of a given car-following
model. These changes are tracked using a dynamic system identification
method, called particle filtering. Subsequently, the dynamic parameter
estimates are further processed to identify critical points where
significant changes in the system take place.
Journal: Transportation Planning and Technology
Pages: 78-96
Issue: 1
Volume: 39
Year: 2016
Month: 2
X-DOI: 10.1080/03081060.2015.1108084
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1108084
File-Format: text/html
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Handle: RePEc:taf:transp:v:39:y:2016:i:1:p:78-96
Template-Type: ReDIF-Article 1.0
Author-Name: Konstantinos Papangelis
Author-X-Name-First: Konstantinos
Author-X-Name-Last: Papangelis
Author-Name: John D. Nelson
Author-X-Name-First: John D.
Author-X-Name-Last: Nelson
Author-Name: Somayajulu Sripada
Author-X-Name-First: Somayajulu
Author-X-Name-Last: Sripada
Author-Name: Mark Beecroft
Author-X-Name-First: Mark
Author-X-Name-Last: Beecroft
Title: The effects of mobile real-time information on rural passengers
Abstract:
Mobile real-time passenger information (RTPI) systems are becoming
ubiquitous in public transport and a plethora of studies have explored the
effects they have on passengers. However, these studies mostly focus on
urban areas and largely ignore rural dwellers. In this paper, we present
results of a study that looks into the effects that mobile RTPI has on
passengers in rural areas. The results indicate that the participants
primarily used the mobile RTPI system to gain situation and geospatial
awareness and to adapt their travel behaviour in disrupted circumstances.
Further, we have identified that mobile RTPI significantly affects the
everyday public transport travel of individuals. The outcomes of this
study provide an initial understanding of the effects of a mobile RTPI
system on rural users.
Journal: Transportation Planning and Technology
Pages: 97-114
Issue: 1
Volume: 39
Year: 2016
Month: 2
X-DOI: 10.1080/03081060.2015.1108085
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1108085
File-Format: text/html
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Handle: RePEc:taf:transp:v:39:y:2016:i:1:p:97-114
Template-Type: ReDIF-Article 1.0
Author-Name: Jaimee Lederman
Author-X-Name-First: Jaimee
Author-X-Name-Last: Lederman
Author-Name: Brian D. Taylor
Author-X-Name-First: Brian D.
Author-X-Name-Last: Taylor
Author-Name: Mark Garrett
Author-X-Name-First: Mark
Author-X-Name-Last: Garrett
Title: A private matter: the implications of privacy regulations for intelligent transportation systems
Abstract:
The rapid development and deployment of Intelligent Transportation Systems
(ITS) that utilize data on the movement of vehicles can greatly benefit
transportation network operations and safety, but may test the limits of
personal privacy. In this paper we survey the current state of legal and
industry-led privacy protections related to ITS and find that the lack of
existing standards, rules, and laws governing the collection, storage, and
use of such information could both raise troubling privacy questions and
potentially hinder implementation of useful ITS technologies. We then
offer practical recommendations for addressing ITS-related privacy
concerns though both privacy-by-design solutions (that
build privacy protections into data collection systems), and
privacy-by-policy solutions (that provide guidelines for
data collection and treatment) including limiting the scope of data
collection and use, assuring confidentially of data storage, and other
ways to build trust and foster consumer consent.
Journal: Transportation Planning and Technology
Pages: 115-135
Issue: 2
Volume: 39
Year: 2016
Month: 3
X-DOI: 10.1080/03081060.2015.1127537
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1127537
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Handle: RePEc:taf:transp:v:39:y:2016:i:2:p:115-135
Template-Type: ReDIF-Article 1.0
Author-Name: Kenneth Button
Author-X-Name-First: Kenneth
Author-X-Name-Last: Button
Title: Public--private partnerships: a review of economic considerations with particular reference to transportation projects
Abstract:
The paper sets in context some of the more recent work that has been
conducted on public--private partnerships (PPPs) in the provision and
operation of infrastructure. PPPs essentially involve a government or its
agent signing an agreement with a private company or consortium to supply
it with services with the private sector actor involved in major elements
of designing, building, temporarily ‘owning’, and running
the physical assets; basically they are long-term development and service
contracts between government and a private partner. The paper outlines the
development of economic thinking regarding the rationale behind PPPs, the
extent to which unbundling is optimal and the forms that it may take, the
nature of the contracts that are enacted and their renegotiation, the
awarding of contracts, and matters of possible corruption. By way of
focus, it also provides some indication of what empirical studies in the
transportation have thrown up regarding the outcomes of PPPs.
Journal: Transportation Planning and Technology
Pages: 136-161
Issue: 2
Volume: 39
Year: 2016
Month: 3
X-DOI: 10.1080/03081060.2015.1127538
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1127538
File-Format: text/html
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Handle: RePEc:taf:transp:v:39:y:2016:i:2:p:136-161
Template-Type: ReDIF-Article 1.0
Author-Name: Emily Moylan
Author-X-Name-First: Emily
Author-X-Name-Last: Moylan
Author-Name: Fletcher Foti
Author-X-Name-First: Fletcher
Author-X-Name-Last: Foti
Author-Name: Alexander Skabardonis
Author-X-Name-First: Alexander
Author-X-Name-Last: Skabardonis
Title: Observed and simulated traffic impacts from the 2013 Bay Area Rapid Transit strike
Abstract:
Despite high costs, many cities build public transit to address regional
equity, environmental and economic goals. Although public transit accounts
for a minority of trips (∼5%), the impact is widely felt when
service is suspended during a strike through excess road demand and slower
journeys. In 2013, Bay Area Rapid Transit (BART) workers participated in
two brief strikes, and the resulting traffic conditions illustrate the
value of transit to drivers in the San Francisco Bay Area region. This
paper tests the impact of rail transit service interruption on freeway
traffic conditions using volumes and travel times. During the strike,
regional freeway conditions showed negligible change. However, on
facilities that parallel BART service, the impacts are as bad as the worst
day of a typical week. Conditions on the San Francisco--Oakland Bay Bridge
showed significant impacts with travel times and volumes nearly doubling
the baseline median values on the worst day.
Journal: Transportation Planning and Technology
Pages: 162-179
Issue: 2
Volume: 39
Year: 2016
Month: 3
X-DOI: 10.1080/03081060.2015.1127539
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1127539
File-Format: text/html
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Handle: RePEc:taf:transp:v:39:y:2016:i:2:p:162-179
Template-Type: ReDIF-Article 1.0
Author-Name: Tao Feng
Author-X-Name-First: Tao
Author-X-Name-Last: Feng
Author-Name: Harry J.P. Timmermans
Author-X-Name-First: Harry J.P.
Author-X-Name-Last: Timmermans
Title: Comparison of advanced imputation algorithms for detection of transportation mode and activity episode using GPS data
Abstract:
Global Positioning System (GPS) technologies have been increasingly
considered as an alternative to traditional travel survey methods to
collect activity-travel data. Algorithms applied to extract
activity-travel patterns vary from informal ad-hoc decision rules to
advanced machine learning methods and have different accuracy. This paper
systematically compares the relative performance of different algorithms
for the detection of transportation modes and activity episodes. In
particular, naive Bayesian, Bayesian network, logistic regression,
multilayer perceptron, support vector machine, decision table, and C4.5
algorithms are selected and compared for the same data according to their
overall error rates and hit ratios. Results show that the Bayesian network
has a better performance than the other algorithms in terms of the
percentage correctly identified instances and Kappa values for both the
training data and test data, in the sense that the Bayesian network is
relatively efficient and generalizable in the context of GPS data
imputation.
Journal: Transportation Planning and Technology
Pages: 180-194
Issue: 2
Volume: 39
Year: 2016
Month: 3
X-DOI: 10.1080/03081060.2015.1127540
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1127540
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Handle: RePEc:taf:transp:v:39:y:2016:i:2:p:180-194
Template-Type: ReDIF-Article 1.0
Author-Name: Shreya Das
Author-X-Name-First: Shreya
Author-X-Name-Last: Das
Author-Name: Debapratim Pandit
Author-X-Name-First: Debapratim
Author-X-Name-Last: Pandit
Title: Methodology to determine service delivery levels for public transportation
Abstract:
When designing transit services, the Level-of-Service concept has been
widely used by transport planners and service providers to assess the
service quality of an existing transit system. In addition to the service
quality assessment, service providers also need to estimate the service
levels that will satisfy a maximum number of users and potential users,
across all socio-economic groups, so as to maximize patronage. This paper
demonstrates a method using the concept of ‘user satisfaction
levels’ and their ‘zone of tolerance’, along with
total utility and marginal utility for service providers, to provide a
range of service delivery levels for individual transit service attributes
in the city of Kolkata. This range of service levels provides a guideline
for service providers within which they can consider making an improvement
in service level. However, the final decision on service improvement is an
outcome of both financial and infrastructural feasibility.
Journal: Transportation Planning and Technology
Pages: 195-217
Issue: 2
Volume: 39
Year: 2016
Month: 3
X-DOI: 10.1080/03081060.2015.1127541
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1127541
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Handle: RePEc:taf:transp:v:39:y:2016:i:2:p:195-217
Template-Type: ReDIF-Article 1.0
Author-Name: Olga Petrik
Author-X-Name-First: Olga
Author-X-Name-Last: Petrik
Author-Name: Filipe Moura
Author-X-Name-First: Filipe
Author-X-Name-Last: Moura
Author-Name: João de Abreu e Silva
Author-X-Name-First: João de Abreu e
Author-X-Name-Last: Silva
Title: Measuring uncertainty in discrete choice travel demand forecasting models
Abstract:
In transportation projects, uncertainty related to the difference between
forecast and actual demand is of major interest for the decision-maker, as
it can have a substantial influence on the viability of a project. This
paper identifies and quantifies discrete choice model uncertainty, which
is present in the model parameters and attributes, and determines its
impact on risk taking for decision-making applied to a case study of the
High-Speed Rail project in Portugal. The methodology includes
bootstrapping for the parameter variation, a postulated triangular
distribution for the mode-specific input and a probabilistic graphical
model for the socio-economic input variation. In comparison to point
estimates, the findings for mode shift results in a wider swing in the
system, which constitutes valuable information for decision-makers. The
methodology, findings and conclusions presented in this study can be
generalized to projects involving similar models.
Journal: Transportation Planning and Technology
Pages: 218-237
Issue: 2
Volume: 39
Year: 2016
Month: 3
X-DOI: 10.1080/03081060.2015.1127542
File-URL: http://hdl.handle.net/10.1080/03081060.2015.1127542
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Handle: RePEc:taf:transp:v:39:y:2016:i:2:p:218-237
Template-Type: ReDIF-Article 1.0
Author-Name: Michael Plotnikov
Author-X-Name-First: Michael
Author-X-Name-Last: Plotnikov
Author-Name: John Collura
Author-X-Name-First: John
Author-X-Name-Last: Collura
Title: A methodology to estimate the revenue anticipated from State-level alternative financing approaches in the US
Abstract:
A major issue that State Departments of Transportation (DOTs) in the US
face relates to financing future transportation investments. Questions of
interest to State DOT officials relate to the suitability and revenue
potential of alternative financing approaches. This paper presents a
methodology to estimate the potential levels of revenue associated with
the use of selected combinations of financing approaches and to assess the
adequacy of these revenues vis-a-vis various levels of investments being
considered by decision-makers. The methodology is designed to accommodate
a wide array of inputs such as major policy objectives and initial
assumptions that may vary significantly from State to State in order to
provide a greater flexibility of implementation. The application of this
methodology is demonstrated with an illustrative example for
Massachusetts. This paper should be of interest to State DOTs seeking an
acceptable combination of financing approaches to support future
transportation investments.
Journal: Transportation Planning and Technology
Pages: 239-253
Issue: 3
Volume: 39
Year: 2016
Month: 4
X-DOI: 10.1080/03081060.2016.1142221
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1142221
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Handle: RePEc:taf:transp:v:39:y:2016:i:3:p:239-253
Template-Type: ReDIF-Article 1.0
Author-Name: Cheng-Chieh (Frank) Chen
Author-X-Name-First: Cheng-Chieh (Frank)
Author-X-Name-Last: Chen
Author-Name: Paul Schonfeld
Author-X-Name-First: Paul
Author-X-Name-Last: Schonfeld
Title: A dispatching decision support system for countering delay propagation in intermodal logistics networks
Abstract:
This paper specifies a dispatching decision support system devoted to
managing intermodal logistics operations while countering delay and delay
propagation. When service disruptions occur within a logistics network
where schedule coordination is employed, a dispatching control model
determines through an optimization process whether each ready outbound
vehicle should be dispatched immediately or held to wait for some late
incoming vehicles. Decisions should consider potential missed-connection
costs that may occur not only at the next transfer terminals but also at
hubs located further downstream. Numerical examples and a sensitivity
analysis with different slack time settings for attenuating delay
propagation are presented.
Journal: Transportation Planning and Technology
Pages: 254-268
Issue: 3
Volume: 39
Year: 2016
Month: 4
X-DOI: 10.1080/03081060.2016.1142222
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1142222
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Handle: RePEc:taf:transp:v:39:y:2016:i:3:p:254-268
Template-Type: ReDIF-Article 1.0
Author-Name: Xiaoyan Huang
Author-X-Name-First: Xiaoyan
Author-X-Name-Last: Huang
Author-Name: Xiaoshu Cao
Author-X-Name-First: Xiaoshu
Author-X-Name-Last: Cao
Author-Name: Jason Cao
Author-X-Name-First: Jason
Author-X-Name-Last: Cao
Title: The association between transit access and auto ownership: evidence from Guangzhou, China
Abstract:
In many developing countries, massive investment in transit infrastructure
is concurrent with the proliferation of automobiles. Planners expect that
investment can slow the growth of auto ownership. However, few studies
have examined the relationships between transit access and auto ownership
in developing countries, whereas research in developed countries offers
mixed findings and the outcomes may not be applicable to developing
countries. This study employs a random effect ordered probit model on data
collected from Guangzhou residents in 2011--2012. We find that transit
access is negatively associated with auto ownership, after controlling for
demographics and other built environment variables. This result suggests
that, although income is the dominant driver for auto ownership in growing
developing countries, transit investment is a promising strategy to slow
the growth of auto ownership. This study also highlights the importance of
addressing spatial dependency in clustered data.
Journal: Transportation Planning and Technology
Pages: 269-283
Issue: 3
Volume: 39
Year: 2016
Month: 4
X-DOI: 10.1080/03081060.2016.1142223
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1142223
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Handle: RePEc:taf:transp:v:39:y:2016:i:3:p:269-283
Template-Type: ReDIF-Article 1.0
Author-Name: Moataz Mahmoud
Author-X-Name-First: Moataz
Author-X-Name-Last: Mahmoud
Author-Name: Julian Hine
Author-X-Name-First: Julian
Author-X-Name-Last: Hine
Title: Measuring the influence of bus service quality on the perception of users
Abstract:
Encouraging the use of public transport is a key policy goal in many
countries. Therefore, public transport should offer the level of quality
that accommodates the demands of current users, and importantly, the
desires of potential users. This study investigates the influence of the
perceived quality of bus service on the perception of both current and
potential users. The study draws upon data from 512 questionnaires
distributed across Belfast City in the UK. The study utilises a binary
logistic regression model to quantify the relationships between the
perceived quality of 29 bus indicators (independent) and the perceptions
of users towards the overall bus service (dependent). Eleven significant
indicators are reported to have significant influence on the perception of
users. These indicators are utilised to propose scenarios for optimising
the quality of bus service with the perceptions of current and potential
users.
Journal: Transportation Planning and Technology
Pages: 284-299
Issue: 3
Volume: 39
Year: 2016
Month: 4
X-DOI: 10.1080/03081060.2016.1142224
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1142224
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Handle: RePEc:taf:transp:v:39:y:2016:i:3:p:284-299
Template-Type: ReDIF-Article 1.0
Author-Name: Ehsan Ali Askari
Author-X-Name-First: Ehsan
Author-X-Name-Last: Ali Askari
Author-Name: Mahdi Bashiri
Author-X-Name-First: Mahdi
Author-X-Name-Last: Bashiri
Author-Name: Reza Tavakkoli-Moghaddam
Author-X-Name-First: Reza
Author-X-Name-Last: Tavakkoli-Moghaddam
Title: Vehicle sharing system with fleet sizing and multi-transportation modes under allowable shortages: a hybrid metaheuristic approach
Abstract:
In this paper, a vehicle sharing system with multi-transportation modes
and allowable shortage is presented. This model aims to minimize the
system's total cost by using optimum locations and number of stations,
routes, transportation modes, station capacities for different modes and
time between stations balancing. Because of the model's complexity,
currently available proprietary software is not able to solve the model in
a reasonable computational time, so a hybrid algorithm based on a genetic
algorithm (GA) and particle swarm optimization is presented. The results
confirm its efficiency compared with the classic GA and exact solution
methods. Moreover, a sensitivity analysis shows the applicability of the
proposed algorithm.
Journal: Transportation Planning and Technology
Pages: 300-317
Issue: 3
Volume: 39
Year: 2016
Month: 4
X-DOI: 10.1080/03081060.2016.1142225
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1142225
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Handle: RePEc:taf:transp:v:39:y:2016:i:3:p:300-317
Template-Type: ReDIF-Article 1.0
Author-Name: Natalia Kyriakopoulou
Author-X-Name-First: Natalia
Author-X-Name-Last: Kyriakopoulou
Author-Name: Yorgos N. Photis
Author-X-Name-First: Yorgos N.
Author-X-Name-Last: Photis
Author-Name: Pavlos Kanaroglou
Author-X-Name-First: Pavlos
Author-X-Name-Last: Kanaroglou
Title: Mathematical characterization of spatiotemporal congested traffic patterns: mixed speed data analysis in the greater Toronto and Hamilton area, Canada
Abstract:
This paper formulates a comprehensive methodology for analyzing,
quantifying and identifying congestion characteristics based on speed
distribution. Utilizing vehicle speed data, a mathematical approach is
applied, in order to characterize roadway segments, in terms of travel
reliability, congestion severity and duration. We argue that the Gaussian
mixture model (GMM) and its parameter combination is the appropriate tool
if we are to obtain quantitative congestion measures and rank roadway
performance. A significant contribution of our approach is that it is
based on assumptions regarding mixed components as well as speed
distribution and can be applied to large databases. We test our framework
on the greater Toronto and Hamilton area in Ontario, Canada, and conclude
that congestion quantification through the application of the GMM can be
successfully accomplished. Results indicate that speed patterns differ
significantly between counties as well as days of the week.
Journal: Transportation Planning and Technology
Pages: 318-328
Issue: 3
Volume: 39
Year: 2016
Month: 4
X-DOI: 10.1080/03081060.2016.1142226
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1142226
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Handle: RePEc:taf:transp:v:39:y:2016:i:3:p:318-328
Template-Type: ReDIF-Article 1.0
Author-Name: Mohammed Aljoufie
Author-X-Name-First: Mohammed
Author-X-Name-Last: Aljoufie
Author-Name: Mark Brussel
Author-X-Name-First: Mark
Author-X-Name-Last: Brussel
Author-Name: Mark Zuidgeest
Author-X-Name-First: Mark
Author-X-Name-Last: Zuidgeest
Author-Name: Hedwig van Delden
Author-X-Name-First: Hedwig
Author-X-Name-Last: van Delden
Author-Name: Martin van Maarseveen
Author-X-Name-First: Martin
Author-X-Name-Last: van Maarseveen
Title: Integrated analysis of land-use and transport policy interventions
Abstract:
Analysing the impact of urban policy interventions on urban growth, land
use and transport (LUT) is crucial for urban planners, transport planners
and policy-makers, especially in rapidly growing cities. This paper
presents a cellular automata-based land-use/transport interaction model --
Metronamica-LUTI -- for Jeddah that is used to analyse the impact of
different proposed policy interventions under two urban growth scenarios
for the period 2011--2031. Used as an integrated policy impact assessment
tool, the model demonstrates a strong reciprocal relationship between LUT
in Jeddah. This study shows that relevant spatial information and
integrated policy impact assessment can provide rich insights into the
interaction between LUT, the appropriate policy to consider in place and
time which traditional planning practice and typical static urban models
cannot do.
Journal: Transportation Planning and Technology
Pages: 329-357
Issue: 4
Volume: 39
Year: 2016
Month: 6
X-DOI: 10.1080/03081060.2016.1160578
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1160578
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Handle: RePEc:taf:transp:v:39:y:2016:i:4:p:329-357
Template-Type: ReDIF-Article 1.0
Author-Name: Long Cheng
Author-X-Name-First: Long
Author-X-Name-Last: Cheng
Author-Name: Xuewu Chen
Author-X-Name-First: Xuewu
Author-X-Name-Last: Chen
Author-Name: Shuo Yang
Author-X-Name-First: Shuo
Author-X-Name-Last: Yang
Title: An exploration of the relationships between socioeconomics, land use and daily trip chain pattern among low-income residents
Abstract:
Daily trip chain complexity and type choices of low-income residents are
examined based on activity travel diary survey data in Nanjing, China.
Statistical tests reveal that non-work trip chain complexity is distinctly
distinct between low-income residents and non-low-income residents.
Low-income residents are inclined to make simple non-work chains. Two
types of econometric models, a stereotype logit model and mixed logit
model, are then developed to investigate the possible explanatory
variables affecting their trip pattern. The number of stops within a chain
and chain types are considered as dependent variables, while independent
variables include household and personal characteristics as well as land
use variables. Results show that once convenient and flexible conditions
are supplied, low-income residents are more likely to make multiple
activities in a trip chain. Areas with high population and employment
densities are associated with complex work trip chains and more non-work
activity involvement.
Journal: Transportation Planning and Technology
Pages: 358-369
Issue: 4
Volume: 39
Year: 2016
Month: 6
X-DOI: 10.1080/03081060.2016.1160579
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1160579
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Handle: RePEc:taf:transp:v:39:y:2016:i:4:p:358-369
Template-Type: ReDIF-Article 1.0
Author-Name: Mehran Fasihozaman Langerudi
Author-X-Name-First: Mehran
Author-X-Name-Last: Fasihozaman Langerudi
Author-Name: Taha Hossein Rashidi
Author-X-Name-First: Taha Hossein
Author-X-Name-Last: Rashidi
Author-Name: Abolfazl (Kouros) Mohammadian
Author-X-Name-First: Abolfazl (Kouros)
Author-X-Name-Last: Mohammadian
Title: Individual trip rate transferability analysis based on a decision tree approach
Abstract:
Transferring trip rates to areas without local survey data is a common
practice which is typically performed in an ad hoc fashion using
household-based cross-classification tables. This paper applies a
rule-based decision tree method to develop individual-level trip
generation models for eight different trip purposes as defined in the US
National Household Travel Survey in addition to daily vehicle miles
traveled. For each trip purpose, the models are obtained by finding the
best fitted statistical distribution to each of the final decision tree
clusters while considering the correlation between the trip rates for
other trip purposes. The rule-based models are sensitive to changes in
demographics. The performance of the models is then tested and validated
in a transferability application to the Phoenix Metropolitan Region. These
models can be employed in a disaggregate microsimulation framework to
generate trips with different purposes at the individual or household
level.
Journal: Transportation Planning and Technology
Pages: 370-388
Issue: 4
Volume: 39
Year: 2016
Month: 6
X-DOI: 10.1080/03081060.2016.1160580
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1160580
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Handle: RePEc:taf:transp:v:39:y:2016:i:4:p:370-388
Template-Type: ReDIF-Article 1.0
Author-Name: Chaitanya Paleti
Author-X-Name-First: Chaitanya
Author-X-Name-Last: Paleti
Author-Name: Xiaozheng He
Author-X-Name-First: Xiaozheng
Author-X-Name-Last: He
Author-Name: Srinivas Peeta
Author-X-Name-First: Srinivas
Author-X-Name-Last: Peeta
Title: Design of income-equitable toll prices for high occupancy toll lanes in a single toll facility
Abstract:
Income inequity potentially exists under high occupancy toll (HOT) lanes
whereby higher-income travelers may reap the benefits of the facility. An
income-based multi-toll pricing approach is proposed for a single HOT lane
facility in a network to maximize simultaneously the toll revenue and
address the income equity concern, while ensuring a minimum
level-of-service on the HOT lanes and that the toll prices do not exceed
pre-specified thresholds. The problem is modeled as a bi-level
optimization formulation. The upper level model maximizes revenue for the
tolling authority subject to pre-specified upper bounds on tolls. The
lower level model solves the stochastic user equilibrium problem. An
agent-based solution approach is used to determine the toll prices by
considering the tolling authority and commuters as agents. Results from
numerical experiments indicate that a multi-toll pricing scheme is more
equitable and can yield higher revenues compared to a single toll price
scheme across travelers.
Journal: Transportation Planning and Technology
Pages: 389-406
Issue: 4
Volume: 39
Year: 2016
Month: 6
X-DOI: 10.1080/03081060.2016.1160581
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1160581
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Handle: RePEc:taf:transp:v:39:y:2016:i:4:p:389-406
Template-Type: ReDIF-Article 1.0
Author-Name: Daniel (Jian) Sun
Author-X-Name-First: Daniel (Jian)
Author-X-Name-Last: Sun
Author-Name: Shukai Chen
Author-X-Name-First: Shukai
Author-X-Name-Last: Chen
Author-Name: Chun Zhang
Author-X-Name-First: Chun
Author-X-Name-Last: Zhang
Author-Name: Suwan Shen
Author-X-Name-First: Suwan
Author-X-Name-Last: Shen
Title: A bus route evaluation model based on GIS and super-efficient data envelopment analysis
Abstract:
When compared to large cities in developed countries, the shares of public
transportation in most Chinese cities are low. Increasing the
competitiveness of urban public transportation remains an urgent problem.
A capable evaluation method for public transportation is required to
assist the development of urban transit systems. This paper focuses on the
bus system. Being devoid of standard criteria, it is difficult to
determine the efficiency of a transit system or any bus line using a
single evaluation index. This paper proposes a comparative analysis to
evaluate bus lines so as to filter out candidates for further
optimization. From the viewpoints of transit planning, operation and
quality of service, this paper establishes 10 subordinate evaluation
indices and then uses geographical information system tools, global
positioning system data and smart card data to assist the index definition
and calculation. Super-efficient data envelopment analysis (DEA) method is
adopted for the proposed single factor and comprehensive evaluation
models. Finally, the bus system in Shenzhen, China is used as a case
study. The comparable significant results validate the capability of the
proposed model.
Journal: Transportation Planning and Technology
Pages: 407-423
Issue: 4
Volume: 39
Year: 2016
Month: 6
X-DOI: 10.1080/03081060.2016.1160582
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1160582
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Handle: RePEc:taf:transp:v:39:y:2016:i:4:p:407-423
Template-Type: ReDIF-Article 1.0
Author-Name: Huibo Gong
Author-X-Name-First: Huibo
Author-X-Name-Last: Gong
Author-Name: Xumei Chen
Author-X-Name-First: Xumei
Author-X-Name-Last: Chen
Author-Name: Lei Yu
Author-X-Name-First: Lei
Author-X-Name-Last: Yu
Author-Name: Lijuan Wu
Author-X-Name-First: Lijuan
Author-X-Name-Last: Wu
Title: An application-oriented model of passenger waiting time based on bus departure time intervals
Abstract:
This paper develops an application-oriented model to estimate waiting
times as a function of bus departure time intervals. Bus stops are
classified into Type A and B depending on whether they are connected with
urban rail transit systems. Distributions of passenger arrival rates are
analyzed based on field data for Beijing. The results indicate that the
best fits for the distribution of passenger arrival rates for Type A and B
bus stops are the lognormal distribution and gamma distribution,
respectively. By analyzing relationships between passenger arrival rates
and bus departure time intervals, it is demonstrated that parameters of
the passenger arrival rate distribution can be expressed by the average
and coefficient of variation of bus departure time intervals in functional
relationships. The validation shows that the model provides a reliable
estimation of the average passenger waiting time based on readily
available bus departure time intervals.
Journal: Transportation Planning and Technology
Pages: 424-437
Issue: 4
Volume: 39
Year: 2016
Month: 6
X-DOI: 10.1080/03081060.2016.1160583
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1160583
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Handle: RePEc:taf:transp:v:39:y:2016:i:4:p:424-437
Template-Type: ReDIF-Article 1.0
Author-Name: George Sammour
Author-X-Name-First: George
Author-X-Name-Last: Sammour
Author-Name: Koen Vanhoof
Author-X-Name-First: Koen
Author-X-Name-Last: Vanhoof
Author-Name: Tom Bellemans
Author-X-Name-First: Tom
Author-X-Name-Last: Bellemans
Author-Name: Davy Janssens
Author-X-Name-First: Davy
Author-X-Name-Last: Janssens
Author-Name: Geert Wets
Author-X-Name-First: Geert
Author-X-Name-Last: Wets
Title: Investigating the predictive performance of computational process activity-based transportation models
Abstract:
The aim of this paper is to achieve a better understanding of
computational process activity-based models, by identifying factors that
influence the predictive performance of A Learning-based Transportation
Oriented Simulation System model. Therefore, the work activity process
model, which includes six decision steps, is investigated. The manner of
execution in the process model contains two features, activation
dependency and attribute interdependence. Activation dependency branches
the execution of the simulation while attribute interdependence involves
the inclusion of the decision outcome of a decision step as an attribute
to subsequent decision steps. The model is experimented with by running
the simulation in four settings. The performance of the models is assessed
at three validation levels: the classifier or decision step level, the
activity pattern sequence level and the origin--destination matrix level.
The results of the validation analysis reveal more understanding of the
model. Benchmarks and factors affecting the predictive performance of
computational activity-based models are identified.
Journal: Transportation Planning and Technology
Pages: 551-573
Issue: 6
Volume: 39
Year: 2016
Month: 8
X-DOI: 10.1080/03081060.2016.1187807
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1187807
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Handle: RePEc:taf:transp:v:39:y:2016:i:6:p:551-573
Template-Type: ReDIF-Article 1.0
Author-Name: Seung Hyun Kim
Author-X-Name-First: Seung Hyun
Author-X-Name-Last: Kim
Author-Name: Sang Hoon Bae
Author-X-Name-First: Sang Hoon
Author-X-Name-Last: Bae
Title: Optimal solution to the vehicle routing problem by adopting a meta-heuristic algorithm
Abstract:
The delivery service provided by large-scale retailers continues to grow
as online sales occupy an increasingly large share of the market. This
study aims to tease out efficient vehicle scheduling times as well as
optimal delivery routes by applying meta-heuristic algorithms. Monthly
data on existing routes were obtained from a branch of Korea’s
leading large-scale online retailer. The first task was to examine the
status of existing routes by comparing delivery routes created using
Dijkstra’s algorithm with existing delivery routes and their
vehicle scheduling. The second task was to identify optimal delivery
routes through a comparative analysis of the genetic algorithm and Tabu
search algorithm, known for its superior applicability amongst other
meta-heuristic algorithms. These findings demonstrate that the optimal
vehicle routing problem not only has the potential to reduce distribution
costs for operators and expedite delivery for consumers, but also the
added social benefit of reduced carbon emissions.
Journal: Transportation Planning and Technology
Pages: 574-585
Issue: 6
Volume: 39
Year: 2016
Month: 8
X-DOI: 10.1080/03081060.2016.1187808
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1187808
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Handle: RePEc:taf:transp:v:39:y:2016:i:6:p:574-585
Template-Type: ReDIF-Article 1.0
Author-Name: Ingunn Olea Lund
Author-X-Name-First: Ingunn Olea
Author-X-Name-Last: Lund
Author-Name: Trond Nordfjærn
Author-X-Name-First: Trond
Author-X-Name-Last: Nordfjærn
Author-Name: Torbjørn Rundmo
Author-X-Name-First: Torbjørn
Author-X-Name-Last: Rundmo
Title: Changes in transport risk perception in urban populations in Norway from 2004 to 2013
Abstract:
Urban populations transport risk perception is interesting because it is
associated with travel mode choices and use. This study investigates
changes in transport-related risk constructs in the urban population in
Norway in 2004 and 2013, and describes whether people perceive private or
public to be associated with the highest risk. The results are based on
self-completion questionnaire surveys conducted in two independent
representative samples living in the same urban areas in 2004
(n = 592) and 2013
(n = 1035). Overall, the respondents
perceived the risk as lower in 2013 than in 2004. For both time periods,
people consistently assessed the risk constructs related to private
motorized transportation as higher than corresponding risk in public
transportation. The findings suggest that while transportation risk
perception in urban populations may change over time, the pattern that
private motorized transportation is associated with a higher perceived
risk than public transportation remains stable.
Journal: Transportation Planning and Technology
Pages: 586-596
Issue: 6
Volume: 39
Year: 2016
Month: 8
X-DOI: 10.1080/03081060.2016.1187809
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1187809
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Handle: RePEc:taf:transp:v:39:y:2016:i:6:p:586-596
Template-Type: ReDIF-Article 1.0
Author-Name: Caixia Li
Author-X-Name-First: Caixia
Author-X-Name-Last: Li
Author-Name: Sreenatha Gopalarao
Author-X-Name-First: Sreenatha
Author-X-Name-Last: Gopalarao
Author-Name: Tapabrata Ray
Author-X-Name-First: Tapabrata
Author-X-Name-Last: Ray
Title: A path-based flow formulation for the traffic assignment problem
Abstract:
In order to improve cooperation between traffic management and travelers,
traffic assignment is the key component to achieve the objectives of both
traffic management and route choice decisions for travelers. Traffic
assignment can be classified into two models based on the behavioral
assumptions governing route choices: User Equilibrium (UE) and System
Optimum (SO) traffic assignment. According to UE and SO traffic
assignment, travelers usually compete to choose the least cost routes to
minimize their own travel costs, while SO traffic assignment requires
travelers to work cooperatively to minimize overall cost in the road
network. Thus, the paradox of benefits between UE and SO indicates that
both are not practical. Thus, a solution technique needs to be proposed to
balance UE and SO models, which can compromise both sides and give more
feasible traffic assignments. In this paper, Stackelberg game theory is
introduced to the traffic assignment problem, which can achieve the
trade-off process between traffic management and travelers. Since
traditional traffic assignments have low convergence rates, the gradient
projection algorithm is proposed to improve efficiency.
Journal: Transportation Planning and Technology
Pages: 597-611
Issue: 6
Volume: 39
Year: 2016
Month: 8
X-DOI: 10.1080/03081060.2016.1187810
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1187810
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Handle: RePEc:taf:transp:v:39:y:2016:i:6:p:597-611
Template-Type: ReDIF-Article 1.0
Author-Name: Mehdi Moeinaddini
Author-X-Name-First: Mehdi
Author-X-Name-Last: Moeinaddini
Author-Name: Zohreh Asadi-Shekari
Author-X-Name-First: Zohreh
Author-X-Name-Last: Asadi-Shekari
Author-Name: Zahid Sultan
Author-X-Name-First: Zahid
Author-X-Name-Last: Sultan
Author-Name: Muhammad Zaly Shah
Author-X-Name-First: Muhammad
Author-X-Name-Last: Zaly Shah
Author-Name: Amran Hamzah
Author-X-Name-First: Amran
Author-X-Name-Last: Hamzah
Title: The relationship between urban street networks and private motorized trips at the city level
Abstract:
There are factors that impact car usage in urban areas, such as density,
diversity and design, but there have been few studies that examine the
relationship between street network factors and car usage at the city
level (macro level). This paper focuses on this relationship by
introducing urban street network variables, such as blocks per area, nodes
per block and length of roads and motorways, as independent variables and
the percentage of daily trips by private motorized modes as the dependent
variable. The street network in this study includes interconnecting lines
and points that present streets, roads, motorways, intersections and
blocks. The strength of the relationship in this study is found using
multiple linear regression. The findings of this research indicate that an
increase in car usage is correlated with an increasing number of blocks
per area, number of nodes per block and length of motorways. In addition,
because the urban street network is the result of macro-scale planning
decisions, considering this relationship can lead to better planning
decisions.
Journal: Transportation Planning and Technology
Pages: 612-623
Issue: 6
Volume: 39
Year: 2016
Month: 8
X-DOI: 10.1080/03081060.2016.1187811
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1187811
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Handle: RePEc:taf:transp:v:39:y:2016:i:6:p:612-623
Template-Type: ReDIF-Article 1.0
Author-Name: Dingyou Lei
Author-X-Name-First: Dingyou
Author-X-Name-Last: Lei
Author-Name: Chuijiang Guo
Author-X-Name-First: Chuijiang
Author-X-Name-Last: Guo
Author-Name: Yinggui Zhang
Author-X-Name-First: Yinggui
Author-X-Name-Last: Zhang
Author-Name: Chunxiao Chen
Author-X-Name-First: Chunxiao
Author-X-Name-Last: Chen
Title: Reasonable scheduling for arrival--departure track operations in railway stations
Abstract:
We analyze the train types handled at a section station and the factors
affecting the scheduling of the arrival--departure track operation, using
the following conditions as our optimization goals: operating the
arrival--departure tracks in accordance with a fixed operation scheme, and
reducing the influence which the departing--receiving operations impose on
shunting operations. We establish a 0--1 integer programming model for
formulating a track operation plan. By applying modern sequencing theory,
this is transformed into a fixed sequencing model of special parallel
machines. We then design a heuristic algorithm to solve the model.
Finally, the example of Yiyang railway station is used to verify the
advantages of the model and the algorithm. A better operation plan is
obtained using MATLAB 7.0 by applying the model and the algorithm provided
in the paper, indicating the superiority of our study’s approach.
Journal: Transportation Planning and Technology
Pages: 624-639
Issue: 6
Volume: 39
Year: 2016
Month: 8
X-DOI: 10.1080/03081060.2016.1187812
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1187812
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Handle: RePEc:taf:transp:v:39:y:2016:i:6:p:624-639
Template-Type: ReDIF-Article 1.0
Author-Name: Emmanuel Kidando
Author-X-Name-First: Emmanuel
Author-X-Name-Last: Kidando
Author-Name: Ren Moses
Author-X-Name-First: Ren
Author-X-Name-Last: Moses
Author-Name: Thobias Sando
Author-X-Name-First: Thobias
Author-X-Name-Last: Sando
Author-Name: Eren E. Ozguven
Author-X-Name-First: Eren E.
Author-X-Name-Last: Ozguven
Title: Assessment of factors associated with travel time reliability and prediction: an empirical analysis using probabilistic reasoning approach
Abstract:
Significant efforts have been made in modeling a travel time distribution and establishing measures of travel time reliability (TTR). However, the literature on evaluating the factors affecting TTR is not well established. Accordingly, this paper presents an empirical analysis to determine potential factors that are associated with TTR. This study mainly applies the Bayesian Networks model to assess the probabilistic association between road geometry, traffic data, and TTR. The results from this model reveal that land use characteristics, intersection factors, and posted speed limits are directly associated with TTR. Evaluating the strength of the association between TTR and the directly related variables, the log odds ratio analysis indicates that the land use factor has the highest impact (0.83) followed by the intersection factor (0.57). The findings from this study can provide valuable resources to planners and traffic operators in their decision-making to improve TTR with quantitative evidence.
Journal: Transportation Planning and Technology
Pages: 309-323
Issue: 4
Volume: 42
Year: 2019
Month: 5
X-DOI: 10.1080/03081060.2019.1600239
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1600239
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Handle: RePEc:taf:transp:v:42:y:2019:i:4:p:309-323
Template-Type: ReDIF-Article 1.0
Author-Name: Afroditi Anagnostopoulou
Author-X-Name-First: Afroditi
Author-X-Name-Last: Anagnostopoulou
Author-Name: Evangelos Spyrou
Author-X-Name-First: Evangelos
Author-X-Name-Last: Spyrou
Author-Name: Dimitrios Mitrakos
Author-X-Name-First: Dimitrios
Author-X-Name-Last: Mitrakos
Author-Name: Maria Boile
Author-X-Name-First: Maria
Author-X-Name-Last: Boile
Title: An advanced solution for efficient logistics management at both company and network level
Abstract:
This paper proposes an advanced solution for efficient logistics management in urban areas based on a unified scheme able to address both static and dynamic decision making at a company and network level. The proposed solution generates the most efficient urban distribution plan utilizing an evolutionary metaheuristic approach and a backpressure framework that provide competitive scheduling and routing decisions. An empirical study based on real data is conducted assessing the performance of the proposed advanced solution and the reported results of the evaluation experiments demonstrate its generality and robustness.
Journal: Transportation Planning and Technology
Pages: 324-338
Issue: 4
Volume: 42
Year: 2019
Month: 5
X-DOI: 10.1080/03081060.2019.1600240
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1600240
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Handle: RePEc:taf:transp:v:42:y:2019:i:4:p:324-338
Template-Type: ReDIF-Article 1.0
Author-Name: Jiangbo Gabriel Yu
Author-X-Name-First: Jiangbo Gabriel
Author-X-Name-Last: Yu
Author-Name: R. Jayakrishnan
Author-X-Name-First: R.
Author-X-Name-Last: Jayakrishnan
Title: Quantifying traveler information provision in dynamic heterogeneous traffic networks
Abstract:
Information is effectively the same as a change in uncertainty perceived by an observer. This paper adopts the strict definition of information from Shannon’s Information Theory and provides procedures for quantifying effective provision of traveler information, considering it to be equivalent to the change of perceived uncertainty. The proposed method combines a cognitive grouping theory and an information learning scheme at an individual’s level to evaluate the dynamic information provision in the unit of a bit. Such numerical quantification can be meaningful in evaluating alternatives with more fine-grained information provision strategies and understanding their equity impact. Quantifying information in a manner consistent with Information Theory also provides a ‘shared language’ that facilitates more constructive discussion among stakeholders from different backgrounds. The case study is conducted on a heterogeneous dynamic traffic network near Downtown Los Angeles for evaluating different alternatives of a proposed dynamic message board in terms of its location and dynamic content.
Journal: Transportation Planning and Technology
Pages: 339-354
Issue: 4
Volume: 42
Year: 2019
Month: 5
X-DOI: 10.1080/03081060.2019.1600241
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1600241
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Handle: RePEc:taf:transp:v:42:y:2019:i:4:p:339-354
Template-Type: ReDIF-Article 1.0
Author-Name: Lei Tang
Author-X-Name-First: Lei
Author-X-Name-Last: Tang
Author-Name: Zongtao Duan
Author-X-Name-First: Zongtao
Author-X-Name-Last: Duan
Author-Name: Yaling Zhao
Author-X-Name-First: Yaling
Author-X-Name-Last: Zhao
Title: Toward using social media to support ridesharing services: challenges and opportunities
Abstract:
Ridesharing has been attracting increasing attention from both academia and industry. One of the challenges posed by the study of ridesharing is to identify the most valuable information for improving the ridesharing decisions taken by participants. Another challenge is to use harvesting techniques to extract specific types of travel-related information. Many methods have been developed by the community in order to solve these issues. However, due to a lack of information sharing between different transit authorities and the difficulty of identifying subjective perceptions of the experience of ridesharing, understanding and evaluating how social media data might support or obstruct goals for mobility, safety and environmental sustainability in ridesharing is a difficult task. In this survey, we first analyze the literature on ridesharing with a focus on the properties and model of service, and introduce a framework to describe the major components required for a ridesharing service. Then, we illustrate the potential value of information extracted from social media and present the rationale for harvesting travel-related data. Finally, we detail some possible directions and different approaches for using social media data, and highlight their assets and drawbacks.
Journal: Transportation Planning and Technology
Pages: 355-379
Issue: 4
Volume: 42
Year: 2019
Month: 5
X-DOI: 10.1080/03081060.2019.1600242
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1600242
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Handle: RePEc:taf:transp:v:42:y:2019:i:4:p:355-379
Template-Type: ReDIF-Article 1.0
Author-Name: Wen-Chun Tseng
Author-X-Name-First: Wen-Chun
Author-X-Name-Last: Tseng
Author-Name: Cheng-Lung Wu
Author-X-Name-First: Cheng-Lung
Author-X-Name-Last: Wu
Title: A choice model of airline passengers’ spending behaviour in the airport terminal
Abstract:
This study examines the influence of passengers’ travel-related factors, their intention to shop and the impact of socio-economic factors on their consumption behaviours while at the airport terminal. Three categories of consumption model – shopping, dining and airport entertainment – are developed to analyse different consumption behaviours. The results show that free time is the main factor that influences passengers to choose entertainment while waiting at the terminal, and the use of airline lounges has a negative influence on the extent of engagement in all three types of passenger consumption behaviour, especially dining. Furthermore, passengers’ dining expenditure has a positive effect on the extent of engagement in entertainment, but a negative influence on the extent of engagement in airport shopping. Passengers’ preferences of airport shopping area after they have cleared security is positively associated with the extent of engagement in both shopping and entertainment but negatively associated with the extent of engagement in dining activities.
Journal: Transportation Planning and Technology
Pages: 380-390
Issue: 4
Volume: 42
Year: 2019
Month: 5
X-DOI: 10.1080/03081060.2019.1600243
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1600243
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Handle: RePEc:taf:transp:v:42:y:2019:i:4:p:380-390
Template-Type: ReDIF-Article 1.0
Author-Name: Md Hadiuzzaman
Author-X-Name-First: Md
Author-X-Name-Last: Hadiuzzaman
Author-Name: Nahid Parvez Farazi
Author-X-Name-First: Nahid Parvez
Author-X-Name-Last: Farazi
Author-Name: Sanjana Hossain
Author-X-Name-First: Sanjana
Author-X-Name-Last: Hossain
Author-Name: Saurav Barua
Author-X-Name-First: Saurav
Author-X-Name-Last: Barua
Author-Name: Farzana Rahman
Author-X-Name-First: Farzana
Author-X-Name-Last: Rahman
Title: Structural equation approach to investigate trip-chaining and mode choice relationships in the context of developing countries
Abstract:
This paper investigates empirical relationships between trip chain type and mode class choice for developing countries. To formulate these two sets of decisions, four empirical models are developed using structural equation modeling (SEM). Those models are calibrated using one-month travel diary data collected in Dhaka city. SEM correlates the observed variables and identifies their relationship with trip-chaining type utility and mode class choice utility. The fitted models are selected based on statistical results and similarity with the real-life situation. Direct relationships between trip-chaining and mode choice utilities are found insignificant. However, several socio-demographic factors influence both simultaneously. Consequently, it is essential to consider mode class choice concurrently for modeling trip chains. This study also investigates the influencing factors for work-based and non-work-based trip chains separately and effects of road users’ heterogeneity. The research results can be utilized to perceive trip chain-mode choice patterns for developing countries.
Journal: Transportation Planning and Technology
Pages: 391-415
Issue: 4
Volume: 42
Year: 2019
Month: 5
X-DOI: 10.1080/03081060.2019.1600244
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1600244
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Handle: RePEc:taf:transp:v:42:y:2019:i:4:p:391-415
Template-Type: ReDIF-Article 1.0
Author-Name: Yang Zhou
Author-X-Name-First: Yang
Author-X-Name-Last: Zhou
Author-Name: Chao Yang
Author-X-Name-First: Chao
Author-X-Name-Last: Yang
Author-Name: Rongrong Zhu
Author-X-Name-First: Rongrong
Author-X-Name-Last: Zhu
Title: Identifying trip ends from raw GPS data with a hybrid spatio-temporal clustering algorithm and random forest model: a case study in Shanghai
Abstract:
Smartphones have been advocated as the preferred devices for travel behavior studies over conventional surveys. But the primary challenges are candidate stops extraction from GPS data and trip ends distinction from noise. This paper develops a Resident Travel Survey System (RTSS) for GPS data collection and travel diary verification, and then uses a two-step method to identify trip ends. In the first step, a density-based spatio-temporal clustering algorithm is proposed to extract candidate stops from trajectories. In the second step, a random forest model is applied to distinguish trip ends from mode transfer points. Results show that the clustering algorithm achieves a precision of 96.2%, a recall of 99.6%, mean absolute error of time within 3 min, and average offset distance within 30 meters. The comprehensive accuracy of trip ends identification is 99.2%. The two-step method performs well in trip ends identification and promotes the efficiency of travel survey systems.
Journal: Transportation Planning and Technology
Pages: 739-756
Issue: 8
Volume: 42
Year: 2019
Month: 11
X-DOI: 10.1080/03081060.2019.1675309
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1675309
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Handle: RePEc:taf:transp:v:42:y:2019:i:8:p:739-756
Template-Type: ReDIF-Article 1.0
Author-Name: Vasco Reis
Author-X-Name-First: Vasco
Author-X-Name-Last: Reis
Author-Name: Pedro Macedo
Author-X-Name-First: Pedro
Author-X-Name-Last: Macedo
Title: Mapping and evaluating the complexity of information flows in freight transport chains
Abstract:
The role of information in the efficient management of freight transport systems is well acknowledged. Administrative functions, such as negotiation or payments, involve intensive communication, while the production of the transport service relies heavily on the sharing of information (e.g. track and trace). Yet, specific literature on information flows is relatively scarce. This paper sets out to contribute to filling in this gap. Firstly, it elaborates a set of maps of the information flows for four conceptualisations – direct link, corridor, hub and spoke, and connected hubs – of maritime freight transport, initially proposed by Woxenius (2007, “Generic Framework for Transport Network Designs: Applications and Treatment in Intermodal Freight Transport Literature.” Transport Reviews 27 (6): 733–749. doi:10.1080/01441640701358796). The results reveal a high degree of similarity between import and export services. Secondly, it assesses the complexity of each conceptualisation’s flow network using the concept of entropy. Flows are characterised along four variables: involved agents, timing, and contents and message type. Additionally, a new taxonomy is proposed to categorise the messages. The results evidence the heterogeneous contributions of each category to the complexity of the flows. Finally, the results also reveal that the information flows for the tasks in the pre-transport stage are not specific to the conceptualisation in question and are of comparable complexity to the flows occurring during the transport stage.
Journal: Transportation Planning and Technology
Pages: 757-776
Issue: 8
Volume: 42
Year: 2019
Month: 11
X-DOI: 10.1080/03081060.2019.1675312
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1675312
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Handle: RePEc:taf:transp:v:42:y:2019:i:8:p:757-776
Template-Type: ReDIF-Article 1.0
Author-Name: Adil Baykasoğlu
Author-X-Name-First: Adil
Author-X-Name-Last: Baykasoğlu
Author-Name: Kemal Subulan
Author-X-Name-First: Kemal
Author-X-Name-Last: Subulan
Title: A fuzzy-stochastic optimization model for the intermodal fleet management problem of an international transportation company
Abstract:
In this paper, a fuzzy-stochastic optimization model is developed for an intermodal fleet management system of a large international transportation company. The proposed model integrates various strategic, tactical and operational level decisions simultaneously. Since real-life fleet planning problems may involve different types of uncertainty jointly such as randomness and fuzziness, a hybrid chance-constrained programming and fuzzy interactive resolution-based approach is employed. Therefore, stochastic import/export freight demand and fuzzy transit times, truck/trailer availabilities, the transport capacity of Ro-Ro vessels, bounds on block train services, etc. can also be taken into account concurrently. In addition to minimize overall transportation costs, optimization of total transit times and CO2 emission values are also incorporated in order to provide sustainable fleet plans by maximizing customer satisfaction and environmental considerations. Computational results show that effective and efficient fleet plans can be produced by making use of the proposed optimization model.
Journal: Transportation Planning and Technology
Pages: 777-824
Issue: 8
Volume: 42
Year: 2019
Month: 11
X-DOI: 10.1080/03081060.2019.1675316
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1675316
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Handle: RePEc:taf:transp:v:42:y:2019:i:8:p:777-824
Template-Type: ReDIF-Article 1.0
Author-Name: Feng Chen
Author-X-Name-First: Feng
Author-X-Name-Last: Chen
Author-Name: Jinlei Zhang
Author-X-Name-First: Jinlei
Author-X-Name-Last: Zhang
Author-Name: Zijia Wang
Author-X-Name-First: Zijia
Author-X-Name-Last: Wang
Author-Name: Shunwei Shi
Author-X-Name-First: Shunwei
Author-X-Name-Last: Shi
Author-Name: Haixu Liu
Author-X-Name-First: Haixu
Author-X-Name-Last: Liu
Title: Passenger travel characteristics and bus operational states: a study based on IC card and GPS data in Yinchuan, China
Abstract:
In recent years, public transport has been developing rapidly and producing large amounts of traffic data. Emerging big data-mining techniques enable the application of these data in a variety of ways. This study uses bus intelligent card (IC card) data and global positioning system (GPS) data to estimate passenger boarding and alighting stations. First, an estimation model for boarding stations is introduced to determine passenger boarding stations. Then, the authors propose an innovative uplink and downlink information identification model (UDI) to generate information for estimating alighting stations. Subsequently, the estimation model for the alighting stations is introduced. In addition, a transfer station identification model is also developed to determine transfer stations. These models are applied to Yinchuan, China to analyze passenger flow characteristics and bus operations. The authors obtain passenger flows based on stations (stops), bus lines, and traffic analysis zones (TAZ) during weekdays and weekends. Moreover, average bus operational speeds are obtained. These findings can be used in bus network planning and optimization as well as bus operation scheduling.
Journal: Transportation Planning and Technology
Pages: 825-847
Issue: 8
Volume: 42
Year: 2019
Month: 11
X-DOI: 10.1080/03081060.2019.1675796
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1675796
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Handle: RePEc:taf:transp:v:42:y:2019:i:8:p:825-847
Template-Type: ReDIF-Article 1.0
Author-Name: You-Jin Jung
Author-X-Name-First: You-Jin
Author-X-Name-Last: Jung
Author-Name: Jeffrey M. Casello
Author-X-Name-First: Jeffrey M.
Author-X-Name-Last: Casello
Title: GIS-based transit trip allocation methods converting stop-level boarding and alighting trips into TAZ trips
Abstract:
This study introduces a framework to improve the utilization of new data sources such as automated vehicle location (AVL) and automated passenger counting (APC) systems in transit ridership forecasting models. The direct application of AVL/APC data to travel forecasting requires an important intermediary step that links stops and activities – boarding and alighting – to the actual locations (at the traffic analysis zone (TAZ) level) that generated/attracted these trips. GIS-based transit trip allocation methods are developed with a focus on considering the case when the access shed spans multiple TAZs. The proposed methods improve practical applicability with easily obtained data. The performance of the proposed allocation methods is further evaluated using transit on-board survey data. The results show that the methods can effectively handle various conditions, particularly for major activity generators. The average errors between observed data and the proposed method are about 8% for alighting trips and 18% for boarding trips.
Journal: Transportation Planning and Technology
Pages: 848-867
Issue: 8
Volume: 42
Year: 2019
Month: 11
X-DOI: 10.1080/03081060.2019.1675321
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1675321
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Handle: RePEc:taf:transp:v:42:y:2019:i:8:p:848-867
Template-Type: ReDIF-Article 1.0
Author-Name: Cebrail Ciflikli
Author-X-Name-First: Cebrail
Author-X-Name-Last: Ciflikli
Author-Name: Emre Oner Tartan
Author-X-Name-First: Emre
Author-X-Name-Last: Oner Tartan
Title: A model for the visualization and analysis of elevator traffic
Abstract:
Analysis of elevator traffic in high rise buildings is critical to the performance evaluation of elevator group control systems (EGCS). Elevator dispatching methods or parking algorithms in an EGCS can be designed or modified according to analyses of traffic flow. However, interpretation of traffic flow based solely on numerical data may not be explicit and transparent for EGCS experts as well as for other non-expert building administration. In this study, we present a model for visualization and analysis of elevator traffic. First, we present an alternative approach for traffic analysis which we call route visualization. In the proposed approach, we initially decompose elevator traffic into its component parts and investigate each component independently. Then, using superposition of components we obtain a reconstructed model of overall traffic. This modeling approach provides component-based traffic analysis and representation of routes with intensities through data visualization. In the second part we introduce a multi-dimensional analysis of time parameters in ECGS. This approach provides a comparative analysis of several control algorithms such as dispatch or park algorithms for different combinations of traffic components.
Journal: Transportation Planning and Technology
Pages: 868-880
Issue: 8
Volume: 42
Year: 2019
Month: 11
X-DOI: 10.1080/03081060.2019.1675326
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1675326
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Handle: RePEc:taf:transp:v:42:y:2019:i:8:p:868-880
Template-Type: ReDIF-Article 1.0
Author-Name: Peng Jing
Author-X-Name-First: Peng
Author-X-Name-Last: Jing
Author-Name: Jing Wang
Author-X-Name-First: Jing
Author-X-Name-Last: Wang
Author-Name: Long Chen
Author-X-Name-First: Long
Author-X-Name-Last: Chen
Author-Name: Qi-fen Zha
Author-X-Name-First: Qi-fen
Author-X-Name-Last: Zha
Title: Incorporating the extended theory of planned behavior in a school travel mode choice model: a case study of Shaoxing, China
Abstract:
Travel to and from school can have social, economic, and environmental implications for students and their parents. Therefore, understanding school travel mode choice behavior is essential to find policy-oriented approaches to optimizing school travel mode share. Recent research suggests that psychological factors of parents play a significant role in school travel mode choice behavior and the Multiple Indicators and Multiple Causes (MIMIC) model has been used to test the effect of psychological constructs on mode choice behavior. However, little research has used a systematic framework of behavioral theory to organize these psychological factors and investigate their internal relationships. This paper proposes an extended theory of planned behavior (ETPB) to delve into the psychological factors caused by the effects of adults’ cognition and behavioral habits and explores the factors’ relationship paradigm. A theoretical framework of travel mode choice behavior for students in China is constructed. We established the MIMIC model that accommodates latent variables from ETPB. We found that not all the psychological latent variables have significant effects on school travel mode choice behavior, but habit can play an essential role. The results provide theoretical support for demand policies for school travel.
Journal: Transportation Planning and Technology
Pages: 119-137
Issue: 2
Volume: 41
Year: 2018
Month: 2
X-DOI: 10.1080/03081060.2018.1407508
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1407508
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Handle: RePEc:taf:transp:v:41:y:2018:i:2:p:119-137
Template-Type: ReDIF-Article 1.0
Author-Name: Draženko Glavić
Author-X-Name-First: Draženko
Author-X-Name-Last: Glavić
Author-Name: Marina Milenković
Author-X-Name-First: Marina
Author-X-Name-Last: Milenković
Author-Name: Miloš Nikolić
Author-X-Name-First: Miloš
Author-X-Name-Last: Nikolić
Author-Name: Miloš N. Mladenović
Author-X-Name-First: Miloš N.
Author-X-Name-Last: Mladenović
Title: Determining the number and location of winter road maintenance depots – a case study of the district road network in Serbia
Abstract:
Determining the number and location of depots for winter road maintenance (WRM) represents one of the important strategic decisions while planning WRM activities. However, most organizations dealing with WRM make empirically based decisions. Optimizing the number and location of WRM depots has the potential to achieve considerable cost savings, improve mobility and efficiency, as well as reduce environmental impacts. This paper presents two optimization models. The first model determines the location of WRM depots by minimizing the total distance travelled by maintenance vehicles. The second model determines the optimum number and location of WRM depots by minimizing total transportation costs and capital expenditure and operational expenditure of the depots. The models are then applied to the district road network in Serbia. Results show that their application could lead to significant reductions in WRM costs.
Journal: Transportation Planning and Technology
Pages: 138-153
Issue: 2
Volume: 41
Year: 2018
Month: 2
X-DOI: 10.1080/03081060.2018.1407512
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1407512
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Handle: RePEc:taf:transp:v:41:y:2018:i:2:p:138-153
Template-Type: ReDIF-Article 1.0
Author-Name: Fanyu Meng
Author-X-Name-First: Fanyu
Author-X-Name-Last: Meng
Author-Name: Yuchuan Du
Author-X-Name-First: Yuchuan
Author-X-Name-Last: Du
Author-Name: Yuen Chong Li
Author-X-Name-First: Yuen
Author-X-Name-Last: Chong Li
Author-Name: S. C. Wong
Author-X-Name-First: S. C.
Author-X-Name-Last: Wong
Title: Modeling heterogeneous parking choice behavior on university campuses
Abstract:
Studies on campus parking indicate more severe problems and a wider range of characteristics than commercial parking because of limited parking places, special conditions, specific policies and enclosed space on university campuses. Heterogeneous characteristics are usually ignored in analyses of campus parking behavior. In this paper, a mixed logit model is applied to analyze parking choice behavior on a campus using data collected from a stated-preference survey of Tongji University, Shanghai, China. The heterogeneity of individuals with various sociodemographic characteristics is evaluated by interaction terms and random parameters. Comparison between the proposed approach and the conditional logit model shows that the results of the mixed logit model are more interpretable because they are not limited by the independence from irrelevant alternatives assumption. Key factors that have considerable effects on campus parking choices are identified and analyzed. Important regularities are also concluded from elasticity analyses. Finally, the campus is divided into two areas according to the walking distance to a new parking lot, and the modeling results show that area-specific policies should be established because the two areas have quite distinct parking choice features.
Journal: Transportation Planning and Technology
Pages: 154-169
Issue: 2
Volume: 41
Year: 2018
Month: 2
X-DOI: 10.1080/03081060.2018.1407518
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1407518
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Handle: RePEc:taf:transp:v:41:y:2018:i:2:p:154-169
Template-Type: ReDIF-Article 1.0
Author-Name: Subeh Chowdhury
Author-X-Name-First: Subeh
Author-X-Name-Last: Chowdhury
Author-Name: Michael O’Sullivan
Author-X-Name-First: Michael
Author-X-Name-Last: O’Sullivan
Title: A fuzzy logic-genetic algorithm approach to modelling public transport users’ risk-taking behaviour
Abstract:
This paper seeks to determine the effects of uncertainty in out-of-vehicle times on route choice. Data were collected at two key interchanges in Auckland, New Zealand. Previous work modelled the data using a manual approach to fuzzy logic. This study extends that work by automating the process through defining a black-box function to match the survey data, then employing a genetic algorithm to fine-tune the fuzzy logic model. Results show that automation and the genetic algorithm improve the model’s capability to more accurately predict ridership. The tuning of the membership functions is conducted twice, first using initial fuzzy rules and again after the fuzzy rules have been adjusted to reduce disparity between the output and survey data. The calibrated membership functions provided for operational (transfer waiting and walking time and delay) and physical attributes (safety and seat availability) can be used by practitioners to determine an estimated ridership.
Journal: Transportation Planning and Technology
Pages: 170-185
Issue: 2
Volume: 41
Year: 2018
Month: 2
X-DOI: 10.1080/03081060.2018.1407520
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1407520
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Handle: RePEc:taf:transp:v:41:y:2018:i:2:p:170-185
Template-Type: ReDIF-Article 1.0
Author-Name: Ching-chih Chou
Author-X-Name-First: Ching-chih
Author-X-Name-Last: Chou
Author-Name: Chien-wen Shen
Author-X-Name-First: Chien-wen
Author-X-Name-Last: Shen
Title: An exploration of the competitive relationship between intercity transport systems
Abstract:
A suitable model that enables the analysis of dynamic relationships between transport systems is important for managers to make real-time reaction strategies. This study proposes an autoregressive distributed lag modeling approach that can point a way to interpret the long- and short-term relationships between intercity transport systems. To test the applicability of the approach with regard to evaluating the dynamic competitive relationships between intercity transport systems, an empirical study sample is adopted in evaluating competition between high-speed rail (HSR) and intercity bus services. The results indicate that HSR has a long-run impact on intercity bus transport and the intercity bus transport market is positively affected by its previous operations and negatively influenced by the previous performance of HSR. However, in the short-run, the current period performance of HSR positively affects the intercity bus transport market.
Journal: Transportation Planning and Technology
Pages: 186-197
Issue: 2
Volume: 41
Year: 2018
Month: 2
X-DOI: 10.1080/03081060.2018.1407526
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1407526
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Handle: RePEc:taf:transp:v:41:y:2018:i:2:p:186-197
Template-Type: ReDIF-Article 1.0
Author-Name: Shumin Feng
Author-X-Name-First: Shumin
Author-X-Name-Last: Feng
Author-Name: Xianghao Shen
Author-X-Name-First: Xianghao
Author-X-Name-Last: Shen
Author-Name: Baoyu Hu
Author-X-Name-First: Baoyu
Author-X-Name-Last: Hu
Title: Optimization of traffic demand management policy in China: towards a sustainable mode split
Abstract:
The rapid increase in private car use in large metropolitan areas has led to irrational travel mode splits and severe traffic problems. Traffic demand management (TDM) is an effective policy to achieve a more sustainable development of traffic systems. This study analyzes the relationships between TDM policy, mode split, and travel mode choice using Stackelberg game theory. Then, using 0–1 programming, it establishes a combination of TDM policy instruments that can achieve a more sustainable mode split in a city and provides a case study in China. The method presented in this research has strong theoretical implications for TDM policymakers.
Journal: Transportation Planning and Technology
Pages: 198-210
Issue: 2
Volume: 41
Year: 2018
Month: 2
X-DOI: 10.1080/03081060.2018.1407528
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1407528
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Handle: RePEc:taf:transp:v:41:y:2018:i:2:p:198-210
Template-Type: ReDIF-Article 1.0
Author-Name: Zhaoming Chu
Author-X-Name-First: Zhaoming
Author-X-Name-Last: Chu
Author-Name: Hui Chen
Author-X-Name-First: Hui
Author-X-Name-Last: Chen
Author-Name: Lin Cheng
Author-X-Name-First: Lin
Author-X-Name-Last: Cheng
Author-Name: Senlai Zhu
Author-X-Name-First: Senlai
Author-X-Name-Last: Zhu
Author-Name: Chao Sun
Author-X-Name-First: Chao
Author-X-Name-Last: Sun
Title: A Pareto-improving hybrid rationing and pricing policy with multiclass network equilibria
Abstract:
This paper extends the work on Pareto-improving hybrid rationing and pricing policy for general road networks by considering heterogeneous users with different values of time. Mathematical programming models are proposed to find a multiclass Pareto-improving pure road space rationing scheme (MPI-PR) and multiclass hybrid rationing and pricing schemes (MHPI and MHPI-S). A numerical example with a multimodal network is provided for comparing both the efficiency and equity of the three proposed policies. We discover that MHPI-S can achieve the largest reduction in total system delay, MHPI can induce the least spatial inequity and MHPI-S is a progressive policy which is appealing to policy makers. Furthermore, numerical results reveal that different classes of users react differently to the same hybrid policies and multiclass Pareto-improving hybrid schemes yield less delay reduction when compared to their single-class counterparts.
Journal: Transportation Planning and Technology
Pages: 211-228
Issue: 2
Volume: 41
Year: 2018
Month: 2
X-DOI: 10.1080/03081060.2018.1407530
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1407530
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Handle: RePEc:taf:transp:v:41:y:2018:i:2:p:211-228
Template-Type: ReDIF-Article 1.0
Author-Name: Juliet Jain
Author-X-Name-First: Juliet
Author-X-Name-Last: Jain
Author-Name: Stephen Ison
Author-X-Name-First: Stephen
Author-X-Name-Last: Ison
Title: Universities’ Transport Study Group U.K. annual conference 2016
Journal: Transportation Planning and Technology
Pages: 1-3
Issue: 1
Volume: 40
Year: 2017
Month: 1
X-DOI: 10.1080/03081060.2016.1248155
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1248155
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Handle: RePEc:taf:transp:v:40:y:2017:i:1:p:1-3
Template-Type: ReDIF-Article 1.0
Author-Name: Omar Alotaibi
Author-X-Name-First: Omar
Author-X-Name-Last: Alotaibi
Author-Name: Dimitris Potoglou
Author-X-Name-First: Dimitris
Author-X-Name-Last: Potoglou
Title: Perspectives of travel strategies in light of the new metro and bus networks in Riyadh City, Saudi Arabia
Abstract:
In an effort to reduce traffic congestion and excess dependency on private vehicles in Riyadh City, authorities are considering introducing public transport infrastructure and enforcement policies. This study was conducted to evaluate whether the current Riyadh City transport policy measures are adequate to encourage public transport ridership and identify relevant transport policy measures to encourage a shift from use of private cars to public transport. A series of semi-structured interviews were conducted in Riyadh during June and July 2015. Seventeen study participants were selected to represent local stakeholders including transport experts and representatives of Riyadh City authorities. It was found that existing transport policy measures involve conventional approaches, for example, increasing road infrastructure to match growth in private vehicle ownership. There is, however, considerable support for reshaping the existing travel demand management policies and measures along with introducing a public transport system. Improving infrastructure to enhance accessibility to and from transit stations, selecting appropriate transit-oriented development sites, parking charges, separate carriages for families, and promoting the safety of public transport facilities are perceived as the most effective strategies.
Journal: Transportation Planning and Technology
Pages: 4-27
Issue: 1
Volume: 40
Year: 2017
Month: 1
X-DOI: 10.1080/03081060.2016.1238572
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1238572
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Handle: RePEc:taf:transp:v:40:y:2017:i:1:p:4-27
Template-Type: ReDIF-Article 1.0
Author-Name: R. Camporeale
Author-X-Name-First: R.
Author-X-Name-Last: Camporeale
Author-Name: L. Caggiani
Author-X-Name-First: L.
Author-X-Name-Last: Caggiani
Author-Name: A. Fonzone
Author-X-Name-First: A.
Author-X-Name-Last: Fonzone
Author-Name: M. Ottomanelli
Author-X-Name-First: M.
Author-X-Name-Last: Ottomanelli
Title: Quantifying the impacts of horizontal and vertical equity in transit route planning
Abstract:
Equity refers to a fair sharing of costs or resources. Horizontal equity concerns distribution among individuals or groups with the same necessities, whereas vertical equity should be considered in situations with different levels of needs. This paper deals with transit service, looking at how to make it equitable from a spatial and social point of view. Traditionally equity has been neglected in transit planning, being in the best cases an afterthought during service provision. Hence, we propose a methodology to plan and design public transport routes, which meets the needs of communities fostering equitable accessibility. In this paper we put forward a method to incorporate horizontal and vertical equity goals in a Transit Network Design Problem. We study how the costs of the system change with the attained level of equity and found that higher overall costs may be born if more equitable service provision has to be pursued.
Journal: Transportation Planning and Technology
Pages: 28-44
Issue: 1
Volume: 40
Year: 2017
Month: 1
X-DOI: 10.1080/03081060.2016.1238569
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1238569
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Handle: RePEc:taf:transp:v:40:y:2017:i:1:p:28-44
Template-Type: ReDIF-Article 1.0
Author-Name: Matt Grote
Author-X-Name-First: Matt
Author-X-Name-Last: Grote
Author-Name: Ian Williams
Author-X-Name-First: Ian
Author-X-Name-Last: Williams
Author-Name: John Preston
Author-X-Name-First: John
Author-X-Name-Last: Preston
Author-Name: Simon Kemp
Author-X-Name-First: Simon
Author-X-Name-Last: Kemp
Title: Local government authority attitudes to road traffic CO emissions modelling: a British case study
Abstract:
Local government authorities (LGAs) play a key role in facilitating mitigation of road traffic CO2 emissions and must engage in emissions modelling to quantify the impact of transport interventions. Existing Emissions Model (EM) methodologies range from aggregate to disaggregate approaches, with more detail normally entailing more resources. However, it is not clear which approaches LGAs actually utilise. This article reports results of a survey designed to discover the level of detail considered practical by British LGAs (n = 34). Results show that resource scarcity is important, with particular importance attached to EM reusability and convenient input data sources. Most LGA EMs use traffic variable inputs (predominantly traffic flow and traffic average speed), with this approach being the best-fit for LGA resources. Link-by-link sources of data rated highly for convenience are Road Traffic Models and Urban traffic control systems.
Journal: Transportation Planning and Technology
Pages: 45-63
Issue: 1
Volume: 40
Year: 2017
Month: 1
X-DOI: 10.1080/03081060.2016.1238570
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1238570
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Handle: RePEc:taf:transp:v:40:y:2017:i:1:p:45-63
Template-Type: ReDIF-Article 1.0
Author-Name: Charles B. A. Musselwhite
Author-X-Name-First: Charles B. A.
Author-X-Name-Last: Musselwhite
Title: Assessment of computer-based training packages to improve the safety of older people’s driver behaviour
Abstract:
Examination of police records in Wales (STATS19 database) suggests older drivers are over represented in collisions turning across traffic and those involving failure to look properly, failure to judge the other vehicle or person’s path and performing a poor manoeuvre. A convened expert group suggests this is due to changes in attention, cognitive overload, processing speed, perceptual speed, working memory, task switching and eyesight associated with ageing. Training using computer-based packages can improve these cognitive and physiological issues associated with age. Performance on Useful Field of View (UFoV), Delayed Recall, Maze test and Dual N task computer tasks have all been shown to be related to number of crashes older drivers have. Of these only UFOV and Dual N task training improvements have been demonstrated to translate into improved driver behaviour, but overall more research is needed.
Journal: Transportation Planning and Technology
Pages: 64-79
Issue: 1
Volume: 40
Year: 2017
Month: 1
X-DOI: 10.1080/03081060.2016.1238571
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1238571
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Handle: RePEc:taf:transp:v:40:y:2017:i:1:p:64-79
Template-Type: ReDIF-Article 1.0
Author-Name: Dimitris Potoglou
Author-X-Name-First: Dimitris
Author-X-Name-Last: Potoglou
Author-Name: Botakoz Arslangulova
Author-X-Name-First: Botakoz
Author-X-Name-Last: Arslangulova
Title: Factors influencing active travel to primary and secondary schools in Wales
Abstract:
This paper examines the factors associated with active travel to school on an average (typical) school day in Wales and contrasts these findings between primary and secondary school children. The analysis was based on data for 4206 primary school children (4–12 years of age) and 3203 adolescents (12–19 years of age) collected as part of the 2013/2014 and 2014/2015 waves of the National Survey for Wales. Logistic regression estimates showed that living within less than one mile from the school, parents’ frequency of walking and cycling and residing in an urban area were positively associated with active travel to both primary and secondary schools. Children’s age, mother’s unavailability and home ownership were negatively associated with active travel to primary school. Gender differences were only identified in the secondary school trips with female adolescents being less likely to walk to school than males. Findings point to the importance of ‘beyond-the-school’ active-travel campaigns and intervention programmes aimed at involving parents in encouraging walking and cycling to school.
Journal: Transportation Planning and Technology
Pages: 80-99
Issue: 1
Volume: 40
Year: 2017
Month: 1
X-DOI: 10.1080/03081060.2016.1238573
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1238573
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Handle: RePEc:taf:transp:v:40:y:2017:i:1:p:80-99
Template-Type: ReDIF-Article 1.0
Author-Name: Sebastian Seriani
Author-X-Name-First: Sebastian
Author-X-Name-Last: Seriani
Author-Name: Taku Fujiyama
Author-X-Name-First: Taku
Author-X-Name-Last: Fujiyama
Author-Name: Catherine Holloway
Author-X-Name-First: Catherine
Author-X-Name-Last: Holloway
Title: Exploring the pedestrian level of interaction on platform conflict areas at metro stations by real-scale laboratory experiments
Abstract:
To reduce passenger interactions improvement on platform designs is needed. Present procedures use the level of service (LOS) based only on average values and therefore is not possible to identify which piece of space reached the highest interaction. This paper explores a new method to classify the interaction between passengers boarding and alighting through laboratory experiments under controlled conditions. The experiments were based on observation at two stations operated by London Underground Limited, which included platform edge doors and a semi-circular space defined as platform conflict area. Results were expressed according to the types of queues, formation of lanes, density by layer, and distance between passengers. The level of interaction was a more precise indicator compared to the LOS. The density by layer followed a logarithmic distribution, reaching almost four times the overall density. Further research needs to be conducted to measure the passenger space on the platform.
Journal: Transportation Planning and Technology
Pages: 100-118
Issue: 1
Volume: 40
Year: 2017
Month: 1
X-DOI: 10.1080/03081060.2016.1238574
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1238574
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Handle: RePEc:taf:transp:v:40:y:2017:i:1:p:100-118
Template-Type: ReDIF-Article 1.0
Author-Name: Yuji Shi
Author-X-Name-First: Yuji
Author-X-Name-Last: Shi
Author-Name: Simon Blainey
Author-X-Name-First: Simon
Author-X-Name-Last: Blainey
Author-Name: Nick Hounsell
Author-X-Name-First: Nick
Author-X-Name-Last: Hounsell
Title: Using GIS to assess the potential for centralised planning of bus networks
Abstract:
The current regulatory and planning environment means that road-based public transport in UK urban areas (with the exception of London) tends to be planned on a piecemeal basis, and there are often conflicts between the needs and priorities of operators, passengers and planners. In consequence, several local authorities are considering adopting an alternative regulatory environment using quality contracts, with a consequent shift towards centralised service planning. There are though no tools readily available to ensure this centralised service planning will lead to a situation, which provides a better balance between the interests of the different stakeholders. This paper describes the development of a methodology to fill this gap, using Southampton as a case study to explore the corresponding improvement methods, which could be applied based on the alternative regulatory environment. The improvement methods, including both bus route design and frequency setting, are considered in this paper, which demonstrates how this service improvement problem can be solved by making use of an optimisation technique, the tabu search algorithm, developed under the environment of ArcObjects for Java. While the methodology is developed in the UK context, the general principles used could be applied more widely to improve transit network planning.
Journal: Transportation Planning and Technology
Pages: 119-142
Issue: 1
Volume: 40
Year: 2017
Month: 1
X-DOI: 10.1080/03081060.2016.1238575
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1238575
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Handle: RePEc:taf:transp:v:40:y:2017:i:1:p:119-142
Template-Type: ReDIF-Article 1.0
Author-Name: Mengqiu Cao
Author-X-Name-First: Mengqiu
Author-X-Name-Last: Cao
Author-Name: Robin Hickman
Author-X-Name-First: Robin
Author-X-Name-Last: Hickman
Title: Urban transport and social inequities in neighbourhoods near underground stations in Greater London
Abstract:
Social equity, and the contribution that transport planning can make to social equity, are increasingly attracting the attention of transport planners and researchers. This perhaps reflects the heightened levels of social inequity in cities and the concern over differential access to transport and participation in activities. This paper considers these issues by applying the Capabilities Approach to transport, in order to examine an individual’s opportunities to travel and engage in activities (capabilities) and their actual day to day travel and engagement in activities (functionings). London is selected as a case study using analysis from three Underground stations on the Jubilee Line Extension. The findings show that there are statistically significant differences in terms of capabilities and functionings across the socio-demographic characteristics of individuals, and also across different neighbourhoods in London. It is argued that unless local residents’ potential travel opportunities and actual activities, and the gaps between them, are better understood and responded to, the problem of transport-related social inequity is likely to persist in London. Therefore, we suggest that the findings from this research, including the multi-dimensional social indicators and understanding of the barriers to accessibility, could be used alongside existing approaches such as accessibility planning.
Journal: Transportation Planning and Technology
Pages: 419-441
Issue: 5
Volume: 42
Year: 2019
Month: 7
X-DOI: 10.1080/03081060.2019.1609215
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1609215
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Handle: RePEc:taf:transp:v:42:y:2019:i:5:p:419-441
Template-Type: ReDIF-Article 1.0
Author-Name: Jiping Fang
Author-X-Name-First: Jiping
Author-X-Name-Last: Fang
Author-Name: Taku Fujiyama
Author-X-Name-First: Taku
Author-X-Name-Last: Fujiyama
Author-Name: Howard Wong
Author-X-Name-First: Howard
Author-X-Name-Last: Wong
Title: Modelling passenger distribution on metro platforms based on passengers’ choices for boarding cars
Abstract:
Metro capacity should be further improved with growing demand for metros. For metro lines with high-frequency services, the train dwell time is a determinant of the number of trains per hour. Uneven passenger distribution on the platform may cause a longer dwell time, thereby reducing the capacity. This study analyses the mechanism of the passenger distribution on the platform with regard to which cars of a train passengers choose to board. A model has been developed, considering the origin-destination and waiting time of passengers and the platform layouts of the stations where passengers board and alight. The model was calibrated using loadweigh data, which provides the weight of passengers on each car of a train, on the Hammersmith & City line of the London Underground. The largest difference between the actual and modelled average number of boarders on a car is less than 2 passengers, which suggests the model performs well. The results show, at both stations studied, 44% of passengers in the morning peak chose boarding cars based on the layouts of the stations where they alighted. The results would be useful for metro operation planners and station staff to take measures to manage passenger distribution on the platform.
Journal: Transportation Planning and Technology
Pages: 442-458
Issue: 5
Volume: 42
Year: 2019
Month: 7
X-DOI: 10.1080/03081060.2019.1609218
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1609218
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Handle: RePEc:taf:transp:v:42:y:2019:i:5:p:442-458
Template-Type: ReDIF-Article 1.0
Author-Name: Rui Sha
Author-X-Name-First: Rui
Author-X-Name-Last: Sha
Author-Name: Andy H. F. Chow
Author-X-Name-First: Andy H. F.
Author-X-Name-Last: Chow
Title: A comparative study of centralised and decentralised architectures for network traffic control
Abstract:
This paper presents a comparative study of centralised and decentralised architectures for managing urban road network efficiency with consideration of users’ responses and uncertainties with respect to prevailing traffic conditions. The control systems are applied to different network topologies with different levels and spatial distributions of traffic demand. The study reveals that the computationally effective decentralised systems could perform almost as well as the conventional centralised one when users’ responses are taken into account with provision of real-time traffic information. This generates new insight on cooperative transport management with applications of information and communication technology.
Journal: Transportation Planning and Technology
Pages: 459-469
Issue: 5
Volume: 42
Year: 2019
Month: 7
X-DOI: 10.1080/03081060.2019.1609219
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1609219
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Handle: RePEc:taf:transp:v:42:y:2019:i:5:p:459-469
Template-Type: ReDIF-Article 1.0
Author-Name: Shuo Li
Author-X-Name-First: Shuo
Author-X-Name-Last: Li
Author-Name: Phil Blythe
Author-X-Name-First: Phil
Author-X-Name-Last: Blythe
Author-Name: Weihong Guo
Author-X-Name-First: Weihong
Author-X-Name-Last: Guo
Author-Name: Anil Namdeo
Author-X-Name-First: Anil
Author-X-Name-Last: Namdeo
Title: Investigating the effects of age and disengagement in driving on driver’s takeover control performance in highly automated vehicles
Abstract:
Driving is closely linked to older people’s mobility and independence. However, age-related functional decline reduces their safe driving abilities and thereby their wellbeing may decline. The rapid development of vehicle automation has the potential to enhance the mobility of older drivers by enabling them to continue driving safer for longer. So far only limited work has been carried out to study older drivers’ interaction with highly automated vehicles (HAV). This study investigates the effect of age and level of driving disengagement on the takeover control performance in HAV. A driving simulation study with 76 drivers has been conducted. Results showed that 20 s was sufficient for drivers to take over control from HAV. Older drivers take longer to respond and make decisions than younger drivers. The age effect on some aspects of takeover quality, in terms of operating steering wheel and pedals, is still pronounced. In addition, complete disengagement in driving in HAV leads to a longer takeover time and worse takeover quality, and it affects older drivers more seriously than younger drivers. The results highlight that an age-friendly design of human-machine interaction is important for enhancing the safety and comfort of older drivers when interacting with HAVs.
Journal: Transportation Planning and Technology
Pages: 470-497
Issue: 5
Volume: 42
Year: 2019
Month: 7
X-DOI: 10.1080/03081060.2019.1609221
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1609221
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Handle: RePEc:taf:transp:v:42:y:2019:i:5:p:470-497
Template-Type: ReDIF-Article 1.0
Author-Name: Rosalia Camporeale
Author-X-Name-First: Rosalia
Author-X-Name-Last: Camporeale
Author-Name: Leonardo Caggiani
Author-X-Name-First: Leonardo
Author-X-Name-Last: Caggiani
Author-Name: Achille Fonzone
Author-X-Name-First: Achille
Author-X-Name-Last: Fonzone
Author-Name: Michele Ottomanelli
Author-X-Name-First: Michele
Author-X-Name-Last: Ottomanelli
Title: Study of the accessibility inequalities of cordon-based pricing strategies using a multimodal Theil index
Abstract:
The implementation of an appropriate pricing policy in an urban area could alleviate both environmental and congestion problems by encouraging a shift towards more sustainable modes of transportation. However, any positive net social welfare balance delivered by the policy can hide unacceptable regressive effects. Therefore, it is crucial to investigate any change in relative levels of accessibility among different categories of transport network users.This study focuses on the application of a cordon-based congestion pricing scheme on a multimodal network, where private cars and public transportation coexist, and includes a sensitivity analysis by varying the size of the charging area and the amount of the toll, for a monocentric urban reality. Taking into account an elastic demand associated with each proposed charging scenario, the related distributional effects are explored using the Theil index, with a quantitative assessment of the inequalities in the accessibility variations across the users of the network.
Journal: Transportation Planning and Technology
Pages: 498-514
Issue: 5
Volume: 42
Year: 2019
Month: 7
X-DOI: 10.1080/03081060.2019.1609222
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1609222
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Handle: RePEc:taf:transp:v:42:y:2019:i:5:p:498-514
Template-Type: ReDIF-Article 1.0
Author-Name: Stephen Dixon
Author-X-Name-First: Stephen
Author-X-Name-Last: Dixon
Author-Name: Daniel Johnson
Author-X-Name-First: Daniel
Author-X-Name-Last: Johnson
Author-Name: Richard Batley
Author-X-Name-First: Richard
Author-X-Name-Last: Batley
Title: A job accessibility index to evaluate employment impacts in isolated regions now restored to the rail network
Abstract:
Restoration of rail links to rural or isolated regions may generate wider economic impacts by improving employment accessibility. An applicable simplified index is developed based on potential job opportunities, measuring location advantage with respect to the job market. A gravity-based approach assesses the accessibility of the workforce in each location to opportunities in all other locations, where fewer or more distant opportunities provide diminishing influence. Specific issues are the practicability of commuting due to the infrequency of public transport to a limited range of destinations, and the types of job available at each location. Consequently, to reflect these effects in a more remote context, measures representing proximity and service frequency were incorporated into the index, with allowance for skills matching with a new approach in closer matching of occupations between different locations. Comparing the accessibility index by location over the intervention period highlighted those areas most impacted by infrastructure changes. Applying the rail intervention of the Stirling-Alloa line as a case study illustrated that not accounting for local job skills matching tends to overestimate the attraction factor of job opportunities, and the wider difference when the job index is based on generalised cost suggests that generalised cost of travel including the value of time is more of an impediment than actual travelling time.
Journal: Transportation Planning and Technology
Pages: 515-537
Issue: 5
Volume: 42
Year: 2019
Month: 7
X-DOI: 10.1080/03081060.2019.1609223
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1609223
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Handle: RePEc:taf:transp:v:42:y:2019:i:5:p:515-537
Template-Type: ReDIF-Article 1.0
Author-Name: Stephen Ison
Author-X-Name-First: Stephen
Author-X-Name-Last: Ison
Author-Name: Helena Titheridge
Author-X-Name-First: Helena
Author-X-Name-Last: Titheridge
Author-Name: Benjamin Heydecker
Author-X-Name-First: Benjamin
Author-X-Name-Last: Heydecker
Title: Universities’ Transport Study Group UK Annual Conference 2018
Journal: Transportation Planning and Technology
Pages: 417-418
Issue: 5
Volume: 42
Year: 2019
Month: 7
X-DOI: 10.1080/03081060.2019.1615759
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1615759
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Handle: RePEc:taf:transp:v:42:y:2019:i:5:p:417-418
Template-Type: ReDIF-Article 1.0
Author-Name: Kollol Shams
Author-X-Name-First: Kollol
Author-X-Name-Last: Shams
Author-Name: Hamidreza Asgari
Author-X-Name-First: Hamidreza
Author-X-Name-Last: Asgari
Author-Name: Md Sakoat Hossan
Author-X-Name-First: Md Sakoat
Author-X-Name-Last: Hossan
Author-Name: Xia Jin
Author-X-Name-First: Xia
Author-X-Name-Last: Jin
Title: An investigation of tour generation models combining two waves of household travel surveys through pooled models
Abstract:
This paper presents a study that examines two waves of travel survey data through a pooled model structure. The pooled model structure provides a means to take advantage of multiple data sources which will lead to a better estimate and understanding of travel behavior. In particular, it accounts for the difference in data variance and therefore allows for the comparison of the true impacts of the model parameters on travelers’ tour-making behavior. Larger variance is found in the 1998 data than in the 2010 data. Comparison between model parameters reveals significant behavioral changes among several socio-economic and demographic groups. In terms of common variables, the magnitude of the coefficient values has generally decreased, which conforms to the overall decreasing trend in traveling. Overall, the model equality tests indicate that the models developed based on the two data sources do not have equal taste parameters, thus the transferability hypothesis is rejected. The results of this study are expected to have implications for the application of models based on cross-sectional data, especially over long time periods.
Journal: Transportation Planning and Technology
Pages: 229-243
Issue: 3
Volume: 41
Year: 2018
Month: 4
X-DOI: 10.1080/03081060.2018.1435415
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1435415
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Handle: RePEc:taf:transp:v:41:y:2018:i:3:p:229-243
Template-Type: ReDIF-Article 1.0
Author-Name: Md. Saniul Alam
Author-X-Name-First: Md. Saniul
Author-X-Name-Last: Alam
Author-Name: Aonghus McNabola
Author-X-Name-First: Aonghus
Author-X-Name-Last: McNabola
Title: Network-wide traffic and environmental impacts of acceleration and deceleration among Eco-Driving Vehicles in different road configurations
Abstract:
Eco-Driving, a driver behaviour-based method, has featured in a number of national policy documents as part of CO2 emission reduction or climate change strategies. This investigation comprises a detailed assessment of acceleration and deceleration in Eco-Driving Vehicles at different penetration levels in the vehicle fleet, under varying traffic composition and volume. The impacts of Eco-Driving on network-wide traffic and environmental performance at a number of speed-restricted road networks (30 km/h) is quantified using microsimulation. The results show that increasing levels of Eco-Driving in certain road networks result in significant environmental and traffic congestion detriments at the road network level in the presence of heavy traffic. Increases in CO2 emissions of up to 18% were found. However, with the addition of vehicle-to-vehicle or vehicle-to-infrastructure communication technology which facilitates dynamic driving control on speed and acceleration/deceleration in vehicles, improvements in CO2 emissions and traffic congestion are possible using Eco-Driving.
Journal: Transportation Planning and Technology
Pages: 244-264
Issue: 3
Volume: 41
Year: 2018
Month: 4
X-DOI: 10.1080/03081060.2018.1435436
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1435436
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Handle: RePEc:taf:transp:v:41:y:2018:i:3:p:244-264
Template-Type: ReDIF-Article 1.0
Author-Name: Hyunmyung Kim
Author-X-Name-First: Hyunmyung
Author-X-Name-Last: Kim
Author-Name: Daisik Nam
Author-X-Name-First: Daisik
Author-X-Name-Last: Nam
Author-Name: Wonho Suh
Author-X-Name-First: Wonho
Author-X-Name-Last: Suh
Author-Name: Seung Hoon Cheon
Author-X-Name-First: Seung Hoon
Author-X-Name-Last: Cheon
Title: Origin-destination trip table estimation based on subarea network OD flow and vehicle trajectory data
Abstract:
Identifying accurate origin-destination (O-D) travel demand is one of the most important and challenging tasks in the transportation planning field. Recently, a wide range of traffic data has been made available. This paper proposes an O-D estimation model using multiple field data. This study takes advantage of emerging technologies – car navigation systems, highway toll collecting systems and link traffic counts – to determine O-D demand. The proposed method is unique since these multiple data are combined to improve the accuracy of O-D estimation for an entire network. We tested our model on a sample network and found great potential for using multiple data as a means of O-D estimation. The errors of a single input data source do not critically affect the model’s overall accuracy, meaning that combining multiple data provides resilience to these errors. It is suggested that the model is a feasible means for more reliable O-D estimation.
Journal: Transportation Planning and Technology
Pages: 265-285
Issue: 3
Volume: 41
Year: 2018
Month: 4
X-DOI: 10.1080/03081060.2018.1435437
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1435437
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Handle: RePEc:taf:transp:v:41:y:2018:i:3:p:265-285
Template-Type: ReDIF-Article 1.0
Author-Name: Martha A. Roper
Author-X-Name-First: Martha A.
Author-X-Name-Last: Roper
Author-Name: Konstantinos Triantis
Author-X-Name-First: Konstantinos
Author-X-Name-Last: Triantis
Author-Name: G. Don Taylor
Author-X-Name-First: G. Don
Author-X-Name-Last: Taylor
Author-Name: Dusan Teodorović
Author-X-Name-First: Dusan
Author-X-Name-Last: Teodorović
Title: Revenue management in the parking industry: a multiple garage intelligent reservation model
Abstract:
This paper explores how advanced reservations, coupled with dynamic pricing (based on booking limits) can be used to maximize parking revenue. An integer programing formulation that maximizes parking revenue over a system of garages is presented. Furthermore, an intelligent parking reservation model is developed that uses an artificial neural network procedure for online reservation decision-making. Finally, the paper provides some strategic and managerial implications of multi-garage revenue management systems, and discusses techniques for identifying and implementing micro-market segmentation in the parking industry.
Journal: Transportation Planning and Technology
Pages: 286-300
Issue: 3
Volume: 41
Year: 2018
Month: 4
X-DOI: 10.1080/03081060.2018.1435449
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1435449
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Handle: RePEc:taf:transp:v:41:y:2018:i:3:p:286-300
Template-Type: ReDIF-Article 1.0
Author-Name: Nur Sabahiah Abdul Sukor
Author-X-Name-First: Nur Sabahiah
Author-X-Name-Last: Abdul Sukor
Author-Name: Nur Khairiyah Basri
Author-X-Name-First: Nur
Author-X-Name-Last: Khairiyah Basri
Author-Name: Ari K. M. Tarigan
Author-X-Name-First: Ari K. M.
Author-X-Name-Last: Tarigan
Title: The role of incentives towards adolescents’ commitment to use public transport in Malaysia
Abstract:
This study examines the adoption of a travel behaviour modification programme to encourage sustainable mobility and public bus usage. Students from four schools in Penang Island were recruited and divided into two groups: Group 1 (without incentives) and Group 2 (with incentives). In the experiment, after having a motivation session about sustainable transport, the respondents were asked to design their travel patterns for seven days. The next session gathered data about their actual travel and asked for feedback regarding the programme. The results demonstrate that incentives encouraged respondents to follow their plans for travel behaviour and public bus usage. The results highlight that their commitment to follow their travel plans were influenced by ethnicity, distance from home to school, travel time, and household income. The study offers some discussion regarding the implications of the results for strengthening sustainable mobility and encouraging public bus use among adolescents.
Journal: Transportation Planning and Technology
Pages: 301-318
Issue: 3
Volume: 41
Year: 2018
Month: 4
X-DOI: 10.1080/03081060.2018.1435451
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1435451
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Handle: RePEc:taf:transp:v:41:y:2018:i:3:p:301-318
Template-Type: ReDIF-Article 1.0
Author-Name: Weiwei Wu
Author-X-Name-First: Weiwei
Author-X-Name-Last: Wu
Author-Name: Cheng-Lung Wu
Author-X-Name-First: Cheng-Lung
Author-X-Name-Last: Wu
Title: Enhanced delay propagation tree model with Bayesian Network for modelling flight delay propagation
Abstract:
An enhanced Delay Propagation Tree model with Bayesian Network (DPT-BN) is developed to model multi-flight delay propagation and delay interdependencies. Using a set of real airline data, results show that flights have non-homogeneous delay propagation effects. The DPT-BN model is used to infer posterior delay profiles with different delay and scheduling scenarios. The major contribution of the DPT-BN model is to demonstrate how the modelling of non-independent and identically distributed delay profiles is more realistic for the observed delay propagation mechanism, and how robust airline scheduling methodologies can benefit from this probability-based delay model.
Journal: Transportation Planning and Technology
Pages: 319-335
Issue: 3
Volume: 41
Year: 2018
Month: 4
X-DOI: 10.1080/03081060.2018.1435453
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1435453
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Handle: RePEc:taf:transp:v:41:y:2018:i:3:p:319-335
Template-Type: ReDIF-Article 1.0
Author-Name: Rafael Milani Medeiros
Author-X-Name-First: Rafael Milani
Author-X-Name-Last: Medeiros
Author-Name: Fábio Duarte
Author-X-Name-First: Fábio
Author-X-Name-Last: Duarte
Author-Name: Faris Achmad
Author-X-Name-First: Faris
Author-X-Name-Last: Achmad
Author-Name: Arman Jalali
Author-X-Name-First: Arman
Author-X-Name-Last: Jalali
Title: Merging ICT and informal transport in Jakarta's ojek system
Abstract:
This paper discusses how information and communication technologies (ICT) may influence travel behavior of an informal transport system, and whether and in which ways merging digital technologies represents disruption for a specific sociotechnical ensemble. For decades, ojek has been a form of informal passenger transport, based on motorcycles in Jakarta, and recently smartphone apps have become available in that sociotechnical arrangement. We randomly surveyed passengers and drivers in the central district, for both those who do and do not use these apps. Despite many similarities between both groups, the drivers who use smartphones for their trips reported higher daily incomes, longer average trip distances and a larger coverage area. Passengers using conventional ojek transport reported lower levels of both safety perception and satisfaction when compared to app-based ojek users. For both categories of user, ojek seems to compete with, complement, and be an alternative to bus rapid transit and the suburban rail system (KRL) in the area covered by our sample. The areas covered by regular buses and vans roughly match the origins and destinations of ojek trips.
Journal: Transportation Planning and Technology
Pages: 336-352
Issue: 3
Volume: 41
Year: 2018
Month: 4
X-DOI: 10.1080/03081060.2018.1435465
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1435465
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Handle: RePEc:taf:transp:v:41:y:2018:i:3:p:336-352
Template-Type: ReDIF-Article 1.0
Author-Name: Adam Millard-Ball
Author-X-Name-First: Adam
Author-X-Name-Last: Millard-Ball
Author-Name: Robert C. Hampshire
Author-X-Name-First: Robert C.
Author-X-Name-Last: Hampshire
Author-Name: Rachel R. Weinberger
Author-X-Name-First: Rachel R.
Author-X-Name-Last: Weinberger
Title: Map-matching poor-quality GPS data in urban environments: the pgMapMatch package
Abstract:
Global Positioning System (GPS) data have become ubiquitous in many areas of transportation planning and research. The usefulness of GPS data often depends on the points being matched to the true sequence of edges on the underlying street network – a process known as ‘map matching.’ This paper presents a new map-matching algorithm that is designed for use with poor-quality GPS traces in urban environments, where drivers may circle for parking and GPS quality may be affected by underground parking and tall buildings. The paper is accompanied by open-source Python code that is designed to work with a PostGIS spatial database. In a test dataset that includes many poor-quality traces, our new algorithm accurately matches about one-third more traces than a widely available alternative. Our algorithm also provides a ‘match score’ that evaluates the likelihood that the match for an individual trace is correct, reducing the need for manual inspection.
Journal: Transportation Planning and Technology
Pages: 539-553
Issue: 6
Volume: 42
Year: 2019
Month: 8
X-DOI: 10.1080/03081060.2019.1622249
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1622249
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Handle: RePEc:taf:transp:v:42:y:2019:i:6:p:539-553
Template-Type: ReDIF-Article 1.0
Author-Name: Jonny Evans
Author-X-Name-First: Jonny
Author-X-Name-Last: Evans
Author-Name: Ben Waterson
Author-X-Name-First: Ben
Author-X-Name-Last: Waterson
Author-Name: Andrew Hamilton
Author-X-Name-First: Andrew
Author-X-Name-Last: Hamilton
Title: Forecasting road traffic conditions using a context-based random forest algorithm
Abstract:
With the ability to accurately forecast road traffic conditions several hours, days and even months ahead of time, both travellers and network managers can take pro-active measures to minimise congestion, saving time, money and emissions. This study evaluates a previously developed random forest algorithm, RoadCast, which was designed to achieve this task. RoadCast incorporates contexts using machine learning to forecast more accurately contexts such as public holidays, sporting events and school term dates. This paper evaluates the potential of RoadCast as a traffic forecasting algorithm for use in Intelligent Transport System applications. Tests are undertaken using a number of different forecast horizons and varying amounts of training data, and an implementation procedure is recommended.
Journal: Transportation Planning and Technology
Pages: 554-572
Issue: 6
Volume: 42
Year: 2019
Month: 8
X-DOI: 10.1080/03081060.2019.1622250
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1622250
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Handle: RePEc:taf:transp:v:42:y:2019:i:6:p:554-572
Template-Type: ReDIF-Article 1.0
Author-Name: Miloš Nikolić
Author-X-Name-First: Miloš
Author-X-Name-Last: Nikolić
Author-Name: Dušan Teodorović
Author-X-Name-First: Dušan
Author-X-Name-Last: Teodorović
Title: Mitigation of disruptions in public transit by Bee Colony Optimization
Abstract:
Dispatchers in many public transit companies face the daily problem of assigning available buses to bus routes under conditions of bus shortages. In addition to this, weather conditions, crew absenteeism, traffic accidents, traffic congestion and other factors lead to disturbances of the planned schedule. We propose the Bee Colony Optimization (BCO) algorithm for mitigation of bus schedule disturbances. The developed model takes care of interests of the transit operator and passengers. The model reassigns available buses to bus routes and, if it is allowed, the model simultaneously changes the transportation network topology (it shortens some of the planned bus routes) and reassigns available buses to a new set of bus routes. The model is tested on the network of Rivera (Uruguay). Results obtained show that the proposed algorithm can significantly mitigate disruptions.
Journal: Transportation Planning and Technology
Pages: 573-586
Issue: 6
Volume: 42
Year: 2019
Month: 8
X-DOI: 10.1080/03081060.2019.1622251
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1622251
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Handle: RePEc:taf:transp:v:42:y:2019:i:6:p:573-586
Template-Type: ReDIF-Article 1.0
Author-Name: Moshiur Rahman
Author-X-Name-First: Moshiur
Author-X-Name-Last: Rahman
Author-Name: Shamsunnahar Yasmin
Author-X-Name-First: Shamsunnahar
Author-X-Name-Last: Yasmin
Author-Name: Naveen Eluru
Author-X-Name-First: Naveen
Author-X-Name-Last: Eluru
Title: Examining determinants of rail ridership: a case study of the Orlando SunRail system
Abstract:
The current study contributes to the literature on transit ridership by considering daily boarding and alighting data from a recently launched commuter rail system in Orlando, Florida – SunRail. The analysis is conducted based on daily boarding and alighting data for 10 months for the year 2015. With the availability of repeated observations for every station, the potential impact of common unobserved factors affecting ridership variables are considered. The current study develops an estimation framework, for boarding and alighting separately, that accounts for these unobserved effects at multiple levels – station, station-week and station-day. In addition, the study examines the impact of various observed exogenous factors such as station level, transportation infrastructure, transit infrastructure, land use, built environment, sociodemographic and weather variables on ridership. The model system developed will allow us to predict ridership for existing stations in the future as well as potential ridership for future expansion sites.
Journal: Transportation Planning and Technology
Pages: 587-605
Issue: 6
Volume: 42
Year: 2019
Month: 8
X-DOI: 10.1080/03081060.2019.1622252
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1622252
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Handle: RePEc:taf:transp:v:42:y:2019:i:6:p:587-605
Template-Type: ReDIF-Article 1.0
Author-Name: Rodrigo Rezende Amaral
Author-X-Name-First: Rodrigo Rezende
Author-X-Name-Last: Amaral
Author-Name: Ivana Semanjski
Author-X-Name-First: Ivana
Author-X-Name-Last: Semanjski
Author-Name: Sidharta Gautama
Author-X-Name-First: Sidharta
Author-X-Name-Last: Gautama
Author-Name: El-Houssaine Aghezzaf
Author-X-Name-First: El-Houssaine
Author-X-Name-Last: Aghezzaf
Title: Exploring the issue of integrating logistics and traffic control in urban areas
Abstract:
This paper proposes an optimization framework for urban transportation networks’ (re-)design which explicitly takes into account the specific decision-making processes of ordinary users and logistic operators. Ordinary users are typically commuters whose travels consist of well-defined pairs of origin and destination points, while logistic operators make deliveries at multiple locations. Obviously, these two user classes have different objectives and scopes of action. These differences are seldom considered in traffic research since most models aggregate the flow demand in OD matrices and use assignment models to predict the response of all users as if the dynamics of their optimization processes were of the same nature. This work demonstrates that better results can be achieved if the particular features of each user class are included in the models. It potentially improves the estimation of the responses and allows managers to shape their control measures to address specific user needs.
Journal: Transportation Planning and Technology
Pages: 606-624
Issue: 6
Volume: 42
Year: 2019
Month: 8
X-DOI: 10.1080/03081060.2019.1622253
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1622253
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Handle: RePEc:taf:transp:v:42:y:2019:i:6:p:606-624
Template-Type: ReDIF-Article 1.0
Author-Name: Olivier Grunder
Author-X-Name-First: Olivier
Author-X-Name-Last: Grunder
Author-Name: Zakaria Hammoudan
Author-X-Name-First: Zakaria
Author-X-Name-Last: Hammoudan
Author-Name: Benoit Beroule
Author-X-Name-First: Benoit
Author-X-Name-Last: Beroule
Author-Name: Oussama Barakat
Author-X-Name-First: Oussama
Author-X-Name-Last: Barakat
Title: A hybrid Genetic Algorithm approach to minimize the total joint cost of a single-vendor multi-customer integrated scheduling problem
Abstract:
This paper addresses the scheduling of supply chains with interrelated factories consisting of a single vendor and multiple customers. In this research, one transporter is available to deliver jobs from vendor to customers, and the jobs can be processed by batch. The problem studied in this paper focuses on a real-case scheduling problem of a multi-location hospital supplied with a central pharmacy. The objective of this work is to minimize the total cost, while satisfying the customer’s due dates constraints. A mathematical formulation of the problem is given as a Mixed Integer Programming model. Then, a Branch-and-Bound algorithm is proposed as an exact method for solving this problem, a greedy local search is developed as a heuristic approach, and a hybrid Genetic Algorithm is presented as a meta-heuristic. Computation experiments are conducted to highlight the performance of the proposed methods.
Journal: Transportation Planning and Technology
Pages: 625-642
Issue: 6
Volume: 42
Year: 2019
Month: 8
X-DOI: 10.1080/03081060.2019.1622254
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1622254
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Handle: RePEc:taf:transp:v:42:y:2019:i:6:p:625-642
Template-Type: ReDIF-Article 1.0
Author-Name: The Editors
Title: Correction
Journal: Transportation Planning and Technology
Pages: 643-643
Issue: 6
Volume: 42
Year: 2019
Month: 8
X-DOI: 10.1080/03081060.2019.1631576
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1631576
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Handle: RePEc:taf:transp:v:42:y:2019:i:6:p:643-643
Template-Type: ReDIF-Article 1.0
Author-Name: Md Hadiuzzman
Author-X-Name-First: Md
Author-X-Name-Last: Hadiuzzman
Author-Name: Tanmay Das
Author-X-Name-First: Tanmay
Author-X-Name-Last: Das
Author-Name: Md Mehedi Hasnat
Author-X-Name-First: Md Mehedi
Author-X-Name-Last: Hasnat
Author-Name: Sanjana Hossain
Author-X-Name-First: Sanjana
Author-X-Name-Last: Hossain
Author-Name: Sarder Rafee Musabbir
Author-X-Name-First: Sarder
Author-X-Name-Last: Rafee Musabbir
Title: Structural equation modeling of user satisfaction of bus transit service quality based on stated preferences and latent variables
Abstract:
Few studies have been conducted on the service quality (SQ) of bus transit in developing countries. This paper presents a structural equation modeling (SEM) approach to identifying the relationships among major attributes that affect the SQ of bus transit in the city of Dhaka in Bangladesh. Specifically, 22 bus transit SQ attributes, drawn from 655 questionnaires, are used to develop different SEM models for the city. Along with stated preferences, the effect of three latent variables on SQ is analyzed. Among the developed models, the best model is selected by using different statistical approaches. With the best model, selected attributes are rated according to their relative importance on SQ. Acknowledging limited resources of a developing nation, this study gives a clear way ahead to planners, operating companies and transport managers to design appropriate transport policies which will ensure more effective services to current bus users as well as attracting new passengers.
Journal: Transportation Planning and Technology
Pages: 257-277
Issue: 3
Volume: 40
Year: 2017
Month: 4
X-DOI: 10.1080/03081060.2017.1283155
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1283155
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Handle: RePEc:taf:transp:v:40:y:2017:i:3:p:257-277
Template-Type: ReDIF-Article 1.0
Author-Name: Erfan Hassannayebi
Author-X-Name-First: Erfan
Author-X-Name-Last: Hassannayebi
Author-Name: Seyed Hessameddin Zegordi
Author-X-Name-First: Seyed Hessameddin
Author-X-Name-Last: Zegordi
Author-Name: Masoud Yaghini
Author-X-Name-First: Masoud
Author-X-Name-Last: Yaghini
Author-Name: Mohammad Reza Amin-Naseri
Author-X-Name-First: Mohammad Reza
Author-X-Name-Last: Amin-Naseri
Title: Timetable optimization models and methods for minimizing passenger waiting time at public transit terminals
Abstract:
This paper focuses on developing mathematical optimization models for the train timetabling problem with respect to dynamic travel demand and capacity constraints. The train scheduling models presented in this paper aim to minimize passenger waiting times at public transit terminals. Linear and non-linear formulations of the problem are presented. The non-linear formulation is then improved through introducing service frequency variables. Heuristic rules are suggested and embedded in the improved non-linear formulation to reduce the computational time effort needed to find the upper bound. The effectiveness of the proposed train timetabling models is illustrated through the application to an underground urban rail line in the city of Tehran. The results demonstrate the effectiveness of the proposed demand-oriented train timetabling models, in terms of decreasing passenger waiting times. Compared to the baseline and regular timetables, total waiting time is reduced by 6.36% and 10.55% respectively, through the proposed mathematical optimization models.
Journal: Transportation Planning and Technology
Pages: 278-304
Issue: 3
Volume: 40
Year: 2017
Month: 4
X-DOI: 10.1080/03081060.2017.1283156
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1283156
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Handle: RePEc:taf:transp:v:40:y:2017:i:3:p:278-304
Template-Type: ReDIF-Article 1.0
Author-Name: Spiros M. Karakostas
Author-X-Name-First: Spiros M.
Author-X-Name-Last: Karakostas
Title: Bridging the gap between multi-objective optimization and spatial planning: a new post-processing methodology capturing the optimum allocation of land uses against established transportation infrastructure
Abstract:
The optimal allocation of multiple land uses constitutes a complex multi-objective optimization problem with unknown feasible objective space and optimal planning alternatives. Despite the effectiveness of evolutionary algorithms to capture the underlying Pareto set of optimum maps, land use planners are bound to pursue the best possible spatial allocation of each use within an enormous population of non-dominated solutions. This article presents a novel post-processing methodology enhancing the comparative evaluation of alternative planning approaches without making any assumptions about the (relative) importance of each objective function. The proposed consolidated post-processing module is applied in a land use planning paradigm, revealing: (a) the existence of substantial planning guidelines whose validity is not affected by the relative significance of each criterion and (b) the variable planning component emerging from the (varying) relative importance of objective functions. Such planning feedback could not be extracted by the exhaustive review of non-dominated maps.
Journal: Transportation Planning and Technology
Pages: 305-326
Issue: 3
Volume: 40
Year: 2017
Month: 4
X-DOI: 10.1080/03081060.2017.1283157
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1283157
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Handle: RePEc:taf:transp:v:40:y:2017:i:3:p:305-326
Template-Type: ReDIF-Article 1.0
Author-Name: Diomo Motuba
Author-X-Name-First: Diomo
Author-X-Name-Last: Motuba
Author-Name: Denver Tolliver
Author-X-Name-First: Denver
Author-X-Name-Last: Tolliver
Title: Truck trip generation in small- and medium-sized urban areas
Abstract:
This paper describes procedures to develop truck trip generation (TTG) rates for small- and medium-sized urban areas and its implications. Ordinary least squares models are used to develop separate truck production and attraction equations with the number of employees as the independent variable for three industrial groups – retail, transportation and warehousing, and manufacturing. Results from this research indicate that number of employees is a statistically significant predictor, and has significant explanatory power in predicting the number of truck trips produced and attracted. The rates developed in this study are also found to be significantly different from rates developed in other studies with the implication that caution needs to be taken when transferring TTG rates. The rates are applied in a travel demand model as the initial step of incorporating truck traffic into the modeling process.
Journal: Transportation Planning and Technology
Pages: 327-339
Issue: 3
Volume: 40
Year: 2017
Month: 4
X-DOI: 10.1080/03081060.2017.1283158
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1283158
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Handle: RePEc:taf:transp:v:40:y:2017:i:3:p:327-339
Template-Type: ReDIF-Article 1.0
Author-Name: Nicole Ronald
Author-X-Name-First: Nicole
Author-X-Name-Last: Ronald
Author-Name: Russell Thompson
Author-X-Name-First: Russell
Author-X-Name-Last: Thompson
Author-Name: Stephan Winter
Author-X-Name-First: Stephan
Author-X-Name-Last: Winter
Title: Simulating ad-hoc demand-responsive transportation: a comparison of three approaches
Abstract:
Transport models are used to evaluate new infrastructure and public transport services, varied levels of demand, and new ideas for demand management. Exploring these proposals virtually is easier than implementation and testing in situ. However, existing models are based around traditional forms of transportation. As part of a feature analysis using a case study approach, three different simulation packages (a simple custom-developed package, traffic microsimulation, and agent-based simulation) are used to develop and demonstrate simulations of demand-responsive transportation (DRT) and analyze the advantages and disadvantages of each simulation approach for evaluating DRT. While the simulations display some relational replication (meaning they produce similar relational patterns with respect to certain variables), they do not show distributional replication (that is, the value of the results is not statistically similar), meaning that under- or over-estimation of predicted travel could occur. Recommendations for the application of each modeling approach are made.
Journal: Transportation Planning and Technology
Pages: 340-358
Issue: 3
Volume: 40
Year: 2017
Month: 4
X-DOI: 10.1080/03081060.2017.1283159
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1283159
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Handle: RePEc:taf:transp:v:40:y:2017:i:3:p:340-358
Template-Type: ReDIF-Article 1.0
Author-Name: Ahmad Sugiana
Author-X-Name-First: Ahmad
Author-X-Name-Last: Sugiana
Author-Name: Mulyo Sanyoto
Author-X-Name-First: Mulyo
Author-X-Name-Last: Sanyoto
Author-Name: Parwito
Author-X-Name-First:
Author-X-Name-Last: Parwito
Author-Name: M. Rachmat Gunawan
Author-X-Name-First: M. Rachmat
Author-X-Name-Last: Gunawan
Author-Name: Key Seo Lee
Author-X-Name-First: Key
Author-X-Name-Last: Seo Lee
Title: Intermittent automatic train protection using an infrared system
Abstract:
Automatic train protection (ATP) is a vital part of the signalling system that prevents collisions between trains, especially on densely trafficked lines. Conventionally, ATP uses a transponder to communicate between an onboard train device and a trackside device. In Indonesia, ATP is not yet implemented and all trains are currently operated by drivers. It has now become a necessity to install ATP in Indonesia in order to protect train operations. However, as in many tropical and developing countries there are some environmental problems, especially heavy rain, as well as the theft of trackside equipment that influences performance. Installed trackside devices must therefore meet certain criteria such as low-cost configuration, minimalized devices on the track, ease of maintenance, etc. To address the necessity of ATP and to meet these criteria for trackside devices, we develop ATP using an infrared system. This type of ATP – the intermittent ATP system – consists of onboard devices and infrared sensors as trackside equipment. This approach to ATP offers a cost-effective solution and ensures the safety of train movements.
Journal: Transportation Planning and Technology
Pages: 359-373
Issue: 3
Volume: 40
Year: 2017
Month: 4
X-DOI: 10.1080/03081060.2017.1283160
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1283160
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Handle: RePEc:taf:transp:v:40:y:2017:i:3:p:359-373
Template-Type: ReDIF-Article 1.0
Author-Name: Mihai Tivadar
Author-X-Name-First: Mihai
Author-X-Name-Last: Tivadar
Author-Name: Odile Heddebaut
Author-X-Name-First: Odile
Author-X-Name-Last: Heddebaut
Title: A commuting model for the analysis of the impacts of a tramway project: application to the Lens area
Abstract:
Road congestion is not only an issue for major European urban agglomerations, but also for smaller ones. It is also the case of the Lens urban area, where car use is much higher than the average for medium-sized urban agglomerations in France. Local authorities put forward tramway projects to deal with the strongly negative externalities of congestion: travel time losses and pollution. To analyse its medium-term impact, we have developed a commuting with congestion model, inspired by the four-step traditional model, but with data made available from an origin–destination matrix. The results are encouraging but insufficient, and it is necessary to adopt supplementary measures in order to retrieve and justify the sizeable investments needed. Some measures prove to be very efficient, such as parking fees and urban tolls. Other measures, such as the subsidization of public transport, are partially efficient since they have an impact mainly on intra-urban commutes.
Journal: Transportation Planning and Technology
Pages: 374-392
Issue: 3
Volume: 40
Year: 2017
Month: 4
X-DOI: 10.1080/03081060.2017.1283161
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1283161
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Handle: RePEc:taf:transp:v:40:y:2017:i:3:p:374-392
Template-Type: ReDIF-Article 1.0
Author-Name: Ipek N. Sener
Author-X-Name-First: Ipek N.
Author-X-Name-Last: Sener
Author-Name: Johanna Zmud
Author-X-Name-First: Johanna
Author-X-Name-Last: Zmud
Title: Chipping away at uncertainty: intent to use self-driving vehicles and the role of ride-hailing
Abstract:
The advent of automated vehicles could be transformative to the existing transportation system; however, the ways in which changes could happen are uncertain. This research was aimed at contributing to the literature of acceptance of self-driving vehicles and the role of ride-hailing in this decision-making process. An online survey was implemented to collect information for two distinct segments of the population: ride-hailing users and non-ride-hailing users. The data were examined through bivariate descriptive analysis and multivariate models. The results provided several insights. The overall intent to use was found to be higher among users of ride-hailing services than among non-users of such services. The results highlighted significant association of several variables with intent to use, including demographics, residential characteristics, technology and shared mobility use factors, and attitudes and perceptions. The results of this research could inform several important policy issues at the intersection of emerging technology and mobility options.
Journal: Transportation Planning and Technology
Pages: 645-661
Issue: 7
Volume: 42
Year: 2019
Month: 10
X-DOI: 10.1080/03081060.2019.1650423
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1650423
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Handle: RePEc:taf:transp:v:42:y:2019:i:7:p:645-661
Template-Type: ReDIF-Article 1.0
Author-Name: Bai Zhu
Author-X-Name-First: Bai
Author-X-Name-Last: Zhu
Author-Name: Huang Mingxia
Author-X-Name-First: Huang
Author-X-Name-Last: Mingxia
Author-Name: Wu Biao
Author-X-Name-First: Wu
Author-X-Name-Last: Biao
Author-Name: Bian Shuai
Author-X-Name-First: Bian
Author-X-Name-Last: Shuai
Title: A data envelopment analysis model for evaluating the performance of taxi operators: a case study in Harbin, China
Abstract:
This paper measures the performance of taxi operators using data envelopment analysis (DEA) and the improvement of performance based on benchmarks. This includes basic DEA models and a cross efficiency model. In the present work, a sample set of 20 taxi operators are considered, and an evaluation indicator framework is constructed, which mainly involves the identification of decision-making units (DMUs) and the determination of input-output variables. The combined results of multiple DEA models are used to evaluate the performance of taxi operators in a case study of Harbin. The results highlight the significance of the combined application of multiple DEA models, especially a cross-efficiency model that can obtain more objective efficiency values. Finally, the benchmarking method is used to capture the achievements of best-performing operators and provide valuable improvement recommendations for inefficient operators. Conclusions provide a suitable basis for the operation and management of the taxi market.
Journal: Transportation Planning and Technology
Pages: 662-678
Issue: 7
Volume: 42
Year: 2019
Month: 10
X-DOI: 10.1080/03081060.2019.1650425
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1650425
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Handle: RePEc:taf:transp:v:42:y:2019:i:7:p:662-678
Template-Type: ReDIF-Article 1.0
Author-Name: Timotheus Klein
Author-X-Name-First: Timotheus
Author-X-Name-Last: Klein
Author-Name: Sonja Löwa
Author-X-Name-First: Sonja
Author-X-Name-Last: Löwa
Title: Applying measures of modelling quality to a national time series: a benchmark for transport demand models
Abstract:
In current urban planning practice, macroscopic transport demand and assignment models are essential for the evaluation of mid- and long-term land use developments and infrastructure investments. The credibility of their projections strongly depends on their ability to reproduce present day traffic volumes. Obviously, a simplified model of reality will display some shortcomings, and the effect of these is asserted by quality measures that quantify the divergence from observed traffic volumes. There is, however, only rough guidance regarding acceptable ranges of these measures. Most of the literature on this subject approach these ranges from below, by discussing measures attained by operational models and using these as a benchmark, or by using the adverse effects of modelling errors to derive a minimum quality level. On the contrary, this study suggests upper limits for quality measures by analysing year-on-year variations in traffic volumes that result from changing land use and infrastructure.
Journal: Transportation Planning and Technology
Pages: 679-695
Issue: 7
Volume: 42
Year: 2019
Month: 10
X-DOI: 10.1080/03081060.2019.1650426
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1650426
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Handle: RePEc:taf:transp:v:42:y:2019:i:7:p:679-695
Template-Type: ReDIF-Article 1.0
Author-Name: Xiuxia Zhang
Author-X-Name-First: Xiuxia
Author-X-Name-Last: Zhang
Author-Name: Qingnian Zhang
Author-X-Name-First: Qingnian
Author-X-Name-Last: Zhang
Author-Name: Tingting Sun
Author-X-Name-First: Tingting
Author-X-Name-Last: Sun
Title: Performance evaluation and obstacle factors analysis of urban public transport priority
Abstract:
Through the comprehensive consideration of four subsystems – overall development level, infrastructure construction, public transportation service level and policy support – an index system of public transport priority performance evaluation is established. A performance evaluation of bus priority implementation in Wuhan City from 2007 to 2016 is carried out by applying the difference coefficient CRITIC-TOPSIS model. The obstacle factor model is also used to diagnose the factors affecting the priority performance of urban public transport. The research results show that, during this decade, the comprehensive performance of Wuhan City’s public transport priority developed from poor to medium, then to good and finally to excellent. The overall development level and infrastructure construction performance subsystems have the highest obstacle degree, followed by public transportation service levels and policy support performance subsystems. The research idea and method of this paper provide a realistic basis for promoting the priority performance of urban public transport.
Journal: Transportation Planning and Technology
Pages: 696-713
Issue: 7
Volume: 42
Year: 2019
Month: 10
X-DOI: 10.1080/03081060.2019.1650433
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1650433
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Handle: RePEc:taf:transp:v:42:y:2019:i:7:p:696-713
Template-Type: ReDIF-Article 1.0
Author-Name: Mojahid Saeed Osman
Author-X-Name-First: Mojahid
Author-X-Name-Last: Saeed Osman
Title: Uncertainty modeling for bus selection and allocation in a private transportation system
Abstract:
This paper describes the development of a probabilistic formulation that provides global optimum selection and allocation of a fleet of buses in a private transportation system of an organization where a third party is hired to provide transportation for its employees and their dependents. In this private transportation system, a fleet of buses is to be selected and allocated to serve employees and their independents on different prescheduled trips along different routes from the organization’s headquarters and residential compound where round-trip times of scheduled trips are subject to uncertainty due to random delays. We propose a probabilistic approach based on 0-1 integer programming for the selection and allocation to determine the optimal number and size of buses assigned to a set of prescheduled trips in a particular time interval. Examples and a case study are presented to illustrate the applicability and suitability of the proposed approach.
Journal: Transportation Planning and Technology
Pages: 714-728
Issue: 7
Volume: 42
Year: 2019
Month: 10
X-DOI: 10.1080/03081060.2019.1650435
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1650435
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Handle: RePEc:taf:transp:v:42:y:2019:i:7:p:714-728
Template-Type: ReDIF-Article 1.0
Author-Name: Athina Tsirimpa
Author-X-Name-First: Athina
Author-X-Name-Last: Tsirimpa
Author-Name: Amalia Polydoropoulou
Author-X-Name-First: Amalia
Author-X-Name-Last: Polydoropoulou
Author-Name: Ioannis Tsouros
Author-X-Name-First: Ioannis
Author-X-Name-Last: Tsouros
Title: Route choice preferences: insights from Portuguese freight forwarders and truck drivers
Abstract:
Exploring route choice in the context of tolled alternatives can support road operators to achieve better utilization of the infrastructure, as well as maximizing revenue collection. The research presented in this paper is conducted in the context of OPTIMUM, a European Union-funded project. The research objectives include a two-component system of models that proactively calculates commercial vehicles’ toll prices. The component presented in this paper rests on the development of a route choice model that estimates the probabilities of using two alternative routes (toll road vs. national road), based on route attributes and user characteristics. To explore the usefulness of the proposed methodology a case study involving 50 truck drivers and 25 freight operators was conducted in Portugal between January 2016 and November 2017. Results from the route choice model reveal interesting insights about the role of incentives in the choice of toll roads, the perspectives of the different decision-makers and produce Values of Time for the study area.
Journal: Transportation Planning and Technology
Pages: 729-738
Issue: 7
Volume: 42
Year: 2019
Month: 10
X-DOI: 10.1080/03081060.2019.1650438
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1650438
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Handle: RePEc:taf:transp:v:42:y:2019:i:7:p:729-738
Template-Type: ReDIF-Article 1.0
Author-Name: Saeed Asadi Bagloee
Author-X-Name-First: Saeed
Author-X-Name-Last: Asadi Bagloee
Author-Name: Mitra Heshmati
Author-X-Name-First: Mitra
Author-X-Name-Last: Heshmati
Author-Name: Madjid Tavana
Author-X-Name-First: Madjid
Author-X-Name-Last: Tavana
Author-Name: Debora Di Caprio
Author-X-Name-First: Debora
Author-X-Name-Last: Di Caprio
Title: A logit-based model for measuring the effects of transportation infrastructure on land value
Abstract:
Mutual interactions between transportation and land use have long been debated. Despite progress made in computational technology, the study of these interactions is not adequately developed. The most important aspect of such interactions is given by the changes in land values due to changes in transportation infrastructures. We consider the behavioural features of these interactions along with the constraints on the land and/or zoning restrictions and propose a reliable model for the first time to predict land value changes with respect to changes in transportation facilities and accessibility. The proposed model is a logit-based mathematical programming methodology where the relative price of land is predicted with respect to transportation accessibility, neighbourhood amenities, location premium, availability of land, and zoning regulations. A real-world case study is used to exhibit the applicability of the proposed methodology and demonstrate the efficacy of the algorithms and procedures.
Journal: Transportation Planning and Technology
Pages: 143-166
Issue: 2
Volume: 40
Year: 2017
Month: 2
X-DOI: 10.1080/03081060.2016.1266164
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1266164
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Handle: RePEc:taf:transp:v:40:y:2017:i:2:p:143-166
Template-Type: ReDIF-Article 1.0
Author-Name: Celine Grange-Faivre
Author-X-Name-First: Celine
Author-X-Name-Last: Grange-Faivre
Author-Name: Claude Marin-Lamellet
Author-X-Name-First: Claude
Author-X-Name-Last: Marin-Lamellet
Author-Name: Aline Alauzet
Author-X-Name-First: Aline
Author-X-Name-Last: Alauzet
Title: Maximum acceptable gap between urban-guided transport vehicles and platforms for persons with disabilities: the findings of an experimental study conducted to inform policy decisions
Abstract:
The French ministry responsible for transport has commissioned a study aimed at providing data to determine the maximum gap size between vehicle and platform for guided transport vehicles, which would become a legal requirement. Specific experimental conditions were created, with a physical mock-up simulating a tramway and a platform and providing several gap configurations (between 20 and 50 mm for the horizontal gap and between 20 and 75 mm for the vertical step), and an experimental design based on the negotiation of gaps by wheelchairs users (mainly manual or electric powered). The experiment was conducted with 46 participants with different functional abilities. Data were collected on performance and gap negotiation time. The results of this study indicate that despite the failures observed for the 50 × 50 mm gap size during the experiment, most wheelchair users who took part in the test have successfully negotiated this gap.
Journal: Transportation Planning and Technology
Pages: 167-181
Issue: 2
Volume: 40
Year: 2017
Month: 2
X-DOI: 10.1080/03081060.2016.1266165
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1266165
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Handle: RePEc:taf:transp:v:40:y:2017:i:2:p:167-181
Template-Type: ReDIF-Article 1.0
Author-Name: Chao Lu
Author-X-Name-First: Chao
Author-X-Name-Last: Lu
Author-Name: Jie Huang
Author-X-Name-First: Jie
Author-X-Name-Last: Huang
Title: A self-learning system for local ramp metering with queue management
Abstract:
This paper presents the design and evaluation process of a self-learning system for local ramp metering control. This system is developed on the basis of reinforcement learning (RL) and can deal with the problem of on-ramp queue management through a continuous learning process. A general framework of the system design including the definition of RL elements and an algorithm that can accomplish the learning process is proposed. Simulation tests are carried out to evaluate the performance of the new system. In terms of the total time spent by road users, the new system can achieve a 30% reduction from the situation of no control, a result which is competitive with the widely accepted algorithm ALINEA. Meanwhile, simulation results show that the new system can keep on-ramp queues strictly under a series of pre-specified constraints, which proves its capability of managing on-ramp queues.
Journal: Transportation Planning and Technology
Pages: 182-198
Issue: 2
Volume: 40
Year: 2017
Month: 2
X-DOI: 10.1080/03081060.2016.1266166
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1266166
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Handle: RePEc:taf:transp:v:40:y:2017:i:2:p:182-198
Template-Type: ReDIF-Article 1.0
Author-Name: Hailiang Xiao
Author-X-Name-First: Hailiang
Author-X-Name-Last: Xiao
Author-Name: Jianzhi Gao
Author-X-Name-First: Jianzhi
Author-X-Name-Last: Gao
Author-Name: Zhiyun Zou
Author-X-Name-First: Zhiyun
Author-X-Name-Last: Zou
Title: Reserve capacity model based on variable demand for land-use development control
Abstract:
In this paper, the concept of reserve capacity has been extended to zone level to measure the land-use development potentiality of each trip generation zone. Bi-level programing models are proposed to determine the signal setting of individual intersections for maximizing possible increase in total travel demand and the corresponding reserve capacity for each zone. The change of the origin–destination pattern with the variation of upper level decision variables is presented through the combined distribution/assignment model under user equilibrium conditions. Both singly constrained and doubly constrained combined models are considered for different trip purposes and data information. Furthermore, we have introduced the continuous network design problem by increasing road capacity and examined its effect on the land-use development potentiality of trip generation zone. A numerical example is presented to illustrate the application of the models and how a genetic algorithm is applied to solve the problem.
Journal: Transportation Planning and Technology
Pages: 199-212
Issue: 2
Volume: 40
Year: 2017
Month: 2
X-DOI: 10.1080/03081060.2016.1266167
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1266167
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Handle: RePEc:taf:transp:v:40:y:2017:i:2:p:199-212
Template-Type: ReDIF-Article 1.0
Author-Name: Hongtai Yang
Author-X-Name-First: Hongtai
Author-X-Name-Last: Yang
Author-Name: Christopher R. Cherry
Author-X-Name-First: Christopher R.
Author-X-Name-Last: Cherry
Title: Use characteristics and demographics of rural transit riders: a case study in Tennessee
Abstract:
Intercity bus (ICB), deviated fixed route transit (DFRT) and demand responsive transit (DRT) are three major modes of rural public transportation. This paper focuses on the characteristics and motivations of DFRT and DRT riders, compared to non-riders, in Tennessee. A rural DFRT rider survey, a rural DRT rider survey and a rural (non-rider) resident survey were performed. It is found that DFRT and DRT riders have similar demographics to ICB riders. The most common trip purpose for DFRT and DRT passengers is medical care, which is different from ICB trips. Ninety percent of the riders have difficulty finding alternative transportation modes, suggesting they are captive riders, not choice riders. Regression results indicate that people choosing transit modes tend to have lower personal and household income, own fewer cars, to not be homeowners, and be of non-white race. Rural residents who receive more education are more likely to be open-minded to use rural transit.
Journal: Transportation Planning and Technology
Pages: 213-227
Issue: 2
Volume: 40
Year: 2017
Month: 2
X-DOI: 10.1080/03081060.2016.1266168
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1266168
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Handle: RePEc:taf:transp:v:40:y:2017:i:2:p:213-227
Template-Type: ReDIF-Article 1.0
Author-Name: Dejan Zlatkovic
Author-X-Name-First: Dejan
Author-X-Name-Last: Zlatkovic
Author-Name: Nevena Vajdic
Author-X-Name-First: Nevena
Author-X-Name-Last: Vajdic
Author-Name: Slaven Tica
Author-X-Name-First: Slaven
Author-X-Name-Last: Tica
Author-Name: Goran Mladenovic
Author-X-Name-First: Goran
Author-X-Name-Last: Mladenovic
Author-Name: Cesar Queiroz
Author-X-Name-First: Cesar
Author-X-Name-Last: Queiroz
Title: Remuneration models and revenue risk mitigation in road public–private partnership projects – a case study from Serbia
Abstract:
As a consequence of renewed interest in attracting private financing for infrastructure investments, public–private partnership (PPP) arrangements are mostly seen as a suitable mechanism for ensuring sound and quicker delivery of transport infrastructure projects. However, a general concern is that expectations of mobilizing private-sector funds have been overestimated in a number of cases. The purpose of this paper is to contribute to the risk analysis of transport PPP projects with substantial exogenous demand risk which could serve as a rationale for choosing the appropriate PPP model. The objective of this paper is to construct an analytical cash flow-based project model to facilitate the choice of the remuneration mechanism suitable for both private investors and public sector. The model provides an indication whether the project should be implemented as a ‘users pay’, a hybrid or an ‘annuity’ PPP model. The proposed methodology is illustrated using a case study from Serbia.
Journal: Transportation Planning and Technology
Pages: 228-241
Issue: 2
Volume: 40
Year: 2017
Month: 2
X-DOI: 10.1080/03081060.2016.1266169
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1266169
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Handle: RePEc:taf:transp:v:40:y:2017:i:2:p:228-241
Template-Type: ReDIF-Article 1.0
Author-Name: Fang Zong
Author-X-Name-First: Fang
Author-X-Name-Last: Zong
Author-Name: Yixin Yuan
Author-X-Name-First: Yixin
Author-X-Name-Last: Yuan
Author-Name: Jianfeng Liu
Author-X-Name-First: Jianfeng
Author-X-Name-Last: Liu
Author-Name: Yu Bai
Author-X-Name-First: Yu
Author-X-Name-Last: Bai
Author-Name: Yanan He
Author-X-Name-First: Yanan
Author-X-Name-Last: He
Title: Identifying travel mode with GPS data
Abstract:
Travel mode identification is an essential step in travel information detection with global positioning system (GPS) survey data. This paper presents a hybrid procedure for mode identification using large-scale GPS survey data collected in Beijing in 2010. In a first step, subway trips were detected by applying a GPS/geographic information system (GIS) algorithm and a multinomial logit model. A comparison of the identification results reveals that the GPS/GIS method provides higher accuracy. Then, the modes of walking, bicycle, car and bus were determined using a nested logit model. The combined success rate of the hybrid procedure was 86%. These findings can be used to identify travel modes based on GPS survey data, which will significantly improve the efficiency and accuracy of travel surveys and data analysis. By providing crucial travel information, the results also contribute to modeling and analyzing travel behaviors and are readily applicable to a wide range of transportation practices.
Journal: Transportation Planning and Technology
Pages: 242-255
Issue: 2
Volume: 40
Year: 2017
Month: 2
X-DOI: 10.1080/03081060.2016.1266170
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1266170
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Handle: RePEc:taf:transp:v:40:y:2017:i:2:p:242-255
Template-Type: ReDIF-Article 1.0
Author-Name: Brian Caulfield
Author-X-Name-First: Brian
Author-X-Name-Last: Caulfield
Author-Name: Stephen Ison
Author-X-Name-First: Stephen
Author-X-Name-Last: Ison
Title: Universities’ Transport Study Group Annual Conference 2017
Journal: Transportation Planning and Technology
Pages: 1-2
Issue: 1
Volume: 41
Year: 2018
Month: 1
X-DOI: 10.1080/03081060.2018.1402741
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1402741
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Handle: RePEc:taf:transp:v:41:y:2018:i:1:p:1-2
Template-Type: ReDIF-Article 1.0
Author-Name: Judit Guimera Busquets
Author-X-Name-First: Judit Guimera
Author-X-Name-Last: Busquets
Author-Name: Eduardo Alonso
Author-X-Name-First: Eduardo
Author-X-Name-Last: Alonso
Author-Name: Antony D. Evans
Author-X-Name-First: Antony D.
Author-X-Name-Last: Evans
Title: Air itinerary shares estimation using multinomial logit models
Abstract:
The main goal of this study is the development of an aggregate air itinerary market share model. In order to achieve this, multinomial logit models are applied to distribute the city-pair passenger demand across the available itineraries. The models are developed at an aggregate level using open-source booking data for a large group of city-pairs within the US air transport system. Although there is a growing trend in the use of discrete choice models in the aviation industry, existing air itinerary share models are mostly focused on supporting carrier decision-making. Consequently, those studies define itineraries at a more disaggregate level using variables describing airlines and time preferences. In this study, we define itineraries at a more aggregate level, i.e. as a combination of flight segments between an origin and destination, without further insight into service preferences. Although results show some potential for this approach, there are challenges associated with prediction performance and computational intensity.
Journal: Transportation Planning and Technology
Pages: 3-16
Issue: 1
Volume: 41
Year: 2018
Month: 1
X-DOI: 10.1080/03081060.2018.1402742
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1402742
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Handle: RePEc:taf:transp:v:41:y:2018:i:1:p:3-16
Template-Type: ReDIF-Article 1.0
Author-Name: Shreya Dey
Author-X-Name-First: Shreya
Author-X-Name-Last: Dey
Author-Name: Brian Caulfield
Author-X-Name-First: Brian
Author-X-Name-Last: Caulfield
Author-Name: Bidisha Ghosh
Author-X-Name-First: Bidisha
Author-X-Name-Last: Ghosh
Title: The potential health, financial and environmental impacts of in Ireland
Abstract:
The transportation sector is the greatest contributor to air pollution. With the booming demand for transportation, reducing the pollution has become one of the main concerns of researchers. EPA emission standards are designed to protect air quality and human health. Diesel Euro 5 NOx has become a matter of disquiet since it has been found that NOx emissions are significantly exceeding the standard limit. This paper presents a study to estimate the disparity in real-world NOx emission levels resulted from all diesel Euro 5 passenger cars (PC) and light commercial vehicles (LCV) that are present in Ireland. NOx emission levels calculated based on laboratory test results, on-road measurements and the COPERT 4 model were compared. Additionally, NOx emission levels from the defective Volkswagen models have been calculated to quantify the effect of the Volkswagen scandal on Ireland. Impacts of excess NOx emissions on health and cost have also been presented.
Journal: Transportation Planning and Technology
Pages: 17-36
Issue: 1
Volume: 41
Year: 2018
Month: 1
X-DOI: 10.1080/03081060.2018.1402743
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1402743
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Handle: RePEc:taf:transp:v:41:y:2018:i:1:p:17-36
Template-Type: ReDIF-Article 1.0
Author-Name: Nicholas B. Taylor
Author-X-Name-First: Nicholas B.
Author-X-Name-Last: Taylor
Title: Predicting queue variability to enable analysis of overload risk
Abstract:
Predicting the risk of traffic demands and delays exceeding critical limits at road junctions, airports, hospitals, etc., requires knowing how both mean and variance of queue size vary over time. Microscopic simulation can explore variability but is computationally demanding and gives only sample results. A computationally efficient approximation to the mean is used in many modelling tools, but only empirical extensions for variance in particular situations have been available. The paper derives theoretical formulae for time-dependent and equilibrium variance, believed to be novel and to apply generally to queues covered by the Pollaczek–Khinchin mean formula, and offering possible structural insights. These are applied in an extended approximation giving mutually consistent mean and variance estimates with improved accuracy. Tests on oversaturated peak demand cases are compared with Markov probabilistic simulation, demonstrating accuracy (R2 > 0.99) for typical random, priority-like (M/M/1) and traffic-signal-like (M/D/1) queues. Implications for risk analysis, planning and policy are considered.
Journal: Transportation Planning and Technology
Pages: 37-57
Issue: 1
Volume: 41
Year: 2018
Month: 1
X-DOI: 10.1080/03081060.2018.1402744
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1402744
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Handle: RePEc:taf:transp:v:41:y:2018:i:1:p:37-57
Template-Type: ReDIF-Article 1.0
Author-Name: Yuanying Zhao
Author-X-Name-First: Yuanying
Author-X-Name-Last: Zhao
Author-Name: Jacek Pawlak
Author-X-Name-First: Jacek
Author-X-Name-Last: Pawlak
Author-Name: John W. Polak
Author-X-Name-First: John W.
Author-X-Name-Last: Polak
Title: Inverse discrete choice modelling: theoretical and practical considerations for imputing respondent attributes from the patterns of observed choices
Abstract:
The growing availability of geotagged big data has stimulated substantial discussion regarding their usability in detailed travel behaviour analysis. Whilst providing a large amount of spatio-temporal information about travel behaviour, these data typically lack semantic content characterising travellers and choice alternatives. The inverse discrete choice modelling (IDCM) approach presented in this paper proposes that discrete choice models (DCMs) can be statistically inverted and used to attach additional variables from observations of travel choices. Suitability of the approach for inferring socioeconomic attributes of travellers is explored using mode choice decisions observed in London Travel Demand Survey. Performance of the IDCM is investigated with respect to the type of variable, the explanatory power of the imputed variable, and the type of estimator used. This method is a significant contribution towards establishing the extent to which DCMs can be credibly applied for semantic enrichment of passively collected big data sets while preserving privacy.
Journal: Transportation Planning and Technology
Pages: 58-79
Issue: 1
Volume: 41
Year: 2018
Month: 1
X-DOI: 10.1080/03081060.2018.1402745
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1402745
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Handle: RePEc:taf:transp:v:41:y:2018:i:1:p:58-79
Template-Type: ReDIF-Article 1.0
Author-Name: Marcus A. Young
Author-X-Name-First: Marcus A.
Author-X-Name-Last: Young
Author-Name: Simon P. Blainey
Author-X-Name-First: Simon P.
Author-X-Name-Last: Blainey
Title: Development of railway station choice models to improve the representation of station catchments in rail demand models
Abstract:
This paper describes the development of railway station choice models suitable for defining probabilistic station catchments. These catchments can then be incorporated into the aggregate demand models typically used to forecast demand for new rail stations. Revealed preference passenger survey data obtained from the Welsh and Scottish Governments was used for model calibration. Techniques were developed to identify trip origins and destinations from incomplete address information and to automatically validate reported trips. A bespoke trip planner was used to derive mode-specific station access variables and train leg measures. The results from a number of multinomial logit and random parameter (mixed) logit models are presented and their predictive performance assessed. The models were found to have substantially superior predictive accuracy compared to the base model (which assumes the nearest station has a probability of one), indicating that their incorporation into passenger demand forecasting methods has the potential to significantly improve model predictive performance.
Journal: Transportation Planning and Technology
Pages: 80-103
Issue: 1
Volume: 41
Year: 2018
Month: 1
X-DOI: 10.1080/03081060.2018.1403745
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1403745
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Handle: RePEc:taf:transp:v:41:y:2018:i:1:p:80-103
Template-Type: ReDIF-Article 1.0
Author-Name: Xiaolin Meng
Author-X-Name-First: Xiaolin
Author-X-Name-Last: Meng
Author-Name: Simon Roberts
Author-X-Name-First: Simon
Author-X-Name-Last: Roberts
Author-Name: Yijian Cui
Author-X-Name-First: Yijian
Author-X-Name-Last: Cui
Author-Name: Yang Gao
Author-X-Name-First: Yang
Author-X-Name-Last: Gao
Author-Name: Qusen Chen
Author-X-Name-First: Qusen
Author-X-Name-Last: Chen
Author-Name: Chang Xu
Author-X-Name-First: Chang
Author-X-Name-Last: Xu
Author-Name: Qiyi He
Author-X-Name-First: Qiyi
Author-X-Name-Last: He
Author-Name: Sarah Sharples
Author-X-Name-First: Sarah
Author-X-Name-Last: Sharples
Author-Name: Paul Bhatia
Author-X-Name-First: Paul
Author-X-Name-Last: Bhatia
Title: Required navigation performance for connected and autonomous vehicles: where are we now and where are we going?
Abstract:
While automotive original equipment manufacturers and IT companies are developing and demonstrating self-driving cars, true autonomy will not be realised in the near future due in part to the technology readiness level of the existing systems as well as issues of ethics, security, governance and standards surrounding the implementation of autonomy for road transport. However, advances in cellular phones and networks, satellite-based positioning and communications, cloud computing, combined with a rise in the volumes of available data, allied with a reduction in their costs, offer the very real possibility of connecting vehicles, one to another and to smart city infrastructure as part of the Internet of Things (IoT). Data from connected vehicles, when combined with other information, may provide valuable intelligence to traffic managers and other stakeholders via cooperative intelligent transport system (C-ITS) platforms. Nevertheless, many issues face the implementation of a truly connected IoT in general and C-ITS in particular.
Journal: Transportation Planning and Technology
Pages: 104-118
Issue: 1
Volume: 41
Year: 2018
Month: 1
X-DOI: 10.1080/03081060.2018.1402747
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1402747
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Handle: RePEc:taf:transp:v:41:y:2018:i:1:p:104-118
Template-Type: ReDIF-Article 1.0
Author-Name: Ron Dalumpines
Author-X-Name-First: Ron
Author-X-Name-Last: Dalumpines
Author-Name: Darren M. Scott
Author-X-Name-First: Darren M.
Author-X-Name-Last: Scott
Title: Making mode detection transferable: extracting activity and travel episodes from GPS data using the multinomial logit model and Python
Abstract:
The increasing popularity of global positioning systems (GPSs) has prompted transportation researchers to develop methods that can automatically extract and classify episodes from GPS data. This paper presents a transferable and efficient method of extracting and classifying activity episodes from GPS data, without additional information. The proposed method, developed using Python®, introduces the use of the multinomial logit (MNL) model in classifying extracted episodes into different types: stop, car, walk, bus, and other (travel) episodes. The proposed method is demonstrated using a GPS dataset from the Space-Time Activity Research project in Halifax, Canada. The GPS data consisted of 5127 person-days (about 47 million points). With input requirements directly derived from GPS data and the efficiency provided by the MNL model, the proposed method looks promising as a transferable and efficient method of extracting activity and travel episodes from GPS data.
Journal: Transportation Planning and Technology
Pages: 523-539
Issue: 5
Volume: 40
Year: 2017
Month: 7
X-DOI: 10.1080/03081060.2017.1314502
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1314502
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Handle: RePEc:taf:transp:v:40:y:2017:i:5:p:523-539
Template-Type: ReDIF-Article 1.0
Author-Name: Mohammad M. Molla
Author-X-Name-First: Mohammad M.
Author-X-Name-Last: Molla
Author-Name: Matthew L. Stone
Author-X-Name-First: Matthew L.
Author-X-Name-Last: Stone
Author-Name: Diomo Motuba
Author-X-Name-First: Diomo
Author-X-Name-Last: Motuba
Title: Developing an activity-based trip generation model for small/medium size planning agencies
Abstract:
The primary shortcoming of traditional four-step models is that they cannot capture derived travel demand behaviors. However, travel demand modeling (TDM) is an essential input for urban transportation planning. TDM needs to be highly precise and accurate by integrating the accurate base year estimation along with suitable alternatives. Currently, activity-based models (ABMs) have been developed mostly for large metropolitan planning organizations (MPO), whereas smaller/medium-sized MPOs typically lack these models. The main reason for this disparity in ABM development is the complexity of the models and the cost and data requirements needed. We posit however that smaller MPOs could develop ABMs from traditional travel surveys. Therefore, the specific aim of this paper is to develop a probabilistic home-based destination activity trip generation model considering travel time behavior. Results show that the developed model can significantly capture the actual number of trip generations.
Journal: Transportation Planning and Technology
Pages: 540-555
Issue: 5
Volume: 40
Year: 2017
Month: 7
X-DOI: 10.1080/03081060.2017.1314505
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1314505
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Handle: RePEc:taf:transp:v:40:y:2017:i:5:p:540-555
Template-Type: ReDIF-Article 1.0
Author-Name: Aleksandar Jovanović
Author-X-Name-First: Aleksandar
Author-X-Name-Last: Jovanović
Author-Name: Dušan Teodorović
Author-X-Name-First: Dušan
Author-X-Name-Last: Teodorović
Title: Pre-timed control for an under-saturated and over-saturated isolated intersection: a Bee Colony Optimization approach
Abstract:
In this paper we study the problem of determining the optimum cycle and phase lengths for isolated signalized intersections. Calculation of the optimal cycle and green phase lengths is based on the minimization of the average control delay experienced by all vehicles that arrive at the intersection within a given time period. We consider under-saturated as well as over-saturated conditions at isolated intersections. The defined traffic signal timing problem, that belongs to the class of combinatorial optimization problems, is solved using the Bee Colony Optimization (BCO) metaheuristic approach. The BCO is a biologically inspired method that explores collective intelligence applied by honey bees during the nectar collecting process. The numerical experiments performed on some examples show that the proposed approach is competitive with other methods. The obtained results show that the proposed approach is capable of generating high-quality solutions within negligible processing times.
Journal: Transportation Planning and Technology
Pages: 556-576
Issue: 5
Volume: 40
Year: 2017
Month: 7
X-DOI: 10.1080/03081060.2017.1314498
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1314498
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Handle: RePEc:taf:transp:v:40:y:2017:i:5:p:556-576
Template-Type: ReDIF-Article 1.0
Author-Name: Yi Qi
Author-X-Name-First: Yi
Author-X-Name-Last: Qi
Author-Name: Qun Zhao
Author-X-Name-First: Qun
Author-X-Name-Last: Zhao
Title: Safety impacts of signalized lane merge control at highway work zones
Abstract:
Lane closures due to highway work zones present many challenges to the goal of ensuring smooth traffic operations and a safe environment for both drivers and workers. Late merge behavior at a work zone closure is a dangerous behavior that impacts the traffic conflicts upstream of work zone closures. This paper analyzes the safety impacts of using a signalized lane control strategy at the work zone merge points. To achieve the objective of this research, a field study has been conducted at a highway work zone to collect traffic and driver behavior data, and a two-stage, simulation-based approach is used to analyze the safety impacts of implementing a signalized lane merge control strategy at the studied work zone. In the first stage, micro-simulation models are developed and calibrated based on field data to generate vehicle trajectories. In the second stage, the U.S. Federal Highway Administration’s Surrogate Safety Assessment Model is employed to identify potential conflicts under different traffic conditions. The paper concludes that a proposed signal control device could significantly reduce lane-change conflicts at work zone merge points. In addition, recommendations on the signal cycle length and timing splits are provided.
Journal: Transportation Planning and Technology
Pages: 577-591
Issue: 5
Volume: 40
Year: 2017
Month: 7
X-DOI: 10.1080/03081060.2017.1314499
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1314499
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Handle: RePEc:taf:transp:v:40:y:2017:i:5:p:577-591
Template-Type: ReDIF-Article 1.0
Author-Name: Stavri Dimitrov
Author-X-Name-First: Stavri
Author-X-Name-Last: Dimitrov
Author-Name: Avishai (Avi) Ceder
Author-X-Name-First: Avishai (Avi)
Author-X-Name-Last: Ceder
Author-Name: Subeh Chowdhury
Author-X-Name-First: Subeh
Author-X-Name-Last: Chowdhury
Author-Name: Mikaël Monot
Author-X-Name-First: Mikaël
Author-X-Name-Last: Monot
Title: Modeling the interaction between buses, passengers and cars on a bus route using a multi-agent system
Abstract:
This paper models part of a public transport network (PTN), specifically, a bus route, as a small-size multi-agent system (MAS). The proposed approach is applied to a case study considering a ‘real world’ bus line within the PTN in Auckland, New Zealand. The MAS-based analysis uses modeling and simulation to examine the characteristics of the observed system – autonomous agents interacting with one another – under different scenarios, considering bus capacity and frequency of service for existing and projected public transport (PT) demand. A simulation model of a bus route is developed, calibrated and validated. Several results are attained, such as when the PT passenger load is not close to bus capacity, this load has no effect on average passenger waiting time at bus stops. The model proposed can be useful to practitioners as a tool to model the interaction between buses and other agents.
Journal: Transportation Planning and Technology
Pages: 592-610
Issue: 5
Volume: 40
Year: 2017
Month: 7
X-DOI: 10.1080/03081060.2017.1314504
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1314504
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Handle: RePEc:taf:transp:v:40:y:2017:i:5:p:592-610
Template-Type: ReDIF-Article 1.0
Author-Name: Xuemei Fu
Author-X-Name-First: Xuemei
Author-X-Name-Last: Fu
Author-Name: Zhicai Juan
Author-X-Name-First: Zhicai
Author-X-Name-Last: Juan
Title: Drivers of transit service loyalty considering heterogeneity between user segments
Abstract:
Users’ loyalty to public transit service is fundamental to promote its popularity in the transportation market. A four-step analytical framework is advanced to investigate the importance of service attributes that heterogeneous transit user segments place on their public transit service loyalty, measured in terms of overall satisfaction and re-use intention. Critical service attributes perceived by transit users that are relevant for loyalty enhancement are explicitly determined, which vary between user segments. It is suggested that the design of strategies aimed to promote the use of public transit by increasing user loyalty towards transit service be targeted at specific attributes that contribute most to loyalty and specific user segments whose original loyalty level is significantly different to others.
Journal: Transportation Planning and Technology
Pages: 611-623
Issue: 5
Volume: 40
Year: 2017
Month: 7
X-DOI: 10.1080/03081060.2017.1314495
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1314495
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Handle: RePEc:taf:transp:v:40:y:2017:i:5:p:611-623
Template-Type: ReDIF-Article 1.0
Author-Name: Zhengdong Huang
Author-X-Name-First: Zhengdong
Author-X-Name-Last: Huang
Author-Name: Ming Zhang
Author-X-Name-First: Ming
Author-X-Name-Last: Zhang
Author-Name: Xuejun Liu
Author-X-Name-First: Xuejun
Author-X-Name-Last: Liu
Title: Estimating light-rail transit peak-hour boarding based on accessibility at station and route levels in Wuhan, China
Abstract:
Promoting public transit is a well-recognized policy for sustainable urban transport development. Transit demand analysis proves to be a challenging task in fast growing cities, partially due to the lack of reliable data and applicable techniques for rapidly changing urban contexts. This paper presents an effort to meet the challenge by developing a framework to estimate peak-hour boarding at light-rail transit (LRT) stations. The core part of the framework is an accessibility-weighted ridership model that multiplies potential demand by integral LRT accessibility. Potential demand around LRT stations is generated by using a distance-decay function. The integral LRT accessibility is a route-level factor that indicates the degree of attractiveness to LRT travel for stations in an LRT corridor. A case study in Wuhan, China, shows that the proposed method produces results useful for improving transit demand analysis.
Journal: Transportation Planning and Technology
Pages: 624-639
Issue: 5
Volume: 40
Year: 2017
Month: 7
X-DOI: 10.1080/03081060.2017.1314497
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1314497
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Handle: RePEc:taf:transp:v:40:y:2017:i:5:p:624-639
Template-Type: ReDIF-Article 1.0
Author-Name: Peter Wanke
Author-X-Name-First: Peter
Author-X-Name-Last: Wanke
Author-Name: Md. Abul Kalam Azad
Author-X-Name-First: Md. Abul
Author-X-Name-Last: Kalam Azad
Title: Efficiency in Asian railways: a comparison between data envelopment analysis approaches
Abstract:
Performance analysis has become a vital part of the management practices in the logistics infrastructure. Although there are numerous applications using Data Envelopment Analysis (DEA) models to estimate efficiency in ports and airports, research on railway efficiency remains scarce. Most of the efficiency studies of railways assume that inputs and outputs are known with absolute precision. Here, we compare Stochastic-DEA and Fuzzy-DEA models to assess, respectively, how the underlying randomness and fuzziness impact efficiency levels in railway operations in six different Asian countries: Japan, Thailand, Vietnam, Malaysia, Myanmar, and Indonesia. Findings reveal that conclusions with respect to the ranking of these railways may vary substantially depending upon the type of model chosen, although efficiency scores are similar to some extent when compared within the ambits of Stochastic-DEA and Fuzzy-DEA models. Additionally, modeling choices on fuzziness, rather than randomness, appear to be the most critical source for variations in efficiency rankings.
Journal: Transportation Planning and Technology
Pages: 573-599
Issue: 6
Volume: 41
Year: 2018
Month: 8
X-DOI: 10.1080/03081060.2018.1488928
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1488928
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Handle: RePEc:taf:transp:v:41:y:2018:i:6:p:573-599
Template-Type: ReDIF-Article 1.0
Author-Name: Brittany S. Wood
Author-X-Name-First: Brittany S.
Author-X-Name-Last: Wood
Author-Name: Mark W. Horner
Author-X-Name-First: Mark W.
Author-X-Name-Last: Horner
Title: Aggregating mobile object trajectories: cumulative time geographic density estimation for GPS data
Abstract:
We present new approaches that expand upon the time geographic density estimation (TGDE) framework previously employed to estimate potential path trees. In the past, TGDE metrics have identified possible locations an individual moving object may have passed between, given known origin and destination points. This paper utilizes a new form of TGDE to investigate taxicab GPS traces over a specified time horizon with position ‘gaps’. To this end, we propose a new extension to the TGDE framework, TGDE-C, which is used to determine the cumulative TGDE values for a group of GPS traces, at a given location. These metrics are applied to multiple taxis and allow for time of day analysis. Additionally, we combine these new extensions with existing TGDE metrics that allow us to determine how accessible individual or groups of vehicles are to urban opportunities.
Journal: Transportation Planning and Technology
Pages: 600-616
Issue: 6
Volume: 41
Year: 2018
Month: 8
X-DOI: 10.1080/03081060.2018.1488929
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1488929
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Handle: RePEc:taf:transp:v:41:y:2018:i:6:p:600-616
Template-Type: ReDIF-Article 1.0
Author-Name: Myungseob (Edward) Kim
Author-X-Name-First: Myungseob (Edward)
Author-X-Name-Last: Kim
Author-Name: Paul Schonfeld
Author-X-Name-First: Paul
Author-X-Name-Last: Schonfeld
Author-Name: Eungcheol Kim
Author-X-Name-First: Eungcheol
Author-X-Name-Last: Kim
Title: Switching service types for multi-region bus systems
Abstract:
Conventional fixed-route bus services are generally preferred to flexible-route services at high demand densities, and vice versa. This paper formulates the problem of integrating conventional and flexible services that connect a main terminal to multiple local regions over multiple time periods. The system’s vehicle size, route spacing (for conventional services), service area (for flexible services), headways and fleet sizes are jointly optimized to minimize the sum of supplier costs and user costs. The route spacing for conventional bus services and service area for flexible bus services are also optimized for each region. The proposed solution method, which uses a genetic algorithm and analytic optimization, finds good solutions quickly. Numerical examples and sensitivity analyses confirm that the single fleet variable-type bus service may outperform either the single fleet conventional bus service or the single fleet flexible bus service when demand densities vary substantially among regions and time periods.
Journal: Transportation Planning and Technology
Pages: 617-643
Issue: 6
Volume: 41
Year: 2018
Month: 8
X-DOI: 10.1080/03081060.2018.1488930
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1488930
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Handle: RePEc:taf:transp:v:41:y:2018:i:6:p:617-643
Template-Type: ReDIF-Article 1.0
Author-Name: Hans Huber
Author-X-Name-First: Hans
Author-X-Name-Last: Huber
Title: India’s air traffic: towards an empirical framework for systems analysis
Abstract:
The paper explores patterns of flows within India’s Air Traffic System through the lens of carriers’ networks and route structures between 2006 and 2014. Through observations of frequency distributions and their distinct patterns an analytic framework is derived heuristically by means of classification and aggregation. The well-known skewed traffic distribution which spatially concentrates traffic around relatively few airports serves as the starting point for decomposing the air traffic system (ATS) into its constituent route types. Airline operations along distinct route classes allows for classifying individual carrier’s network features as an embedded part of the system. Discussion of their role includes a spatial component. Inferences about development paths – past, present, future – of the Indian commercial ATS can be made.
Journal: Transportation Planning and Technology
Pages: 644-659
Issue: 6
Volume: 41
Year: 2018
Month: 8
X-DOI: 10.1080/03081060.2018.1488931
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1488931
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Handle: RePEc:taf:transp:v:41:y:2018:i:6:p:644-659
Template-Type: ReDIF-Article 1.0
Author-Name: Muhammad Adeel
Author-X-Name-First: Muhammad
Author-X-Name-Last: Adeel
Author-Name: Anthony G. O. Yeh
Author-X-Name-First: Anthony G. O.
Author-X-Name-Last: Yeh
Title: Gendered immobility: influence of social roles and local context on mobility decisions in Pakistan
Abstract:
This paper examines the instances of one-day immobility in Pakistan and reports its socio-demographic determinants using the nationally representative dataset of the 2007 Pakistan Time Use Survey. Of 37,830 time diary respondents, nearly 30% did not report travel during the diary day. Homemakers and those out of the workforce were more likely to be immobile than employed or student respondents. Immobility rates were very high among women (55%) as compared to men (4%). Among women, those between 20 and 34 years of age, married, with children, having better education, dependent on other household members and those living in higher income households were more likely to be immobile. The excessive gender nature of immobility seems to be triggered by a gender-based sociocultural environment, which restricts female mobility due to family honor concerns. Other than this, those living in the provinces of Sindh and Khyber Pakhtunkhwa or in urban areas were more likely to be immobile than those living in Punjab and Sindh provinces or in rural areas. The significant geographic effect at broader spatial scale is caused by the demographic structure as well as due to differences in the social and cultural context of these areas. Finally, questions regarding the measurement of immobility and the potential implications of increased female immobility are discussed.
Journal: Transportation Planning and Technology
Pages: 660-678
Issue: 6
Volume: 41
Year: 2018
Month: 8
X-DOI: 10.1080/03081060.2018.1488932
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1488932
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Handle: RePEc:taf:transp:v:41:y:2018:i:6:p:660-678
Template-Type: ReDIF-Article 1.0
Author-Name: Nobuhiro Sanko
Author-X-Name-First: Nobuhiro
Author-X-Name-Last: Sanko
Title: Factors affecting temporal changes in mode choice model parameters
Abstract:
In travel demand forecasting models, parameters are often assumed to be stable over time. The stability of these parameters, however, has been questioned. This study investigates the factors affecting temporal changes in mode choice model parameters using a method proposed by the author that jointly utilises repeated cross-sectional data. In this method, the parameters are assumed to follow functional forms and the parameter changes are modelled endogenously. While the author’s previous studies assumed that all parameters are the same function of the same variable, this study assumes that different parameters are different functions of different variables, including time (year) and macro-economic variables. The paper describes a case study of a journey-to-work mode choice analysis for Nagoya, Japan, that examines 288 combinations of the functional forms and variables. The analysis found that the functions of time had serious over-fitting problems and that parameter changes are more closely related to economic factors.
Journal: Transportation Planning and Technology
Pages: 641-652
Issue: 7
Volume: 39
Year: 2016
Month: 10
X-DOI: 10.1080/03081060.2016.1204088
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1204088
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Handle: RePEc:taf:transp:v:39:y:2016:i:7:p:641-652
Template-Type: ReDIF-Article 1.0
Author-Name: Mohammad Saifuzzaman
Author-X-Name-First: Mohammad
Author-X-Name-Last: Saifuzzaman
Author-Name: Leonid Engelson
Author-X-Name-First: Leonid
Author-X-Name-Last: Engelson
Author-Name: Ida Kristoffersson
Author-X-Name-First: Ida
Author-X-Name-Last: Kristoffersson
Author-Name: André de Palma
Author-X-Name-First: André
Author-X-Name-Last: de Palma
Title: Stockholm congestion charging: an assessment with METROPOLIS and SILVESTER
Abstract:
This paper reviews and compares the performance of two dynamic transportation models – METROPOLIS and SILVESTER – which are used to predict the impacts of congestion charging for Stockholm. Both are mesoscopic dynamic models treating accumulation and dissipation of traffic queues, route choice, modal split and departure time choice. The models are calibrated independently for the baseline situation without charges and applied to forecast the effects of congestion charging. The results obtained from the two models are mutually compared and validated against the actual outcome of the Stockholm congestion charging scheme. Both models successfully predict the outcomes of the congestion charging trial at both aggregate and disaggregate levels. Results of welfare analysis, however, differ substantially due to differences in model specification.
Journal: Transportation Planning and Technology
Pages: 653-674
Issue: 7
Volume: 39
Year: 2016
Month: 10
X-DOI: 10.1080/03081060.2016.1204089
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1204089
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Handle: RePEc:taf:transp:v:39:y:2016:i:7:p:653-674
Template-Type: ReDIF-Article 1.0
Author-Name: Partha Chakroborty
Author-X-Name-First: Partha
Author-X-Name-Last: Chakroborty
Author-Name: Rahul Gill
Author-X-Name-First: Rahul
Author-X-Name-Last: Gill
Author-Name: Pranamesh Chakraborty
Author-X-Name-First: Pranamesh
Author-X-Name-Last: Chakraborty
Title: Analysing queueing at toll plazas using a coupled, multiple-queue, queueing system model: application to toll plaza design
Abstract:
A vehicle approaching a toll plaza observes the queues at each of the available toll-lanes before choosing which to join. This choice process, the arrival process of vehicles and the service characteristics of the toll-booths, affect the queues and delay the drivers. In this paper, queueing at a toll plaza is modelled as a multiple-queue queueing system where the arrival process to a queue (toll-lane) is dependent on the state of all the queues. In the past, such systems have been modelled mathematically only for two queues and are not applicable for toll plazas with three or more toll-lanes. The proposed model determines the steady-state probability density function (pdf) for the queues at large toll plazas. This study is used to determine the number of toll-lanes or the length of the upstream queueing area required to achieve certain user-specified levels-of-service. Expected delay and maximum queue length are used as level-of-service measures. Indicative design charts are also provided.
Journal: Transportation Planning and Technology
Pages: 675-692
Issue: 7
Volume: 39
Year: 2016
Month: 10
X-DOI: 10.1080/03081060.2016.1204090
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1204090
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Handle: RePEc:taf:transp:v:39:y:2016:i:7:p:675-692
Template-Type: ReDIF-Article 1.0
Author-Name: Rolf Moeckel
Author-X-Name-First: Rolf
Author-X-Name-Last: Moeckel
Author-Name: Rick Donnelly
Author-X-Name-First: Rick
Author-X-Name-Last: Donnelly
Title: A model for national freight flows, distribution centers, empty trucks and urban truck movements
Abstract:
Trucks travel both short distances for local deliveries and long distances for transporting goods across the country. Often their travel behavior is tour-based, they run under tight schedules and under curfew on selected roads. Despite these differences from personal travel, in practice truck models largely follow person travel methods. To overcome this shortcoming, a two-layer truck model is developed for the Chicago Metropolitan Area. Long-distance trucks are driven by commodity flows, with distribution centers, rail yards, marine ports and airports being represented explicitly. Empty trucks are accounted for as well. For the short-distance truck model, a novel parameter estimation method makes use of limited data to derive region-specific parameters. The model is fully operational and validates reasonably well against traffic counts.
Journal: Transportation Planning and Technology
Pages: 693-711
Issue: 7
Volume: 39
Year: 2016
Month: 10
X-DOI: 10.1080/03081060.2016.1204091
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1204091
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Handle: RePEc:taf:transp:v:39:y:2016:i:7:p:693-711
Template-Type: ReDIF-Article 1.0
Author-Name: Hans Huber
Author-X-Name-First: Hans
Author-X-Name-Last: Huber
Title: Network structure, capacity growth and route hierarchies: the case of China’s air traffic system revisited
Abstract:
This paper examines air traffic patterns among China’s scheduled airlines in January 2006 and January 2011, using Official Airline Guide data on carrier schedules. The author classifies Chinese carriers into one of four classes. Airports are also organized into a classification scheme based on several criteria related to the total volume of traffic, the carriers serving the airports and the nature of the airports to which they are connected. Counts, sums, percentage shares and changes in these calculations between 2006 and 2011 are presented in tabular form. Inferences about the fundamental structure and future patterns of capacity growth for the yet not fully emerged Chinese air traffic system can be drawn.
Journal: Transportation Planning and Technology
Pages: 712-729
Issue: 7
Volume: 39
Year: 2016
Month: 10
X-DOI: 10.1080/03081060.2016.1204092
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1204092
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Handle: RePEc:taf:transp:v:39:y:2016:i:7:p:712-729
Template-Type: ReDIF-Article 1.0
Author-Name: David Jaffee
Author-X-Name-First: David
Author-X-Name-Last: Jaffee
Title: Kink in the intermodal supply chain: interorganizational relations in the port economy
Abstract:
The intermodal logistics supply chain is designed to move goods from the point of production to the point of consumption as quickly and as cheaply as possible. The ability to accomplish this objective has allowed for the wholesale geographic relocation and offshoring of basic manufacturing and assembly. As a chain of linked and integrated organizations characterized by sequential interdependence, interorganizational relations play a key role in determining the level of integration and seamlessness. Yet there is one critical interorganizational link in the chain that deviates from this vision. This is the relationship between the shipping container terminal and drayage trucking operations which is better described as a form of intermodal disintegration. The weakness in this link of the supply chain is explained by the divergent industrial structures and labor market conditions, the unique nature of the transaction, and the externalization of costs to subordinate workers.
Journal: Transportation Planning and Technology
Pages: 730-746
Issue: 7
Volume: 39
Year: 2016
Month: 10
X-DOI: 10.1080/03081060.2016.1204093
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1204093
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Handle: RePEc:taf:transp:v:39:y:2016:i:7:p:730-746
Template-Type: ReDIF-Article 1.0
Author-Name: Bradley Kloostra
Author-X-Name-First: Bradley
Author-X-Name-Last: Kloostra
Author-Name: Matthew J. Roorda
Author-X-Name-First: Matthew J.
Author-X-Name-Last: Roorda
Title: Fully autonomous vehicles: analyzing transportation network performance and operating scenarios in the Greater Toronto Area, Canada
Abstract:
Fully autonomous vehicles (AVs) have the potential to considerably change urban mobility in the future. This study simulates potential AV operating scenarios in the Greater Toronto Area (GTA), Canada, and assesses transportation system performance on a regional level. For each scenario, the base capacities of certain types of road links are modified to simulate the theoretical increase in throughput enabled by AV driving behavior. Another scenario examines driverless parking operations in downtown Toronto. Simulation results indicate that the increased attractiveness of freeways relative to other routes leads to slightly increased average travel distance as vehicles divert to access higher capacity road links. Average travel time is found to decrease by up to one-fifth at the 90% AV market penetration level. Concurrently, localized increases in congestion suggest that proactive transportation planning will be needed to mitigate negative consequences of AV adoption, especially in relation to induced demand for personal automobile travel.
Journal: Transportation Planning and Technology
Pages: 99-112
Issue: 2
Volume: 42
Year: 2019
Month: 2
X-DOI: 10.1080/03081060.2019.1565159
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1565159
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Handle: RePEc:taf:transp:v:42:y:2019:i:2:p:99-112
Template-Type: ReDIF-Article 1.0
Author-Name: Arash Beheshtian
Author-X-Name-First: Arash
Author-X-Name-Last: Beheshtian
Author-Name: K. P. Donaghy
Author-X-Name-First: K. P.
Author-X-Name-Last: Donaghy
Author-Name: O. M. Rouhani
Author-X-Name-First: O. M.
Author-X-Name-Last: Rouhani
Author-Name: R. Geddes
Author-X-Name-First: R.
Author-X-Name-Last: Geddes
Title: Adaptation planning for climate-resilient urban infrastructures
Abstract:
This paper analyzes the interdependency across two critical infrastructures of transportation and motor fueling supply chains, and investigates how vulnerability to climatic extremes in a fueling infrastructure hampers the resilience of a transportation system. The proposed model features both a bi-stage mathematical program and an extension to an ‘α-reliable mean-excess’ regret model. The former aspect allows decision makers to optimize the pre-disaster asset prepositioning against the maximum post-disaster system resilience. The latter aspect of the proposed model devalues the impact of ‘low-probability, high-cost’ sub-scenarios upon model results. The model reveals the reliance of post-disaster urban mobility on the interdependent critical infrastructure of motor fueling supply chains. The results also suggest how investment in the fueling infrastructure’s vulnerable elements protects urban mobility while the transportation network is stressed or under attack.
Journal: Transportation Planning and Technology
Pages: 113-129
Issue: 2
Volume: 42
Year: 2019
Month: 2
X-DOI: 10.1080/03081060.2019.1565160
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1565160
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Handle: RePEc:taf:transp:v:42:y:2019:i:2:p:113-129
Template-Type: ReDIF-Article 1.0
Author-Name: Milan Janić
Author-X-Name-First: Milan
Author-X-Name-Last: Janić
Title: Future advanced long-haul Evacuated Tube Transport (EET) system operated by TransRapid Maglev (TRM): a multidimensional examination of performance
Abstract:
This paper presents a multidimensional examination of the infrastructural, technical/technological, operational, economic, environmental, social, and policy performance of the future advanced Evacuated Tube Transport (ETT) system operated by TransRapid Maglev (TRM) (the ETT-TRM system). The examination implies analyzing, modeling, and estimating selected performance criteria using the case of the Trans-Atlantic passenger transport market currently served exclusively by the Air Passenger Transport (APT) system. The purpose is to assess the ETT-TRM system’s competitive capabilities compared to those of the current and future APT system and consequently its potential contribution to mitigating impacts of both systems on society and the environment – the sustainability of the transport sector - under given conditions.
Journal: Transportation Planning and Technology
Pages: 130-151
Issue: 2
Volume: 42
Year: 2019
Month: 2
X-DOI: 10.1080/03081060.2019.1565161
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1565161
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Handle: RePEc:taf:transp:v:42:y:2019:i:2:p:130-151
Template-Type: ReDIF-Article 1.0
Author-Name: Richard B. Ellison
Author-X-Name-First: Richard B.
Author-X-Name-Last: Ellison
Author-Name: David A. Hensher
Author-X-Name-First: David A.
Author-X-Name-Last: Hensher
Author-Name: Stephen P. Greaves
Author-X-Name-First: Stephen P.
Author-X-Name-Last: Greaves
Title: Collecting longitudinal data from freight operators: survey design and implementation ideas and challenges
Abstract:
Freight transport research has generally been limited by a lack of data of the breadth and quality available for passenger transport, particularly in terms of behavioural data. This paper discusses the survey design and implementation of a survey intended to collect longitudinal behavioural data on the responses of freight transport firms to environmental policies. The design of the survey is centred around a hypothetical scenario where respondents are asked how they would complete a given freight task within common constraints. One of the key components of the survey design is a dynamic component intended to simulate the changing business environment. The paper illustrates the many challenges in getting complex freight related surveys in the field.
Journal: Transportation Planning and Technology
Pages: 152-166
Issue: 2
Volume: 42
Year: 2019
Month: 2
X-DOI: 10.1080/03081060.2019.1565162
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1565162
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Handle: RePEc:taf:transp:v:42:y:2019:i:2:p:152-166
Template-Type: ReDIF-Article 1.0
Author-Name: Cheng-Lung Wu
Author-X-Name-First: Cheng-Lung
Author-X-Name-Last: Wu
Author-Name: Yimeng Chen
Author-X-Name-First: Yimeng
Author-X-Name-Last: Chen
Title: Effects of passenger characteristics and terminal layout on airport retail revenue: an agent-based simulation approach
Abstract:
This paper examines the effect of passenger characteristics and terminal layout on airport retail revenue using an agent-based simulation approach. Simulation results show that passenger mix (that is, the mix of shopper types according to a typology of airport shoppers) has a profound effect on airport retail revenue; the larger the number of ‘shopping lovers’ there are among passengers, the higher the airport retail revenue. Results also reveal that group travel can lead to negative effects on retail in certain terminal layouts, and that the amount of free dwell time that a passenger has can affect spending due to less retail engagement. This paper shows a combined effect of passenger characteristics and terminal layout on airport retail revenue, and discusses the implications of these results for future airport terminal design that aims to maximise retail potential.
Journal: Transportation Planning and Technology
Pages: 167-186
Issue: 2
Volume: 42
Year: 2019
Month: 2
X-DOI: 10.1080/03081060.2019.1565163
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1565163
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Handle: RePEc:taf:transp:v:42:y:2019:i:2:p:167-186
Template-Type: ReDIF-Article 1.0
Author-Name: Martijn van der Horst
Author-X-Name-First: Martijn
Author-X-Name-Last: van der Horst
Author-Name: Michiel Kort
Author-X-Name-First: Michiel
Author-X-Name-Last: Kort
Author-Name: Bart Kuipers
Author-X-Name-First: Bart
Author-X-Name-Last: Kuipers
Author-Name: Harry Geerlings
Author-X-Name-First: Harry
Author-X-Name-Last: Geerlings
Title: Coordination problems in container barging in the port of Rotterdam: an institutional analysis
Abstract:
Container barging has gained in importance in port-related transport along with the need for sustainable transport. Nevertheless, coordination problems between terminal operator and barge operator exist, and performance lags behind. This paper analyses factors that may hinder or stimulate a better future performance of container barging in the port of Rotterdam. A case study is accomplished and guided by a framework rooted in Institutional Economics. Despite favourable conditions set by governments and the port authority, the share of container barging has hardly grown. The container barging sector in Rotterdam is embedded in a history with many alliances, a high degree of organisation, and a good track record in the development of institutional arrangements to solve coordination problems. However, the present contractual relations in the transport chain form an inadequate condition. From a theoretical perspective, the paper shows the value of studying port-related transport chains by acknowledging their institutional context.
Journal: Transportation Planning and Technology
Pages: 187-199
Issue: 2
Volume: 42
Year: 2019
Month: 2
X-DOI: 10.1080/03081060.2019.1565164
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1565164
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Handle: RePEc:taf:transp:v:42:y:2019:i:2:p:187-199
Template-Type: ReDIF-Article 1.0
Author-Name: Niels Heeres
Author-X-Name-First: Niels
Author-X-Name-Last: Heeres
Author-Name: Taede Tillema
Author-X-Name-First: Taede
Author-X-Name-Last: Tillema
Author-Name: Jos Arts
Author-X-Name-First: Jos
Author-X-Name-Last: Arts
Title: The changing role of decision support instruments in integrated infrastructure planning: lessons from the Sustainability Check
Abstract:
This article draws lessons about recent innovations in decision support for coping with challenges in integrated infrastructure planning strategies. After setting up a conceptual framework for the scope of analysis and the use of information in infrastructure planning, the empirical section explores the introduction of early-stage sustainability assessment tools. Data collection draws on experiences gained in the Netherlands with a new tool: ‘Sustainability Check’. We conclude that such instruments have a number of capacities that address the challenges of area-oriented planning: (a) bringing together information about the comprehensive value of alternatives, (b) facilitating the generation of alternatives, (c) addressing institutional fragmentation by learning about referential frames, and (d) adding contextual perspectives to the ‘hard’ outcomes of conventional tools. We also conclude that tools such as Sustainability Check should not be seen as a replacement for conventional decision support tools, but rather as complementary to them.
Journal: Transportation Planning and Technology
Pages: 679-705
Issue: 7
Volume: 41
Year: 2018
Month: 10
X-DOI: 10.1080/03081060.2018.1488933
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1488933
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Handle: RePEc:taf:transp:v:41:y:2018:i:7:p:679-705
Template-Type: ReDIF-Article 1.0
Author-Name: Liuhui Zhao
Author-X-Name-First: Liuhui
Author-X-Name-Last: Zhao
Author-Name: Steven I. Chien
Author-X-Name-First: Steven I.
Author-X-Name-Last: Chien
Author-Name: Lazar N. Spasovic
Author-X-Name-First: Lazar N.
Author-X-Name-Last: Spasovic
Author-Name: Xiaobo Liu
Author-X-Name-First: Xiaobo
Author-X-Name-Last: Liu
Title: Modeling and optimizing urban bus transit considering headway variation for cost and service reliability analysis
Abstract:
Due to the stochastic nature of traffic conditions and demand fluctuations, it is a challenging task for operators to maintain reliable services, and passengers often suffer from longer travel times. A failure to consider this issue while planning bus services may lead to undesirable results, such as higher costs and a deterioration in level of service. Considering headway variation at route stops, this paper develops a mathematical model to optimize bus stops and dispatching headways that minimize total cost, consisting of both user and operator costs. A Genetic Algorithm is applied to search for a cost-effective solution in a real-world case study of a bus transit system, which improves service reliability in terms of a reduced coefficient of variation of headway.
Journal: Transportation Planning and Technology
Pages: 706-723
Issue: 7
Volume: 41
Year: 2018
Month: 10
X-DOI: 10.1080/03081060.2018.1504181
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1504181
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Handle: RePEc:taf:transp:v:41:y:2018:i:7:p:706-723
Template-Type: ReDIF-Article 1.0
Author-Name: Ismaïl Saadi
Author-X-Name-First: Ismaïl
Author-X-Name-Last: Saadi
Author-Name: Hamed Eftekhar
Author-X-Name-First: Hamed
Author-X-Name-Last: Eftekhar
Author-Name: Jacques Teller
Author-X-Name-First: Jacques
Author-X-Name-Last: Teller
Author-Name: Mario Cools
Author-X-Name-First: Mario
Author-X-Name-Last: Cools
Title: Investigating scalability in population synthesis: a comparative approach
Abstract:
In this paper, we investigate the influence of scalability on the accuracy of different synthetic populations using both fitting and generation-based approaches. Most activity-based models need a base-year synthetic population of agents with various attributes. However, when several attributes need to be synthesized, the accuracy of the synthetic population may decrease due to the mixed effects of scalability and dimensionality. We analyze two population synthesis methods for different levels of scalability, i.e. two to five attributes and different sample sizes – 10%, 25% and 50%. Results reveal that the simulation-based approach is more stable than Iterative Proportional Fitting (IPF) when the number of attributes increases. However, IPF is less sensitive to changes in sample size when compared to the simulation-based approach. We also demonstrate the importance of choosing the appropriate metric to validate the synthetic populations as the trends in terms of RMSE/MAE are different from those of SRMSE.
Journal: Transportation Planning and Technology
Pages: 724-735
Issue: 7
Volume: 41
Year: 2018
Month: 10
X-DOI: 10.1080/03081060.2018.1504182
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1504182
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Handle: RePEc:taf:transp:v:41:y:2018:i:7:p:724-735
Template-Type: ReDIF-Article 1.0
Author-Name: George Sammour
Author-X-Name-First: George
Author-X-Name-Last: Sammour
Author-Name: Koen Vanhoof
Author-X-Name-First: Koen
Author-X-Name-Last: Vanhoof
Title: A validation measure for computational scheduler activity-based transportation models based on sequence alignment methods
Abstract:
In recent decades, activity-based transportation models have gained growing attention, due to their strong foundation in behavioral theory and ability to model the response of individuals to travel demand management policies. Hence, researchers have become increasingly interested in analyzing and predicting individuals’ decisions about activity participation. This paper investigates the reliability and uncertainty of computational process activity-based models. The design of the scheduling process model is experimented with by introducing an alternative decision sequence. The results provide additional information to better understand the process model’s reliability and behavior. Furthermore, the findings show that the current sequence of decision steps in the process model in ALBATROSS achieves satisfactory work activity schedules. Finally, the study concludes that using a decision tree model achieves a better performance than using diverse data mining approaches.
Journal: Transportation Planning and Technology
Pages: 736-751
Issue: 7
Volume: 41
Year: 2018
Month: 10
X-DOI: 10.1080/03081060.2018.1504183
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1504183
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Handle: RePEc:taf:transp:v:41:y:2018:i:7:p:736-751
Template-Type: ReDIF-Article 1.0
Author-Name: Yung-Cheng (Rex) Lai
Author-X-Name-First: Yung-Cheng (Rex)
Author-X-Name-Last: Lai
Author-Name: Chung-Wei Huang
Author-X-Name-First: Chung-Wei
Author-X-Name-Last: Huang
Author-Name: Yu-Ting Hsu
Author-X-Name-First: Yu-Ting
Author-X-Name-Last: Hsu
Title: Estimation of rail passenger flow and system utilization with ticket transaction and gate data
Abstract:
Capturing the dynamics in passenger flow and system utilization over time and space is extremely important for railway operators. Previous studies usually estimated passenger flow using automatic fare collection data, and their applications are limited to a single stopping pattern and/or a single type of ticket. However, the conventional railway in Taiwan provides four types of ticket and five types of train service with a number of stopping patterns. This study develops a comprehensive framework and corresponding algorithms to map passenger flow and evaluate system utilization. A multinomial logit model is constructed and incorporated in the algorithms to estimate passenger train selection behavior. Results from the empirical studies demonstrate that the developed framework and algorithms can successfully match passengers with train services. With this tool, operators can efficiently examine passenger flow and service utilization, thereby quickly adjusting their service strategies accordingly to improve system performance.
Journal: Transportation Planning and Technology
Pages: 752-778
Issue: 7
Volume: 41
Year: 2018
Month: 10
X-DOI: 10.1080/03081060.2018.1504184
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1504184
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Handle: RePEc:taf:transp:v:41:y:2018:i:7:p:752-778
Template-Type: ReDIF-Article 1.0
Author-Name: Tao Li
Author-X-Name-First: Tao
Author-X-Name-Last: Li
Author-Name: Shengrun Zhang
Author-X-Name-First: Shengrun
Author-X-Name-Last: Zhang
Author-Name: Xiaoshu Cao
Author-X-Name-First: Xiaoshu
Author-X-Name-Last: Cao
Author-Name: Frank Witlox
Author-X-Name-First: Frank
Author-X-Name-Last: Witlox
Title: Does a circular high-speed rail network promote efficiency and spatial equity in transport accessibility? Evidence from Hainan Island, China
Abstract:
This paper investigates the efficiency and spatial equity impacts of a unique island-looping high-speed rail (HSR) network in Hainan province, China. An integrated network and raster-based model is applied to accurately measure the accessibility indicators. We perform analysis at four different geographical planning levels – island, corridor, spillover, and county level. The HSR with a non-polarized topology can increase the accessibility of the entire island and corridor, but only leads to a slight increase in the spillover areas without HSR stations. HSR construction also leads to spatial cohesion for the entire island and corridor. Although the circular HSR network consists of several HSR stations distributed relatively equally, the results show that counties contribute differently to the cohesion of the entire island due to the varied initial level of accessibility values. Moreover, the county-level analysis reveals that the internal changes of each county are also different with balancing, polarization, and neutral effects appearing. Therefore, the internal equity of counties needs to be combined with their external contributions to global equity. Our framework permits policymakers to make customized HSR transport policies at different planning levels, particularly for an isolated area.
Journal: Transportation Planning and Technology
Pages: 779-795
Issue: 7
Volume: 41
Year: 2018
Month: 10
X-DOI: 10.1080/03081060.2018.1504186
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1504186
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Handle: RePEc:taf:transp:v:41:y:2018:i:7:p:779-795
Template-Type: ReDIF-Article 1.0
Author-Name: Hong Zheng
Author-X-Name-First: Hong
Author-X-Name-Last: Zheng
Author-Name: Srinivas Peeta
Author-X-Name-First: Srinivas
Author-X-Name-Last: Peeta
Title: Routing and charging locations for electric vehicles for intercity trips
Abstract:
This study addresses two problems in the context of battery electric vehicles (EVs) for intercity trips: the EV routing problem and the EV optimal charging station location problem (CSLP). The paper shows that EV routing on the shortest path subject to range feasibility for one origin–destination (O–D) pair, called the shortest walk problem (SWP), as well as a stronger version of the problem – the p-stop limited SWP – can be reduced to solving the shortest path problem on an auxiliary network. The paper then addresses optimal CSLPs in which EVs are range feasible with and without p-stops. We formulate the models as mixed-integer multi-commodity flow problems on the same auxiliary network without path and relay pattern enumeration. Benders decomposition is used to propose an exact solution approach. Numerical experiments are conducted using the Indiana state network.
Journal: Transportation Planning and Technology
Pages: 393-419
Issue: 4
Volume: 40
Year: 2017
Month: 5
X-DOI: 10.1080/03081060.2017.1300245
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1300245
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Handle: RePEc:taf:transp:v:40:y:2017:i:4:p:393-419
Template-Type: ReDIF-Article 1.0
Author-Name: Joonho Ko
Author-X-Name-First: Joonho
Author-X-Name-Last: Ko
Author-Name: Daejin Kim
Author-X-Name-First: Daejin
Author-X-Name-Last: Kim
Author-Name: Daisik Nam
Author-X-Name-First: Daisik
Author-X-Name-Last: Nam
Author-Name: Taekyung Lee
Author-X-Name-First: Taekyung
Author-X-Name-Last: Lee
Title: Determining locations of charging stations for electric taxis using taxi operation data
Abstract:
The adequate provision of charging infrastructure is critical for the effective deployment of electric taxis. This study attempts to locate charging stations for electric taxis reflecting real-world taxi travel patterns identified from taxis equipped with digital tachographs. Data for one week are processed in order to estimate their charge demand. The estimated temporal distribution of charge demand indicates that it varies day-by-day and hour-by-hour. The maximum set covering model is applied for determining the locations of charging stations. The results show that the pre-specified service distance and service coverage rate (defined by the proportion of total demand served) can be critical factors for determining the number and location of charging stations. These factors should be carefully specified by considering the tradeoff between operational efficiency of charging facilities and user convenience.
Journal: Transportation Planning and Technology
Pages: 420-433
Issue: 4
Volume: 40
Year: 2017
Month: 5
X-DOI: 10.1080/03081060.2017.1300243
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1300243
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Handle: RePEc:taf:transp:v:40:y:2017:i:4:p:420-433
Template-Type: ReDIF-Article 1.0
Author-Name: Xuemei Fu
Author-X-Name-First: Xuemei
Author-X-Name-Last: Fu
Author-Name: Zhicai Juan
Author-X-Name-First: Zhicai
Author-X-Name-Last: Juan
Title: Accommodating preference heterogeneity in commuting mode choice: an empirical investigation in Shaoxing, China
Abstract:
A latent class model is developed to accommodate preference heterogeneity across commuters with respect to their mode choice between electric bike, private car, and public bus within the context of China. A three-segment solution – ‘electric bike individuals’, ‘private car addicts’, and ‘public bus enthusiasts’ – is identified, each characterized by heterogeneous preferences regarding specific mode attributes and unique socio-demographic profile. The choice model confirms the determinative effects of perceived alternative attributes on commuting mode choice, while the traditionally used objective attributes – travel time and cost – are found to have relatively small influences. The membership model provides solid explanations for these segment-specific preferences. This study provides a better understanding of the nature of mode choice behavior, which can be useful for strategies tailored to a specific segment in order to promote the use of sustainable transport modes.
Journal: Transportation Planning and Technology
Pages: 434-448
Issue: 4
Volume: 40
Year: 2017
Month: 5
X-DOI: 10.1080/03081060.2017.1300240
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1300240
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Handle: RePEc:taf:transp:v:40:y:2017:i:4:p:434-448
Template-Type: ReDIF-Article 1.0
Author-Name: Michael J. Clay
Author-X-Name-First: Michael J.
Author-X-Name-Last: Clay
Author-Name: Arnold Valdez
Author-X-Name-First: Arnold
Author-X-Name-Last: Valdez
Title: The Bid-rent Land Use Model of the simple, efficient, elegant, and effective model of land use and transportation
Abstract:
Integrated land use/transportation forecasting models add significant policy and infrastructure alternatives analysis capabilities to the urban planning process. The financial, time, and staff requirements to develop these models has put them beyond the reach of most small to medium sized urban areas. This paper presents the land use allocation submodel of the Simple, Efficient, Elegant, and Effective model of land use and transportation (SE3M), an integrated land use and transportation forecasting model founded upon Economic Base Theory and Bid-rent Theory. The Bid-rent Land Use Model (BLUM) is an agent based, spatial competition model utilizing unique utility curves for willingness to pay and incomes for budget constrained abilities to pay for each agent. The model structure, estimation, calibration, implementation, and validation are presented. With a single year of land use data available, the validation approach used the Kappa Index of Agreement to spatially check model outputs against base year control data while controlling for agreement by chance. The U.S. territory of Guam is used as the case study/proof of concept implementation for this model framework. Once calibrated, BLUM could solve the spatial competition problem on Guam in less than two minutes of processing time with over 90% accuracy.
Journal: Transportation Planning and Technology
Pages: 449-464
Issue: 4
Volume: 40
Year: 2017
Month: 5
X-DOI: 10.1080/03081060.2017.1300239
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1300239
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Handle: RePEc:taf:transp:v:40:y:2017:i:4:p:449-464
Template-Type: ReDIF-Article 1.0
Author-Name: Jooyoung Kim
Author-X-Name-First: Jooyoung
Author-X-Name-Last: Kim
Author-Name: Seungjae Lee
Author-X-Name-First: Seungjae
Author-X-Name-Last: Lee
Title: Comparative analysis of traveler destination choice models by method of sampling alternatives
Abstract:
In a destination choice model, it is important to introduce alternatives that have been adequately aggregated into traffic analysis zone levels based on spatial similarities and feasibility of analysis, because considering every spatial location possible for the traveler as an elemental alternative is intractable in terms of data management and analysis. In this study, we derive strata for alternative sets through simple random sampling and stratified importance sampling based on the concept of Moran’s I. As a result of comparative analysis, we are able to reduce errors by drawing an adequate number of samples for the destination choice model’s choice alternative sets based on measures of spatial similarity.
Journal: Transportation Planning and Technology
Pages: 465-478
Issue: 4
Volume: 40
Year: 2017
Month: 5
X-DOI: 10.1080/03081060.2017.1300242
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1300242
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Handle: RePEc:taf:transp:v:40:y:2017:i:4:p:465-478
Template-Type: ReDIF-Article 1.0
Author-Name: Ye Li
Author-X-Name-First: Ye
Author-X-Name-Last: Li
Author-Name: Qiang Cui
Author-X-Name-First: Qiang
Author-X-Name-Last: Cui
Title: Airline energy efficiency measures using the Virtual Frontier Network RAM with weak disposability
Abstract:
In this paper, airline energy efficiency is divided into three stages: the operations stage, the services stage and the sales stage. Greenhouse gas emissions are treated as an undesirable output of the services stage. This new three-stage strategic operating framework is a modification of existing models. A new model, Virtual Frontier Network Range Adjusted Measure with weak disposability, is proposed to evaluate the efficiencies of 22 international airlines, from 2008 to 2012. The results show that the new model can establish more reasonable rankings and confirm new benchmarking airlines and that inclusion in the European Union’s Emissions Trading Scheme has had little influence on the improvement of airline energy efficiency.
Journal: Transportation Planning and Technology
Pages: 479-504
Issue: 4
Volume: 40
Year: 2017
Month: 5
X-DOI: 10.1080/03081060.2017.1300244
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1300244
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Handle: RePEc:taf:transp:v:40:y:2017:i:4:p:479-504
Template-Type: ReDIF-Article 1.0
Author-Name: Ali Gholami
Author-X-Name-First: Ali
Author-X-Name-Last: Gholami
Author-Name: Zong Tian
Author-X-Name-First: Zong
Author-X-Name-Last: Tian
Title: Increasing the accuracy of loop detector counts using adaptive neural fuzzy inference system and genetic programming
Abstract:
Loop detectors are devices that are most commonly used for obtaining data at intersections. Multiple detectors are usually required to monitor a location, and this reduces the accuracy of detectors for collecting traffic volumes. The purpose of this paper is to increase the accuracy of loop detector counts using Adaptive Neural Fuzzy Inference System (ANFIS) and Genetic Programming (GP) based on detector volume and occupancy. These methods do not need microscopic analysis and are easy to employ. Four approaches for one intersection are used in a case study. Results show that the models can improve intersection detector counts significantly. Results also show that ANFIS produces more accurate counts compared to regression and GP.
Journal: Transportation Planning and Technology
Pages: 505-522
Issue: 4
Volume: 40
Year: 2017
Month: 5
X-DOI: 10.1080/03081060.2017.1300241
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1300241
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Handle: RePEc:taf:transp:v:40:y:2017:i:4:p:505-522
Template-Type: ReDIF-Article 1.0
Author-Name: Haitao Yu
Author-X-Name-First: Haitao
Author-X-Name-Last: Yu
Author-Name: Ming Zhang
Author-X-Name-First: Ming
Author-X-Name-Last: Zhang
Author-Name: Hao Pang
Author-X-Name-First: Hao
Author-X-Name-Last: Pang
Title: Evaluation of transit proximity effects on residential land prices: an empirical study in Austin, Texas
Abstract:
The Austin MetroRail line in Texas, U.S.A. began operations in 2010 and since then transit-oriented development projects have been fuelled around train stations. Traditional location theory holds that proximity to a transit station should be capitalized into land prices, and numerous empirical studies have demonstrated the effects with mixed results. However, to date no empirical study has investigated this relationship between the newly built rail line and land prices in Austin. This study fills the research gap and suggests a positive effect associated with transit proximity by employing spatial hedonic models. This study also contributes to the existing literature especially in the context of Texas cities where there is a lack of relevant research on transit-capitalization-related topics, and provides insights for decision-makers with different perspectives regarding further rail investment or transportation financing strategies such as value capture programs.
Journal: Transportation Planning and Technology
Pages: 841-854
Issue: 8
Volume: 40
Year: 2017
Month: 11
X-DOI: 10.1080/03081060.2017.1355880
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1355880
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Handle: RePEc:taf:transp:v:40:y:2017:i:8:p:841-854
Template-Type: ReDIF-Article 1.0
Author-Name: Michael J. Clay
Author-X-Name-First: Michael J.
Author-X-Name-Last: Clay
Author-Name: Arnold Valdez
Author-X-Name-First: Arnold
Author-X-Name-Last: Valdez
Author-Name: Alex Norr
Author-X-Name-First: Alex
Author-X-Name-Last: Norr
Author-Name: Samuel M. Otterstrom
Author-X-Name-First: Samuel M.
Author-X-Name-Last: Otterstrom
Title: Uncertainty analysis of the large zone economic module of the simple, efficient, elegant, and effective model (SEM) of land use and transportation
Abstract:
Integrated land use and transportation forecasting models are used to assist decision-makers in the policy analysis and infrastructure capital improvement selection process. These models are typically given precise, point-estimate inputs that are mathematically linked, through a series of submodels, to forecasted model outputs. These point-estimate inputs represent an unrealistic level of precision and a growing body of research is focusing on statistical techniques to model uncertainty in model inputs and parameters and tracking the effects of this uncertainty through the various submodels to the model outputs. This paper presents an uncertainty analysis of the Large Zone Economic Module (LZEM) of the Simple, Efficient, Elegant, and Effective Model (SE3M) of land use and transportation. Three case-study implementations of the model are used to obtain a reasonably sound approximation of how uncertainty affects LZEM outputs: Guam, Puerto Rico, and Oahu, Hawaii. These case studies were the subject of an early transferability study with SE3M and were selected based on both their insularity and diverse physical, economic, and demographic geographies. The findings of this research demonstrate that LZEM has a robust framework, with the potential to estimate error both in the positive and negative direction under uncertain input/parameter conditions.
Journal: Transportation Planning and Technology
Pages: 855-874
Issue: 8
Volume: 40
Year: 2017
Month: 11
X-DOI: 10.1080/03081060.2017.1355881
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1355881
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Handle: RePEc:taf:transp:v:40:y:2017:i:8:p:855-874
Template-Type: ReDIF-Article 1.0
Author-Name: David P. Ashmore
Author-X-Name-First: David P.
Author-X-Name-Last: Ashmore
Author-Name: Nicola Christie
Author-X-Name-First: Nicola
Author-X-Name-Last: Christie
Author-Name: Nicholas A. Tyler
Author-X-Name-First: Nicholas A.
Author-X-Name-Last: Tyler
Title: Symbolic transport choice across national cultures: theoretical considerations for research design
Abstract:
A recently empirically isolated latent variable in transport choice is symbolism, which examines what people believe their transport choices say to others about them and how they are judged in a social context. Whilst it is well established that symbolism differs vertically across different socio-economic groups within a country, very little work has been done on how symbolism in transport may differ between similar individuals across nations as a function of national cultural values, and how this may manifest itself in transport choices. If significant differences were to be found then this could have impacts for transport policy formulation and transfer. This paper explores and discusses these issues and concludes that the initial goal of any research into symbolic transport choices across cultures is theoretical fertility, and this is best achieved by adopting Lakatosian research programmes, using theory-driven thematic analysis to develop theoretical models for testing.
Journal: Transportation Planning and Technology
Pages: 875-900
Issue: 8
Volume: 40
Year: 2017
Month: 11
X-DOI: 10.1080/03081060.2017.1355882
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1355882
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Handle: RePEc:taf:transp:v:40:y:2017:i:8:p:875-900
Template-Type: ReDIF-Article 1.0
Author-Name: Soheil Emamian
Author-X-Name-First: Soheil
Author-X-Name-Last: Emamian
Author-Name: Seyed Gholamreza Jalali Naini
Author-X-Name-First: Seyed Gholamreza
Author-X-Name-Last: Jalali Naini
Author-Name: Kamran Shahanaghi
Author-X-Name-First: Kamran
Author-X-Name-Last: Shahanaghi
Title: Application of particle swarm optimization and robust net present value for BOT-type contracts
Abstract:
Major infrastructure construction projects contracted to private companies by governments are important for maximizing profitability. This paper extends an existing build–operate–transfer (BOT) concession model (BOTCcM) for identifying the reasonable concession period which would be profitable both to the government and to the private sector. There are some major limitations with BOTCcM – for example, the total investment cost is pre-given and the impact of uncertainty of parameters affecting the concession period were not considered. In this research, the total investment cost is assumed as variable which should be optimally determined and the uncertainty of net cash flows is considered. Further, the proposed model is implemented to calculate the robust concession period and required capital for the construction period, using the obtained values and particle swarm optimization method.
Journal: Transportation Planning and Technology
Pages: 901-913
Issue: 8
Volume: 40
Year: 2017
Month: 11
X-DOI: 10.1080/03081060.2017.1355884
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1355884
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Handle: RePEc:taf:transp:v:40:y:2017:i:8:p:901-913
Template-Type: ReDIF-Article 1.0
Author-Name: Huanmei Qin
Author-X-Name-First: Huanmei
Author-X-Name-Last: Qin
Author-Name: Jianqiang Gao
Author-X-Name-First: Jianqiang
Author-X-Name-Last: Gao
Author-Name: Hongzhi Guan
Author-X-Name-First: Hongzhi
Author-X-Name-Last: Guan
Author-Name: Hongbo Chi
Author-X-Name-First: Hongbo
Author-X-Name-Last: Chi
Title: Estimating heterogeneity of car travelers on mode shifting behavior based on discrete choice models
Abstract:
In order to understand the mode shift behavior of car travelers and relieve traffic congestion, a Stated Preference survey has been conducted in the city of Ji'nan in China to analyze bus choice behavior and the heterogeneity of car travelers. Several discrete choice models, including multinomial logit, mixed logit and latent class model (LCM) are developed based on these survey data. A comparative analysis indicates that the LCM has the highest precision and is more suitable to analyze the heterogeneity of car travelers. The LCM divides car travelers into three classes. Different classes have different sets of influencing factors in the model. Policy recommendations are also proposed for those classes to promote bus shift from car travelers based on the model results. Finally, sensitivity analysis on parking fees and fuel cost is carried out on the LCMs under different bus service levels. Car travelers have different sensitivities to the influencing factors. The conclusions indicate that the LCM can reflect the heterogeneity and preferences of car travelers and can be used to understand how to shift the behavior of car travelers and make more effective traffic policy.
Journal: Transportation Planning and Technology
Pages: 914-927
Issue: 8
Volume: 40
Year: 2017
Month: 11
X-DOI: 10.1080/03081060.2017.1355886
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1355886
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Handle: RePEc:taf:transp:v:40:y:2017:i:8:p:914-927
Template-Type: ReDIF-Article 1.0
Author-Name: Oscar R. P. van Schaijk
Author-X-Name-First: Oscar R. P.
Author-X-Name-Last: van Schaijk
Author-Name: Hendrikus G. Visser
Author-X-Name-First: Hendrikus G.
Author-X-Name-Last: Visser
Title: Robust flight-to-gate assignment using flight presence probabilities
Abstract:
In this paper we present a novel method to improve the robustness of solutions to the Flight-to-Gate Assignment Problem (FGAP), with the aim to reduce the need for gate re-planning due to unpredicted flight schedule disturbances in the daily operations at an airport. We propose an approach in which the deterministic gate constraints are replaced by stochastic gate constraints that incorporate the inherent stochastic flight delays in such a way so as to ensure that the expected gate conflict probability of two flights assigned to the same gate at the same time does not exceed a user-specified value. The novel approach is integrated into an existing multiple time slot FGAP model that relies on a binary integer programming formulation and is tested using real-life data pertaining to Amsterdam Airport Schiphol. The results confirm that the proposed approach holds out great promise to improve the robustness of the FGAP solutions.
Journal: Transportation Planning and Technology
Pages: 928-945
Issue: 8
Volume: 40
Year: 2017
Month: 11
X-DOI: 10.1080/03081060.2017.1355887
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1355887
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Handle: RePEc:taf:transp:v:40:y:2017:i:8:p:928-945
Template-Type: ReDIF-Article 1.0
Author-Name: The Editors
Title: Editorial Board
Journal: Transportation Planning and Technology
Pages: ebi-ebi
Issue: 8
Volume: 40
Year: 2017
Month: 11
X-DOI: 10.1080/03081060.2017.1363993
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1363993
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Handle: RePEc:taf:transp:v:40:y:2017:i:8:p:ebi-ebi
Template-Type: ReDIF-Article 1.0
Author-Name: Fumiaki Demizu
Author-X-Name-First: Fumiaki
Author-X-Name-Last: Demizu
Author-Name: Yeun-Touh Li
Author-X-Name-First: Yeun-Touh
Author-X-Name-Last: Li
Author-Name: Jan-Dirk Schmöcker
Author-X-Name-First: Jan-Dirk
Author-X-Name-Last: Schmöcker
Author-Name: Toshiyuki Nakamura
Author-X-Name-First: Toshiyuki
Author-X-Name-Last: Nakamura
Author-Name: Nobuhiro Uno
Author-X-Name-First: Nobuhiro
Author-X-Name-Last: Uno
Title: Long-term impact of the Shinkansen on rail and air demand: analysis with data from Northeast Japan
Abstract:
This paper analyses how the high-speed rail construction in Northeast Japan (Tohoku) has affected total demand and interregional travel patterns. We use annual interregional passenger data from 1989 to 2012 and apply regression analysis with the demand between Tokyo and the Tohoku prefectures as the dependent variable. We distinguish particularly between the ‘Full-’ and the ‘Mini-’ Shinkansen, where the latter are branch services running with reduced speed. We find that the ‘Full-Shinkansen’ quickly increases rail and total public transport trips and generates additional rail demand year on year. The ‘Mini-Shinkansen’ impacts are less pronounced. Furthermore, our analysis shows that the Shinkansen has shifted some demand from air to rail once it started operation and increased rail share gradually. We therefore suggest that predictions of demand impacts should carefully distinguish immediate from gradual impacts. We also discuss differences in regional demand in that not all prefectures have gained equally from Shinkansen construction.
Journal: Transportation Planning and Technology
Pages: 741-756
Issue: 7
Volume: 40
Year: 2017
Month: 10
X-DOI: 10.1080/03081060.2017.1340023
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1340023
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Handle: RePEc:taf:transp:v:40:y:2017:i:7:p:741-756
Template-Type: ReDIF-Article 1.0
Author-Name: Qun Chen
Author-X-Name-First: Qun
Author-X-Name-Last: Chen
Author-Name: Shuangli Pan
Author-X-Name-First: Shuangli
Author-X-Name-Last: Pan
Title: Direct formulation and algorithms for the probit-based stochastic user equilibrium traffic assignment problem
Abstract:
This paper proposes simple and direct formulation and algorithms for the probit-based stochastic user equilibrium traffic assignment problem. It is only necessary to account for random variables independent of link flows by performing a simple transformation of the perceived link travel time with a normal distribution. At every iteration of a Monte-Carlo simulation procedure, the values of the random variables are sampled based on their probability distributions, and then a regular deterministic user equilibrium assignment is carried out to produce link flows. The link flows produced at each iteration of the Monte-Carlo simulation are averaged to yield the final flow pattern. Two test networks demonstrate that the proposed algorithms and the traditional algorithm (the Method of Successive Averages) produce similar results and that the proposed algorithms can be extended to the computation of the case in which the random error term depends on measured travel time.
Journal: Transportation Planning and Technology
Pages: 757-770
Issue: 7
Volume: 40
Year: 2017
Month: 10
X-DOI: 10.1080/03081060.2017.1340022
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1340022
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Handle: RePEc:taf:transp:v:40:y:2017:i:7:p:757-770
Template-Type: ReDIF-Article 1.0
Author-Name: Won Kyung Lee
Author-X-Name-First: Won Kyung
Author-X-Name-Last: Lee
Author-Name: So Young Sohn
Author-X-Name-First: So Young
Author-X-Name-Last: Sohn
Title: Taxi vacancy duration: a regression analysis
Abstract:
Taxi vacancy duration is a major efficiency measure for taxi services. A clear understanding of the various factors and their effect on vacancy duration is necessary for the optimal operational management of taxis. Previous research has only dealt with vacancy duration by assuming probability distributions and has not investigated heterogeneity in the data caused by various factors. We develop a parametric duration model using not only new operational characteristics but also variables associated with taxi demand, such as weather, land use, demographics, socioeconomic variables, and accessibility of public transportation. The model is applied to a large-scale New York City (NYC) taxi trip dataset that covers operations for 2013. The results show that all the attributes have significant associations with vacancy duration that follows a log-normal distribution. Our study is expected to help improve the efficiency of taxi operations by decreasing the time spent in vacant states.
Journal: Transportation Planning and Technology
Pages: 771-795
Issue: 7
Volume: 40
Year: 2017
Month: 10
X-DOI: 10.1080/03081060.2017.1340025
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1340025
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Handle: RePEc:taf:transp:v:40:y:2017:i:7:p:771-795
Template-Type: ReDIF-Article 1.0
Author-Name: Mohammed Hussaini
Author-X-Name-First: Mohammed
Author-X-Name-Last: Hussaini
Author-Name: Miklas Scholz
Author-X-Name-First: Miklas
Author-X-Name-Last: Scholz
Title: Exploring low carbon transition pathways for the UK road transport sector
Abstract:
This paper uses an analytical framework of multi-level and multi-phase perspectives to explore low carbon transition pathways for the UK road transport system. The work draws on the impact made by the national (UK) and regional (EU) low carbon policy instruments on the UK road sector. The results show that the transformation pathway, which is at the take-off phase on a large scale, is the only fully active pathway. The transformation is mainly characterized by the adoption of biofuel blends and hybrid electric vehicles, as well as niche technologies. For the emergence of an ideal low carbon road system in the UK, it is shown that the transformation pathway is insufficient and the likely pathway sequence to full decarbonization will be transformation-substitution-de-alignment/re-alignment. However, the dynamics that can favour a smooth process of this sequence will demand a range of active niche technologies and strong government intervention.
Journal: Transportation Planning and Technology
Pages: 796-811
Issue: 7
Volume: 40
Year: 2017
Month: 10
X-DOI: 10.1080/03081060.2017.1340024
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1340024
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Handle: RePEc:taf:transp:v:40:y:2017:i:7:p:796-811
Template-Type: ReDIF-Article 1.0
Author-Name: Pranamesh Chakraborty
Author-X-Name-First: Pranamesh
Author-X-Name-Last: Chakraborty
Author-Name: Partha Chakroborty
Author-X-Name-First: Partha
Author-X-Name-Last: Chakroborty
Title: Empirical analysis of short period traffic counts and their efficiency: the case of Indian traffic
Abstract:
Short period traffic counts (SPTCs) are conducted routinely to estimate the annual average daily traffic (AADT) at a particular site. This paper uses Indian traffic volume data to methodically and extensively study the effect of four aspects related to the design of SPTCs. These four aspects are: (i) for how long, (ii) on which days should SPTCs be carried out, (iii) how many times, and (iv) on which months should SPTCs be carried out? The analyses indicate that the best durations for conducting SPTCs are 3 days (starting with a Thursday) and 7 days, for total traffic and truck traffic, respectively. Further, these counts should be repeated twice a year keeping a separation of two months between the counts to obtain good estimates of AADT at minimal cost. An additional outcome of this study has been the determination of seasonal factor values for roads in developing economies, like India.
Journal: Transportation Planning and Technology
Pages: 812-827
Issue: 7
Volume: 40
Year: 2017
Month: 10
X-DOI: 10.1080/03081060.2017.1340021
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1340021
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Handle: RePEc:taf:transp:v:40:y:2017:i:7:p:812-827
Template-Type: ReDIF-Article 1.0
Author-Name: José Martins
Author-X-Name-First: José
Author-X-Name-Last: Martins
Author-Name: Rui Cunha Marques
Author-X-Name-First: Rui Cunha
Author-X-Name-Last: Marques
Author-Name: Carlos Oliveira Cruz
Author-X-Name-First: Carlos Oliveira
Author-X-Name-Last: Cruz
Author-Name: Álvaro Fonseca
Author-X-Name-First: Álvaro
Author-X-Name-Last: Fonseca
Title: Flexibility in planning and development of a container terminal: an application of an American-style call option
Abstract:
The prosperity and social progress of developed and developing economies is highly dependent on the existence of efficient transport infrastructure. Nevertheless, current budgetary constraints are jeopardizing the necessary investments in new or existing infrastructure. New models for planning and managing infrastructure are now necessary to overcome the lack of public economic resources available. Port infrastructure is no exception and, due to the vast number of uncertainties involving these projects, it is relevant to maximize the capture of the latent value of flexible options. Incorporating flexibility in these projects, prior to the implementation phase, can be a solution that allows port managers to address future uncertainties and mitigate risk exposure. This paper analyzes the incorporation of flexibility in port planning through the use of an American call option to the physical capacity expansion problem. The rationale is to implement a flexible expansion plan, through options that can be exercised at any given time, that are able to deal with uncertainty in demand. The paper uses a case study – Terminal Container of Ferrol, in Spain – and the results support the hypothesis that imbedded flexibility will robustly increase the net present value of the project.
Journal: Transportation Planning and Technology
Pages: 828-840
Issue: 7
Volume: 40
Year: 2017
Month: 10
X-DOI: 10.1080/03081060.2017.1340026
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1340026
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Handle: RePEc:taf:transp:v:40:y:2017:i:7:p:828-840
Template-Type: ReDIF-Article 1.0
Author-Name: Islam H. El-adaway
Author-X-Name-First: Islam H.
Author-X-Name-Last: El-adaway
Author-Name: Ibrahim Abotaleb
Author-X-Name-First: Ibrahim
Author-X-Name-Last: Abotaleb
Author-Name: Eric Vechan
Author-X-Name-First: Eric
Author-X-Name-Last: Vechan
Title: Identifying the most critical transportation intersections using social network analysis
Abstract:
Traffic congestion negatively impacts our society. Most of the traditional transportation planning techniques – though effective – require rigorous amounts of data and analysis which consumes time and resources. This paper uses social network analysis (SNA) to analyze transportation networks, and consequently corroborate the effectiveness of SNA as a complementary tool for improved transportation planning. After creating the connection between the language and concepts of SNA and those of transportation systems – as well as developing a model that utilizes different SNA centrality measures within the transportation context – the authors utilize SNA to investigate traffic networks in three case studies in the state of Louisiana, analyze the results and draw conclusions. To this effect, with minimal cost and time, the model identifies the most critical intersections that should be further investigated using traditional techniques. These results are in agreement with the findings of Louisiana’s Department of Transportation and Development.
Journal: Transportation Planning and Technology
Pages: 353-374
Issue: 4
Volume: 41
Year: 2018
Month: 5
X-DOI: 10.1080/03081060.2018.1453456
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1453456
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Handle: RePEc:taf:transp:v:41:y:2018:i:4:p:353-374
Template-Type: ReDIF-Article 1.0
Author-Name: Ryan Fries
Author-X-Name-First: Ryan
Author-X-Name-Last: Fries
Author-Name: Md Toushik Ahmed Niloy
Author-X-Name-First: Md Toushik Ahmed
Author-X-Name-Last: Niloy
Author-Name: Veda Vyas
Author-X-Name-First: Veda
Author-X-Name-Last: Vyas
Title: Real-time traveler information for urban arterials: a method for selecting metropolitan routes of significance
Abstract:
Although multi-criteria analysis (MCA) has been commonly used to guide transportation decisions related to traditional infrastructure, limited applications are reported for intelligent transportation systems. The objective of this study is to apply MCA for selecting arterial routes for real-time traveler information, to conform with recent US federal regulations. This study applies the method in two metropolitan areas and the paper describes which criteria were chosen and how important each were considered. In all, this study guided the selection of seven arterial routes for deployment of real-time traveler information collection and dissemination. This study demonstrates how a transportation agency can apply MCA for traveler information planning and the method provides value for other agencies seeking to come into compliance with traveler information regulations.
Journal: Transportation Planning and Technology
Pages: 375-388
Issue: 4
Volume: 41
Year: 2018
Month: 5
X-DOI: 10.1080/03081060.2018.1453460
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1453460
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Handle: RePEc:taf:transp:v:41:y:2018:i:4:p:375-388
Template-Type: ReDIF-Article 1.0
Author-Name: Yi Qi
Author-X-Name-First: Yi
Author-X-Name-Last: Qi
Author-Name: Yubian Wang
Author-X-Name-First: Yubian
Author-X-Name-Last: Wang
Author-Name: Xiaoming Sammy Chen
Author-X-Name-First: Xiaoming Sammy
Author-X-Name-Last: Chen
Author-Name: Ruey Long Cheu
Author-X-Name-First: Ruey Long
Author-X-Name-Last: Cheu
Author-Name: Lei Yu
Author-X-Name-First: Lei
Author-X-Name-Last: Yu
Author-Name: Hualiang Teng
Author-X-Name-First: Hualiang
Author-X-Name-Last: Teng
Title: Methods of dropping auxiliary lanes at freeway weaving segments
Abstract:
Auxiliary lanes connecting freeway entrance and exit ramps provide additional space for entering and exiting vehicles to change lanes. The method of dropping auxiliary lanes is critical in the design of freeway auxiliary lanes. This study investigates the performance of different methods of dropping auxiliary lanes. Case studies were conducted at two selected freeway segments with successive entrance or exit ramps in the City of Houston. Traffic simulation analysis results of these two case studies show that additional operational benefits can be achieved by extending an auxiliary lane beyond the freeway weaving segment. The study also found that if the weaving segment is followed by an entrance/exit ramp and this ramp has high traffic volume, it can be less operationally favorable to extend and terminate the auxiliary lane at this entrance/exit ramp location. Instead, dropping the auxiliary lane before this entrance/exit ramp represents a more operationally effective option.
Journal: Transportation Planning and Technology
Pages: 389-401
Issue: 4
Volume: 41
Year: 2018
Month: 5
X-DOI: 10.1080/03081060.2018.1453462
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1453462
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Handle: RePEc:taf:transp:v:41:y:2018:i:4:p:389-401
Template-Type: ReDIF-Article 1.0
Author-Name: Jen-Jia Lin
Author-X-Name-First: Jen-Jia
Author-X-Name-Last: Lin
Author-Name: Chun-Tien Lin
Author-X-Name-First: Chun-Tien
Author-X-Name-Last: Lin
Author-Name: Cheng-Min Feng
Author-X-Name-First: Cheng-Min
Author-X-Name-Last: Feng
Title: Locating rental stations and bikeways in a public bike system
Abstract:
To determine the spatial distribution of rental stations and bikeways in a public bike system, this paper proposes a facility location and network design model. The model is developed as a multi-objective programing problem that considers four objectives (minimizing cyclist risk, maximizing cyclist comfort, minimizing adverse impacts on traffic and maximizing service coverage) and multiple constraints (monetary budget, network connectivity, station spacing, bikeway types, station number and value ranges of decision variables). The ε-constraint method solves the programing problem for the public bike system in Daan District, Taipei City, Taiwan. The nine non-dominated alternatives generated are all markedly better than existing locations of rental stations and bikeways. Scenario analysis results indicate that increasing the construction budget for bikeways significantly improves cyclist safety and comfort whilst increasing the adverse impact on traffic. Planners can use this model to develop public bike systems that spatially integrate rental stations and bikeway networks.
Journal: Transportation Planning and Technology
Pages: 402-420
Issue: 4
Volume: 41
Year: 2018
Month: 5
X-DOI: 10.1080/03081060.2018.1453915
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1453915
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Handle: RePEc:taf:transp:v:41:y:2018:i:4:p:402-420
Template-Type: ReDIF-Article 1.0
Author-Name: Francesco Corman
Author-X-Name-First: Francesco
Author-X-Name-Last: Corman
Author-Name: Egidio Quaglietta
Author-X-Name-First: Egidio
Author-X-Name-Last: Quaglietta
Author-Name: Rob M. P. Goverde
Author-X-Name-First: Rob M. P.
Author-X-Name-Last: Goverde
Title: Automated real-time railway traffic control: an experimental analysis of reliability, resilience and robustness
Abstract:
Railway transportation provides sustainable, fast and safe transport. Its attractiveness is linked to a broad concept of service reliability: the capability to adhere to a timetable in the presence of delays perturbing traffic. To counter these phenomena, real-time rescheduling can be used, changing train orders and times, according to rules of thumb, or mathematical optimization models, minimizing delays or maximizing punctuality. In the literature, different indices of robustness, reliability and resilience are defined for railway traffic. We review and evaluate these indices applied to railway traffic control, comparing optimal rescheduling approaches such as Open Loop and Closed Loop control, to a typical First-Come-First-Served dispatching rule, and following the timetable (no-action). This experimental analysis clarifies the benefits of automated traffic control for infrastructure managers, railway operators and passengers. The timetable order, normally used in assessing a-priori reliability, systematically overestimates unreliability of operations that can be reduced by real-time control.
Journal: Transportation Planning and Technology
Pages: 421-447
Issue: 4
Volume: 41
Year: 2018
Month: 5
X-DOI: 10.1080/03081060.2018.1453916
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1453916
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Handle: RePEc:taf:transp:v:41:y:2018:i:4:p:421-447
Template-Type: ReDIF-Article 1.0
Author-Name: Dantong Wang
Author-X-Name-First: Dantong
Author-X-Name-Last: Wang
Author-Name: Chun Yuan
Author-X-Name-First: Chun
Author-X-Name-Last: Yuan
Title: Modeling and forecasting household energy consumption and related CO2 emissions integrating UrbanSim and transportation models: an Atlanta BeltLine case study
Abstract:
Reducing energy consumption and controlling greenhouse gas emissions are key challenges for urban residents. Because urban areas are complex and dynamic, affected by many driving factors in terms of growth, development, and demographics, urban planners and policy makers need a sophisticated understanding of how residential lifestyle, transportation behavior, land-use changes, and land-use policies affect residential energy consumption and associated CO2 emissions. This study presents an approach to modeling and simulating future household energy consumption and CO2 emissions over a 30-year planning period, using an energy-consumption regression approach based on the UrbanSim model. Outputs from UrbanSim for a baseline scenario are compared with those from a no-transportation-demand model and an Atlanta BeltLine scenario. The results indicate that incorporation of a travel demand model can make the simulation more reasonable and that the BeltLine project holds potential for curbing energy consumption and CO2 emissions.
Journal: Transportation Planning and Technology
Pages: 448-462
Issue: 4
Volume: 41
Year: 2018
Month: 5
X-DOI: 10.1080/03081060.2018.1453917
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1453917
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Handle: RePEc:taf:transp:v:41:y:2018:i:4:p:448-462
Template-Type: ReDIF-Article 1.0
Author-Name: Mohamed Hussein
Author-X-Name-First: Mohamed
Author-X-Name-Last: Hussein
Author-Name: Tarek Sayed
Author-X-Name-First: Tarek
Author-X-Name-Last: Sayed
Title: Validation of an agent-based microscopic pedestrian simulation model in a crowded pedestrian walking environment
Abstract:
This study validates a recently developed agent-based pedestrian micro-simulation model in a crowded walking environment. The model is applied to simulate pedestrian movements at a major street in the downtown Vancouver area. The street was closed for traffic to allow people attending a social event to leave the area safely. The calibration of model parameters is conducted using a Genetic Algorithm that minimizes the error between simulated and actual trajectories, acquired by means of computer vision. Validation results confirm the accuracy of the simulated trajectories, as the average error between the actual and simulated trajectories is found to be 0.28 m, and the average error in walking speed is just 0.06 m/s. Furthermore, results show that the model is capable of reproducing the actual behavior of pedestrians during different interactions with high accuracy (more than 94% for most interactions).
Journal: Transportation Planning and Technology
Pages: 1-22
Issue: 1
Volume: 42
Year: 2019
Month: 1
X-DOI: 10.1080/03081060.2018.1541279
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1541279
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Handle: RePEc:taf:transp:v:42:y:2019:i:1:p:1-22
Template-Type: ReDIF-Article 1.0
Author-Name: Miriam Pirra
Author-X-Name-First: Miriam
Author-X-Name-Last: Pirra
Author-Name: Marco Diana
Author-X-Name-First: Marco
Author-X-Name-Last: Diana
Title: A study of tour-based mode choice based on a Support Vector Machine classifier
Abstract:
A new approach in recognizing travel mode choice patterns is proposed, based on the Support Vector Machine classification technique. The tour-based travel demand dataset that is analysed is for New York State, derived from the 2009 U.S. National Household Travel Survey. The main features characterizing each tour are the means used, travel-related variables and socioeconomic aspects. Results obtained demonstrate the ability to predict to some extent, in real settings where car use dominates, which tours are likely to be made by public transport or non-motorized means. Moreover, the flexibility of the technique allows assessing the predictive power of each feature according to the combination of travel means used in different tours. Potential applications range from activity-based travel choice simulators to search engines supporting personalized travel planners – in general, whenever ‘best guesses’ on mode choice patterns have to be made quickly on large amounts of data prejudicing the possibility of setting up a statistical model.
Journal: Transportation Planning and Technology
Pages: 23-36
Issue: 1
Volume: 42
Year: 2019
Month: 1
X-DOI: 10.1080/03081060.2018.1541280
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1541280
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Handle: RePEc:taf:transp:v:42:y:2019:i:1:p:23-36
Template-Type: ReDIF-Article 1.0
Author-Name: Daniel Ruben Pinchasik
Author-X-Name-First: Daniel Ruben
Author-X-Name-Last: Pinchasik
Author-Name: Inger Beate Hovi
Author-X-Name-First: Inger Beate
Author-X-Name-Last: Hovi
Author-Name: Paal Brevik Wangsness
Author-X-Name-First: Paal Brevik
Author-X-Name-Last: Wangsness
Author-Name: Aud Tennøy
Author-X-Name-First: Aud
Author-X-Name-Last: Tennøy
Title: Environmental and transport effects of warehouse relocationing: evidence from Norway
Abstract:
Reducing traffic volumes and CO2-emissions from freight transport has proven difficult in many countries. Although the increasing suburbanization of warehouses is seen as a relevant land use trend, comprehensive analyses of their impact remain scarce. This study uses real data in modeling transport, costs, environmental and modal effects from warehouse relocations around Oslo and Trondheim (Norway). Results indicate that for Oslo, traffic performance (ton-km), CO2-emissions, and transport costs increase following warehouse suburbanization. For Trondheim, transport performance and CO2-emissions increase less, while transport costs decrease marginally. We conclude that specific case characteristics (geography and trade patterns) are important in determining the strength and direction of effects, and expect that common concomitant developments (warehouse centralization and consolidation) would lead to more pronounced results. Our findings confirm some, but challenge other, findings from the relatively scarcely literature available. Finally, the study's more general insights and observations can help advance similar analyses beyond Norway.
Journal: Transportation Planning and Technology
Pages: 37-55
Issue: 1
Volume: 42
Year: 2019
Month: 1
X-DOI: 10.1080/03081060.2018.1541281
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1541281
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Handle: RePEc:taf:transp:v:42:y:2019:i:1:p:37-55
Template-Type: ReDIF-Article 1.0
Author-Name: Md Shoaib Chowdhury
Author-X-Name-First: Md Shoaib
Author-X-Name-Last: Chowdhury
Author-Name: Steven I-Jy Chien
Author-X-Name-First: Steven I-Jy
Author-X-Name-Last: Chien
Title: Optimizing fare and headway to facilitate timed transfer considering demand elasticity
Abstract:
Fare and service frequency significantly affect transit users’ willingness to ride, as well as the supplier's revenue and operating costs. To stimulate demand and increase productivity, it is desirable to reduce the transfer time from one route to another via efficient service coordination, such as timed transfer. Since demand varies both temporally and spatially, it may not be cost-effective to synchronize vehicle arrivals on all connecting routes at a terminal. In this paper, we develop a schedule coordination model to optimize fare and headway considering demand elasticity. The headway of each route is treated as an integer-multiple of a base common headway. A discounted (reduced) fare is applied as an incentive to encourage ridership and, thus, stimulate public transit usage. The objective of the proposed coordination model is used to maximize the total profit subject to the service constraint. A numerical example is given to demonstrate the applicability of the proposed model. The results show that the optimized fare and headway may be carefully applied to yield the maximum profit. The relationship between the decision variables and model parameters is explored in the sensitivity analysis.
Journal: Transportation Planning and Technology
Pages: 56-69
Issue: 1
Volume: 42
Year: 2019
Month: 1
X-DOI: 10.1080/03081060.2018.1541282
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1541282
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Handle: RePEc:taf:transp:v:42:y:2019:i:1:p:56-69
Template-Type: ReDIF-Article 1.0
Author-Name: De Zhao
Author-X-Name-First: De
Author-X-Name-Last: Zhao
Author-Name: Wei Wang
Author-X-Name-First: Wei
Author-X-Name-Last: Wang
Author-Name: Chenyang Li
Author-X-Name-First: Chenyang
Author-X-Name-Last: Li
Author-Name: Yanjie Ji
Author-X-Name-First: Yanjie
Author-X-Name-Last: Ji
Author-Name: Xiaojian Hu
Author-X-Name-First: Xiaojian
Author-X-Name-Last: Hu
Author-Name: Wenfu Wang
Author-X-Name-First: Wenfu
Author-X-Name-Last: Wang
Title: Recognizing metro-bus transfers from smart card data
Abstract:
Transfer points between metro and bus services remain an elusive, yet critical junction for transportation practitioners. Based on massive Smart Card (SC) data, previous studies apply a one-size-fits-all criterion to discriminate between transfers. However, this is not sufficiently convincing for different transfer pairs. To counter this problem, this study applies an association rules algorithm and cluster analysis to recognize metro-to-bus transfers using SC data, and demonstrates transfer recognition in a case study based on SC data collected during a week in Nanjing, China. It is shown that 85% of the transfer-recognition results are quite stable through the whole week, and the median transfer time between metro and bus is below 20 min. The method proposed in this study can be used to identify the busiest transfer points and to obtain average transfer times, which facilitates a smarter and more efficient public transit network.
Journal: Transportation Planning and Technology
Pages: 70-83
Issue: 1
Volume: 42
Year: 2019
Month: 1
X-DOI: 10.1080/03081060.2018.1541283
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1541283
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Handle: RePEc:taf:transp:v:42:y:2019:i:1:p:70-83
Template-Type: ReDIF-Article 1.0
Author-Name: Ernesto Cipriani
Author-X-Name-First: Ernesto
Author-X-Name-Last: Cipriani
Author-Name: Gaetano Fusco
Author-X-Name-First: Gaetano
Author-X-Name-Last: Fusco
Author-Name: Sergio Maria Patella
Author-X-Name-First: Sergio Maria
Author-X-Name-Last: Patella
Author-Name: Marco Petrelli
Author-X-Name-First: Marco
Author-X-Name-Last: Petrelli
Author-Name: Luca Quadrifoglio
Author-X-Name-First: Luca
Author-X-Name-Last: Quadrifoglio
Title: Transit network design for small-medium size cities
Abstract:
This paper proposes a novel heuristic to solve the network design problem for public transport in small-medium size cities. Such cities can be defined as those with a diameter of a few kilometers with up to a few hundred thousand residents. These urban centers present a specific spatial configuration affecting the land use and mobility system. Transportation demand is widespread in origin and concentrated in a small number of attraction points close to each other. This particular structure of demand (‘many-to-few’) suggests the need for specific methodologies for the design of a transit system at a network level. In this paper, such design methodologies are defined in terms of models and solution procedures and tested on a selected case study. The solution methods show promising results. The key variables of the model are the routes and their frequencies. The constraints of the problem affect the overall demand to be served, the quality of the proposed service (transfer, load factors) and the definition of routes.
Journal: Transportation Planning and Technology
Pages: 84-97
Issue: 1
Volume: 42
Year: 2019
Month: 1
X-DOI: 10.1080/03081060.2018.1541284
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1541284
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Handle: RePEc:taf:transp:v:42:y:2019:i:1:p:84-97
Template-Type: ReDIF-Article 1.0
Author-Name: Sufian Ikhmeis
Author-X-Name-First: Sufian
Author-X-Name-Last: Ikhmeis
Author-Name: Sanchoy Das
Author-X-Name-First: Sanchoy
Author-X-Name-Last: Das
Title: An objective model for collaborative flight scheduling in a single mega-hub network
Abstract:
Single mega-hub (SMH) airports are among the highest passenger volume airports in the world. Eight operational features that distinguish an SMH airport are identified, including collaborative flight scheduling between the airline and airport. This paper develops an objective function to direct collaborative flight scheduling. Three cost objectives are modeled, each of which focusses on a specific variable cost to the airport: passenger waiting time, passenger volume in the terminal, and ground activity imbalance. The scheduling objective is modeled as a function of (i) waiting time for each passenger, (ii) passenger count in the airport terminal, and (iii) the ground activity peak deviation from the balanced rate. Model application is demonstrated on the schedule of an airline operating 184 daily departures from a SMH. Results show the model can be used to reduce the airport’s variable costs. Rescheduling departure times for 6.5% of flights generated a 2.8% cost reduction.
Journal: Transportation Planning and Technology
Pages: 1-19
Issue: 1
Volume: 43
Year: 2020
Month: 1
X-DOI: 10.1080/03081060.2019.1701642
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1701642
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Handle: RePEc:taf:transp:v:43:y:2020:i:1:p:1-19
Template-Type: ReDIF-Article 1.0
Author-Name: Varun Raturi
Author-X-Name-First: Varun
Author-X-Name-Last: Raturi
Author-Name: Ashish Verma
Author-X-Name-First: Ashish
Author-X-Name-Last: Verma
Title: A game-theoretic approach to analyse inter-modal competition between high-speed rail and airlines in the Indian context
Abstract:
In this paper, a game-theoretic framework is applied in order to model the competition scenario between high-speed rail (HSR) and airlines in the Indian context and assess the impact of speed and passengers’ characteristics on the equilibrium of the game. The competition is modelled in terms of the fare and frequency offered by the operators to maximize their profits. The speed of HSR is taken as an additional strategic variable in the game with three levels of high speed: low, medium, high. A three-stage game is formulated with the entrant playing its speed strategy in the first stage followed by optimal fare and frequency selection by both the modes. Passengers are considered to be heterogeneous in nature by assuming a continuous distribution of the value of time. Numerical simulations indicate that the dominant strategy for airlines and HSR is based on accommodation and medium speed, respectively.
Journal: Transportation Planning and Technology
Pages: 20-47
Issue: 1
Volume: 43
Year: 2020
Month: 1
X-DOI: 10.1080/03081060.2020.1701666
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1701666
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Handle: RePEc:taf:transp:v:43:y:2020:i:1:p:20-47
Template-Type: ReDIF-Article 1.0
Author-Name: Baocheng Zhang
Author-X-Name-First: Baocheng
Author-X-Name-Last: Zhang
Author-Name: Zhijian Ye
Author-X-Name-First: Zhijian
Author-X-Name-Last: Ye
Author-Name: Wang Lili
Author-X-Name-First: Wang
Author-X-Name-Last: Lili
Title: Airport airside congestion pricing considering price discrimination between aircraft type under a Stackelberg game
Abstract:
This paper considers flight price discrimination between different aircraft types in an analysis of airport congestion under a Stackelberg game. In addition, we introduce a method to determine the specific total flight volume under which there should be no congestion toll because there is no congestion when total flight volume is low. Furthermore, congestion tolls should be levied on all airlines when total real flight production is between the equilibrium flights in a joint-profit maximization scenario and equilibrium flights in a self-profit maximization scenario.
Journal: Transportation Planning and Technology
Pages: 48-61
Issue: 1
Volume: 43
Year: 2020
Month: 1
X-DOI: 10.1080/03081060.2020.1701706
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1701706
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Handle: RePEc:taf:transp:v:43:y:2020:i:1:p:48-61
Template-Type: ReDIF-Article 1.0
Author-Name: Somayeh Alizadeh
Author-X-Name-First: Somayeh
Author-X-Name-Last: Alizadeh
Author-Name: Mahsa Safi
Author-X-Name-First: Mahsa
Author-X-Name-Last: Safi
Title: A new model for efficiency evaluation of a bus fleet by window analysis in DEA and data mining
Abstract:
Bus fleet performance and efficiency evaluation is one of the issues that have attracted the attention of policy makers and urban managers, who seek to improve the service level for their citizens. In this paper, a hybrid framework is proposed using the Data Envelopment Analysis (DEA) method and data mining techniques to conduct a window analysis for performance evaluation, using the bus fleet in Tehran as a case study. First, the DEA model for the efficiency evaluation of the bus fleet is implemented. To this end, a window analysis is carried out to compare bus fleet performance with the performance of other bus fleets and its own performance for various time periods. The results from the DEA window analysis are then used as the input to the data mining classification method to forecast the efficiency of the bus fleet. Several classification techniques are employed and various methods are used to identify the best algorithm. In this regard, the C5.0 algorithm outperforms the others, and finally the rules hidden in the data set are extracted to forecast the bus fleet efficiency.
Journal: Transportation Planning and Technology
Pages: 62-77
Issue: 1
Volume: 43
Year: 2020
Month: 1
X-DOI: 10.1080/03081060.2020.1701750
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1701750
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Handle: RePEc:taf:transp:v:43:y:2020:i:1:p:62-77
Template-Type: ReDIF-Article 1.0
Author-Name: Pan Shang
Author-X-Name-First: Pan
Author-X-Name-Last: Shang
Author-Name: Ruimin Li
Author-X-Name-First: Ruimin
Author-X-Name-Last: Li
Author-Name: Liya Yang
Author-X-Name-First: Liya
Author-X-Name-Last: Yang
Title: Demand-driven timetable and stop pattern cooperative optimization on an urban rail transit line
Abstract:
This study proposes a modelling framework for the demand-driven train timetable and stop pattern cooperative optimization problem on an urban rail transit line. By embedding the train stop pattern into the timetable optimization process, we consider the minimization of total passenger travel time. A binary variable determination (BVD) method, which can transform complicated linear constraints into simple logical constraints, is proposed to calculate the large number of binary variables easily, and a genetic algorithm (GA) based on the BVD method is designed to solve the proposed model. A case study of the Batong line in the Beijing subway network is conducted to test the proposed model and algorithm. This study can provide beneficial advice for the operator to improve the operational service of urban rail transit lines.
Journal: Transportation Planning and Technology
Pages: 78-100
Issue: 1
Volume: 43
Year: 2020
Month: 1
X-DOI: 10.1080/03081060.2020.1701757
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1701757
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Handle: RePEc:taf:transp:v:43:y:2020:i:1:p:78-100
Template-Type: ReDIF-Article 1.0
Author-Name: Chanwoon Park
Author-X-Name-First: Chanwoon
Author-X-Name-Last: Park
Author-Name: Justin S. Chang
Author-X-Name-First: Justin S.
Author-X-Name-Last: Chang
Title: Spatial equity of excess commuting by transit in Seoul
Abstract:
Excess commuting refers to wasteful journey-to-work travel, resulting from the non-optimal spatial configuration of residences and workplaces. Traditionally, this concept has been employed to analyse the efficiency of the urban structure. This paper, however, examines the spatial equity of excess commuting, which is an essential component of a sustainable urban transport system. The Gini coefficient and GIS mapping are used to measure this spatial equity, supported by data from Seoul’s Tmoney transit card system. Results show the vulnerable regions in terms of horizontal equity of excess commuting in Seoul. Transit supply and jobs-housing balance are identified as the core factors affecting excess commuting in relation to spatial disparities. However, an evaluation of Seoul’s ambitious plan of light-rail construction is considered to be not very helpful in mitigating the current spatial inequality of excess commuting in the city.
Journal: Transportation Planning and Technology
Pages: 101-112
Issue: 1
Volume: 43
Year: 2020
Month: 1
X-DOI: 10.1080/03081060.2020.1701760
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1701760
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Handle: RePEc:taf:transp:v:43:y:2020:i:1:p:101-112
Template-Type: ReDIF-Article 1.0
Author-Name: Lambros K. Mitropoulos
Author-X-Name-First: Lambros K.
Author-X-Name-Last: Mitropoulos
Author-Name: Panos D. Prevedouros
Author-X-Name-First: Panos D.
Author-X-Name-Last: Prevedouros
Title: Incorporating sustainability assessment in transportation planning: an urban transportation vehicle-based approach
Abstract:
Environmental assessments are on the critical path for the development of land, infrastructure and transportation systems. These assessments are based on planning methods which, in turn, are subject to continuous enhancement. The substantial impacts of transportation on environment, society and economy strongly urge the incorporation of sustainability into transportation planning. Two major developments that enhance transportation sustainability are new fuels and vehicle power systems. Traditional planning ignores technology including the large differences among conventional, hybrid and alternative fuel vehicles and buses. The introduction of alternative fuel vehicles is likely to change the traditional transportation planning process because different characteristics need to be taken into account. In this study a sustainability framework is developed that enables assessment of transportation vehicle characteristics. Identified indicators are grouped in five sustainability dimensions (Environment, Technology, Energy, Economy and Users). Our methodology joins life cycle impacts and a set of quantified indicators to assess the sustainability performance of seven popular light-duty vehicles and two types of transit buses. Bus Rapid Transit receives the highest sustainability index and the pickup truck the lowest. Hybrid electric vehicles are found to have the highest sustainability index among all other passenger vehicles. A sensitivity analysis shows the proposed sustainability dimensions produce robust sustainability assessment for several weighting scenarios. The results are both technology and policy sensitive, thus useful for both short- and long-term planning.
Journal: Transportation Planning and Technology
Pages: 439-463
Issue: 5
Volume: 39
Year: 2016
Month: 7
X-DOI: 10.1080/03081060.2016.1174363
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1174363
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Handle: RePEc:taf:transp:v:39:y:2016:i:5:p:439-463
Template-Type: ReDIF-Article 1.0
Author-Name: Weiquan Zhu
Author-X-Name-First: Weiquan
Author-X-Name-Last: Zhu
Author-Name: Xiaoguang Yang
Author-X-Name-First: Xiaoguang
Author-X-Name-Last: Yang
Author-Name: John Preston
Author-X-Name-First: John
Author-X-Name-Last: Preston
Title: Efficiency measurement of bus routes and exogenous operating environment effects on efficiency
Abstract:
This study develops an independent efficiency measurement model framework of bus routes, so as to treat preferably the heterogeneous outputs in a data envelopment analysis (DEA)-based efficiency measurement. It then introduces four new exogenous operating environment factors at the microscopic level of bus routes, and applies the three-stage DEA approach to incorporate operating environment effects and statistical noise into the efficiency measurement framework. The main purpose is to measure impartially the managerial efficiency of bus routes, purged of operating environment effects and statistical noise, and additionally to investigate the operating environment effects on efficiency. An empirical analysis, based on 39 routes operated in Jiangyin City, China, is presented. The principal finding is that the adoption of the independent efficiency measurement model framework is reasonable and has many virtues. Moreover, the proposed approach could substantially provide decision support both for regulators and for producers of bus services. In addition, the operating environment does indeed significantly affect operating efficiency and quality efficiency, especially the latter.
Journal: Transportation Planning and Technology
Pages: 464-483
Issue: 5
Volume: 39
Year: 2016
Month: 7
X-DOI: 10.1080/03081060.2016.1174364
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1174364
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Handle: RePEc:taf:transp:v:39:y:2016:i:5:p:464-483
Template-Type: ReDIF-Article 1.0
Author-Name: Yuntao Guo
Author-X-Name-First: Yuntao
Author-X-Name-Last: Guo
Author-Name: Srinivas Peeta
Author-X-Name-First: Srinivas
Author-X-Name-Last: Peeta
Author-Name: Fred Mannering
Author-X-Name-First: Fred
Author-X-Name-Last: Mannering
Title: Rail-truck multimodal freight collaboration: a statistical analysis of freight-shipper perspectives
Abstract:
Due to the effects of congestion, capacity reduction of truck-freight carriers, growing freight transportation demand, and increasing social and environmental concerns, there is a critical need for freight shippers to improve shipping quality and reduce transportation costs. Rail-truck multimodal freight collaboration can potentially address this need. In this study, we explore freight-shipper perspectives relating to the factors that may foster or impede their usage of rail-truck multimodal freight collaboration services, and the correlations of their operational and behavioral characteristics with these factors. The study provides insights to rail and truck carriers on collaboration mechanisms that can address the needs of freight shippers, including adopting synergistic technology to improve in-transit visibility, accommodating non-containerized cargo, improving the transshipment process, designing service quality control strategies, and constructing investment and revenue-sharing plans.
Journal: Transportation Planning and Technology
Pages: 484-506
Issue: 5
Volume: 39
Year: 2016
Month: 7
X-DOI: 10.1080/03081060.2016.1174365
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1174365
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Handle: RePEc:taf:transp:v:39:y:2016:i:5:p:484-506
Template-Type: ReDIF-Article 1.0
Author-Name: Xinyuan Chen
Author-X-Name-First: Xinyuan
Author-X-Name-Last: Chen
Author-Name: Zhiyuan Liu
Author-X-Name-First: Zhiyuan
Author-X-Name-Last: Liu
Author-Name: Graham Currie
Author-X-Name-First: Graham
Author-X-Name-Last: Currie
Title: Optimizing location and capacity of rail-based Park-and-Ride sites to increase public transport usage
Abstract:
This paper presents a new methodology to identify optimal locations and capacity for rail-based Park-and-Ride (P&R) sites to increase public transport mode share. P&R is usually taken as an important component of policies for the sustainable development of urban transport systems. However, previous studies reveal that arbitrarily determined P&R sites may act to reduce public transport commuting. This paper proposes a methodology for the optimal location and capacity design of P&R sites, with the aim of enhancing public transport usage. A Combined Mode Split and Traffic Assignment (CMSTA) model is proposed for the P&R scheme. Taking the CMSTA model as the lower level, a bi-level mathematical programming model is then built to establish the optimal location and capacity of P&R sites. A heuristic genetic algorithm is adopted to solve this model. Finally, a network example is adopted to test numerically the proposed models and algorithms.
Journal: Transportation Planning and Technology
Pages: 507-526
Issue: 5
Volume: 39
Year: 2016
Month: 7
X-DOI: 10.1080/03081060.2016.1174366
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1174366
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Handle: RePEc:taf:transp:v:39:y:2016:i:5:p:507-526
Template-Type: ReDIF-Article 1.0
Author-Name: Jelena Simićević
Author-X-Name-First: Jelena
Author-X-Name-Last: Simićević
Author-Name: Nada Milosavljević
Author-X-Name-First: Nada
Author-X-Name-Last: Milosavljević
Author-Name: Vladimir Djoric
Author-X-Name-First: Vladimir
Author-X-Name-Last: Djoric
Title: Gender differences in travel behaviour and willingness to adopt sustainable behaviour
Abstract:
This paper presents pioneering research on gender differences in travel behaviour in southeastern Europe. The study analyses the socio-economic and main travel characteristics (particularly parking) of men and women. Additionally, it examines the influence of parking demand management measures on their behaviour, in terms of the willingness of men and women to reduce car use and to adopt more sustainable behaviour. The results reveal significant differences between genders in most of the characteristics examined. Moreover, it is shown that women are less car dependent and more sensitive to parking pricing and, therefore, more willing to replace a car journey with public transport. These findings suggest that gender should be an essential parameter when user behaviour is examined and modelled. Furthermore, the results indicate that gender differences must be considered when transport policy is created to affect the behaviour of men and women equally. The achievement of social equality is one of the primary objectives of sustainable development.
Journal: Transportation Planning and Technology
Pages: 527-537
Issue: 5
Volume: 39
Year: 2016
Month: 7
X-DOI: 10.1080/03081060.2016.1174367
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1174367
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Handle: RePEc:taf:transp:v:39:y:2016:i:5:p:527-537
Template-Type: ReDIF-Article 1.0
Author-Name: Suresh Malodia
Author-X-Name-First: Suresh
Author-X-Name-Last: Malodia
Author-Name: Harish Singla
Author-X-Name-First: Harish
Author-X-Name-Last: Singla
Title: A study of carpooling behaviour using a stated preference web survey in selected cities of India
Abstract:
This paper analyses how people perceive the idea of carpooling and evaluate preferences while making a decision to join a carpool. Analysing data from a web-based stated preference survey in India reveals that cognitive attitudes play a significant role in evaluating the perceived advantages and disadvantages of carpooling whereas intentions to carpool are associated with perceived negative evaluations. A factor analysis identifies two latent attitudinal factors: a ‘time–convenience’ factor that discourages carpooling and a ‘private–public cost’ factor that encourages carpooling. The study analyses the influential attributes – extra travel time, walking time to reach meeting point, waiting time at pickup point and cost savings – as explanatory variables for the utility of carpooling. Cost savings prove to be the most significant attribute when combined with other attributes, followed by extra travel time. The study provides the implications to policy-makers of designing promotional tools to improve the propensity of carpooling among single occupant vehicle drivers.
Journal: Transportation Planning and Technology
Pages: 538-550
Issue: 5
Volume: 39
Year: 2016
Month: 7
X-DOI: 10.1080/03081060.2016.1174368
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1174368
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Handle: RePEc:taf:transp:v:39:y:2016:i:5:p:538-550
Template-Type: ReDIF-Article 1.0
Author-Name: The Editors
Title: Corrigendum
Journal: Transportation Planning and Technology
Pages: iii-iii
Issue: 5
Volume: 39
Year: 2016
Month: 7
X-DOI: 10.1080/03081060.2016.1185832
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1185832
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Handle: RePEc:taf:transp:v:39:y:2016:i:5:p:iii-iii
Template-Type: ReDIF-Article 1.0
Author-Name: Jonathan Levine
Author-X-Name-First: Jonathan
Author-X-Name-Last: Levine
Author-Name: Moira Zellner
Author-X-Name-First: Moira
Author-X-Name-Last: Zellner
Author-Name: María Arquero de Alarcón
Author-X-Name-First: María
Author-X-Name-Last: Arquero de Alarcón
Author-Name: Yoram Shiftan
Author-X-Name-First: Yoram
Author-X-Name-Last: Shiftan
Author-Name: Dean Massey
Author-X-Name-First: Dean
Author-X-Name-Last: Massey
Title: The impact of automated transit, pedestrian, and bicycling facilities on urban travel patterns
Abstract:
This article reports on an integrated modeling exercise, conducted on behalf of the US Federal Highway Administration, on the potential for frequent automated transit shuttles (‘community transit’), in conjunction with improvements to the walking and cycling environment, to overcome the last-mile problem of regional rail transit and thereby divert travelers away from car use. A set of interlocking investigations was undertaken, including development of urban visualizations, distribution of a home-based survey supporting a stated-preference model of mode choice, development of an agent-based model, and alignment of the mode-choice and agent-based models. The investigations were designed to produce best-case estimates of the impact of community transit and ancillary improvements in reducing car use. The models in combination suggested significant potential to divert drivers, especially in areas that were relatively transit-poor to begin with.
Journal: Transportation Planning and Technology
Pages: 463-480
Issue: 5
Volume: 41
Year: 2018
Month: 7
X-DOI: 10.1080/03081060.2018.1468968
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1468968
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Handle: RePEc:taf:transp:v:41:y:2018:i:5:p:463-480
Template-Type: ReDIF-Article 1.0
Author-Name: Geoffrey Dudley
Author-X-Name-First: Geoffrey
Author-X-Name-Last: Dudley
Author-Name: David Banister
Author-X-Name-First: David
Author-X-Name-Last: Banister
Title: Expertise in decision-making for large infrastructure projects: from UK trunk roads to High Speed Rail 2
Abstract:
At the decision-making stage, a large-scale infrastructure project is essentially a broad concept, and this means the expert analyses will differ from each other and become contested over time, leading to the emergence of rival narratives. It is only where there is a limited range of expert analyses that the bases for decision-making will remain relatively clear-cut. Over time the contested nature of expertise can significantly inhibit the construction of effective narratives, either for or against the project, and also make decision-making more complex and problematic. Decision makers may also seek greater clarification through the construction of narratives that rise above these disputed areas of expertise, and the scientific evidence becomes less important. This paper examines the changing nature of contested expertise through a comparative analysis of political decision-making between UK trunk roads policy and the case of High Speed Rail 2, through the framework of epistemic communities.
Journal: Transportation Planning and Technology
Pages: 481-496
Issue: 5
Volume: 41
Year: 2018
Month: 7
X-DOI: 10.1080/03081060.2018.1468969
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1468969
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Handle: RePEc:taf:transp:v:41:y:2018:i:5:p:481-496
Template-Type: ReDIF-Article 1.0
Author-Name: Xinjun Lai
Author-X-Name-First: Xinjun
Author-X-Name-Last: Lai
Author-Name: Zhi Li
Author-X-Name-First: Zhi
Author-X-Name-Last: Li
Author-Name: Jun Li
Author-X-Name-First: Jun
Author-X-Name-Last: Li
Title: Modeling risks and uncertainties in residents’ license choice behaviors under a vehicle restriction policy
Abstract:
Understanding residents’ perception and reaction to vehicle restriction policies is significant for transportation management. However, few studies have examined it from a behavioral and disaggregated perspective, particularly from people’s responses to uncertainties in choices, and their consequent behaviors under potential risks. This paper proposes a multi-level nested logit method to model sequential choice behaviors considering uncertainties under a vehicle license restriction policy. Prospect theory is applied, where a novel reference point is proposed based on instances of ‘whether a risk happens’ rather than a hard number which is difficult to obtain in reality. A case study in Guangzhou, China is presented, where a vehicle restriction policy has been applied for three years. Residents’ attitudes and preferences under uncertainties and different risks are revealed, and these factors are significant in predicting people’s future decisions while policy changes.
Journal: Transportation Planning and Technology
Pages: 497-518
Issue: 5
Volume: 41
Year: 2018
Month: 7
X-DOI: 10.1080/03081060.2018.1468973
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1468973
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Handle: RePEc:taf:transp:v:41:y:2018:i:5:p:497-518
Template-Type: ReDIF-Article 1.0
Author-Name: Shunan Yu
Author-X-Name-First: Shunan
Author-X-Name-Last: Yu
Author-Name: Zhongzhen Yang
Author-X-Name-First: Zhongzhen
Author-X-Name-Last: Yang
Title: Optimizing express parcel networks and delivery schemes subject to timeliness tolerances
Abstract:
The ‘first come first served’ (FCFS) strategy usually adopted by air express companies does not consider delivery time tolerances and induces underuse of some facilities. This study relaxes the time tolerances and tackles the issue of parcel deliveries and transport network design for an express delivery company. In other words, it determines simultaneously the route loops of company-owned cargo aircraft, the amount of cargo space chartered for each link and the parcel delivery paths. Using a case study in which parcels must be delivered between 14 cities served by the SF Air Express Company, we find that FCFS is not the best approach for minimizing costs and that express companies can optimize both their delivery schemes and networks subject to some relaxed time tolerances.
Journal: Transportation Planning and Technology
Pages: 519-535
Issue: 5
Volume: 41
Year: 2018
Month: 7
X-DOI: 10.1080/03081060.2018.1469284
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1469284
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Handle: RePEc:taf:transp:v:41:y:2018:i:5:p:519-535
Template-Type: ReDIF-Article 1.0
Author-Name: Mohammad Hesam Hafezi
Author-X-Name-First: Mohammad Hesam
Author-X-Name-Last: Hafezi
Author-Name: Naznin Sultana Daisy
Author-X-Name-First: Naznin
Author-X-Name-Last: Sultana Daisy
Author-Name: Lei Liu
Author-X-Name-First: Lei
Author-X-Name-Last: Liu
Author-Name: Hugh Millward
Author-X-Name-First: Hugh
Author-X-Name-Last: Millward
Title: Daily activity and travel sequences of students, faculty and staff at a large Canadian university
Abstract:
This paper examines the activity engagement, sequencing and timing of activities for student, faculty and staff commuter groups at the largest university in the Maritime Provinces of Canada. The daily activity patterns of all university community groups are modeled using the classification and regression tree classifier algorithm. The data used for this study are derived from the Environmentally Aware Travel Diary Survey (EnACT) conducted in spring 2016 at Dalhousie University, Nova Scotia. Results show that there are significant differences in activity and travel behavior between university population segments and the general population in the region, and between campus groups. For example, students participate in more recreation activities compared to faculty and staff. They also take more trips to and from campus, and are more flexible in their scheduling of trips. The insights gained from this study will provide helpful information for promoting sustainability across university campuses, and for development of campus-based travel demand management strategies.
Journal: Transportation Planning and Technology
Pages: 536-556
Issue: 5
Volume: 41
Year: 2018
Month: 7
X-DOI: 10.1080/03081060.2018.1469286
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1469286
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Handle: RePEc:taf:transp:v:41:y:2018:i:5:p:536-556
Template-Type: ReDIF-Article 1.0
Author-Name: Dick T. Apronti
Author-X-Name-First: Dick T.
Author-X-Name-Last: Apronti
Author-Name: Khaled Ksaibati
Author-X-Name-First: Khaled
Author-X-Name-Last: Ksaibati
Title: Four-step travel demand model implementation for estimating traffic volumes on rural low-volume roads in Wyoming
Abstract:
This study develops a four-step travel demand model for estimating traffic volumes for low-volume roads in Wyoming. The study utilizes urban travel behavior parameters and processes modified to reflect the rural and low-volume nature of Wyoming local roads. The methodology disaggregates readily available census block data to create transportation analysis zones adequate for estimating traffic on low-volume rural roads. After building an initial model, the predicted and actual traffic volumes are compared to develop a calibration factor for adjusting trip rates. The adjusted model is verified by comparing estimated and actual traffic volumes for 100 roads. The R-square value from fitting predicted to actual traffic volumes is determined to be 74% whereas the Percent Root Mean Square Error is found to be 50.3%. The prediction accuracy for the four-step travel demand model is found to be better than a regression model developed in a previous study.
Journal: Transportation Planning and Technology
Pages: 557-571
Issue: 5
Volume: 41
Year: 2018
Month: 7
X-DOI: 10.1080/03081060.2018.1469288
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1469288
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Handle: RePEc:taf:transp:v:41:y:2018:i:5:p:557-571
Template-Type: ReDIF-Article 1.0
Author-Name: Zhixiang Hou
Author-X-Name-First: Zhixiang
Author-X-Name-Last: Hou
Author-Name: Yucai Zhou
Author-X-Name-First: Yucai
Author-X-Name-Last: Zhou
Author-Name: Ronghua Du
Author-X-Name-First: Ronghua
Author-X-Name-Last: Du
Title: Special issue on intelligent transportation systems, big data and intelligent technology
Abstract:
Based on the increasing demands of transportation development, the concept of an Intelligent Transportation System (ITS) has received increasing attention in both academic and industry arenas. It integrates information, communications, computers and other technologies, and applies them in the field of transportation to build an integrated system of people, roads and vehicles by utilizing advanced data communication technologies. It can establish a large, fully functioning, real-time, accurate and efficient transportation management system. Intelligent transportation systems shift the focus from road managers to road users. In order to achieve this purpose, intelligent transportation systems use advanced technology to provide drivers with convenient information to help reduce traffic congestion and to increase available road capacity. This special issue is dedicated to exploring the most recent advances in intelligent transportation systems and big data based on intelligent technology.
Journal: Transportation Planning and Technology
Pages: 747-750
Issue: 8
Volume: 39
Year: 2016
Month: 11
X-DOI: 10.1080/03081060.2016.1231893
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1231893
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Handle: RePEc:taf:transp:v:39:y:2016:i:8:p:747-750
Template-Type: ReDIF-Article 1.0
Author-Name: Gang Tao
Author-X-Name-First: Gang
Author-X-Name-Last: Tao
Author-Name: Huansheng Song
Author-X-Name-First: Huansheng
Author-X-Name-Last: Song
Author-Name: Jun Liu
Author-X-Name-First: Jun
Author-X-Name-Last: Liu
Author-Name: Jiao Zou
Author-X-Name-First: Jiao
Author-X-Name-Last: Zou
Author-Name: Yanxiang Chen
Author-X-Name-First: Yanxiang
Author-X-Name-Last: Chen
Title: A traffic accident morphology diagnostic model based on a rough set decision tree
Abstract:
To build a traffic safety feature model and to quantify accident influences caused by some traffic violation behaviors of drivers, an accident diagnostic decision-making model is established. For the purpose of diagnosing accident morphologies, rough set theory is applied and the influence of traffic factors of different accident morphologies is quantified through calculating the degree of attribute importance, selecting core traffic factors and adopting a C4.5 decision tree algorithm. In the paper, road traffic accident data from 2008 to 2013 in Anhui Province are used. Typical rules are selected, targeted strategy proposals are put forward, and then, a scientific and reasonable diagnostic basis is provided for the diagnosis of traffic safety risks and the prediction of potential traffic accidents.
Journal: Transportation Planning and Technology
Pages: 751-758
Issue: 8
Volume: 39
Year: 2016
Month: 11
X-DOI: 10.1080/03081060.2016.1231894
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1231894
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Handle: RePEc:taf:transp:v:39:y:2016:i:8:p:751-758
Template-Type: ReDIF-Article 1.0
Author-Name: Feigang Tan
Author-X-Name-First: Feigang
Author-X-Name-Last: Tan
Author-Name: Ling Huang
Author-X-Name-First: Ling
Author-X-Name-Last: Huang
Author-Name: Cong Zhai
Author-X-Name-First: Cong
Author-X-Name-Last: Zhai
Author-Name: Minglei Song
Author-X-Name-First: Minglei
Author-X-Name-Last: Song
Author-Name: Rong Zhuang
Author-X-Name-First: Rong
Author-X-Name-Last: Zhuang
Author-Name: Weiming Liu
Author-X-Name-First: Weiming
Author-X-Name-Last: Liu
Title: Specific object re-identification across non-overlapping camera views in traffic accidents
Abstract:
To improve the robustness of object re-identification in complex outdoor environments for traffic safety systems, a novel object re-identification algorithm based on the Individual Similarity Difference Feature (ISDF) method is proposed. This method can provide reliable support for specific object tracking during traffic accidents in video surveillance networks. First, all the images in the gallery are divided into three parts according to a segmentation ratio, and six types of feature for each part are extracted. Second, prototypes for each feature of the three parts are constructed. Third, the image sequence of the same person is grouped, and then the ISDF is extracted from each image. Finally, we use the AdaBoost classifier to judge whether the two objects are matched and then output the final results. Extensive experiments are conducted on two public data sets (Eidgenössische Technische Hochschule Zürich and multi-camera object tracking). The performance of the object re-identification method is superior to the latest methods.
Journal: Transportation Planning and Technology
Pages: 759-767
Issue: 8
Volume: 39
Year: 2016
Month: 11
X-DOI: 10.1080/03081060.2016.1231895
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1231895
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Handle: RePEc:taf:transp:v:39:y:2016:i:8:p:759-767
Template-Type: ReDIF-Article 1.0
Author-Name: Jian Gao
Author-X-Name-First: Jian
Author-X-Name-Last: Gao
Author-Name: Fan Zhang
Author-X-Name-First: Fan
Author-X-Name-Last: Zhang
Author-Name: Ling Sun
Author-X-Name-First: Ling
Author-X-Name-Last: Sun
Author-Name: Honghai Li
Author-X-Name-First: Honghai
Author-X-Name-Last: Li
Title: A study of traveler behavior under traffic information-provided conditions in the Beijing area
Abstract:
The quality of traffic information has become one of the most important factors that can affect the distribution of urban and highway traffic flow by changing the travel route, transportation mode, and travel time of travelers and trips. Past research has revealed traveler behavior when traffic information is provided. This paper summarizes the related study achievements from a survey conducted in the Beijing area with a specially designed questionnaire considering traffic conditions and the provision of traffic information services. With the survey data, a Logit model is estimated, and the results indicate that travel time can be considered the most significant factor that affects highway travel mode choice between private vehicles and public transit, whereas trip purpose is the least significant factor for private vehicle usage for both urban and highway travel.
Journal: Transportation Planning and Technology
Pages: 768-778
Issue: 8
Volume: 39
Year: 2016
Month: 11
X-DOI: 10.1080/03081060.2016.1231896
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1231896
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Handle: RePEc:taf:transp:v:39:y:2016:i:8:p:768-778
Template-Type: ReDIF-Article 1.0
Author-Name: Yao-hua Li
Author-X-Name-First: Yao-hua
Author-X-Name-Last: Li
Author-Name: Feng You
Author-X-Name-First: Feng
Author-X-Name-Last: You
Author-Name: Kang Chen
Author-X-Name-First: Kang
Author-X-Name-Last: Chen
Author-Name: Ling Huang
Author-X-Name-First: Ling
Author-X-Name-Last: Huang
Author-Name: Jian-min Xu
Author-X-Name-First: Jian-min
Author-X-Name-Last: Xu
Title: A real-time system for monitoring driver fatigue
Abstract:
This paper presents a nonintrusive prototype computer vision system for real-time fatigue driving detection. First, we use Haar-like features to detect a driver’s face and conduct tracking by introducing an improved Camshift algorithm. Second, we propose a new eye-detection algorithm that combines the Adaboost algorithm with template matching to reduce computational costs and add an eye-validation process to increase the accuracy of the detection rate. Third, and different from other methods focusing on detecting eyes using the ‘bright pupil’ effect, which only works well only for certain constrained lighting conditions, our method detects and estimates the iris center in the hue (H) channel of the hue, saturation, value color space and fits the iris with an ellipse. After extracting the eye fatigue features, we calculate the PERCLOS measurement for fatigue evaluation. This system has been tested on the IMM Face Database, which contains more than 200 faces, and in a real-time test. The experimental results show that the system possesses good accuracy and robustness.
Journal: Transportation Planning and Technology
Pages: 779-790
Issue: 8
Volume: 39
Year: 2016
Month: 11
X-DOI: 10.1080/03081060.2016.1231897
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1231897
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Handle: RePEc:taf:transp:v:39:y:2016:i:8:p:779-790
Template-Type: ReDIF-Article 1.0
Author-Name: Yang Zhang
Author-X-Name-First: Yang
Author-X-Name-Last: Zhang
Author-Name: Dong-Rong Xin
Author-X-Name-First: Dong-Rong
Author-X-Name-Last: Xin
Author-Name: Yi-Hu Wu
Author-X-Name-First: Yi-Hu
Author-X-Name-Last: Wu
Title: Pedestrian detection for traffic safety based on Accumulate Binary Haar features and improved deep belief network algorithm
Abstract:
In order to improve traffic safety and protect pedestrians, an improved and efficient pedestrian detection method for auto driver assistance systems is proposed. Firstly, an improved Accumulate Binary Haar (ABH) feature extraction algorithm is proposed. In this novel feature, Haar features keep only the ordinal relationship named by binary Haar features. Then, the feature brings in the idea of a Local Binary Pattern (LBP), assembling several neighboring binary Haar features to improve discriminating power and reduce the effect of illumination. Next, a pedestrian classification method based on an improved deep belief network (DBN) classification algorithm is proposed. An improved method of input is constructed using a Restricted Bolzmann Machine (RBM) with T distribution function visible layer nodes, which can convert information on pedestrian features to a Bernoulli distribution, and the Bernoulli distribution can then be used for recognition. In addition, a middle layer of the RBM structure is created, which achieves data transfer between the hidden layer structure and keeps the key information. Finally, the cost-sensitive Support Vector Machine (SVM) classifier is used for the output of the classifier, which could address the class-imbalance problem. Extensive experiments show that the improved DBN pedestrian detection method is better than other shallow classic algorithms, and the proposed method is effective and sufficiently feasible for pedestrian detection in complex urban environments.
Journal: Transportation Planning and Technology
Pages: 791-800
Issue: 8
Volume: 39
Year: 2016
Month: 11
X-DOI: 10.1080/03081060.2016.1231898
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1231898
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Handle: RePEc:taf:transp:v:39:y:2016:i:8:p:791-800
Template-Type: ReDIF-Article 1.0
Author-Name: Cong Zhai
Author-X-Name-First: Cong
Author-X-Name-Last: Zhai
Author-Name: Weiming Liu
Author-X-Name-First: Weiming
Author-X-Name-Last: Liu
Author-Name: Feigang Tan
Author-X-Name-First: Feigang
Author-X-Name-Last: Tan
Author-Name: Ling Huang
Author-X-Name-First: Ling
Author-X-Name-Last: Huang
Author-Name: Minglei Song
Author-X-Name-First: Minglei
Author-X-Name-Last: Song
Title: Feedback control strategy of a new car-following model based on reducing traffic accident rates
Abstract:
To reduce the traffic accident death rate effectively and alleviate the traffic congestion phenomenon, this study proposes a new type of car-following model under the influence of drivers’ time-varying delay response time. Based on Lyapunov function theory, this paper reduces the traffic accident rate problem to the stability issues of the new model. By constructing suitable Lyapunov functions and using the linear matrix inequality method, the stability problem of the new car-following model is studied. The model, under the action of the controller, can effectively restrain traffic congestion. Using the traffic accident rate model proposed by Solomon, compared with the car-following model without the controller, the model under the controller shows a stronger convergence. This also means that the traffic congestion phenomenon has been effectively suppressed while greatly reducing the mortality rate of traffic accidents.
Journal: Transportation Planning and Technology
Pages: 801-812
Issue: 8
Volume: 39
Year: 2016
Month: 11
X-DOI: 10.1080/03081060.2016.1231900
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1231900
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Handle: RePEc:taf:transp:v:39:y:2016:i:8:p:801-812
Template-Type: ReDIF-Article 1.0
Author-Name: Jia-ni Zhao
Author-X-Name-First: Jia-ni
Author-X-Name-Last: Zhao
Author-Name: Jing Lv
Author-X-Name-First: Jing
Author-X-Name-Last: Lv
Title: Comparing prediction methods for maritime accidents
Abstract:
The purpose of maritime accident prediction is to reasonably forecast an accident occurring in the future. In determining the level of maritime traffic management safety, it is important to analyze development trends of existing traffic conditions. Common prediction methods for maritime accidents include regression analysis, grey system models (GM) and exponential smoothing. In this study, a brief introduction is provided that discusses the aforementioned prediction models, including the associated methods and characteristics of each analysis, which form the basis for an attempt to apply a residual error correction model designed to optimize the grey system model. Based on the results, in which the model is verified using two different types of maritime accident data (linear smooth type and random-fluctuation type, respectively), the prediction accuracy and the applicability were validated. A discussion is then presented on how to apply the Markov model as a way to optimize the grey system model. This method, which proved to be correct in terms of prediction accuracy and applicability, is explored through empirical analysis. Although the accuracy of the residual error correction model is usually higher than the accuracy of the original GM (1,1), the effect of the Markov correction model is not always superior to the original GM (1,1). In addition, the accuracy of the former model depends on the characteristics of the original data, the status partition and the determination method for the status transition matrix.
Journal: Transportation Planning and Technology
Pages: 813-825
Issue: 8
Volume: 39
Year: 2016
Month: 11
X-DOI: 10.1080/03081060.2016.1231901
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1231901
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Handle: RePEc:taf:transp:v:39:y:2016:i:8:p:813-825
Template-Type: ReDIF-Article 1.0
Author-Name: The Editors
Title: Editorial Board
Journal: Transportation Planning and Technology
Pages: ebi-ebi
Issue: 8
Volume: 39
Year: 2016
Month: 11
X-DOI: 10.1080/03081060.2016.1238596
File-URL: http://hdl.handle.net/10.1080/03081060.2016.1238596
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Handle: RePEc:taf:transp:v:39:y:2016:i:8:p:ebi-ebi
Template-Type: ReDIF-Article 1.0
Author-Name: Tae-Hyoung Tommy Gim
Author-X-Name-First: Tae-Hyoung Tommy
Author-X-Name-Last: Gim
Title: Investigating travel utility elements in association with travel time and mode choice: the case of Seoul, South Korea
Abstract:
In this paper, travel utility is conceptualized into the elements of disutility, or derived utility, and positive utility, which includes synergistic and intrinsic utility, and then analyzed in terms of the effects of these elements on weekly travel time according to three travel modes – the automobile, public transit, and nonmotorized modes – and on the choice of the annually most used mode. Linear regressions on mode-specific travel time and a multinomial logistic regression on mode choice show that, compared to life situation and land-use characteristics, utility elements are among the strongest travel determinants. Specifically, while some utility elements contribute exclusively to shifting the mode of travel and others to increasing nonmotorized travel, modal shift is most strongly affected by a disutility element, trip timeliness, and the increase in nonmotorized travel by a positive utility element, amenities.
Journal: Transportation Planning and Technology
Pages: 641-660
Issue: 6
Volume: 40
Year: 2017
Month: 8
X-DOI: 10.1080/03081060.2017.1325136
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1325136
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Handle: RePEc:taf:transp:v:40:y:2017:i:6:p:641-660
Template-Type: ReDIF-Article 1.0
Author-Name: Masayoshi Tanishita
Author-X-Name-First: Masayoshi
Author-X-Name-Last: Tanishita
Author-Name: Bert van Wee
Author-X-Name-First: Bert
Author-X-Name-Last: van Wee
Title: Impact of regional population density on walking behavior
Abstract:
Land use can influence walking (measured by the number of steps) and so the health of people. This paper presents the result of empirical research on the impact of regional population densities (inhabitants per inhabitable area) on the number of steps (all steps, both outdoors and indoors). With data collected from almost 11,000 respondents in 148 Japanese regions, we estimate polynomial regression models, the total number of steps being the dependent variable and densities being the main independent variable. Regional population density significantly affects the number of steps after controlling for individual and household attributes. The estimated population density that maximizes the number of steps is around 11,000 persons/km2. Increasing densities, up to levels of around 11,000 inhabitants/km2, could increase walking and consequently the health of inhabitants. The population density elasticity of the number of steps is 0.046–0.049 in a simple log linear regression model without a peak.
Journal: Transportation Planning and Technology
Pages: 661-678
Issue: 6
Volume: 40
Year: 2017
Month: 8
X-DOI: 10.1080/03081060.2017.1325137
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1325137
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Handle: RePEc:taf:transp:v:40:y:2017:i:6:p:661-678
Template-Type: ReDIF-Article 1.0
Author-Name: Xuesong Feng
Author-X-Name-First: Xuesong
Author-X-Name-Last: Feng
Author-Name: Mitsuru Saito
Author-X-Name-First: Mitsuru
Author-X-Name-Last: Saito
Author-Name: Quan Wang
Author-X-Name-First: Quan
Author-X-Name-Last: Wang
Title: Reducing average comprehensive travel cost by rationally allocating trips to different travel modes
Abstract:
To study the effect of different transport policies on reducing the average comprehensive travel cost (CTC) of all travel modes, by increasing public transport modal share and decreasing car trips, an optimization model is developed based on travel cost utility. A nested logit model is applied to analyze trip modal split. A Genetic Algorithm is then used to determine the implementation of optimal solutions in which various transport policies are applied in order to reduce average CTC. The central urban region of Beijing is selected as the study area in this research. Different policies are analyzed for comparison, focusing on their optimal impacts on minimizing the average CTC utility of all travel modes by rationally allocating trips to different travel modes in the study area. It is found that the proposed optimization model provides a reasonable indication of the effect of policies applied.
Journal: Transportation Planning and Technology
Pages: 679-688
Issue: 6
Volume: 40
Year: 2017
Month: 8
X-DOI: 10.1080/03081060.2017.1325144
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1325144
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Handle: RePEc:taf:transp:v:40:y:2017:i:6:p:679-688
Template-Type: ReDIF-Article 1.0
Author-Name: Xuemei Fu
Author-X-Name-First: Xuemei
Author-X-Name-Last: Fu
Author-Name: Zhicai Juan
Author-X-Name-First: Zhicai
Author-X-Name-Last: Juan
Title: An integrated framework to jointly model decisions of activity time allocation and work-related travel
Abstract:
Five activity-travel choice dimensions, including three activity time allocation decisions and two work-related travel choices, are jointly modeled using the structural equation model in order to accommodate the complex interactions among them. Via a two-step estimation approach, the behavioral pattern underlying activity-travel decisions is explicitly revealed. For example, it demonstrates the priority with respect to subsistence activity, maintenance activity, and recreation activity due to a limited time budget; and bus commuting behavior positively influences the time allocated to the maintenance activity. In addition, two attitudinal factors are constructed and confirmed to have important effects on the five behavioral dimensions, which contribute to reveal the decision-making process from the perspective of psychology. This comprehensive framework is expected to provide important implications for mobility management and urban planning.
Journal: Transportation Planning and Technology
Pages: 689-705
Issue: 6
Volume: 40
Year: 2017
Month: 8
X-DOI: 10.1080/03081060.2017.1325145
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1325145
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Handle: RePEc:taf:transp:v:40:y:2017:i:6:p:689-705
Template-Type: ReDIF-Article 1.0
Author-Name: Nam Seok Kim
Author-X-Name-First: Nam Seok
Author-X-Name-Last: Kim
Author-Name: Seung Sub Yoon
Author-X-Name-First: Seung Sub
Author-X-Name-Last: Yoon
Author-Name: Donghyung Yook
Author-X-Name-First: Donghyung
Author-X-Name-Last: Yook
Title: Performance comparison between pedestrian push-button and pre-timed pedestrian crossings at midblock: a Korean case study
Abstract:
Walking has been highlighted as an independent transportation mode as well as an access/egress mode to/from public transit to encourage the use of more sustainable transport systems. However, walking does not seem to have priority over other transportation modes, especially in areas where various modes of movement are in conflict. The pedestrian push-button system seems to be a solution to distribute the right of way. The focus of this study is on the performance issue of the pedestrian push-button. Specifically, this study deals with issues related to mid-block crossings and attempts to answer two questions: whose waiting time is longer at pre-timed and push-button crossings, pedestrians, or vehicles? and which system – pre-timed or push-button – is better in terms of total waiting time? According to our simulation analyses, if the pedestrian flow rate is less than 120, 85, and 70 ped/h for two-, three-, and four-lane roads, respectively, the push-button system is recommended.
Journal: Transportation Planning and Technology
Pages: 706-721
Issue: 6
Volume: 40
Year: 2017
Month: 8
X-DOI: 10.1080/03081060.2017.1325146
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1325146
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Handle: RePEc:taf:transp:v:40:y:2017:i:6:p:706-721
Template-Type: ReDIF-Article 1.0
Author-Name: Xia Luo
Author-X-Name-First: Xia
Author-X-Name-Last: Luo
Author-Name: Shuozhi Liu
Author-X-Name-First: Shuozhi
Author-X-Name-Last: Liu
Author-Name: Peter J. Jin
Author-X-Name-First: Peter J.
Author-X-Name-Last: Jin
Author-Name: Xiaowen Jiang
Author-X-Name-First: Xiaowen
Author-X-Name-Last: Jiang
Author-Name: Hongfei Ding
Author-X-Name-First: Hongfei
Author-X-Name-Last: Ding
Title: A connected-vehicle-based dynamic control model for managing the bus bunching problem with capacity constraints
Abstract:
This paper describes a connected-vehicle-based system architecture which can provide more precise and comprehensive information on bus movements and passenger status. Then a dynamic control method is proposed using connected vehicle data. Traditionally, the bus bunching problem has been formulated into one of two types of optimization problem. The first uses total passenger time cost as the objective function and capacity, safe headway, and other factors as constraints. Due to the large number of scenarios considered, this type of framework is inefficient for real-time implementation. The other type uses headway adherence as the objective and applies a feedback control framework to minimize headway variations. Due to the simplicity in the formulation and solution algorithms, the headway-based models are more suitable for real-time transit operations. However, the headway-based feedback control framework proposed in the literature still assumes homogeneous conditions at all bus stations, and does not consider restricting passenger loads within the capacity constraints. In this paper, a dynamic control framework is proposed to improve not only headway adherence but also maintain the stability of passenger load within bus capacity in both homogenous and heterogeneous situations at bus stations. The study provides the stability conditions for optimal control with heterogeneous bus conditions and derives optimal control strategies to minimize passenger transit cost while maintaining vehicle loading within capacity constraints. The proposed model is validated with a numerical analysis and case study based on field data collected in Chengdu, China. The results show that the proposed model performs well on high-demand bus routes.
Journal: Transportation Planning and Technology
Pages: 722-740
Issue: 6
Volume: 40
Year: 2017
Month: 8
X-DOI: 10.1080/03081060.2017.1325147
File-URL: http://hdl.handle.net/10.1080/03081060.2017.1325147
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Handle: RePEc:taf:transp:v:40:y:2017:i:6:p:722-740
Template-Type: ReDIF-Article 1.0
Author-Name: Joana Cavadas
Author-X-Name-First: Joana
Author-X-Name-Last: Cavadas
Author-Name: António Pais Antunes
Author-X-Name-First: António Pais
Author-X-Name-Last: Antunes
Title: Optimization-based study of the location of park-and-ride facilities
Abstract:
Park-and-ride facilities are parking lots located on the periphery of cities to intercept car trips coming from the suburbs and diverting them to a transit system, thus playing a potentially important role in reducing traffic congestion and air pollution in urban areas. In this paper, we present a study carried out to shed light on where to install park-and-ride facilities in the city of Coimbra, central Portugal. Its main component is an optimization model which aims to determine the best possible locations for a given number of park-and-ride facilities under the objective of minimizing car use in the urban areas. The main result of the study is that the introduction of only three park-and-ride facilities could reduce car use in Coimbra's urban areas by 19%, an impact that would be very difficult to achieve through measures such as decreasing bus fares, increasing parking fees and/or increasing bus services.
Journal: Transportation Planning and Technology
Pages: 201-226
Issue: 3
Volume: 42
Year: 2019
Month: 4
X-DOI: 10.1080/03081060.2019.1576380
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1576380
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Handle: RePEc:taf:transp:v:42:y:2019:i:3:p:201-226
Template-Type: ReDIF-Article 1.0
Author-Name: Shaila Jamal
Author-X-Name-First: Shaila
Author-X-Name-Last: Jamal
Author-Name: Muhammad Ahsanul Habib
Author-X-Name-First: Muhammad Ahsanul
Author-X-Name-Last: Habib
Title: Investigation of the use of smartphone applications for trip planning and travel outcomes
Abstract:
This paper explores the use of smartphone applications for trip planning and travel outcomes using data derived from a survey conducted in Halifax, Nova Scotia, in 2015. The study provides empirical evidence of relationships of smartphone use for trip planning (e.g. departure time, destination, mode choice, coordinating trips and performing tasks online) and resulting travel outcomes (e.g. vehicle kilometers traveled, social gathering, new place visits, and group trips) and associated factors. Several sets of factors such as socio-economic characteristics and travel characteristics are tested and interpreted. Results suggest that smartphone applications mostly influence younger individuals’ trip planning decisions. Transit pass owners are the frequent users of smartphone applications for trip planning. Findings suggest that transit pass owners commonly use smartphone applications for deciding departure times and mode choices. The study also identifies the limited impact of smartphone application use on reducing travel outcomes, such as vehicle kilometers traveled. The highest impact is in visiting new places (a 48.8% increase). The study essentially offers an original in-depth understanding of how smartphone applications are affecting everyday travel.
Journal: Transportation Planning and Technology
Pages: 227-243
Issue: 3
Volume: 42
Year: 2019
Month: 4
X-DOI: 10.1080/03081060.2019.1576381
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1576381
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Handle: RePEc:taf:transp:v:42:y:2019:i:3:p:227-243
Template-Type: ReDIF-Article 1.0
Author-Name: Michael Tanko
Author-X-Name-First: Michael
Author-X-Name-Last: Tanko
Author-Name: Matthew I. Burke
Author-X-Name-First: Matthew I.
Author-X-Name-Last: Burke
Author-Name: Barbara Yen
Author-X-Name-First: Barbara
Author-X-Name-Last: Yen
Title: Water transit and excess travel: discrete choice modelling of bus and ferry trips in Brisbane, Australia
Abstract:
Recent investment in urban ferry transport has created interest in what value such systems provide in a public transport network. In some cases, ferry services are in direct competition with other land-based transport, and despite often longer travel times passengers still choose water transport. This paper seeks to identify a premium attached to urban water transit through an identification of excess travel patterns. A one-month sample of smart card transaction data for Brisbane, Australia, was used to compare bus and ferry origin–destination pairs between a selected suburban location and the central business district. Logistic regression of the data found that ferry travel tended towards longer travel times (OR = 2.282), suggesting passengers do derive positive utility from ferry journeys. The research suggests the further need to incorporate non-traditional measures other than travel time for deciding the value of water transit systems.
Journal: Transportation Planning and Technology
Pages: 244-256
Issue: 3
Volume: 42
Year: 2019
Month: 4
X-DOI: 10.1080/03081060.2019.1576382
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1576382
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Handle: RePEc:taf:transp:v:42:y:2019:i:3:p:244-256
Template-Type: ReDIF-Article 1.0
Author-Name: Phillip Smith
Author-X-Name-First: Phillip
Author-X-Name-Last: Smith
Title: Exploring public transport sustainability with neutrosophic logic
Abstract:
Sustainable transportation is a significant component of overall sustainable development. Increasingly, evaluation and decision-making with respect to major complex projects (for example, transportation and land use projects), a multiple attribute perspective is taken. This paper illustrates a multiple attribute decision-making approach for selecting sustainable public transportation systems under uncertainty, that is, with partial or incomplete information represented by single-valued neutrosophic sets (SVNSs). A SVNS is a generalization of a classical set, a fuzzy set, and an intuitionistic fuzzy set. Here, SVNSs and SVNS connectives are illustrated in the context of a ‘Public Transit Sustainable Mobility Analysis Tool’ (PTSMAT) which involves a composite (multiple attribute) sustainability index. A case study of PTSMAT is provided for the UBC Corridor study in Vancouver, Canada. As expected, similar results are obtained to the original study, though the neutrosophic formalism opens a wide range of possibilities for recognition of uncertainty in sustainability assessment.
Journal: Transportation Planning and Technology
Pages: 257-273
Issue: 3
Volume: 42
Year: 2019
Month: 4
X-DOI: 10.1080/03081060.2019.1576383
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1576383
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Handle: RePEc:taf:transp:v:42:y:2019:i:3:p:257-273
Template-Type: ReDIF-Article 1.0
Author-Name: Tao Feng
Author-X-Name-First: Tao
Author-X-Name-Last: Feng
Author-Name: Harry J. P. Timmermans
Author-X-Name-First: Harry J. P.
Author-X-Name-Last: Timmermans
Title: Integrated imputation of activity-travel diaries incorporating the measurement of uncertainty
Abstract:
Procedures to transform GPS tracks into activity-travel diaries have been increasingly addressed due to their potential benefit to replace traditional methods used in travel surveys. Existing approaches for data annotation however are not sufficiently accurate, which normally involves a prompted recall survey for data validation. Imputation algorithms for transportation mode detection seem to be largely dependent on speed-related features, which may blur the quality of classification results, especially with transportation modes having similar speeds. Therefore, in this paper we propose an enhanced integrated imputation approach by incorporating the critical indicators related to trip patterns, reflecting the effects of uncertain travel environments, including bus stops and speed percentiles. A two-step procedure which embeds a segmentation model and a transportation mode inference model is designed and examined based on purified prompted recall data collected in a large-scale travel survey. Results show the superior performance of the proposed approach, where the overall accuracy at trip level reaches 93.2% and 88.1% for training and surveyed data, respectively.
Journal: Transportation Planning and Technology
Pages: 274-292
Issue: 3
Volume: 42
Year: 2019
Month: 4
X-DOI: 10.1080/03081060.2019.1576384
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1576384
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Handle: RePEc:taf:transp:v:42:y:2019:i:3:p:274-292
Template-Type: ReDIF-Article 1.0
Author-Name: Sheng Wei
Author-X-Name-First: Sheng
Author-X-Name-Last: Wei
Author-Name: Jiangang Xu
Author-X-Name-First: Jiangang
Author-X-Name-Last: Xu
Author-Name: Haitao Ma
Author-X-Name-First: Haitao
Author-X-Name-Last: Ma
Title: Exploring public bicycle network structure based on complex network theory and shortest path analysis: the public bicycle system in Yixing, China
Abstract:
A well-functioning public bicycle system relates not only to its mode of operation, vehicle allocation, rental station layout and vehicle leasing configuration, but also the bicycle network structure and its formation. However, the latter aspects have been widely overlooked in China. Here, we help to further attract more researchers to conduct relevant studies and make suggestions for the development of public bicycle transport in many small and medium-sized cities across the world. We demonstrate how to explore the public bicycle network structure of a county-level Chinese city – Yixing – known for its clay ware and tourism. We show that complex network theory and shortest path analysis technology are useful in characterizing the public bicycle network structure, in aspects such as network topology, the spatial distribution of sub-networks and traffic flows. Finally, the paper proposes relevant urban planning strategies.
Journal: Transportation Planning and Technology
Pages: 293-307
Issue: 3
Volume: 42
Year: 2019
Month: 4
X-DOI: 10.1080/03081060.2019.1576385
File-URL: http://hdl.handle.net/10.1080/03081060.2019.1576385
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Handle: RePEc:taf:transp:v:42:y:2019:i:3:p:293-307
Template-Type: ReDIF-Article 1.0
Author-Name: Jiafu Tang
Author-X-Name-First: Jiafu
Author-X-Name-Last: Tang
Author-Name: Kai-Leung Yung
Author-X-Name-First: Kai-Leung
Author-X-Name-Last: Yung
Author-Name: Andrew Ip
Author-X-Name-First: Andrew
Author-X-Name-Last: Ip
Author-Name: Shixin Liu
Author-X-Name-First: Shixin
Author-X-Name-Last: Liu
Title: Synchronized Production and Transportation Planning Using Subcontracted Vehicles in a Production-Distribution Network
Abstract: Effective management of interfaces between procurement, supply, production and distribution for higher efficiency in the supply chain is an important issue in global manufacturing, where the synchronization of production and transportation planning represents important savings in operational costs. This paper focuses on the synchronization of production planning and transportation planning in a production distribution network, where transportation is subcontracted to a professional transportation enterprise (PTE) for vehicle-hiring. Dynamic and flexible numbers of vehicles are used to cater for fast changing market demands. Thus, the number of vehicles to be hired is viewed from the planning point of view as an operational decision considered simultaneously with production and transportation planning. A mathematical model – SPTP/MTDS – for synchronized production and transportation planning under multiple times and direct shipping strategy (MTDS) is discussed, and a Lagrange relaxation decomposition-based two layer decision procedure (LRD-TLDP) is developed. By introducing artificial decision variables and Lagrange multipliers, SPTP/MTDS is decomposed into a production decision sub-problem (SPTP-PD), and a distribution decision sub-problem (SPTP-DD). A priority-based assignment heuristic and a partial chain-based genetic algorithm are developed to solve SPTP-PD and SPTP-DD, respectively. An illustration of the application of the model in an electronic appliance manufacturing enterprise in China is presented.
Journal: Transportation Planning and Technology
Pages: 113-146
Issue: 2-3
Volume: 30
Year: 2007
X-DOI: 10.1080/03081060701390528
File-URL: http://hdl.handle.net/10.1080/03081060701390528
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Handle: RePEc:taf:transp:v:30:y:2007:i:2-3:p:113-146
Template-Type: ReDIF-Article 1.0
Author-Name: Shwu-Ping Guo
Author-X-Name-First: Shwu-Ping
Author-X-Name-Last: Guo
Title: Internalization of Transportation External Costs: Impact Analysis of Logistics Company Mode and Route Choices
Abstract: This study focuses on the mode and route choices of a logistics company in a situation involving intercity transportation with networks of surface roads, highways and a railway. A method of transportation network analysis is applied to construct a logistics company mode and route choice models with the objective of minimizing total distribution and external costs. This study also assumes that the fleet number and vehicle capacities are given. Freight distributed from a distribution center to given retailers or consumers via surface road/highway links or via intermodal transportation involving surface road/highway links and a railway. In terms of model construction, this study first explores the routing and sequence of the retailers and consumers served by each vehicle. Second, the study internalizes the external cost of air pollution into the total distribution cost, to analyze the influences of external cost burdens on a logistics company mode and route choices from a user charge perspective. Finally, the study designs a heuristic algorithm for solving the above models, and illuminates the modeling process using a numerical example.
Journal: Transportation Planning and Technology
Pages: 147-165
Issue: 2-3
Volume: 30
Year: 2007
X-DOI: 10.1080/03081060701390569
File-URL: http://hdl.handle.net/10.1080/03081060701390569
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Handle: RePEc:taf:transp:v:30:y:2007:i:2-3:p:147-165
Template-Type: ReDIF-Article 1.0
Author-Name: Ping Ji
Author-X-Name-First: Ping
Author-X-Name-Last: Ji
Author-Name: Kejia Chen
Author-X-Name-First: Kejia
Author-X-Name-Last: Chen
Title: The Vehicle Routing Problem: The Case of the Hong Kong Postal Service
Abstract: With the growth in population and development of business activities in Hong Kong, the range and level of services provided by Hongkong Post have multiplied. However, the schedule of its postal vehicles, including mail collection and delivery, is still constructed manually on a daily basis, based on the experience of staff and transportation reviews. In this paper, the problem of scheduling a set of n collection points (District Post Offices) from a depot (General Post Office) in Hong Kong Island is addressed. The objectives pursued are the maximization of resource utilization and minimization of operation costs. In other words, the variable cost is expected to be reduced. To achieve these goals, an integer linear programming (IP) model of the vehicle routing problem (VRP) is developed in an effort to obtain optimal solutions. As the model involves computational complexity, a commercial software package CPLEX is used to solve the problems efficiently. The results show that the proposed model can produce optimal vehicle routes and schedules.
Journal: Transportation Planning and Technology
Pages: 167-182
Issue: 2-3
Volume: 30
Year: 2007
X-DOI: 10.1080/03081060701390841
File-URL: http://hdl.handle.net/10.1080/03081060701390841
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Handle: RePEc:taf:transp:v:30:y:2007:i:2-3:p:167-182
Template-Type: ReDIF-Article 1.0
Author-Name: N. Holdsworth
Author-X-Name-First: N.
Author-X-Name-Last: Holdsworth
Author-Name: M. P. Enoch
Author-X-Name-First: M. P.
Author-X-Name-Last: Enoch
Author-Name: S. G. Ison
Author-X-Name-First: S. G.
Author-X-Name-Last: Ison
Title: Examining the Political and Practical Reality of Bus-based Real Time Passenger Information
Abstract: Enhancing the bus experience through improved information provision is a key element of UK Government transport policy. Real time passenger information (RTPI) is perceived to reassure waiting passengers, to benefit the bus operator through increased revenue and the local authority, by promoting social inclusion and achieving a modal shift. RTPI also provides an important tool for operators by allowing them to monitor services and refine their schedules. The aim of this paper is to understand the reasons for implementing RTPI in the bus sector, and to determine the key issues impacting on the likely success of such a policy. A case study approach investigates the experiences of two provincial towns in the UK. The paper suggests that, whilst it is unclear whether RTPI has resulted in an increase in bus patronage, it is considered to be most effective when combined as part of a package of measures. It is intended that the findings from the two case studies will reveal lessons of relevance to authorities contemplating the introduction of RTPI.
Journal: Transportation Planning and Technology
Pages: 183-204
Issue: 2-3
Volume: 30
Year: 2007
X-DOI: 10.1080/03081060701390874
File-URL: http://hdl.handle.net/10.1080/03081060701390874
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Handle: RePEc:taf:transp:v:30:y:2007:i:2-3:p:183-204
Template-Type: ReDIF-Article 1.0
Author-Name: Anders Wretstrand
Author-X-Name-First: Anders
Author-X-Name-Last: Wretstrand
Title: Comfort and Safety as Perceived by Wheelchair-Seated Bus Passengers
Abstract: Wheelchair-seated passengers on European and Swedish urban transit buses can travel rearwards, resting against a bulkhead, without the use of tie-down equipment. However, users sometimes disapprove of being the only passengers who have to travel rearwards, and also unrestrained. In order to investigate comfort and safety as perceived by wheelchair-seated bus passengers riding either forwards or rearwards, an experimental field study was carried out. Participating subjects were 31 wheelchair users and a group of 44 ambulant passengers. Each subject made two consecutive, identical 15-minute trips, randomly beginning either forwards or backwards, and interviews were conducted after each trip. During the trips, three-axis bus motion was recorded. The concept of categorization was used as a theoretical background and basis for discussion of the comfort and safety constructs. The results indicated that while the majority preferred the forward-facing position regarding comfort issues, a minority felt that the level of perceived safety was better. Wheelchair-seated passengers were more positive towards the rearward position than the ambulant group.
Journal: Transportation Planning and Technology
Pages: 205-224
Issue: 2-3
Volume: 30
Year: 2007
X-DOI: 10.1080/03081060701390890
File-URL: http://hdl.handle.net/10.1080/03081060701390890
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Handle: RePEc:taf:transp:v:30:y:2007:i:2-3:p:205-224
Template-Type: ReDIF-Article 1.0
Author-Name: Chang Yi
Author-X-Name-First: Chang
Author-X-Name-Last: Yi
Author-Name: Benjamin Rasmussen
Author-X-Name-First: Benjamin
Author-X-Name-Last: Rasmussen
Author-Name: Daniel Rodriguez
Author-X-Name-First: Daniel
Author-X-Name-Last: Rodriguez
Title: Understanding the Relationship Between Physical and Virtual Representations of Transit Agencies
Abstract: This study examines whether physical attributes of transit agencies, such as agency size, make a difference in how transit websites are designed, and how transit information is distributed. The objective of this study is to see if there is a relationship between physical and virtual representations of transit agencies. A rating instrument is developed for evaluating the quality of transit websites. Our findings suggest that transit agency size plays a key role in determining website quality: When the size of transit system is large, the information about the agency is too complex to be effectively presented on web pages. Thus, the quality of the large agencies’ websites is lower than medium-sized agencies. Instead, we find that large agencies attempt to design more user-friendly sites, and provide advanced information searching tools to compensate for low information quality. Policy implications for transit agencies are discussed.
Journal: Transportation Planning and Technology
Pages: 225-247
Issue: 2-3
Volume: 30
Year: 2007
X-DOI: 10.1080/03081060701395485
File-URL: http://hdl.handle.net/10.1080/03081060701395485
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Handle: RePEc:taf:transp:v:30:y:2007:i:2-3:p:225-247
Template-Type: ReDIF-Article 1.0
Author-Name: Luis Ferreira
Author-X-Name-First: Luis
Author-X-Name-Last: Ferreira
Author-Name: Phil Charles
Author-X-Name-First: Phil
Author-X-Name-Last: Charles
Author-Name: Clara Tether
Author-X-Name-First: Clara
Author-X-Name-Last: Tether
Title: Evaluating Flexible Transport Solutions
Abstract: Flexible transport services (FTS) have been of increasing interest in developing countries as a bridge between the use of personal car travel and fixed route transit services. This paper reports on findings from a recent study in Queensland Australia, which identified lessons from an international review and implications for Australia. Potential strategic directions, including a vision, mission, key result areas, strategies, and identified means of measuring performance are described. Evaluation criteria for assessing flexible transport proposals were developed, and approaches to identifying and assessing needs and demands outlined. The use of emerging technologies is also a key element of successful flexible transport services.
Journal: Transportation Planning and Technology
Pages: 249-269
Issue: 2-3
Volume: 30
Year: 2007
X-DOI: 10.1080/03081060701395501
File-URL: http://hdl.handle.net/10.1080/03081060701395501
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Handle: RePEc:taf:transp:v:30:y:2007:i:2-3:p:249-269
Template-Type: ReDIF-Article 1.0
Author-Name: Satu Innamaa
Author-X-Name-First: Satu
Author-X-Name-Last: Innamaa
Title: Online Prediction of Travel Time: Experience From a Pilot Trial
Abstract: This study was designed to present an online model which predicted travel times on an interurban two-lane two-way highway section on the basis of field measurements. The study included two parts: an evaluation of the performance of the model, and an examination of the possibility to improve the model in case of unsatisfactory performance. The model was based on MLP neural networks. The main results of the evaluation showed that the prediction model outperformed a non-predictive system. However, the model for one section had not performed as well during the trial period as was expected. This might be due to a slight change in the congestion phenomenon. After further development, the findings showed that the model could be improved considerably with new data. The main implication was that even a simple prediction model improves the quality of travel time information substantially, compared to estimates based directly on the latest measurements.
Journal: Transportation Planning and Technology
Pages: 271-287
Issue: 2-3
Volume: 30
Year: 2007
X-DOI: 10.1080/03081060701395535
File-URL: http://hdl.handle.net/10.1080/03081060701395535
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Handle: RePEc:taf:transp:v:30:y:2007:i:2-3:p:271-287
Template-Type: ReDIF-Article 1.0
Author-Name: Cathy MacHaris
Author-X-Name-First: Cathy
Author-X-Name-Last: MacHaris
Author-Name: Joeri Van Mierlo
Author-X-Name-First: Joeri
Author-X-Name-Last: Van Mierlo
Author-Name: Peter Van Den Bossche
Author-X-Name-First: Peter
Author-X-Name-Last: Van Den Bossche
Title: Combining Intermodal Transport With Electric Vehicles: Towards More Sustainable Solutions
Abstract: This paper analyses the feasibility of incorporating electric or hybrid vehicles in intermodal transport for the transportation of containers in the pre- and post haulage (PPH) operation. In Europe, the intermodal transport market is being strongly supported, as it is seen as one of the keystones of a sustainable mobility system policy. The introduction of environmentally friendly electric/hybrid vehicles for the pre- and post haulage operation would mean a further enhancement leading to a more complete ecological intermodal transport chain. PPH operations are usually no longer than 30 km, and, hence, could possibly be handled by electric or hybrid vehicles. Hybrid electric vehicles (HEV) combine electric and other drive systems, such as internal combustion engines, gas turbines and fuel cells. Hybrid electric vehicles merge the zero pollution and high efficiency benefits of electric traction with the high fuel energy density benefits of an energy source or thermal engine. The use of electrically driven vehicles for goods distribution has already been successfully proven in international demonstration projects, such as ELCIDIS. Transport of intermodal units (such as ISO containers), however, requires electric/hybrid heavy-duty goods vehicles, which are not readily available on the market, but for which the technology exists. Different possibilities are assessed as to their technical, financial, organizational and environmental feasibility and suitability. This analysis is based on a typical mission for pre-and post haulage operations, such as type of trips, distance, frequency, urban/suburban, etc.
Journal: Transportation Planning and Technology
Pages: 311-323
Issue: 2-3
Volume: 30
Year: 2007
X-DOI: 10.1080/03081060701395618
File-URL: http://hdl.handle.net/10.1080/03081060701395618
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Handle: RePEc:taf:transp:v:30:y:2007:i:2-3:p:311-323
Template-Type: ReDIF-Article 1.0
Author-Name: Yaser Hawas
Author-X-Name-First: Yaser
Author-X-Name-Last: Hawas
Title: A Microscopic Simulation Model for Incident Modeling in Urban Networks
Abstract: This paper reviews the main modules of an integrated system for incident management in real-time, -sim. A core to such a system is a microscopic simulator with extended abilities to model the temporal and spatial evolution of specified non-recurrent traffic conditions. The paper reviews the mathematical formulation of the car-following and lane-changing modules. The model is validated using a simulation-based approach. Concluding comments on the general validation process of the model are provided. The paper finally presents a sample of the accident patterns replicated by the model together with their implications for real world validation.
Journal: Transportation Planning and Technology
Pages: 289-309
Issue: 2-3
Volume: 30
Year: 2007
X-DOI: 10.1080/03081060701398117
File-URL: http://hdl.handle.net/10.1080/03081060701398117
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Handle: RePEc:taf:transp:v:30:y:2007:i:2-3:p:289-309
Template-Type: ReDIF-Article 1.0
Author-Name: Zachary Vander Laan
Author-X-Name-First: Zachary
Author-X-Name-Last: Vander Laan
Author-Name: Paul Schonfeld
Author-X-Name-First: Paul
Author-X-Name-Last: Schonfeld
Title: Modeling heterogeneous traffic with cooperative adaptive cruise control vehicles: A first-order macroscopic perspective
Abstract:
This paper proposes a modeling framework to characterize steady-state traffic flow relations for heterogeneous traffic composed of both standard (S) and Cooperative Adaptive Cruise Control (CACC, labeled C here) vehicles, capturing the impact of C market penetration and vehicle sequence within a lane. The resulting parameterized fundamental diagram is then integrated with a first-order macroscopic traffic model, allowing us to characterize the operational performance on a network for heterogeneous traffic with varying C market penetration rates. This approach is demonstrated through an illustrative case study which considers a small freeway section with time-varying demand, merging traffic from an entrance ramp, and C market penetration ranging from 0.0–1.0. The results indicate that maximum throughput does not change appreciably as C traffic is first introduced, but eventually increases significantly for mid-to-high C penetration rates. Additionally, it shows that increasing C market penetration and separating vehicle classes slows upstream congestion propagation.
Journal: Transportation Planning and Technology
Pages: 113-140
Issue: 2
Volume: 43
Year: 2020
Month: 2
X-DOI: 10.1080/03081060.2020.1717127
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1717127
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Handle: RePEc:taf:transp:v:43:y:2020:i:2:p:113-140
Template-Type: ReDIF-Article 1.0
Author-Name: Yongsheng Zhang
Author-X-Name-First: Yongsheng
Author-X-Name-Last: Zhang
Author-Name: Enjian Yao
Author-X-Name-First: Enjian
Author-X-Name-Last: Yao
Author-Name: Kangning Zheng
Author-X-Name-First: Kangning
Author-X-Name-Last: Zheng
Author-Name: Hao Xu
Author-X-Name-First: Hao
Author-X-Name-Last: Xu
Title: Metro passenger’s path choice model estimation with travel time correlations derived from smart card data
Abstract:
Smart card data provides a new perspective for estimating a metro passenger’s path choice model in a large-scale urban rail transit network with multiple alternative paths between origin-destination pairs. However, existing research does not consider correlations of path travel times among alternative paths when using smart card data for estimation purposes, leading to biased estimations. This paper proposes an approach to estimating the path choice model considering path travel time correlations. In particular, a simplified form of measuring path travel time correlations caused by shared links is proposed to improve estimation efficiency. Then a framework for a linking path choice model and smart card data is developed based on a Gaussian mixture model; an expectation maximization-based estimation algorithm is also provided. Finally, taking the Guangzhou Metro in China as an example, the superiority of estimations based on smart card data considering correlations is observed in both statistical terms and predictions.
Journal: Transportation Planning and Technology
Pages: 141-157
Issue: 2
Volume: 43
Year: 2020
Month: 2
X-DOI: 10.1080/03081060.2020.1717135
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1717135
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Handle: RePEc:taf:transp:v:43:y:2020:i:2:p:141-157
Template-Type: ReDIF-Article 1.0
Author-Name: Ida Kristoffersson
Author-X-Name-First: Ida
Author-X-Name-Last: Kristoffersson
Author-Name: Svante Berglund
Author-X-Name-First: Svante
Author-X-Name-Last: Berglund
Author-Name: Staffan Algers
Author-X-Name-First: Staffan
Author-X-Name-Last: Algers
Title: Estimation of a large-scale tour generation model taking travellers’ daily tour patterns into account
Abstract:
Tour generation is conventionally modelled separately according to tour purpose. Tours with different purposes are, however, in reality not generated independently of each other. For example, few travellers conduct more than three tours per day. In this paper, the conventional tour generation model is extended into estimation of a model that takes travellers’ daily tour patterns into account. Results show that access to a car and a drivers’ licence, having a job and presence of children in the household increase the probability of making many tours in one day. Furthermore, results show that accessibility is an important factor for the generation of non-mandatory tours, that weekends and holiday seasons are important determinants of when tour purposes are generated, that high income increases the probability of conducting business tours as well as tour patterns that include expensive activities, and that high income reduces the probability of conducting inexpensive activities such as visiting friends and family.
Journal: Transportation Planning and Technology
Pages: 158-173
Issue: 2
Volume: 43
Year: 2020
Month: 2
X-DOI: 10.1080/03081060.2020.1717137
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1717137
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Handle: RePEc:taf:transp:v:43:y:2020:i:2:p:158-173
Template-Type: ReDIF-Article 1.0
Author-Name: Theodora Konstantinou
Author-X-Name-First: Theodora
Author-X-Name-Last: Konstantinou
Author-Name: Konstantinos Kepaptsoglou
Author-X-Name-First: Konstantinos
Author-X-Name-Last: Kepaptsoglou
Author-Name: Panteleimon Kopelias
Author-X-Name-First: Panteleimon
Author-X-Name-Last: Kopelias
Title: Mobile vehicle emission inspection service optimization: a flow intercepting location model and application
Abstract:
Emission screening and control for motorized traffic is mandatory in most countries worldwide. However, there may be cases that periodic inspections in permanent establishments may be inefficient and fail to enforce emission regulations among moving vehicles. In such cases, authorities deploy mobile inspection units, which perform random vehicle emission screening. This is particularly necessary for incoming and through traffic of origins not within the jurisdiction of local authorities. This paper investigates the problem of efficiently designing such a mobile inspection service, under resource availability and space constraints. The problem is addressed as a flow interception location model, formulated as a non-linear – integer mathematical programming model and solved using a genetic algorithm. The model is demonstrated for the case of the city of Alexandroupoli and results are discussed.
Journal: Transportation Planning and Technology
Pages: 174-187
Issue: 2
Volume: 43
Year: 2020
Month: 2
X-DOI: 10.1080/03081060.2020.1717138
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1717138
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Handle: RePEc:taf:transp:v:43:y:2020:i:2:p:174-187
Template-Type: ReDIF-Article 1.0
Author-Name: Kwang-Sub Lee
Author-X-Name-First: Kwang-Sub
Author-X-Name-Last: Lee
Author-Name: Jin Ki Eom
Author-X-Name-First: Jin
Author-X-Name-Last: Ki Eom
Title: Development and spatial transferability of hourly activity space attraction models by activity type at a census block level
Abstract:
Activity spaces are places in which people participate in an activity during a certain time period, serving as the starting or ending point of a trip. Previous studies on trip generation or attraction models have been limited to aggregated spatial and temporal scales. Extending recent research on the application of mobile phone data to transportation models and particularly addressing the above-mentioned limitations, this study investigates temporal and spatial characteristics of hourly activity space attractiveness by activity type at finer spatial (e.g. census block) and temporal (e.g. hourly) resolutions. We construct hourly activity space attraction models in the daytime for four activity types, including work, private education, shopping, and recreation in Gangnam, Korea. The models are log-transformed or square-root-transformed multiple regression models. We also test the spatial transferability of the Gangnam model to the area of Seocho, Korea.
Journal: Transportation Planning and Technology
Pages: 188-207
Issue: 2
Volume: 43
Year: 2020
Month: 2
X-DOI: 10.1080/03081060.2020.1717141
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1717141
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Handle: RePEc:taf:transp:v:43:y:2020:i:2:p:188-207
Template-Type: ReDIF-Article 1.0
Author-Name: Tatjana Krstić Simić
Author-X-Name-First: Tatjana
Author-X-Name-Last: Krstić Simić
Author-Name: Obrad Babić
Author-X-Name-First: Obrad
Author-X-Name-Last: Babić
Title: Influence of airport airside area layouts and air traffic management tactics on flight cost efficiency
Abstract:
This paper deals with an investigation of the influence of different airport airside area layouts/configurations and Air Traffic Management (ATM) tactics on flight efficiency in terms of time and costs. For given airport layouts/configurations, air traffic demand, and different ATM tactics, some experiments are performed using SIMMOD simulation. Aircraft throughputs and delays, fuel consumption and noise and greenhouse gas (GHG) emissions are estimated and evaluated. Based on these, flights time and cost inefficiencies are calculated taking into account the cost of fuel consumed, noise generated and GHG emissions, and crew and passenger delays. An analysis of derived inefficiency indicators shows that different airport airside area layouts and ATM tactics could result in different airport functioning efficiencies, which further imply significantly different time and cost efficiency of the flights concerned.
Journal: Transportation Planning and Technology
Pages: 208-222
Issue: 2
Volume: 43
Year: 2020
Month: 2
X-DOI: 10.1080/03081060.2020.1717142
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1717142
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Handle: RePEc:taf:transp:v:43:y:2020:i:2:p:208-222
Template-Type: ReDIF-Article 1.0
Author-Name: Tianyu Xu
Author-X-Name-First: Tianyu
Author-X-Name-Last: Xu
Author-Name: Xiaojing Liu
Author-X-Name-First: Xiaojing
Author-X-Name-Last: Liu
Author-Name: Zeling Zhang
Author-X-Name-First: Zeling
Author-X-Name-Last: Zhang
Title: Simplified likelihood estimation of ship total loss using GRA and CRITIC methods
Abstract:
Based on statistical data of ship total losses globally from 2013 to 2017, correlations between contributory factors (ocean regions, accident causes, and ship types) and ship total losses are analysed via grey relational analysis (GRA) and criteria importance through inter-criteria correction (CRITIC) methods. Each contributory factor is graded into three levels, and different scenarios are generated through the combination of these factors. According to our analytic results, the GRA method appears more sensitive than the CRITIC method for selecting relevant safety factors. Simplified ways for likelihood estimation of ship total loss are proposed.
Journal: Transportation Planning and Technology
Pages: 223-236
Issue: 2
Volume: 43
Year: 2020
Month: 2
X-DOI: 10.1080/03081060.2020.1717147
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Handle: RePEc:taf:transp:v:43:y:2020:i:2:p:223-236
Template-Type: ReDIF-Article 1.0
Author-Name: Raj Bridgelall
Author-X-Name-First: Raj
Author-X-Name-Last: Bridgelall
Author-Name: Denver D. Tolliver
Author-X-Name-First: Denver D.
Author-X-Name-Last: Tolliver
Title: A cognitive framework to plan for the future of transportation
Abstract:
Automated, connected, electrified, and shared mobility will be cornerstones of the transportation future. Research to quantify the potential benefits and drawbacks of practice, and to identify barriers to adoption, is the first step in any strategic plan for their adoption. However, uncertainties, complexity, interdependence, and the multidisciplinary nature of emerging transportation technologies make it difficult to organize and identify focused research. The contribution of this work is a cognitive framework to help planners and policymakers organize broad topics, reveal challenges, discover ideas for solutions, quantify potential impacts, and identify implications to guide preparation strategies. The authors provide example cognitive frameworks for connected, automated, and electrified vehicles.
Journal: Transportation Planning and Technology
Pages: 237-252
Issue: 3
Volume: 43
Year: 2020
Month: 4
X-DOI: 10.1080/03081060.2020.1735728
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1735728
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Handle: RePEc:taf:transp:v:43:y:2020:i:3:p:237-252
Template-Type: ReDIF-Article 1.0
Author-Name: Nikhil Menon
Author-X-Name-First: Nikhil
Author-X-Name-Last: Menon
Author-Name: Yu Zhang
Author-X-Name-First: Yu
Author-X-Name-Last: Zhang
Author-Name: Abdul Rawoof Pinjari
Author-X-Name-First: Abdul
Author-X-Name-Last: Rawoof Pinjari
Author-Name: Fred Mannering
Author-X-Name-First: Fred
Author-X-Name-Last: Mannering
Title: A statistical analysis of consumer perceptions towards automated vehicles and their intended adoption
Abstract:
While automated vehicle (AV) development continues to progress rapidly, how the public will accept and adopt automated vehicles remains an open question. Using extensive survey data, we apply cluster analysis to better understand consumer perceptions toward potential benefits and concerns related to AVs with regard to factors influencing their AV adoption likelihood. Four market segments are identified – ‘benefits-dominated,’ ‘concerns-dominated,’ ‘uncertain,’ and ‘well-informed.’ A random parameters multinomial logit model is then estimated to identify factors influencing the probability of respondents belonging to one of these four market segments. Among other influences (such as socio-economic and current travel characteristics), it is found that ‘Millennials’ have a higher probability of belonging to the well-informed market segment, ‘Gen-Xers’ with a lower probability to the uncertain market segment, and ‘Baby Boomers’ with a higher probability to the concerns-dominated market (relative to the ‘Great Generation’). We also study the individuals’ expressed likelihood of AV adoption using separate random parameters ordered probit estimations for each of the four market segments. The substantial and statistically significant differences across each AV consumer market segment underscore the potentially large impact that different consumer demographics may have on AV adoption and the need for targeted marketing to achieve better market-penetration outcomes.
Journal: Transportation Planning and Technology
Pages: 253-278
Issue: 3
Volume: 43
Year: 2020
Month: 4
X-DOI: 10.1080/03081060.2020.1735740
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1735740
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Handle: RePEc:taf:transp:v:43:y:2020:i:3:p:253-278
Template-Type: ReDIF-Article 1.0
Author-Name: Pengfei Liu
Author-X-Name-First: Pengfei
Author-X-Name-Last: Liu
Author-Name: Wei (David) Fan
Author-X-Name-First: Wei (David)
Author-X-Name-Last: Fan
Title: Exploring the impact of connected and autonomous vehicles on freeway capacity using a revised Intelligent Driver Model
Abstract:
Connected and autonomous vehicle (CAV) technologies are expected to change driving/vehicle behavior on freeways. This study investigates the impact of CAVs on freeway capacity using a microsimulation tool. A four-lane basic freeway segment is selected as the case study through the Caltrans Performance Measurement System (PeMS). To obtain valid results, various driving behavior parameters are calibrated to the real traffic conditions for human-driven vehicles. In particular, the calibration is conducted using genetic algorithm. A revised Intelligent Driver Model (IDM) is developed and used as the car-following model for CAVs. The simulation is conducted on the basic freeway segment under different penetration rates of CAVs and different freeway speed limits. The results show that with an increase in the market penetration rate, freeway capacity increases, and will increase significantly as the speed limit increases.
Journal: Transportation Planning and Technology
Pages: 279-292
Issue: 3
Volume: 43
Year: 2020
Month: 4
X-DOI: 10.1080/03081060.2020.1735746
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1735746
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Handle: RePEc:taf:transp:v:43:y:2020:i:3:p:279-292
Template-Type: ReDIF-Article 1.0
Author-Name: Arezoo Samimi Abianeh
Author-X-Name-First: Arezoo
Author-X-Name-Last: Samimi Abianeh
Author-Name: Mark Burris
Author-X-Name-First: Mark
Author-X-Name-Last: Burris
Author-Name: Alireza Talebpour
Author-X-Name-First: Alireza
Author-X-Name-Last: Talebpour
Author-Name: Kumares Sinha
Author-X-Name-First: Kumares
Author-X-Name-Last: Sinha
Title: The impacts of connected vehicle technology on network-wide traffic operation and fuel consumption under various incident scenarios
Abstract:
Incidents are a major source of traffic congestion and can lead to long and unpredictable delays, deteriorating traffic operations and adverse environmental impacts. The emergence of connected vehicles and communication technologies has enabled travelers to use real-time traffic information. The ability to exchange traffic information among vehicles has tremendous potential impacts on network performance especially in the case of non-recurrent congestion. To this end, this paper utilizes a microscopic simulation model of traffic in El Paso, Texas to investigate the impacts of incidents on traffic operation and fuel consumption at different market penetration rates (MPR) of connected vehicles. Several scenarios are implemented and tested to determine the impacts of incidents on network performance in an urban area. The scenarios are defined by changing the duration of incidents and the number of lanes closed. This study also shows how communication technology affects network performance in response to congestion. The results of the study demonstrate the potential effectiveness of connected vehicle technology in improving network performance. For an incident with a duration of 900 s and MPR of 80%, total fuel consumption and total travel time decreased by approximately 20%; 26% was observed in network-wide travel time and fuel consumption at 100% MPR.
Journal: Transportation Planning and Technology
Pages: 293-312
Issue: 3
Volume: 43
Year: 2020
Month: 4
X-DOI: 10.1080/03081060.2020.1735752
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1735752
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Handle: RePEc:taf:transp:v:43:y:2020:i:3:p:293-312
Template-Type: ReDIF-Article 1.0
Author-Name: Thomas E. Guerrero
Author-X-Name-First: Thomas E.
Author-X-Name-Last: Guerrero
Author-Name: Juan de Dios Ortuzar
Author-X-Name-First: Juan
Author-X-Name-Last: de Dios Ortuzar
Author-Name: Sebastian Raveau
Author-X-Name-First: Sebastian
Author-X-Name-Last: Raveau
Title: Traffic accident risk perception among drivers: a latent variable approach
Abstract:
Governments require decision tools to deal with road traffic accidents, a pandemic resulting in millions of deaths around the world. Evidence shows that human factors are one of the major causes of road accidents, and there is much interest in identifying variables that may have an impact on drivers’ perception of risk. To this aim, we design a stated choice experiment with eight hypothetical driving scenarios considering attributes that have been strongly associated with increased accident risks: (i) driving speed, (ii) driving the wrong way in a one-way street, (iii) overtaking on a bend, and (iv) driving under the influence of alcohol or drugs. Data from a sample of survey respondents are used to estimate a hybrid discrete choice model incorporating two latent variables, Driver Concentration and Safe Driving. Our results may contribute to the design of public policies geared to prevent accidents by encouraging safer driving behaviour.
Journal: Transportation Planning and Technology
Pages: 313-324
Issue: 3
Volume: 43
Year: 2020
Month: 4
X-DOI: 10.1080/03081060.2020.1735763
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1735763
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Handle: RePEc:taf:transp:v:43:y:2020:i:3:p:313-324
Template-Type: ReDIF-Article 1.0
Author-Name: Jun Li
Author-X-Name-First: Jun
Author-X-Name-Last: Li
Author-Name: Peiqing Zheng
Author-X-Name-First: Peiqing
Author-X-Name-Last: Zheng
Author-Name: Wenna Zhang
Author-X-Name-First: Wenna
Author-X-Name-Last: Zhang
Title: Identifying the spatial distribution of public transportation trips by node and community characteristics
Abstract:
Identifying the spatial distribution of travel activities can help public transportation managers optimize the allocation of resources. In this paper, transit networks are constructed based on traffic flow data rather than network topologies. The PageRank algorithm and community detection method are combined to identify the spatial distribution of public transportation trips. The structural centrality and PageRank values are compared to identify hub stations; the community detection method is applied to reveal the community structures. A case study in Guangzhou, China is presented. It is found that the bus network has a community structure, significant weekday commuting and small-world characteristics. The metro network is tightly connected, highly loaded, and has no obvious community structure. Hub stations show distinct differences in terms of volume and weekend/weekday usage. The results imply that the proposed method can be used to identify the spatial distribution of urban public transportation and provide a new study perspective.
Journal: Transportation Planning and Technology
Pages: 325-340
Issue: 3
Volume: 43
Year: 2020
Month: 4
X-DOI: 10.1080/03081060.2020.1735776
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1735776
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Handle: RePEc:taf:transp:v:43:y:2020:i:3:p:325-340
Template-Type: ReDIF-Article 1.0
Author-Name: Anthony Whiteing
Author-X-Name-First: Anthony
Author-X-Name-Last: Whiteing
Author-Name: Stephen Ison
Author-X-Name-First: Stephen
Author-X-Name-Last: Ison
Title: Universities’ transport study group UK annual conference 2019
Journal: Transportation Planning and Technology
Pages: 341-342
Issue: 4
Volume: 43
Year: 2020
Month: 5
X-DOI: 10.1080/03081060.2020.1749343
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1749343
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Handle: RePEc:taf:transp:v:43:y:2020:i:4:p:341-342
Template-Type: ReDIF-Article 1.0
Author-Name: William Clayton
Author-X-Name-First: William
Author-X-Name-Last: Clayton
Author-Name: Daniela Paddeu
Author-X-Name-First: Daniela
Author-X-Name-Last: Paddeu
Author-Name: Graham Parkhurst
Author-X-Name-First: Graham
Author-X-Name-Last: Parkhurst
Author-Name: John Parkin
Author-X-Name-First: John
Author-X-Name-Last: Parkin
Title: Autonomous vehicles: who will use them, and will they share?
Abstract:
The advent of road transport automation is suggested to be one of four key technological transitions that could amount to a major transformation in mobility practices. Specifically, fully Automated Vehicles (AVs) might replace the current private car owner user model with fleets of on-demand synchronously-shared automated taxis. However, significant barriers to this vision becoming the norm remain. This paper examines two critical user-acceptance aspects of the transition: willingness to adopt AVs, and willingness to share an AV with others, particularly strangers. Our novel survey (n = 899) included a choice experiment featuring four future full automation transport services (private, synchronously/asynchronously shared, and public). Cluster analysis examined respondents' preferences and their demographic and psycho-social characteristics. We uncover significant uncertainty about willingness to adopt automation and sharing, and important differences between clusters within our sample. For example, under 50% of participants report willingness to use an AV over their normal mode, or would prefer an automated option to a current human-driven option. Our findings raise critical questions for policymakers and transport authorities. Not least, how can AV technologies help realise the environmental and social benefits of widespread vehicle sharing in a context of a travelling public that still prefers its privacy on-the-move?
Journal: Transportation Planning and Technology
Pages: 343-364
Issue: 4
Volume: 43
Year: 2020
Month: 5
X-DOI: 10.1080/03081060.2020.1747200
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1747200
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Handle: RePEc:taf:transp:v:43:y:2020:i:4:p:343-364
Template-Type: ReDIF-Article 1.0
Author-Name: Tam Vu
Author-X-Name-First: Tam
Author-X-Name-Last: Vu
Author-Name: John Preston
Author-X-Name-First: John
Author-X-Name-Last: Preston
Title: Assessing the social costs of urban transport infrastructure options in low and middle income countries
Abstract:
This paper develops cost models for urban transport infrastructure options in situations where motorcycles and various forms of taxis are important modes of transport. The total social costs (TSCs) of conventional bus, Bus Rapid Transit (BRT), Monorail, Metro (Elevated Rail), car, motorcycle, Taxi and Uber are calculated for an urban corridor covering operator, user and external costs. Based on the parameters for a 7 km corridor in Hanoi, Vietnam, the results show the lowest average social cost (ASC) transport modes for different ranges of demand. Motorcycle might be the best option at low demand levels while conventional bus has advantages with low-medium demand. At medium demand levels, bus-based technologies and Monorail are competitive options while Metro, with a higher person capacity, is the best alternative at the highest demand levels. Compared to other modes, the ASCs of car and Taxi/Uber are greater because of high capital cost (related to vehicles) per passenger and low occupancy. Transport planners and decision makers in low and middle income countries (LMICs) can draw on the findings of this study. However, various limitations are identified and additional research is suggested.
Journal: Transportation Planning and Technology
Pages: 365-384
Issue: 4
Volume: 43
Year: 2020
Month: 5
X-DOI: 10.1080/03081060.2020.1747202
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1747202
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Handle: RePEc:taf:transp:v:43:y:2020:i:4:p:365-384
Template-Type: ReDIF-Article 1.0
Author-Name: Augustus Ababio-Donkor
Author-X-Name-First: Augustus
Author-X-Name-Last: Ababio-Donkor
Author-Name: Wafaa Saleh
Author-X-Name-First: Wafaa
Author-X-Name-Last: Saleh
Author-Name: Achille Fonzone
Author-X-Name-First: Achille
Author-X-Name-Last: Fonzone
Title: Understanding transport mode choice for commuting: the role of affect
Abstract:
This study examines the relationship between positive and negative user valence and transport mode choice behaviour. We integrate latent attitudes ‘affect’ and ‘salience’ into transport mode choice models using the framework of integrated choice and latent variable modelling and simultaneous maximum likelihood estimation methods. The results are consistent with findings in similar travel behaviour and behavioural economics literature. The study extends the findings of previous research and has demonstrated that user sentiments about public transport mode and salient public transport experiences have a significant impact on travel mode choice behaviour. It was found that private motorised users are more sensitive to overcrowding and anti-social behaviours on PT than active and PT travellers. Key attitudinal indicators influencing individual transport choice behaviour are established to guide public policy. The key indicators of Affect and Salience must be analysed and addressed through public policy to enhance PT user experience and develop services and facilities to increase the utility of PT in-vehicle travel time.
Journal: Transportation Planning and Technology
Pages: 385-403
Issue: 4
Volume: 43
Year: 2020
Month: 5
X-DOI: 10.1080/03081060.2020.1747203
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1747203
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Handle: RePEc:taf:transp:v:43:y:2020:i:4:p:385-403
Template-Type: ReDIF-Article 1.0
Author-Name: Ilyas B. Alhassan
Author-X-Name-First: Ilyas B.
Author-X-Name-Last: Alhassan
Author-Name: B. Matthews
Author-X-Name-First: B.
Author-X-Name-Last: Matthews
Author-Name: Jeremy P. Toner
Author-X-Name-First: Jeremy P.
Author-X-Name-Last: Toner
Author-Name: Yusak O. Susilo
Author-X-Name-First: Yusak O.
Author-X-Name-Last: Susilo
Title: The Movingo integrated ticket: seamless connections across the mälardalen region of Sweden
Abstract:
The need for improved public transport (PT) ticketing in ever-growing deregulated PT markets has made well-designed integrated ticketing systems a priority area of intervention for PT service providers around the world. Yet, very little practical evidence of its impacts are reported in Sweden and in the world at large. The focus of this study was the impacts of the Movingo integrated ticketing scheme in terms of PT patronage, user satisfaction and the perceived quality of the ticketing set-up. Three travel surveys were conducted along the Stockholm-Uppsala route. Methods including logistic regression and correlated t-tests were used to analyse the samples. The findings suggest that the scheme made rail commuting more attractive resulting in an overall increase of about 24% in ticket sales with 3% – 15% car commuters reporting that they patronised PT services after the project. The scheme also resulted in increased rail commuter satisfaction. The overall perceived quality of the ticketing set-up did not however improve due to interoperability challenges. Service providers’ uncertainty about equitable distribution of revenue among the participating service providers, interoperability challenges and the lack of interest among most of the participating service providers to sell Movingo tickets are some issues to be addressed.
Journal: Transportation Planning and Technology
Pages: 404-423
Issue: 4
Volume: 43
Year: 2020
Month: 5
X-DOI: 10.1080/03081060.2020.1747204
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1747204
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Handle: RePEc:taf:transp:v:43:y:2020:i:4:p:404-423
Template-Type: ReDIF-Article 1.0
Author-Name: M.J. Mohamed
Author-X-Name-First: M.J.
Author-X-Name-Last: Mohamed
Author-Name: T. Rye
Author-X-Name-First: T.
Author-X-Name-Last: Rye
Author-Name: A. Fonzone
Author-X-Name-First: A.
Author-X-Name-Last: Fonzone
Title: The utilisation and user characteristics of Uber services in London
Abstract:
Ridesourcing services such as Uber are nowadays a common feature within available transport options of many cities around the world (E.g. London & San Francisco). There has been much publicity about the potential impacts of ridesourcing services and how (or if) they should be managed or regulated without an objective understanding of who uses these services and why, as well as its current and future implications for public transport (PT).Ridesourcing is part of a broader tech-driven, mobile app-based sharing phenomenon – the ‘sharing economy’ – which has disrupted traditional market models and industries, for example, the transport industry, where new players such as Uber have emerged and have quickly become part of the urban transport landscape. Uber has been at the forefront in disrupting the transport sector since its first launch in 2010 (San Francisco, USA). Since its launch, Uber has generated extensive media coverage and debate among policymakers, transport planners and transport authorities on how these services are affecting traditional transport modes such as buses and taxis. However, without objective empirical data – in terms of impacts on trip making characteristics, PT ridership and congestion – policymakers and transport regulators are yet to fully understand the real impacts ridesourcing services are having on the transport network.This paper is part of broader research that aims to provide insights and empirical-based evidence on how Uber services are used (UberX and Uberpool) in London. A comprehensive survey was undertaken using a detailed questionnaire, issued to UberX and Uberpool users in London to gather detailed data on who uses the Uber services, why they use it and what are the trip purposes, in order to understand Uber user demographics and what effects (if any) Uber services are having on PT usage and trip making characteristics in London. The final findings provide important insights on Uber user demographics, trip purposes, types of trips replaced, impact on car ownership and why travellers use Uber services.
Journal: Transportation Planning and Technology
Pages: 424-441
Issue: 4
Volume: 43
Year: 2020
Month: 5
X-DOI: 10.1080/03081060.2020.1747205
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1747205
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Handle: RePEc:taf:transp:v:43:y:2020:i:4:p:424-441
Template-Type: ReDIF-Article 1.0
Author-Name: Mohamad-Kenan Al-Rijleh
Author-X-Name-First: Mohamad-Kenan
Author-X-Name-Last: Al-Rijleh
Author-Name: Ahsan Alam
Author-X-Name-First: Ahsan
Author-X-Name-Last: Alam
Author-Name: Romano Foti
Author-X-Name-First: Romano
Author-X-Name-Last: Foti
Author-Name: Patrick L. Gurian
Author-X-Name-First: Patrick L.
Author-X-Name-Last: Gurian
Author-Name: Sabrina Spatari
Author-X-Name-First: Sabrina
Author-X-Name-Last: Spatari
Author-Name: Marianne Hatzopoulou
Author-X-Name-First: Marianne
Author-X-Name-Last: Hatzopoulou
Title: Strategies to achieve deep reductions in metropolitan transportation GHG emissions: the case of Philadelphia
Abstract:
This paper investigates strategies that could achieve an 80% reduction in transportation emissions from current levels by 2050 in the City of Philadelphia. The baseline daily lifecycle emissions generated by road transportation in the Greater Philadelphia Region in 2012 were quantified using trip information from the 2012 Household Travel Survey (HTS). Emissions were projected to the year 2050 accounting for population growth and trends in vehicle technology for both the Greater Philadelphia Region and the City of Philadelphia. The impacts of vehicle technology and shifts in travel modes on greenhouse gas (GHG) emissions in 2050 were quantified using a scenario approach. The analysis of 12 different scenarios suggests that 80% reduction in emissions is technically feasible through a combination of active transportation, cleaner fuels for public transit vehicles, and a significant market penetration of battery-electric vehicles. The additional electricity demand associated with greater use of electric vehicles could amount to 10.8 TWh/year. The use of plug-in hybrid electric vehicles (PHEV) shows promising results due to high reductions in GHG emissions at a potentially manageable cost.
Journal: Transportation Planning and Technology
Pages: 797-815
Issue: 8
Volume: 41
Year: 2018
Month: 11
X-DOI: 10.1080/03081060.2018.1526879
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1526879
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Handle: RePEc:taf:transp:v:41:y:2018:i:8:p:797-815
Template-Type: ReDIF-Article 1.0
Author-Name: Zheng Zhu
Author-X-Name-First: Zheng
Author-X-Name-Last: Zhu
Author-Name: Minha Lee
Author-X-Name-First: Minha
Author-X-Name-Last: Lee
Author-Name: Yixuan Pan
Author-X-Name-First: Yixuan
Author-X-Name-Last: Pan
Author-Name: Hang Yang
Author-X-Name-First: Hang
Author-X-Name-Last: Yang
Author-Name: Lei Zhang
Author-X-Name-First: Lei
Author-X-Name-Last: Zhang
Title: Analyzing the impact of a planned transit-oriented development on mode share and traffic conditions
Abstract:
Transit-oriented development (TOD) is a popular planning strategy used to maximize accessibility to transit for various trip purposes. The quantitative effects of TOD on travel mode shift and traffic congestion have not been extensively tested in the current literature. This paper utilizes a seemingly unrelated regressions (SUR) mode share model and a mesoscopic dynamic traffic assignment (DTA) model to analyze the impact of a planned TOD in Maryland. The proposed model aims at improving the understanding of the quantitative impacts of such a TOD on mode share and traffic congestion. The main result of the mode share model indicates that the increase in transit ridership for a transit accessible shopping center is not that significant. Local traffic conditions will deteriorate due to a lack of investment in road infrastructure planned for the TOD area. The proposed method could be a valuable tool for other indicative land development or transportation policy analyses.
Journal: Transportation Planning and Technology
Pages: 816-829
Issue: 8
Volume: 41
Year: 2018
Month: 11
X-DOI: 10.1080/03081060.2018.1526882
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1526882
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Handle: RePEc:taf:transp:v:41:y:2018:i:8:p:816-829
Template-Type: ReDIF-Article 1.0
Author-Name: Shailesh Chandra
Author-X-Name-First: Shailesh
Author-X-Name-Last: Chandra
Author-Name: R. Thirumaleswara Naik
Author-X-Name-First: R. Thirumaleswara
Author-X-Name-Last: Naik
Author-Name: Luana Galbeno
Author-X-Name-First: Luana
Author-X-Name-Last: Galbeno
Title: Impact assessment of the Internet of Things on feeder transit performance
Abstract:
Efficient planning for demand responsive transit (DRT) can contribute to fulfilling the first/last mile transport needs for users of a major transit line. With the advancement in communication technologies, the internet is expected to assist this growing need of providing first/last mile connectivity. This is proposed to be achieved through a network created by Internet of Things (IoT). This paper evaluates the effect of implementation of IoT on service quality (or disutility) of DRT for two scenarios – with enabled-IoT (e-IoT) and with disabled-IoT (d-IoT). Data from five different DRT-like systems known as Call-n-Ride (CnR) routes operating in Denver, Colorado, are used for evaluation purposes. These CnR routes are Meridian, Interlocken, South Inverness, Broomfield and Louisville. Results show that, in general, all CnR routes would experience more than a 58 percent decrease in disutility if their operations were based on ‘with e-IoT’ operations. Interlocken would record the largest percentage decrease (74 percent) in disutility if its route service switched from the ‘with d-IoT’ to the ‘with e-IoT’ scenario.
Journal: Transportation Planning and Technology
Pages: 830-844
Issue: 8
Volume: 41
Year: 2018
Month: 11
X-DOI: 10.1080/03081060.2018.1526896
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1526896
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Handle: RePEc:taf:transp:v:41:y:2018:i:8:p:830-844
Template-Type: ReDIF-Article 1.0
Author-Name: Mohammad Ali Arman
Author-X-Name-First: Mohammad Ali
Author-X-Name-Last: Arman
Author-Name: Navid Khademi
Author-X-Name-First: Navid
Author-X-Name-Last: Khademi
Author-Name: Matthieu de Lapparent
Author-X-Name-First: Matthieu
Author-X-Name-Last: de Lapparent
Title: Women’s mode and trip structure choices in daily activity-travel: a developing country perspective
Abstract:
In this paper, we analyze the travel patterns of Iranian women, where typical patriarchal views and specific social and cultural norms may differ from the patterns of those in western societies. In addition to inherent psycho-physical gender differences, women in Iran can face special constraints forcing them not to be involved in all activity-travel patterns that people in developed countries usually undertake. We pay special attention to the role of marital and employment status on women’s activity-travel patterns. To this end, we develop a joint mode and daily activity pattern (DAP) discrete choice model, which is a two-level mixed nested Logit. The upper nest of the proposed model embodies women’s DAP choices, and the lower nest belongs to the mode choices. In this paper, we try to show how different factors in a patriarchal Muslim society like Iran affect or restrict women’s type and structure of activity-travel patterns.
Journal: Transportation Planning and Technology
Pages: 845-877
Issue: 8
Volume: 41
Year: 2018
Month: 11
X-DOI: 10.1080/03081060.2018.1526931
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1526931
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Handle: RePEc:taf:transp:v:41:y:2018:i:8:p:845-877
Template-Type: ReDIF-Article 1.0
Author-Name: Baocheng Zhang
Author-X-Name-First: Baocheng
Author-X-Name-Last: Zhang
Author-Name: Lili Wang
Author-X-Name-First: Lili
Author-X-Name-Last: Wang
Author-Name: Zhijian Ye
Author-X-Name-First: Zhijian
Author-X-Name-Last: Ye
Author-Name: Jianzhong Wang
Author-X-Name-First: Jianzhong
Author-X-Name-Last: Wang
Author-Name: Wenpeng Zhai
Author-X-Name-First: Wenpeng
Author-X-Name-Last: Zhai
Title: Evaluating the operational performance of airside and landside at Chinese airports with novel inputs
Abstract:
This paper evaluates the operational performance of airside and landside at Chinese airports with two novel inputs. Furthermore, the airport landside operation is decomposed into passenger-terminal operations and cargo-warehouse operations. One novel input is the capability of the runway system which is introduced into airside performance evaluation. The other novel input is cargo warehousing which is introduced into landside performance evaluation. To address multiple optimal solutions when estimating Returns to Scale in Data Envelopment Analysis, we adopted the Zhu and Shen method. This empirical study shows that neither the number of runways nor total runway length is a genuine index of runway system capability in the evaluation of airside performance. Only four airports achieved full efficiency in all eight measures while eight airports did not achieve any full efficiency. In addition, one airport did not perform well in the benchmark analysis.
Journal: Transportation Planning and Technology
Pages: 878-900
Issue: 8
Volume: 41
Year: 2018
Month: 11
X-DOI: 10.1080/03081060.2018.1526966
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1526966
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Handle: RePEc:taf:transp:v:41:y:2018:i:8:p:878-900
Template-Type: ReDIF-Article 1.0
Author-Name: Asif Raza
Author-X-Name-First: Asif
Author-X-Name-Last: Raza
Author-Name: Ming Zhong
Author-X-Name-First: Ming
Author-X-Name-Last: Zhong
Title: Hybrid artificial neural network and locally weighted regression models for lane-based short-term urban traffic flow forecasting
Abstract:
In recent years, there has been considerable research interest in short-term traffic flow forecasting. However, forecasting models offering a high accuracy at a fine temporal resolution (e.g. 1 or 5 min) and lane level are still rare. In this study, a combination of genetic algorithm, neural network and locally weighted regression is used to achieve optimal prediction under various input and traffic settings. The genetically optimized artificial neural network (GA-ANN) and locally weighted regression (GA-LWR) models are developed and tested, with the former forecasting traffic flow every 5-min within a 30-min period and the latter for forecasting traffic flow of a particular 5-min period of each for four lanes of an urban arterial road in Beijing, China. In particular, for morning peak and off-peak traffic flow prediction, the GA-ANN 5-min traffic flow model results in average errors of 3–5% and most 95th percentile errors of 7–14% for each of the four lanes; for the peak and off-peak time traffic flow predictions, the GA-LWR 5-min traffic flow model results in average errors of 2–4% and most 95th percentile errors are lower than 10% for each of the four lanes. When compared to previous models that usually offer average errors greater than 6–15%, such empirical findings should be of interest to and instrumental for transportation authorities to incorporate in their city- or state-wide Advanced Traveller Information Systems (ATIS).
Journal: Transportation Planning and Technology
Pages: 901-917
Issue: 8
Volume: 41
Year: 2018
Month: 11
X-DOI: 10.1080/03081060.2018.1526988
File-URL: http://hdl.handle.net/10.1080/03081060.2018.1526988
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Handle: RePEc:taf:transp:v:41:y:2018:i:8:p:901-917
Template-Type: ReDIF-Article 1.0
Author-Name: Jenhung Wang
Author-X-Name-First: Jenhung
Author-X-Name-Last: Wang
Author-Name: Yen-Chieh Wang
Author-X-Name-First: Yen-Chieh
Author-X-Name-Last: Wang
Author-Name: Chung-Wei Shen
Author-X-Name-First: Chung-Wei
Author-X-Name-Last: Shen
Author-Name: Pei-Chun Lin
Author-X-Name-First: Pei-Chun
Author-X-Name-Last: Lin
Title: Who needs automotive on-board navigation systems? Predicting operational performance from spatial anxiety and gender differences
Abstract:
This paper investigates relationships among gender, spatial anxiety, and operational performance of car navigation systems (CNSs) with a traditional Chinese interface. 600 study participants performed a route-locating task on a CNS and reported their competence to cope with spatial anxiety using the Spatial Anxiety Scale. The study found that gender predicted operational performance: female participants needed more time to perform the designated navigation task than male participants; gender predicted participants’ competence to cope with spatial anxiety: female participants reported lower competence to cope with spatial anxiety than male participants, and CNS interface design predicted CNS operational performance. These findings play an important role in determining CNS adoption for drivers. Findings also provide manufacturers and marketers with reliable information regarding at whom they should target their CNS products to demonstrate that manufacturers should develop interfaces that fit small-display CNSs based on gender or create a gender-neutral user experience.
Journal: Transportation Planning and Technology
Pages: 539-552
Issue: 6
Volume: 43
Year: 2020
Month: 8
X-DOI: 10.1080/03081060.2020.1780706
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1780706
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Handle: RePEc:taf:transp:v:43:y:2020:i:6:p:539-552
Template-Type: ReDIF-Article 1.0
Author-Name: Albert Lo
Author-X-Name-First: Albert
Author-X-Name-Last: Lo
Author-Name: Siva Srikukenthiran
Author-X-Name-First: Siva
Author-X-Name-Last: Srikukenthiran
Author-Name: Eric J. Miller
Author-X-Name-First: Eric J.
Author-X-Name-Last: Miller
Author-Name: Khandker N. Habib
Author-X-Name-First: Khandker N.
Author-X-Name-Last: Habib
Title: Impact of multiple sample frames on data quality of household travel surveys: the case of the 2016 Transportation Tomorrow Survey
Abstract:
The landline sample frame has been the method for recruiting participants for household travel surveys for many years. However, more recently, the representativeness of populations has declined with the reduction of household landline use and the rise of cellphone use. As a result, interest has turned to construct the survey sample frame using multiple lists. To attempt to alleviate underrepresentation, the 2016 iteration of the Transportation Tomorrow Survey (TTS) – the regional household travel survey of the Greater Golden Horseshoe located in southern Ontario, Canada – used multiple sample frames consisting of address/phone, address-only, and phone-only lists. To analyze the impact of a multi-frame approach, sample frames are compared based on demographic and trip variables to investigate whether there are significant differences between sample frames. Trip variable analysis via chi-squared and interaction effects modeling show small but significant differences, particularly between address-only and address/phone frames. The multiple sample frame is shown to improve representation compared to the singular landline frame; however, some broad representation issues remain with respect to age and household-size distributions, particularly in rural areas. This points to the need for alternative methods to recruit younger individuals and larger households.
Journal: Transportation Planning and Technology
Pages: 553-570
Issue: 6
Volume: 43
Year: 2020
Month: 8
X-DOI: 10.1080/03081060.2020.1780707
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1780707
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Handle: RePEc:taf:transp:v:43:y:2020:i:6:p:553-570
Template-Type: ReDIF-Article 1.0
Author-Name: Junseo Bae
Author-X-Name-First: Junseo
Author-X-Name-Last: Bae
Author-Name: Kunhee Choi
Author-X-Name-First: Kunhee
Author-X-Name-Last: Choi
Title: A new perspective for precision evaluation of large-scale traffic sensor data measurement
Abstract:
Use of sensor data has been increasingly common in recent years, yet there is still a knowledge gap in evaluating the precision of traffic sensor data being used in traffic analyses for developing a transportation management plan. This paper fills this gap by exploring a new approach to evaluating the level of precision of large-scale traffic sensor data. The proposed analytical framework incorporates a spatiotemporal domain for the purpose of projecting spatiotemporal characteristics of the data into a repeatability and reproducibility (R&R) study. The main finding of this study is that the proposed framework is effective in examining the precision level of large-scale data spatiotemporally. The proposed framework would be useful for researchers and practitioners to benchmark precision measurements of traffic sensor data in a way to gather quality data and avoid any potential biased result of deeper traffic analyses.
Journal: Transportation Planning and Technology
Pages: 571-585
Issue: 6
Volume: 43
Year: 2020
Month: 8
X-DOI: 10.1080/03081060.2020.1780708
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1780708
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Handle: RePEc:taf:transp:v:43:y:2020:i:6:p:571-585
Template-Type: ReDIF-Article 1.0
Author-Name: Ta-Hui Yang
Author-X-Name-First: Ta-Hui
Author-X-Name-Last: Yang
Author-Name: Ching-Hui Tang
Author-X-Name-First: Ching-Hui
Author-X-Name-Last: Tang
Author-Name: Hung-Chun Hsiao
Author-X-Name-First: Hung-Chun
Author-X-Name-Last: Hsiao
Title: Strategic airline network design problem in a duopolistic market
Abstract:
This paper addresses a competitive airline hub-and-spoke network design problem in a duopolistic market with sequential airline entry. Two airlines, a leader and a follower, enter the market sequentially to make decisions about their own flight networks. Each must consider their opponent’s reactions and respond to each other’s decisions in making their own, leading to interactive competition between them. A bi-level model is proposed to formulate the behaviors and decisions of the two airlines. In addition, an interactive solution procedure based on a genetic algorithm (GA) is developed to repeatedly solve the upper and lower level models. Finally, we generate a numerical example based on the regional air market in Taiwan and China. The results provide useful insights and highlight the importance of considering interactive competition for airlines when designing their flight networks.
Journal: Transportation Planning and Technology
Pages: 586-601
Issue: 6
Volume: 43
Year: 2020
Month: 8
X-DOI: 10.1080/03081060.2020.1780709
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1780709
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Handle: RePEc:taf:transp:v:43:y:2020:i:6:p:586-601
Template-Type: ReDIF-Article 1.0
Author-Name: Andalib Shams
Author-X-Name-First: Andalib
Author-X-Name-Last: Shams
Author-Name: Milan Zlatkovic
Author-X-Name-First: Milan
Author-X-Name-Last: Zlatkovic
Title: Effects of capacity and transit improvements on traffic and transit operations
Abstract:
Transportation agencies are facing problems of inadequate capacities to meet growing traffic demand. Street widening, signal operations optimization, innovative designs and multimodal transportation modes are traffic management strategies that can improve traffic operations along congested corridors. The goal of this paper is to assess future 2040 traffic and transit conditions along sections of Redwood Road in Salt Lake County, Utah, and develop and test potential operational improvements through VISSIM traffic simulation. Potential improvements, such as street widening, signal optimization, transit exclusive lanes with Transit Signal Priority (TSP) and adding a Continuous Flow Intersection (CFI) are analyzed. The improvements tested showed potential for reducing vehicular travel times between 6% to 20%, and delays 25% to 35%. Transit travel times reduced up to 40%, with delay reductions up to 60%. A combination of different strategies has the potential to improve traffic and transit operations along the busiest sections of Redwood Road.
Journal: Transportation Planning and Technology
Pages: 602-619
Issue: 6
Volume: 43
Year: 2020
Month: 8
X-DOI: 10.1080/03081060.2020.1780710
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1780710
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Handle: RePEc:taf:transp:v:43:y:2020:i:6:p:602-619
Template-Type: ReDIF-Article 1.0
Author-Name: Prasanta K. Sahu
Author-X-Name-First: Prasanta K.
Author-X-Name-Last: Sahu
Author-Name: Aitichya Chandra
Author-X-Name-First: Aitichya
Author-X-Name-Last: Chandra
Author-Name: Agnivesh Pani
Author-X-Name-First: Agnivesh
Author-X-Name-Last: Pani
Author-Name: Bandhan Bandhu Majumdar
Author-X-Name-First: Bandhan Bandhu
Author-X-Name-Last: Majumdar
Title: Designing freight traffic analysis zones for metropolitan areas: identification of optimal scale for macro-level freight travel analysis
Abstract:
This paper contributes to the emerging literature on freight studies by identifying the optimal freight traffic analysis zone (FTAZ) system at which to conduct macro-level freight travel analysis. To arrive at the optimal scale, we develop alternate zone systems by grouping census wards with similar freight-related characteristics (industrial characteristics, commercial land use characteristics, locational characteristics and socio-demographic characteristics). The resultant zone systems are analysed at multiple geographic scales and the optimal scale of each zone system is determined by performing the Brown–Forsythe test. Results suggest that a 1:3 aggregation ratio (24–28 zones) is the optimal scale for Metropolitan FTAZs, whereas the publicly available ad-hoc zone system and prior literature on National FTAZs follow 1:10 aggregation. The study findings suggest that Metropolitan planning organizations need to reconsider their existing data collection strategy, consider a larger aggregation ratio and, by extension, adopt smaller zones to ensure that both local and global freight travel characteristics are captured in freight travel analyses.
Journal: Transportation Planning and Technology
Pages: 620-637
Issue: 6
Volume: 43
Year: 2020
Month: 8
X-DOI: 10.1080/03081060.2020.1780711
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1780711
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Handle: RePEc:taf:transp:v:43:y:2020:i:6:p:620-637
Template-Type: ReDIF-Article 1.0
Author-Name: Raj Bridgelall
Author-X-Name-First: Raj
Author-X-Name-Last: Bridgelall
Author-Name: Denver D. Tolliver
Author-X-Name-First: Denver D.
Author-X-Name-Last: Tolliver
Title: Closed form models to assess railroad technology investments
Abstract:
Class I railroads in North America collectively invested USUS$11.2 billion to comply with a U.S. federal mandate to deploy positive train control as a form of train protection system. This amount dwarfs the potential savings from accidents the technology could prevent. Therefore, railroads must seek additional benefits. This research contributes simple closed-form models to inform strategies that can leverage the technology deployment by estimating the annual additional net benefits, internal rate of return, and benefit-cost ratio needed for a desired payback period.
Journal: Transportation Planning and Technology
Pages: 639-650
Issue: 7
Volume: 43
Year: 2020
Month: 10
X-DOI: 10.1080/03081060.2020.1805541
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1805541
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Handle: RePEc:taf:transp:v:43:y:2020:i:7:p:639-650
Template-Type: ReDIF-Article 1.0
Author-Name: Edward C. S. Ku
Author-X-Name-First: Edward C. S.
Author-X-Name-Last: Ku
Title: Spreading distinctive insignia benefits from mobile service: evidence from a mobile application of transportation
Abstract:
Mobile commerce (m-commerce) faces a growing array of client devices for which applications are designed. Applications developed for general consumer use must be compatible with a wide range of devices. This research investigates how perceived usefulness and enjoyment affect intention to use a mobile application service (T-Express). In this study, we formulate a commitment model from the perspective of the social identity and technology acceptance perspective. Empirical data were collected by conducting a field survey of users of T-Express from Taiwan High Speed Rail Corporation (THSRC) stations in Taiwan. The main findings of the study are that wireless technology provides great value to businesses when it allows consumers to access real-time data to make timely decisions that either decrease costs or increase revenues; and to achieve a higher intention to use mobile applications, there should be a clear communication process between mobile application and passenger. Our findings indicate that one of the more overt illustrations of the power of packaging symbolism involves package design strategies that serve to provide a radical new upscale positioning for the THSRC brand.
Journal: Transportation Planning and Technology
Pages: 651-669
Issue: 7
Volume: 43
Year: 2020
Month: 10
X-DOI: 10.1080/03081060.2020.1805542
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1805542
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Handle: RePEc:taf:transp:v:43:y:2020:i:7:p:651-669
Template-Type: ReDIF-Article 1.0
Author-Name: Erma Suryani
Author-X-Name-First: Erma
Author-X-Name-Last: Suryani
Author-Name: Rully A. Hendrawan
Author-X-Name-First: Rully A.
Author-X-Name-Last: Hendrawan
Author-Name: Philip F.E. Adipraja
Author-X-Name-First: Philip F.E.
Author-X-Name-Last: Adipraja
Author-Name: Arif Wibisono
Author-X-Name-First: Arif
Author-X-Name-Last: Wibisono
Author-Name: Basuki Widodo
Author-X-Name-First: Basuki
Author-X-Name-Last: Widodo
Author-Name: Rarasmaya Indraswari
Author-X-Name-First: Rarasmaya
Author-X-Name-Last: Indraswari
Title: Modelling and simulation of transportation system effectiveness to reduce traffic congestion: a system dynamics framework
Abstract:
This paper is designed to evaluate and improve the effectiveness of transportation systems and reduce traffic congestion through the use of simulation models and scenario development. A system dynamics framework is used to test and evaluate the alternatives of future strategies for the city of Surabaya, Indonesia. Some factors affecting the effectiveness of transport systems include operational effectiveness and service effectiveness, as well as uncertainty. To improve the effectiveness of transportation systems, several strategies can be implemented, such as subsidizing public transportation, increasing the cost of private vehicle parking fees, raising taxes on private vehicles, and reducing delays in public transportation through scenario development. Scenario results show that, by pursuing these strategies, effectiveness could be improved by 80% as the impact of the increase in operational and service effectiveness, helping to mitigate traffic congestion. Congestion could be reduced to 70% (on average) due to the decrease in daily traffic.
Journal: Transportation Planning and Technology
Pages: 670-697
Issue: 7
Volume: 43
Year: 2020
Month: 10
X-DOI: 10.1080/03081060.2020.1805543
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1805543
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Handle: RePEc:taf:transp:v:43:y:2020:i:7:p:670-697
Template-Type: ReDIF-Article 1.0
Author-Name: Jing Shi
Author-X-Name-First: Jing
Author-X-Name-Last: Shi
Author-Name: Lei Xin
Author-X-Name-First: Lei
Author-X-Name-Last: Xin
Author-Name: Yang Liu
Author-X-Name-First: Yang
Author-X-Name-Last: Liu
Title: Simulation of tourists’ spatiotemporal behaviour and result validation with social media data
Abstract:
This study explores the pattern and formation mechanism of tourists’ spatiotemporal behaviour by modelling, which is crucial for tourism transportation planning and management. The tourism utility maximization principle and tourism demand spillover effect are introduced to explain personal spatiotemporal behaviour. Based on the mathematical description of agent behaviour and simulation environment, an Agent Based Tourist Travel Simulation Model (ABTTSM) is systematically established to include an evaluation of the impact of a new high-speed rail operation in a region of high tourist attraction. Novel spatiotemporal data from social media is employed to test the simulation results. It is found that the transfer probability matrices of the simulation results and social media data are highly correlated and, as a consequence, the tourism circle division is almost unanimous. This means the ABTSM can effectively simulate tourists’ spatiotemporal behaviour and be applied in the planning and management of tourism and transportation.
Journal: Transportation Planning and Technology
Pages: 698-716
Issue: 7
Volume: 43
Year: 2020
Month: 10
X-DOI: 10.1080/03081060.2020.1805544
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1805544
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Handle: RePEc:taf:transp:v:43:y:2020:i:7:p:698-716
Template-Type: ReDIF-Article 1.0
Author-Name: Huanmei Qin
Author-X-Name-First: Huanmei
Author-X-Name-Last: Qin
Author-Name: Xiuhan Yang
Author-X-Name-First: Xiuhan
Author-X-Name-Last: Yang
Author-Name: Yao-Jan Wu
Author-X-Name-First: Yao-Jan
Author-X-Name-Last: Wu
Author-Name: Hongzhi Guan
Author-X-Name-First: Hongzhi
Author-X-Name-Last: Guan
Author-Name: Pengfei Wang
Author-X-Name-First: Pengfei
Author-X-Name-Last: Wang
Author-Name: Nasrin Shahinpoor
Author-X-Name-First: Nasrin
Author-X-Name-Last: Shahinpoor
Title: Analysis of parking cruising behaviour and parking location choice
Abstract:
This paper explores car drivers’ cruising behaviour and location choice for curb parking in areas with insufficient parking space based on a survey of car drivers in Beijing, China. Preliminary analysis of the data show that car drivers’ cruising behaviour is closely related to their parking duration and parking location. A multinomial probit (MNP) model is used to analyse cruising behaviour and the results show that the closer to the destination car drivers are, the more likely they choose to park on the curb. The adjacent locations are the basis of car drivers’ sequential parking decisions at different locations. The research results provide a better understanding of cruising behaviour for parking and recommendations for reducing cruising for parking. The provision of parking information can help regulate the parking demand distribution.
Journal: Transportation Planning and Technology
Pages: 717-734
Issue: 7
Volume: 43
Year: 2020
Month: 10
X-DOI: 10.1080/03081060.2020.1805545
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1805545
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Handle: RePEc:taf:transp:v:43:y:2020:i:7:p:717-734
Template-Type: ReDIF-Article 1.0
Author-Name: Dilay Çelebi
Author-X-Name-First: Dilay
Author-X-Name-Last: Çelebi
Author-Name: Şükrü İmre
Author-X-Name-First: Şükrü
Author-X-Name-Last: İmre
Title: Measuring crowding-related comfort in public transport
Abstract:
In this paper we focus on the estimation of crowding in public transport – specifically urban rail systems – and its effect on perceived comfort. It is different from similar studies in the method it employs for estimating crowding levels in vehicles. Specifically, we formulate a function of time and location, which uses only passenger embarking data to estimate the number of passengers in vehicles. Then we convert the estimated crowding values into perceived discomfort levels by trip section. Our method depends on hourly seasonality assumptions but provides good estimates of crowding in urban rail systems even when passenger alighting data is not available. We illustrate the implementation of our model with the example of the Istanbul Metro system.
Journal: Transportation Planning and Technology
Pages: 735-750
Issue: 7
Volume: 43
Year: 2020
Month: 10
X-DOI: 10.1080/03081060.2020.1805546
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1805546
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Handle: RePEc:taf:transp:v:43:y:2020:i:7:p:735-750
Template-Type: ReDIF-Article 1.0
Author-Name: Genevieve Giuliano
Author-X-Name-First: Genevieve
Author-X-Name-Last: Giuliano
Author-Name: Sandip Chakrabarti
Author-X-Name-First: Sandip
Author-X-Name-Last: Chakrabarti
Title: Analyzing intra-metropolitan variation in highway traffic performance in Los Angeles using archived real-time data
Abstract:
We conduct a case study of highway system performance in Los Angeles County. We use the Los Angeles Archived Data Management System, a comprehensive archive of regional real-time multi-modal transportation system data, to analyze effects of systematic, functional, random, and land use factors on performance variation over different time periods of the day. To understand functional class effects, we use cluster analysis on geometric and demand parameters to identify functionally similar groups of highway segments. We compare performance between groups and across segments within groups. We perform regression analysis to test the influence of various factors on performance. We find that after controlling for time of day, accidents, and adjacent population density, group or peer effects have significant influence. This suggests that peer group level, as opposed to regional, performance measurement and monitoring is useful. Our research has significant implications for transportation system monitoring and planning.
Journal: Transportation Planning and Technology
Pages: 751-770
Issue: 8
Volume: 43
Year: 2020
Month: 11
X-DOI: 10.1080/03081060.2020.1828931
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1828931
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Handle: RePEc:taf:transp:v:43:y:2020:i:8:p:751-770
Template-Type: ReDIF-Article 1.0
Author-Name: Yisong Lin
Author-X-Name-First: Yisong
Author-X-Name-Last: Lin
Author-Name: Xuefeng Wang
Author-X-Name-First: Xuefeng
Author-X-Name-Last: Wang
Title: Coopetition in the supply chain between container liners and freight forwarders: a game theory approach
Abstract:
A common objective of container liners is to expand to both ends of the supply chain, thereby providing customers seamless access to a wider range of logistics. There are many overlaps between the service provided by container liners and freight forwarders, which may affect their relationships. However, there is a lack of research on this issue. This study attempts to analyze the basis for cooperation, the causes of conflict, and the means to achieve sustainable relationships in the supply chain. It is based on container liners’ strategy to extend end-to-end service and improve layout through acquisition and investment. The study fills the gap in the current literature on the relationship between container liners and freight forwarders. It is also one of the few studies to apply game theory to coopetition in the shipping industry. The results have practical significance in terms of learning how to improve cooperation in the supply chain.
Journal: Transportation Planning and Technology
Pages: 771-782
Issue: 8
Volume: 43
Year: 2020
Month: 11
X-DOI: 10.1080/03081060.2020.1828932
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1828932
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Handle: RePEc:taf:transp:v:43:y:2020:i:8:p:771-782
Template-Type: ReDIF-Article 1.0
Author-Name: S. A. Ramadhan
Author-X-Name-First: S. A.
Author-X-Name-Last: Ramadhan
Author-Name: H. Y. Sutarto
Author-X-Name-First: H. Y.
Author-X-Name-Last: Sutarto
Author-Name: G. S. Kuswana
Author-X-Name-First: G. S.
Author-X-Name-Last: Kuswana
Author-Name: E. Joelianto
Author-X-Name-First: E.
Author-X-Name-Last: Joelianto
Title: Application of area traffic control using the max-pressure algorithm
Abstract:
This paper proposes an application of max-pressure control for network-wide signal control at Bandung, Indonesia. The max-pressure approach is employed for a specific disturbed network system synthetic scenario, created with the aim to simulate spillback conditions which causing long congestion across road segments in real traffic conditions. The max-pressure controller is implemented for a network of six signalized intersections in PTV Vissim, a traffic micro-simulation platform. The validated model is generated before implementing in the Vissim traffic simulation. Three types of controller are studied: the currently implemented controller (fixed time controller), cycle-based max-pressure and slotted-based max-pressure. The simulation results show that max-pressure control is more powerful than the currently implemented technique in terms of the capability to avoid congestion by spreading vehicles to other road segments with respect to some events that can be seen as a disturbance.
Journal: Transportation Planning and Technology
Pages: 783-802
Issue: 8
Volume: 43
Year: 2020
Month: 11
X-DOI: 10.1080/03081060.2020.1828934
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1828934
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Handle: RePEc:taf:transp:v:43:y:2020:i:8:p:783-802
Template-Type: ReDIF-Article 1.0
Author-Name: Ingo A. Hansen
Author-X-Name-First: Ingo A.
Author-X-Name-Last: Hansen
Title: Hyperloop transport technology assessment and system analysis
Abstract:
The Hyperloop concept, pod speed competitions and current project developments have recently attracted much publicity. In this paper the transport technology of the vacuumed tube transport project Hyperloop is assessed through a system analysis of its principal aims, functional design, transport capacity and demand in comparison with existing commercial airlines, high-speed rail, and Maglev lines. First, the potential for high-speed long-distance travel demand for Hyperloop based on existing airline transport volumes between major airports in Germany on the one hand, and the proposed Hyperloop link from Los Angeles to San Francisco in California on the other, is assessed in general terms. Second, the technical feasibility of the proposed Hyperloop concept for vehicle design, capacity, operations, propulsion, guidance, energy supply, traffic control, safety, alignment, and construction is discussed in more detail. Third, possible environmental impacts and uncertain investment, operating and maintenance costs for implementation of a Hyperloop line are described. Finally, the risks for further Hyperloop project development and the need for more transparent research are emphasized.
Journal: Transportation Planning and Technology
Pages: 803-820
Issue: 8
Volume: 43
Year: 2020
Month: 11
X-DOI: 10.1080/03081060.2020.1828935
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1828935
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Handle: RePEc:taf:transp:v:43:y:2020:i:8:p:803-820
Template-Type: ReDIF-Article 1.0
Author-Name: Xingang Li
Author-X-Name-First: Xingang
Author-X-Name-Last: Li
Author-Name: Xingfei Wang
Author-X-Name-First: Xingfei
Author-X-Name-Last: Wang
Author-Name: Bin Jia
Author-X-Name-First: Bin
Author-X-Name-Last: Jia
Author-Name: Rui Jiang
Author-X-Name-First: Rui
Author-X-Name-Last: Jiang
Title: Modal split and commuting patterns on a bottleneck-constrained highway with peak-only bus lane
Abstract:
In this paper, commuters’ travel mode and departure time choice behaviors on a bottleneck-constrained highway with a peak-only bus lane (PBL) are investigated. The PBL occupies part of the capacity of the bottleneck when it is open. The capacity of the bottleneck for both auto and bus modes is time-varying. As the total number of commuters grows, we consider three regimes with different equilibrium commuting patterns – low, medium and high travel demand. The analytical results for the arrival rates of the two modes are presented and the numerical results are consistent with the analytical results. When the PBL is instituted, the number of bus mode commuters increases and total travel cost decreases with other parameters remaining fixed. The optimal capacity and opening period for the peak-only bus lane and the optimal bus dispatch frequency are discussed in detail.
Journal: Transportation Planning and Technology
Pages: 821-850
Issue: 8
Volume: 43
Year: 2020
Month: 11
X-DOI: 10.1080/03081060.2020.1829091
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1829091
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Handle: RePEc:taf:transp:v:43:y:2020:i:8:p:821-850
Template-Type: ReDIF-Article 1.0
Author-Name: Buket Capali
Author-X-Name-First: Buket
Author-X-Name-Last: Capali
Author-Name: Halim Ceylan
Author-X-Name-First: Halim
Author-X-Name-Last: Ceylan
Title: A multi-objective meta-heuristic approach for the transit network design and frequency setting problem
Abstract:
The Transit Network Design and Frequency Setting Problem (TNDFSP) can be defined as the creation of effective routes in a public transport network and the determination of relevant frequencies. Generally, the TNDFSP problem is in the same category as the Traveling Salesman Problem (TSP), which is known to be a non-deterministic polynomial-period (NP-hard) difficult problem. This study consists of two stages: first, the design of a public transport network with an evolutionary optimization technique – the Intelligent Water Drops (IWD) algorithm – based on the TSP and the determination of relevant frequencies; and second, the assignment of passengers to designated routes. All decisions related to public transport network design may be evaluated by considering environmental costs in relation to passengers, operators and the environment. This study presents an acceptable, constructive and original algorithm.
Journal: Transportation Planning and Technology
Pages: 851-867
Issue: 8
Volume: 43
Year: 2020
Month: 11
X-DOI: 10.1080/03081060.2020.1829093
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1829093
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Handle: RePEc:taf:transp:v:43:y:2020:i:8:p:851-867
Template-Type: ReDIF-Article 1.0
Author-Name: Steven R. Gehrke
Author-X-Name-First: Steven R.
Author-X-Name-Last: Gehrke
Author-Name: Timothy G. Reardon
Author-X-Name-First: Timothy G.
Author-X-Name-Last: Reardon
Title: Direct demand modelling approach to forecast cycling activity for a proposed bike facility
Abstract:
In the United States, planning and design efforts to generate bike-friendly environments through the greater provision of safe, low-stress bike infrastructure in our cities continue to advance. In Cambridge, Massachusetts, construction of the Grand Junction Pathway – an envisioned shared-use pathway – is at the heart of a citywide effort to enhance its active transportation system. However, a challenge – shared by many public agencies given that data on cycling activity are rarely frequently systematically gathered – is the creation of a baseline estimate of cycling demand for this planned network link. Using short-duration manual data supplemented with long-duration count data, this study employs a state-of-the-practice method for generating annual average daily bicycle trips for current bike network facilities. A statistical modelling strategy is then undertaken to forecast the volume of daily cyclists that the proposed off-street, shared-use path could expect to attract given its physical context and the socioeconomic attributes of nearby residents.
Journal: Transportation Planning and Technology
Pages: 1-15
Issue: 1
Volume: 44
Year: 2021
Month: 01
X-DOI: 10.1080/03081060.2020.1849959
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1849959
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Handle: RePEc:taf:transp:v:44:y:2021:i:1:p:1-15
Template-Type: ReDIF-Article 1.0
Author-Name: David Metz
Author-X-Name-First: David
Author-X-Name-Last: Metz
Title: Time constraints and travel behaviour
Abstract:
Considerable observational evidence indicates that travel time, averaged across a population, is stable at about an hour a day. This implies both an upper and a lower bound to time that can be expended on travel. The upper bound explains the self-limiting nature of road traffic congestion, as well as the difficulty experienced in attempting mitigation: the prospect of delays deters some road users, who are attracted back following interventions aimed at relieving congestion. The lower bound implies that time savings cannot be the main economic benefit of transport investment, which means that conventional transport economic appraisal is misleading. In reality, the main benefit for users is increased access to desired destinations, made possible by faster travel, which is the origin of induced traffic. Access is subject to saturation, consistent with the evidence of travel demand saturation. However, access is difficult to monetise for inclusion in cost–benefit analysis. Consequential uplift in real estate values may be a more practical way of estimating access benefits, which is relevant to the possibility of capturing part of such uplift to help fund transport investment that enhances such access.
Journal: Transportation Planning and Technology
Pages: 16-29
Issue: 1
Volume: 44
Year: 2021
Month: 01
X-DOI: 10.1080/03081060.2020.1851445
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1851445
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Handle: RePEc:taf:transp:v:44:y:2021:i:1:p:16-29
Template-Type: ReDIF-Article 1.0
Author-Name: Darren Divall
Author-X-Name-First: Darren
Author-X-Name-Last: Divall
Author-Name: Tendayi Kureya
Author-X-Name-First: Tendayi
Author-X-Name-Last: Kureya
Author-Name: Tom Bishop
Author-X-Name-First: Tom
Author-X-Name-Last: Bishop
Author-Name: Caroline Barber
Author-X-Name-First: Caroline
Author-X-Name-Last: Barber
Author-Name: Cathy Green
Author-X-Name-First: Cathy
Author-X-Name-Last: Green
Author-Name: Sam Clark
Author-X-Name-First: Sam
Author-X-Name-Last: Clark
Title: The potential role of mobile phone technology in rural motorcycle and three-wheeler taxi services in Africa
Abstract:
Over the last two decades, motorcycle and motorised three-wheeler taxis have become important means of transport in many sub-Saharan African countries, including in rural areas. However, the emerging role of mobile phone technology in improving mobility in rural areas is currently under-explored in the literature. This paper presents the findings of a small-scale research study that was undertaken into the use of mobile phone technology in the context of motorcycle and three-wheeler taxi use, and its potential to improve rural access. Informed by a literature review, the research focuses on four countries: Kenya, Rwanda, Tanzania and Uganda. Semi-structured interviews and focus group discussions were conducted with riders of motorcycle and motorised three-wheeler taxis and the developers of mobile phone-enabled transport technologies. Mobile technology linked to the utilisation of motorcycle and three-wheeler taxis is increasing, but ‘ride-hailing’ applications (apps) are likely to be limited to urban areas for the foreseeable future due to various disincentives to their use in rural areas. The study identifies several promising innovations that combine the use of motorcycles and three-wheelers with mobile technology to increase rural people’s access to essential services and opportunities. These have the potential to be scaled up or expanded to other countries.
Journal: Transportation Planning and Technology
Pages: 30-44
Issue: 1
Volume: 44
Year: 2021
Month: 01
X-DOI: 10.1080/03081060.2020.1851446
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1851446
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Handle: RePEc:taf:transp:v:44:y:2021:i:1:p:30-44
Template-Type: ReDIF-Article 1.0
Author-Name: Martin Pernkopf
Author-X-Name-First: Martin
Author-X-Name-Last: Pernkopf
Author-Name: Manfred Gronalt
Author-X-Name-First: Manfred
Author-X-Name-Last: Gronalt
Title: An aerial ropeway transportation system for combined freight and passenger transport – a simulation study
Abstract:
Aerial ropeways or cableways are a common means of transport in mountainous regions. Quite unusual is a ropeway combining both freight and passenger transport. Such a system provides a supplementary solution to arising logistical problems in areas with dedicated spatial challenges. A simulation study for a potential application linking two infrastructural nodes in an alpine tourist region was used to analyse the performance of such a system. Various system configurations and operating strategies for controlling the freight transport were examined. The major findings show the interrelated effects on freight and passenger transportation capacities and the trade-off between them. The simulation model can easily be adapted and transferred to other potential applications.
Journal: Transportation Planning and Technology
Pages: 45-62
Issue: 1
Volume: 44
Year: 2021
Month: 01
X-DOI: 10.1080/03081060.2020.1851450
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1851450
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Handle: RePEc:taf:transp:v:44:y:2021:i:1:p:45-62
Template-Type: ReDIF-Article 1.0
Author-Name: Dimitrios Paraskevadakis
Author-X-Name-First: Dimitrios
Author-X-Name-Last: Paraskevadakis
Author-Name: Alan Bury
Author-X-Name-First: Alan
Author-X-Name-Last: Bury
Author-Name: Jun Ren
Author-X-Name-First: Jun
Author-X-Name-Last: Ren
Author-Name: Jin Wang
Author-X-Name-First: Jin
Author-X-Name-Last: Wang
Title: A services operations performance measurement framework for multimodal logistics gateways in emerging megaregions
Abstract:
Gateways in emerging megaregions have the existing transport infrastructure tο support modal shift and deliver sustainable development. To address these issues, there is a need for more efficient traffic management solutions and an accompanying shift away from road transportation towards more environmentally friendly modes both for freight and for passengers. More importantly, an integrated methodological approach needs to be adopted by decision-makers when they assess existing and planned transport infrastructure for its ongoing sustainable development. This research provides a novel approach to the performance evaluation of modal shift and transport infrastructure service quality. The application and combination of Importance-Performance Analysis (IPA) and Analytical Hierarchical Process (AHP) in an intermodal regional case study provides a straightforward methodology for the assessment of sustainable development. In addition, added value is provided to the literature for long term scenarios’ planning for sustainable transport infrastructure.
Journal: Transportation Planning and Technology
Pages: 63-92
Issue: 1
Volume: 44
Year: 2021
Month: 01
X-DOI: 10.1080/03081060.2020.1851451
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1851451
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Handle: RePEc:taf:transp:v:44:y:2021:i:1:p:63-92
Template-Type: ReDIF-Article 1.0
Author-Name: Subasish Das
Author-X-Name-First: Subasish
Author-X-Name-Last: Das
Title: Traffic volume prediction on low-volume roadways: a Cubist approach
Abstract:
A significant aspect of the U.S. Department of Transportation’s Highway Safety Improvement Program (HSIP) rulemaking is the prerequisite that states must gather and utilize Model Inventory of Roadway Elements (MIRE) for all public paved roads, including low-volume roadways (LVR). States are particularly not equipped with the ability to collect traffic volumes of LVRs due to issues such as budgetary constraints. One alternative is to estimate traffic volumes of LVRs using regression or machine learning (ML) models. The present study accomplishes this by developing a ML framework to estimate traffic volumes on LVRs. By using available traffic counts on low-volume roads in Minnesota, this study applies and validates three different ML models (random forest, support vector regression, and Cubist) to estimate traffic volumes. The models include various traffic and non-traffic (e.g. demographic and socio-economic) variables. Overall, the Cubist model shows better performance compared to support vector regression and random forests. Additionally, the Cubist approach provides rule-based equations for different subsets of data. The findings of this study can be beneficial for transportation communities associated with LVRs.
Journal: Transportation Planning and Technology
Pages: 93-110
Issue: 1
Volume: 44
Year: 2021
Month: 01
X-DOI: 10.1080/03081060.2020.1851452
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1851452
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Handle: RePEc:taf:transp:v:44:y:2021:i:1:p:93-110
Template-Type: ReDIF-Article 1.0
Author-Name: Xiaoquan Wang
Author-X-Name-First: Xiaoquan
Author-X-Name-Last: Wang
Author-Name: Chunfu Shao
Author-X-Name-First: Chunfu
Author-X-Name-Last: Shao
Author-Name: Chaoying Yin
Author-X-Name-First: Chaoying
Author-X-Name-Last: Yin
Author-Name: Chunjiao Dong
Author-X-Name-First: Chunjiao
Author-X-Name-Last: Dong
Title: Exploring the effects of the built environment on commuting mode choice in neighborhoods near public transit stations: evidence from China
Abstract:
Public transport services are often improved to decrease auto-related mobility. However, it remains unclear how the built environment influences auto ownership and commuting mode choice near public transit stations. Using 3318 individuals across China, this study contributes to investigating the relationship between the built environment, auto ownership and commuting mode choice simultaneously in neighborhoods near public transit stations by employing an integration of a structural equation model (SEM) and discrete choice model (DCM). The results indicate that the built environment exhibits significant impacts on auto-related mobility near public transit stations and auto ownership plays an intermediary role between the exogenous variables and commuting mode choice, thus it can moderate the influences of built environment attributes on commuting mode choice. The results suggest that increasing green coverage rates and promoting diverse land use development strategies in transit-oriented development (TOD) areas may make contributions to auto-related mobility reduction and low-carbon travel initiatives.
Journal: Transportation Planning and Technology
Pages: 111-127
Issue: 1
Volume: 44
Year: 2021
Month: 01
X-DOI: 10.1080/03081060.2020.1851453
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1851453
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Handle: RePEc:taf:transp:v:44:y:2021:i:1:p:111-127
Template-Type: ReDIF-Article 1.0
Author-Name: Pengfei Liu
Author-X-Name-First: Pengfei
Author-X-Name-Last: Liu
Author-Name: Wei David Fan
Author-X-Name-First: Wei David
Author-X-Name-Last: Fan
Title: Exploring the impact of connected and autonomous vehicles on mobility and environment at signalized intersections through vehicle-to-infrastructure (V2I) and infrastructure-to-vehicle (I2V) communications
Abstract:
Connected and autonomous vehicle (CAV) technologies are expected to improve the quality of intersection operations through Vehicle-to-Infrastructure (V2I) and Infrastructure-to-Vehicle (I2V) communications. This study investigates mobility and environmental impacts of CAVs on signalized intersections. With I2V communication capability, CAVs are able to receive the real-time traffic signal information while approaching the intersections. A speed control strategy for CAVs is developed and optimal speeds for CAVs are calculated based on their locations and signal conditions. The analysis is conducted in a mixed traffic environment with combination of regular vehicles, autonomous vehicles, and CAVs. The vehicle delay and emissions at the selected intersection are quantified with respect to different market penetration rates of CAVs. The results indicate that CAVs can reduce vehicle delay by as much as 46.06% and 33.47% in emissions compared to regular vehicles. The proposed strategy can effectively improve the mobility and environment at signalized intersections.
Journal: Transportation Planning and Technology
Pages: 129-138
Issue: 2
Volume: 44
Year: 2021
Month: 02
X-DOI: 10.1080/03081060.2020.1868088
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1868088
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Handle: RePEc:taf:transp:v:44:y:2021:i:2:p:129-138
Template-Type: ReDIF-Article 1.0
Author-Name: Aleksandar Jovanović
Author-X-Name-First: Aleksandar
Author-X-Name-Last: Jovanović
Author-Name: Dušan Teodorović
Author-X-Name-First: Dušan
Author-X-Name-Last: Teodorović
Title: Multi-objective optimization of a single intersection
Abstract:
Algorithms for optimizing traffic operations at a single intersection consider mostly one objective function (often vehicle delays). Such an approach can lead to long pedestrian waiting times as well as reducing safety conditions at the intersection. In this paper, a multicriteria optimization approach to the single intersection traffic control problem is presented. The trade-off algorithm between vehicle and pedestrian delay, under a fixed time control model, is developed. The metaheuristic Bee Colony Optimization (BCO), inspired by bee behavior in nature, is incorporated in the proposed approach. To solve the multicriteria optimization problem an interactive algorithm is used. The proposed approach is tested on an appropriate numerical example. Results show that by worsening vehicle delays, pedestrian delays can be improved, particularly under phase plans with an exclusive pedestrian phase. Future research should consider the inclusion of the safety exposure of vehicles and pedestrians into the proposed methodology.
Journal: Transportation Planning and Technology
Pages: 139-159
Issue: 2
Volume: 44
Year: 2021
Month: 02
X-DOI: 10.1080/03081060.2020.1868083
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1868083
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Handle: RePEc:taf:transp:v:44:y:2021:i:2:p:139-159
Template-Type: ReDIF-Article 1.0
Author-Name: Riccardo Ceccato
Author-X-Name-First: Riccardo
Author-X-Name-Last: Ceccato
Author-Name: Andrea Chicco
Author-X-Name-First: Andrea
Author-X-Name-Last: Chicco
Author-Name: Marco Diana
Author-X-Name-First: Marco
Author-X-Name-Last: Diana
Title: Evaluating car-sharing switching rates from traditional transport means through logit models and Random Forest classifiers
Abstract:
Positive impacts of car-sharing, such as reductions in car ownership, congestion, vehicle-miles-traveled and greenhouse gas emissions, have been extensively analyzed. However, these benefits are not fully effective if car-sharing subtracts travel demand from existing sustainable modes. This paper evaluates substitution rates of car-sharing against private cars and public transport using a Random Forest classifier and Binomial Logit model. The models were calibrated and validated using a stated-preference travel survey and applied to a revealed-preference survey, both administered to a representative sample of the population living in Turin (Italy). Results of the two models show that the predictive power of both models is comparable, albeit the Logit model tends to estimate predictions with a higher reliability and the Random Forest model produces higher positive switches towards car-sharing. However, results from both models suggest that the substitution rate of private cars is, on average, almost five times that of public transport.
Journal: Transportation Planning and Technology
Pages: 160-175
Issue: 2
Volume: 44
Year: 2021
Month: 02
X-DOI: 10.1080/03081060.2020.1868084
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1868084
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Handle: RePEc:taf:transp:v:44:y:2021:i:2:p:160-175
Template-Type: ReDIF-Article 1.0
Author-Name: Shahin Shakibaei
Author-X-Name-First: Shahin
Author-X-Name-Last: Shakibaei
Author-Name: Pelin Alpkokin
Author-X-Name-First: Pelin
Author-X-Name-Last: Alpkokin
Author-Name: John A. Black
Author-X-Name-First: John A.
Author-X-Name-Last: Black
Title: A multi-objective optimisation model for train scheduling in an open-access railway market
Abstract:
Liberalised railway markets bring into play the economic interactions amongst three dominant interest groups: passengers as system users; public entities providing the track; and private firms operating the trains. Problems that arise are multi-criteria with multi-decision-makers who may be in conflict. Our approach to this problem is similar to that of a cooperative game-theoretic non-transferable utility (NTU) to reach Pareto optimal resolutions in which the aspirations of all players are taken into account. The data are collected from the Istanbul-Ankara high-speed railway via a stated preference survey. A multi-agent system (MAS) is developed via GOLang, a programming language where the agents negotiate and interact with others based on a set of parameters such as ticket price setting and resource allocation. The results show better timetabling for trains and how to achieve higher compensation rates for the infrastructure provider by collecting higher amounts of track access charges from an optimised allocation of resources.
Journal: Transportation Planning and Technology
Pages: 176-193
Issue: 2
Volume: 44
Year: 2021
Month: 02
X-DOI: 10.1080/03081060.2020.1868085
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1868085
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Handle: RePEc:taf:transp:v:44:y:2021:i:2:p:176-193
Template-Type: ReDIF-Article 1.0
Author-Name: Myungseob (Edward) Kim
Author-X-Name-First: Myungseob (Edward)
Author-X-Name-Last: Kim
Author-Name: Austin Roche
Author-X-Name-First: Austin
Author-X-Name-Last: Roche
Title: Optimal service zone and headways for flexible-route bus services for multiple periods
Abstract:
Where private ridesharing companies such as Uber and Lyft are transforming the transit sector by making flexible transit cheaper and more readily available than ever before, it may be beneficial for public transportation agencies to adapt to the changing marketplace and provide flexible bus services in low to mid-demand density areas such as suburban or rural areas. This paper proposes an optimization model in which the service area for the flexible bus operations is jointly optimized with headways with time-dependent demand densities. The closed-form solution that minimizes the average costs of user and operator is obtained with analytic optimization. The model presented in this paper may be a helpful planning resource to determine the feasibility of flexible bus services where fixed-route transit operation is not desirable due to the lack of ridership, especially in suburban and rural regions. Numerical case studies and sensitivity analyses for critical operation factors are presented.
Journal: Transportation Planning and Technology
Pages: 194-207
Issue: 2
Volume: 44
Year: 2021
Month: 02
X-DOI: 10.1080/03081060.2020.1868086
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1868086
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Handle: RePEc:taf:transp:v:44:y:2021:i:2:p:194-207
Template-Type: ReDIF-Article 1.0
Author-Name: Hamed Faroqi
Author-X-Name-First: Hamed
Author-X-Name-Last: Faroqi
Author-Name: Rolf Moeckel
Author-X-Name-First: Rolf
Author-X-Name-Last: Moeckel
Author-Name: Mahmoud Mesbah
Author-X-Name-First: Mahmoud
Author-X-Name-Last: Mesbah
Title: Temporal distribution of sociodemographic characteristics at transit stops
Abstract:
This paper proposes a method to impute the distribution of trip purposes and sociodemographic characteristics of passengers at public transit stops. Firstly, the probability of performing different types of activities around transit stops is calculated considering available land use types, distance to stops, and size of related facilities. Secondly, the temporal distribution of sociodemographic and trip purpose types of passengers in the whole network over time slots is extracted. Thirdly, the extracted temporal distribution is allocated to the location of stops based on available land use types around the stops. A household travel survey dataset from South East Queensland is chosen for the case study. The proposed method could extract valuable information for public transit authorities from spatially poor travel survey datasets and transform those datasets into a new source of information for planning and running novel applications in the public transit network.
Journal: Transportation Planning and Technology
Pages: 208-221
Issue: 2
Volume: 44
Year: 2021
Month: 02
X-DOI: 10.1080/03081060.2020.1868087
File-URL: http://hdl.handle.net/10.1080/03081060.2020.1868087
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Handle: RePEc:taf:transp:v:44:y:2021:i:2:p:208-221
Template-Type: ReDIF-Article 1.0
Author-Name: Eric Petersen
Author-X-Name-First: Eric
Author-X-Name-Last: Petersen
Author-Name: Matthias Sweet
Author-X-Name-First: Matthias
Author-X-Name-Last: Sweet
Title: Navigating a fad or the future? Opportunities and limitations in integrating carshare membership and automated vehicle propensity in travel demand forecasting
Abstract:
New mobility services, including carsharing and automated vehicles (AVs), are changing mobility. Gathering evidence on the prospective adoption and uncertainty surrounding new technologies is critical, but technological changes outpace the speed with which planners can inform policy. This study demonstrates the feasibility of bridging planners’ programming and experimentation responsibilities in navigating uncertainty by developing forecasting tools which account for new technologies and fuse data from a large-scale Canadian household travel survey, the Transportation Tomorrow Survey (2016), with a one-time, internet-based survey with questions related to new mobility services. This study uses a fused nested logit model to explore the characteristics of consumers with propensities towards AV ownership and carshare membership in the Greater Toronto and Hamilton Area. Findings indicate joint effects of these two technologies. This approach of utilizing smaller-scale, issue-focused surveys in conjunction with traditional regional household travel surveys offers significant potential for planners to prepare more nimbly for uncertainty.
Journal: Transportation Planning and Technology
Pages: 223-245
Issue: 3
Volume: 44
Year: 2021
Month: 04
X-DOI: 10.1080/03081060.2021.1883225
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1883225
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Handle: RePEc:taf:transp:v:44:y:2021:i:3:p:223-245
Template-Type: ReDIF-Article 1.0
Author-Name: Lizet Krabbenborg
Author-X-Name-First: Lizet
Author-X-Name-Last: Krabbenborg
Author-Name: Eric Molin
Author-X-Name-First: Eric
Author-X-Name-Last: Molin
Author-Name: Jan Anne Annema
Author-X-Name-First: Jan Anne
Author-X-Name-Last: Annema
Author-Name: Bert van Wee
Author-X-Name-First: Bert
Author-X-Name-Last: van Wee
Title: Exploring the feasibility of tradable credits for congestion management
Abstract:
Tradable credits for congestion management are a novel policy concept that is receiving increased interest in transportation research. This interest is mainly driven by the belief that the concept can count on stronger social support and hence has a better prospect for implementation than charging-based instruments. This paper is the first to provide an analysis of the social, political, economic and technical feasibility of this concept. To this end, policymakers and researchers from the field of transport have been interviewed. The results reveal so many barriers and challenges in the social and political context that some seem insurmountable, which exposes a difference with expectations formulated in the literature. We reflect on possible options to overcome or avoid barriers but conclude that the concept of tradable peak credits lies very far from the current way of thinking about road use and seems unable to compete with more established charging schemes.
Journal: Transportation Planning and Technology
Pages: 246-261
Issue: 3
Volume: 44
Year: 2021
Month: 04
X-DOI: 10.1080/03081060.2021.1883226
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1883226
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Handle: RePEc:taf:transp:v:44:y:2021:i:3:p:246-261
Template-Type: ReDIF-Article 1.0
Author-Name: Jelena Simicevic
Author-X-Name-First: Jelena
Author-X-Name-Last: Simicevic
Author-Name: Nada Milosavljevic
Author-X-Name-First: Nada
Author-X-Name-Last: Milosavljevic
Author-Name: Snezana Kaplanovic
Author-X-Name-First: Snezana
Author-X-Name-Last: Kaplanovic
Title: The impact of user sensitivity on parking price sustainability
Abstract:
Parking charges are considered to be a powerful tool for managing transport demand, as parking price is one of the most important factors impacting the travel decision-making process. This paper examines and quantifies the parking price impact on parking demand due to an increase in initial parking price as well as due to the real price decrease (inflation-adjusted) over time. Revealed preference data were collected for a parking garage located in central Belgrade at three different times: before the price increase, after the price increase and after a certain period of time had passed since the price was increased. The results confirm that parking price impacts demand. However, initial price changes have become less effective in managing demand over time. Although such a pattern is typical and expected, its quantification could be of great importance when defining parking prices and predicting impacts of new prices, as well as in determining the periodicity of price changes in order to maintain desired parking occupancy levels.
Journal: Transportation Planning and Technology
Pages: 262-272
Issue: 3
Volume: 44
Year: 2021
Month: 04
X-DOI: 10.1080/03081060.2021.1883227
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1883227
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Handle: RePEc:taf:transp:v:44:y:2021:i:3:p:262-272
Template-Type: ReDIF-Article 1.0
Author-Name: Pengjun Zhao
Author-X-Name-First: Pengjun
Author-X-Name-Last: Zhao
Author-Name: Peilin Li
Author-X-Name-First: Peilin
Author-X-Name-Last: Li
Title: Rethinking the determinants of vehicle kilometers traveled (VKT) in an auto-dependent city: transport policies, socioeconomic factors and the built environment
Abstract:
Past decades have seen a ‘peak car’ phenomenon which is indicated by a decline in vehicle kilometers traveled (VKT) in many countries. Although the determinants of VKT have been widely discussed, the theoretical arguments remain unresolved, particularly on the role of transport policies, socioeconomic factors and the built environment. This paper aims to contribute to new evidence for these arguments by examining an auto-dependent city, Wellington, New Zealand. A new bottom-up approach is applied to examine the VKT per capita in terms of its four decomposed main elements: trips (T), travel mode (V), travel distance (K), and car ownership (C) based on micro-level regressions. The results of the analysis show VKT per capita is significantly affected by parking supply, public transport quality and the built environment. These effects vary between trip type and population groups. Changing lifestyles are now major factors in the decrease of VKT.
Journal: Transportation Planning and Technology
Pages: 273-302
Issue: 3
Volume: 44
Year: 2021
Month: 04
X-DOI: 10.1080/03081060.2021.1883228
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1883228
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Handle: RePEc:taf:transp:v:44:y:2021:i:3:p:273-302
Template-Type: ReDIF-Article 1.0
Author-Name: Seungil Yum
Author-X-Name-First: Seungil
Author-X-Name-Last: Yum
Title: Differences between telecommuters and commuters: the case of the Twin Cities metropolitan area
Abstract:
This study highlights how telecommuting plays an important role in travel time, travel distance, and travel mode choices in the Twin Cities metropolitan area of Minneapolis–Saint Paul by considering a multitude of travel modes, neighborhood characteristics, and travel purposes. First, this study finds that travel purposes differentiate the distribution of departure time between telecommuters and commuters. They show the biggest gap for the purpose of school and the smallest gap for other purposes. Second, telecommuters show a positive coefficient for the time model in the purpose of work and a negative coefficient for the distance model in the purpose of shopping. Third, this study finds that telecommuters do not prefer solo driving for all purposes. Instead, telecommuters are more likely to walk/bike in many cases (the purpose of work, leisure, home, and others). Also, they prefer a household carpool for the purpose of leisure and home, an inter-household carpool for the purpose of home, and public transit for the purpose of work and home. The findings highlight that governments and scholars should develop telecommuting planning according to a multitude of travel modes, neighborhood characteristics, and purposes.
Journal: Transportation Planning and Technology
Pages: 303-318
Issue: 3
Volume: 44
Year: 2021
Month: 04
X-DOI: 10.1080/03081060.2021.1883229
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1883229
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Handle: RePEc:taf:transp:v:44:y:2021:i:3:p:303-318
Template-Type: ReDIF-Article 1.0
Author-Name: Youngmin Choi
Author-X-Name-First: Youngmin
Author-X-Name-Last: Choi
Author-Name: Paul M. Schonfeld
Author-X-Name-First: Paul M.
Author-X-Name-Last: Schonfeld
Title: A comparison of optimized deliveries by drone and truck
Abstract:
This paper formulates and compares four alternatives of package delivery service with and without the aid of drones: (i) conventional truck, (ii) drone supported by truck, (iii) one-to-one delivery by drone, and (iv) one-to-many delivery by drone. Each delivery alternative is optimized numerically with an objective of total cost minimization (i.e. the sum of user’s and operator’s costs). For analyzing the delivery systems, the authors employ their recently developed distance approximation methods that estimate average tour lengths when only a few points are visited points, due to limited drone loading capacity. Analyses are conducted with respect to sensitivity to driver pay rate, demand density, user value of waiting time for delivery, drone operating speed, service area size, drone size, and distribution hub location. For reasonable baseline inputs, results indicate that using drones for package deliveries may be cost-effective compared to using conventional trucks.
Journal: Transportation Planning and Technology
Pages: 319-336
Issue: 3
Volume: 44
Year: 2021
Month: 04
X-DOI: 10.1080/03081060.2021.1883230
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1883230
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Handle: RePEc:taf:transp:v:44:y:2021:i:3:p:319-336
Template-Type: ReDIF-Article 1.0
Author-Name: Kate (Kyung) Hyun
Author-X-Name-First: Kate (Kyung)
Author-X-Name-Last: Hyun
Author-Name: Farah Naz
Author-X-Name-First: Farah
Author-X-Name-Last: Naz
Author-Name: Courtney Cronley
Author-X-Name-First: Courtney
Author-X-Name-Last: Cronley
Author-Name: Sarah Leat
Author-X-Name-First: Sarah
Author-X-Name-Last: Leat
Title: User characteristics of shared-mobility: a comparative analysis of car-sharing and ride-hailing services
Abstract:
Over the past 20 years, shared-mobility services have become important transportation options, as they provide on-demand, door-to-door mobility without requiring vehicle ownership. Although low-income communities may benefit especially from the services due to their lower vehicle ownership and high dependency on public transit, scant research has been conducted exploring how frequently these individuals utilize the shared-mobility programmes. This study develops a mathematical model based on Zero Inflated Negative Binomial Regression to understand the effects of individuals’ sociodemographic characteristics, financial status, and travel behaviours on car-sharing and ride-hailing usage. The model outcomes indicate that the individuals experiencing financial burden are more likely to use car-sharing services while those with a higher income tend to use ride-hailing. Ride-hailing tends to serve those who have lower miles driven or those who use public transit. Results show that car-sharing and ride-hailing could provide create synergetic impacts to attract more riders to the shared-mobility services.
Journal: Transportation Planning and Technology
Pages: 436-447
Issue: 4
Volume: 44
Year: 2021
Month: 05
X-DOI: 10.1080/03081060.2021.1919351
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1919351
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Handle: RePEc:taf:transp:v:44:y:2021:i:4:p:436-447
Template-Type: ReDIF-Article 1.0
Author-Name: Shaila Jamal
Author-X-Name-First: Shaila
Author-X-Name-Last: Jamal
Author-Name: K. Bruce Newbold
Author-X-Name-First: K.
Author-X-Name-Last: Bruce Newbold
Author-Name: Muhammad Ahsanul Habib
Author-X-Name-First: Muhammad Ahsanul
Author-X-Name-Last: Habib
Title: Does the use of smartphones affect discretionary trips? An analysis of smartphone use data from Halifax, Nova Scotia
Abstract:
This paper explores the impact of smartphone apps on discretionary travel by utilizing a survey of smartphone users in the Canadian city of Halifax, Nova Scotia. Both subjective and objective measures of discretionary trips are analyzed. A number of attributes such as smartphone use for different purposes, individuals’ perceptions and attitudes towards smartphone use and travel, and built environment measures are examined along with socio-demographic characteristics. Overall, results suggest that greater use of smartphone apps increases the number of discretionary trips. Perceptions and attitudes toward app use and travel also affect the number of discretionary trips. The results suggest that those who agreed that smartphone use has improved their daily life are more likely to make fewer social, shopping, and entertainment-related trips. The impact of socio-demographic and built environment attributes is low compared to the other variables considered in the analysis.
Journal: Transportation Planning and Technology
Pages: 418-435
Issue: 4
Volume: 44
Year: 2021
Month: 05
X-DOI: 10.1080/03081060.2021.1919350
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1919350
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Handle: RePEc:taf:transp:v:44:y:2021:i:4:p:418-435
Template-Type: ReDIF-Article 1.0
Author-Name: J. L’Ortye
Author-X-Name-First: J.
Author-X-Name-Last: L’Ortye
Author-Name: M. Mitici
Author-X-Name-First: M.
Author-X-Name-Last: Mitici
Author-Name: H.G. Visser
Author-X-Name-First: H.G.
Author-X-Name-Last: Visser
Title: Robust flight-to-gate assignment with landside capacity constraints
Abstract:
At the interface between airport airside and landside operations, the assignment of flights to gates is key to ensure efficient operations and a high quality of service for passengers. We propose a mixed-integer linear program for an integrated flight-to-gate assignment that considers both airside as well as landside constraints on the capabilities of facilities such as check-in, security or transfer to handle passengers. Moreover, our assignment is robust in that it constrains the probability of multiple flights being assigned to the same gate. Having obtained an integrated, robust flight-to-gate assignment, we analyse the associated quality of service at the landside facilities. Overall, our model supports the design of a robust, integrated airside-landside assignment of flights to gates at an airport.
Journal: Transportation Planning and Technology
Pages: 356-377
Issue: 4
Volume: 44
Year: 2021
Month: 05
X-DOI: 10.1080/03081060.2021.1919347
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1919347
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Handle: RePEc:taf:transp:v:44:y:2021:i:4:p:356-377
Template-Type: ReDIF-Article 1.0
Author-Name: Tae Hyun Kim
Author-X-Name-First: Tae Hyun
Author-X-Name-Last: Kim
Author-Name: Cheng-Lung Wu
Author-X-Name-First: Cheng-Lung
Author-X-Name-Last: Wu
Title: Methodology for defining the new optimum level of service in airport passenger terminals
Abstract:
This paper proposes a methodology based on agent-based simulation to define the new optimum airport level-of-service (LOS) that guides cost-efficient terminal design while providing passengers with a reasonable LOS. It aims to allow at least 50% of passengers to experience the new optimum LOS range while cutting off LOS values during peak and off-peak periods. The simulation also helps to adopt the standard cut-off combination and test the applicability of the methodology. The test reveals that the proposed methodology is useful for establishing an alternative LOS standard that is more cost-efficient and flexible than the conventional IATA standard and could be applicable for other public transport terminals.
Journal: Transportation Planning and Technology
Pages: 378-399
Issue: 4
Volume: 44
Year: 2021
Month: 05
X-DOI: 10.1080/03081060.2021.1919348
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1919348
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Handle: RePEc:taf:transp:v:44:y:2021:i:4:p:378-399
Template-Type: ReDIF-Article 1.0
Author-Name: Maria Nordström
Author-X-Name-First: Maria
Author-X-Name-Last: Nordström
Author-Name: Albin Engholm
Author-X-Name-First: Albin
Author-X-Name-Last: Engholm
Title: The complexity of value of travel time for self-driving vehicles – a morphological analysis
Abstract:
Understanding the value of travel time for mobility concepts based on self-driving vehicles is crucial to accurately value transport investments and predict future travel patterns. In this paper, we carry out a morphological analysis to illustrate the diversity of mobility concepts based on self-driving vehicles and the complexity of determining the value of travel time for such concepts. We consider four categories of parameters that directly or indirectly impact the value of travel time: (i) vehicle characteristics, (ii) operating principles, (iii) journey characteristics and (iv) traveler characteristics. The parameters and respective attributes result in a morphological matrix that spans all possible solutions. Out of these, we analyze five plausible solutions based on the implications of the concept characteristics on the total value of travel time. We conclude by suggesting an alternative approach to differentiate value of travel time based on travel characteristics rather than the usual decomposition into transport modes.
Journal: Transportation Planning and Technology
Pages: 400-417
Issue: 4
Volume: 44
Year: 2021
Month: 05
X-DOI: 10.1080/03081060.2021.1919349
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1919349
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Handle: RePEc:taf:transp:v:44:y:2021:i:4:p:400-417
Template-Type: ReDIF-Article 1.0
Author-Name: Rasoul Sanaei
Author-X-Name-First: Rasoul
Author-X-Name-Last: Sanaei
Author-Name: Alexander Lau
Author-X-Name-First: Alexander
Author-X-Name-Last: Lau
Author-Name: Volker Gollnick
Author-X-Name-First: Volker
Author-X-Name-Last: Gollnick
Title: A study of capacity regulations to define European air traffic management network states
Abstract:
The European Air Traffic Management Network is unique in its complexity due to numerous stakeholders, airspace configurations and accommodated traffic volumes. Such complexity challenges both tactical visibility and network resiliency in general. Therefore, we review different perspectives of resiliency and robustness to explore advantages of performance variability in understanding network states. The methodology is based on capturing emergent disruptions as drivers of performance variability. We claim that capacity regulations reveal restorative mechanisms for tactical planning. Consequently, we conduct statistical evaluations to provide quantitative measures for network state definitions. The methodology is even able to distinguish non-nominal disruptions to either crisis or critical states. The proposed approach is then demonstrated by a data sample covering six months. Furthermore, to assess the severity of non-nominal states, we estimate probability distributions for different regulation types. The study is concluded by addressing long-term network resiliency based on estimated probability distributions.
Journal: Transportation Planning and Technology
Pages: 337-355
Issue: 4
Volume: 44
Year: 2021
Month: 05
X-DOI: 10.1080/03081060.2021.1919346
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1919346
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Handle: RePEc:taf:transp:v:44:y:2021:i:4:p:337-355
Template-Type: ReDIF-Article 1.0
Author-Name: Jihye Kim
Author-X-Name-First: Jihye
Author-X-Name-Last: Kim
Author-Name: Ikki Kim
Author-X-Name-First: Ikki
Author-X-Name-Last: Kim
Author-Name: Jaeyeob Shim
Author-X-Name-First: Jaeyeob
Author-X-Name-Last: Shim
Title: Calibration and validation of person-based trip production models of optional trip purposes
Abstract:
Trip generation models are typically calibrated using zone-based aggregated data, despite some theoretical drawbacks pertaining to the use of aggregated data. This study demonstrates that models calibrated with disaggregated data not only have a better theoretical basis, but also forecast more accurate trip productions. In particular, optional trip purposes are focused on the calibration of trip production models, of which trips tend to be irregularly generated, rendering it difficult to build more reliable models. There are three models calibrated: an aggregate model with zone-level data, a disaggregate model with household-level data, and with household and person-level data using household survey data for two years. The prediction accuracy and stability of the models are compared and verified using statistical methods. It is discovered that calibrating a trip production model using household and person-level data jointly yields a better calibration method.
Journal: Transportation Planning and Technology
Pages: 470-486
Issue: 5
Volume: 44
Year: 2021
Month: 07
X-DOI: 10.1080/03081060.2021.1927302
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1927302
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Handle: RePEc:taf:transp:v:44:y:2021:i:5:p:470-486
Template-Type: ReDIF-Article 1.0
Author-Name: Cláudia Ferreira
Author-X-Name-First: Cláudia
Author-X-Name-Last: Ferreira
Author-Name: Luís Canhoto Neves
Author-X-Name-First: Luís Canhoto
Author-X-Name-Last: Neves
Title: Macro modelling of traffic flow using continuous timed Petri nets
Abstract:
In this paper, continuous timed Petri nets (CTPN) are used to develop a hybrid traffic model, where the network is modelled as a macroscopic model and calibrated by microscopic models. The concept of CTPN is used to build a modular model, where first the highway traffic system is decomposed into several systems, based on structural entities (highway segment, on- and off-ramp links), which are coalesced into a complete model. The result is a light, versatile and easily scalable stochastic model for traffic flow. The calibration and validation of the traffic model is performed through the comparison of basic traffic parameters (flow rate, density, and mean speed) obtained through the traffic model implemented and the commercial micro-modelling software, Aimsun, for part of Portugal’s highway network. The results show that the proposed methodology results in a good trade-off between accuracy, simplicity, and computational cost.
Journal: Transportation Planning and Technology
Pages: 503-523
Issue: 5
Volume: 44
Year: 2021
Month: 07
X-DOI: 10.1080/03081060.2021.1927304
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1927304
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Handle: RePEc:taf:transp:v:44:y:2021:i:5:p:503-523
Template-Type: ReDIF-Article 1.0
Author-Name: Majbah Uddin
Author-X-Name-First: Majbah
Author-X-Name-Last: Uddin
Author-Name: Sabreena Anowar
Author-X-Name-First: Sabreena
Author-X-Name-Last: Anowar
Author-Name: Naveen Eluru
Author-X-Name-First: Naveen
Author-X-Name-Last: Eluru
Title: Modeling freight mode choice using machine learning classifiers: a comparative study using Commodity Flow Survey (CFS) data
Abstract:
This study explores the usefulness of machine learning classifiers for modeling freight mode choice. We investigate eight commonly used machine learning classifiers, namely Naïve Bayes, Support Vector Machine, Artificial Neural Network, K-Nearest Neighbors, Classification and Regression Tree, Random Forest, Boosting and Bagging, along with the classical Multinomial Logit model. US 2012 Commodity Flow Survey data are used as the primary data source; we augment it with spatial attributes from secondary data sources. The performance of the classifiers is compared based on prediction accuracy results. The current research also examines the role of sample size and training-testing data split ratios on the predictive ability of the various approaches. In addition, the importance of variables is estimated to determine how the variables influence freight mode choice. The results show that the tree-based ensemble classifiers perform the best. Specifically, Random Forest produces the most accurate predictions, closely followed by Boosting and Bagging. With regard to variable importance, shipment characteristics, such as shipment distance, industry classification of the shipper and shipment size, are the most significant factors for freight mode choice decisions.
Journal: Transportation Planning and Technology
Pages: 543-559
Issue: 5
Volume: 44
Year: 2021
Month: 07
X-DOI: 10.1080/03081060.2021.1927306
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1927306
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Handle: RePEc:taf:transp:v:44:y:2021:i:5:p:543-559
Template-Type: ReDIF-Article 1.0
Author-Name: Brittany Chung
Author-X-Name-First: Brittany
Author-X-Name-Last: Chung
Author-Name: Siva Srikukenthiran
Author-X-Name-First: Siva
Author-X-Name-Last: Srikukenthiran
Author-Name: Eric J. Miller
Author-X-Name-First: Eric J.
Author-X-Name-Last: Miller
Author-Name: Khandker Nurul Habib
Author-X-Name-First: Khandker
Author-X-Name-Last: Nurul Habib
Title: An inductive experimental approach to developing a web-based travel survey builder: developing guidelines to design an efficient web-survey platform
Abstract:
The household travel survey (HTS) is the most widely used passenger travel data collection method, and web-based HTS is currently the most dominant survey mode. However, there is a lack of proper understanding on how much the web-based approach can be used without over-burdening respondents. This study investigates methods to improve web-based HTS data quality and to reduce response burdens. It presents the lessons learned from the development and field experiment of a web survey builder. A particular focus is on designing and testing a trip diary interface through usability tests. These tests include a mouse-movement tracking study, mock web-based HTS experiments with responsive designs, and the use of a route planner application programming interface (API). Results show that creating responsive designs for web-surveys based on screen size can significantly increase completion rates and improve the usability. Collecting detailed routes with a route planner API suggesting most likely routes does not significantly increase respondent fatigue. However, it significantly improves data quality. Household size and the age of the survey respondent are significant contributing factors to survey drop-off rates and respondent fatigue. The paper contributes to the literature on household travel surveys by providing evidence-based design guidelines for web-survey interfaces.
Journal: Transportation Planning and Technology
Pages: 487-502
Issue: 5
Volume: 44
Year: 2021
Month: 07
X-DOI: 10.1080/03081060.2021.1927303
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1927303
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Handle: RePEc:taf:transp:v:44:y:2021:i:5:p:487-502
Template-Type: ReDIF-Article 1.0
Author-Name: Weining Hao
Author-X-Name-First: Weining
Author-X-Name-Last: Hao
Author-Name: Haiying Li
Author-X-Name-First: Haiying
Author-X-Name-Last: Li
Author-Name: Lingyun Meng
Author-X-Name-First: Lingyun
Author-X-Name-Last: Meng
Author-Name: Jianrui Miao
Author-X-Name-First: Jianrui
Author-X-Name-Last: Miao
Title: A virtual resource-based method for formulating the safety headway of opposing trains arriving at the same station on a single-track railway line
Abstract:
In train rescheduling, the arrival and departure times of trains at stations are normally constrained by many operations rules that must be respected. Therefore, different methods were proposed to describe train operations for preventing train conflicts, especially concerning the safety headways. This paper develops a virtual resource-based method in place of the commonly used big-M method and ‘either-or’ constraints for reformulating the safety headway of opposing trains arriving at the same station on a single-track rail. This new formulation can provide an efficient decomposition mechanism by decomposing the original complex problem into several single train-based subproblems. A resource-oriented mixed-integer linear programming model based on a time-space network is developed to minimize the total train delay time with cumulative flow variables used to describe time-space resources occupation. We also present a set of numerical experiments based on a single-track railway line in China to evaluate the validity of the proposed method.
Journal: Transportation Planning and Technology
Pages: 524-542
Issue: 5
Volume: 44
Year: 2021
Month: 07
X-DOI: 10.1080/03081060.2021.1927305
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1927305
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Handle: RePEc:taf:transp:v:44:y:2021:i:5:p:524-542
Template-Type: ReDIF-Article 1.0
Author-Name: Yu Song
Author-X-Name-First: Yu
Author-X-Name-Last: Song
Author-Name: Madhav V. Chitturi
Author-X-Name-First: Madhav V.
Author-X-Name-Last: Chitturi
Author-Name: Chris McCahill
Author-X-Name-First: Chris
Author-X-Name-Last: McCahill
Author-Name: David A. Noyce
Author-X-Name-First: David A.
Author-X-Name-Last: Noyce
Title: People’s attitudes toward automated vehicle and transit integration: case study of small urban areas
Abstract:
Previous surveys of people’s attitudes toward automated vehicles (AVs) and transit integration have primarily taken place in large urban areas. AV-transit integration also has a great potential in small urban areas. This paper is based on a survey of people’s attitudes towards AV-transit integration carried out in two small urban areas in the US State of Wisconsin. A total of 266 finished responses were analyzed using text mining, factor analysis, and regression analysis. Results show that respondents know about AVs and driving assistance technologies and welcome AV-transit integration but are unsure about its potential impacts. Technology-savvy respondents were more positive but had more concerns about AV-transit integration than others. Respondents who enjoyed driving were not necessarily against transit, as they were more positive about AV-transit integration and were more willing to use automated buses than those who did not enjoy driving as much. Transit users were more positive toward AV-transit integration than non-transit users.
Journal: Transportation Planning and Technology
Pages: 449-469
Issue: 5
Volume: 44
Year: 2021
Month: 07
X-DOI: 10.1080/03081060.2021.1927301
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1927301
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Handle: RePEc:taf:transp:v:44:y:2021:i:5:p:449-469
Template-Type: ReDIF-Article 1.0
Author-Name: Shaojie Liu
Author-X-Name-First: Shaojie
Author-X-Name-Last: Liu
Author-Name: Wei (David) Fan
Author-X-Name-First: Wei (David)
Author-X-Name-Last: Fan
Title: Investigating the operational performance of connected and autonomous vehicles on signalized superstreets
Abstract:
With the development of artificial intelligence and wireless communication technology, connected and autonomous vehicles (CAVs) have been treated as a promising strategy to increase road capacity and mitigate traffic congestion. Besides the technology of CAVs, innovative intersection design was also originally introduced as a countermeasure for dealing with traffic congestion at intersections. Though many studies have been conducted to explore the benefits of CAVs under various transportation scenarios, few have been implemented to explore the impact of CAVs on traffic flow at innovative intersections. Hence, to achieve a better understanding of the impacts of CAVs on existing transportation infrastructure, this study conducts a simulation-based study to investigate the operational performance of CAVs with available Signal Phase and Timing (SPaT) information in the environment of typical innovative intersection design, i.e. superstreets. The impact of CAVs with different market penetration rates on the operational performance of a superstreet is identified. The operational performance of the superstreet increases as the market penetration rate increases overall. Average speed and average traffic delay for vehicles in the superstreet system can be improved with the increase of market penetration rates.
Journal: Transportation Planning and Technology
Pages: 594-607
Issue: 6
Volume: 44
Year: 2021
Month: 08
X-DOI: 10.1080/03081060.2021.1943130
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1943130
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Handle: RePEc:taf:transp:v:44:y:2021:i:6:p:594-607
Template-Type: ReDIF-Article 1.0
Author-Name: Mirko Goletz
Author-X-Name-First: Mirko
Author-X-Name-Last: Goletz
Author-Name: Francisco J. Bahamonde-Birke
Author-X-Name-First: Francisco J.
Author-X-Name-Last: Bahamonde-Birke
Title: The ride-sourcing industry: status-quo and outlook
Abstract:
Ride-sourcing, the use of private cars to provide on-demand mobility services, first appeared in San Francisco around the year 2010. Since then, transportation network companies (TNCs) who offer ride-sourcing services have expanded all around the world. By examining three case cities (San Francisco, Mexico City, Paris) we explain what facilitated this growth and how the regulation of TNCs differs. Subsequently, an economic analysis discusses the current expansionary strategy of TNCs and their future. We show that TNCs adapt their strategies to local contexts, with first priority to establish themselves in the market, if necessary, using gray regulatory areas, even if they face resistance from city authorities, taxi drivers and other groups, and despite being unprofitable. Our economic model explains this. We show that an unregulated ride-sourcing market leads to monopolistic situations once autonomous vehicles become available. We hence conclude that city authorities need to develop a regulatory framework to maximize social welfare.
Journal: Transportation Planning and Technology
Pages: 561-576
Issue: 6
Volume: 44
Year: 2021
Month: 08
X-DOI: 10.1080/03081060.2021.1943128
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1943128
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Handle: RePEc:taf:transp:v:44:y:2021:i:6:p:561-576
Template-Type: ReDIF-Article 1.0
Author-Name: Milan Janić
Author-X-Name-First: Milan
Author-X-Name-Last: Janić
Title: An approach to analysing and modelling the reliability of transport services
Abstract:
A transport system is planned and operated to provide safe, efficient, effective, social and environmentally friendly services to its users – passengers and freight/cargo shippers. These service attributes have also become increasingly important for supporting the future development of contemporary society. At the same time, the system and its modes has been frequently affected by different internal and external disruptive events, usually resulting in the deterioration of the planned performance of transport services. To successfully cope with such conditions, the transport system must be sufficiently reliable, that is, resistant to damage or capable of providing services with a level of performance as close as planned while being affected at the same time. This paper deals with an approach to analysing and modelling the reliability of transport services. This includes elaboration of a concept of reliability, development of analytical models for reliability indicators, and application of these models of indicators to selected cases of road and rail transport services.
Journal: Transportation Planning and Technology
Pages: 647-678
Issue: 6
Volume: 44
Year: 2021
Month: 08
X-DOI: 10.1080/03081060.2021.1943133
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1943133
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Handle: RePEc:taf:transp:v:44:y:2021:i:6:p:647-678
Template-Type: ReDIF-Article 1.0
Author-Name: Li Song
Author-X-Name-First: Li
Author-X-Name-Last: Song
Author-Name: Wei (David) Fan
Author-X-Name-First: Wei (David)
Author-X-Name-Last: Fan
Author-Name: Pengfei Liu
Author-X-Name-First: Pengfei
Author-X-Name-Last: Liu
Title: Exploring the effects of connected and automated vehicles at fixed and actuated signalized intersections with different market penetration rates
Abstract:
To investigate the effects of different market penetration rates (MPRs) of intelligent vehicles – Intelligent Driving Model (IDM) for autonomous vehicles (AVs), Adaptive Cruise Control (ACC) for AVs, and Cooperative Adaptive Cruise Control (CACC) for connected and automated vehicles (CAVs) – in mixed traffic flows with human driving vehicles (HDVs) at intersections, three signalized intersections (fixed signal, gap-based actuated signal, and delay-based actuated signal-controlled intersections) with low, medium, and high traffic demands are investigated. The simulation results indicate that CAVs with the CACC system outperform AVs with ACC or IDM systems and could reduce the average delay under low and high demand scenarios by 49% to 96%. CAVs with the CACC system could also significantly reduce average delay with a 20% MPR, while significant drops could only be observed after 60% and 80% MPRs for AVs with the ACC/IDM system. Gap-based and delay-based actuated signal control schemes are preferred under medium traffic flow demand, and CACC/ACC systems could significantly improve the performance of actuated signal-controlled intersections under high traffic flow demand.
Journal: Transportation Planning and Technology
Pages: 577-593
Issue: 6
Volume: 44
Year: 2021
Month: 08
X-DOI: 10.1080/03081060.2021.1943129
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1943129
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Handle: RePEc:taf:transp:v:44:y:2021:i:6:p:577-593
Template-Type: ReDIF-Article 1.0
Author-Name: Ruth Murrugarra
Author-X-Name-First: Ruth
Author-X-Name-Last: Murrugarra
Author-Name: William Wallace
Author-X-Name-First: William
Author-X-Name-Last: Wallace
Author-Name: Wilfredo Yushimito
Author-X-Name-First: Wilfredo
Author-X-Name-Last: Yushimito
Title: The effect of consistency in estimating link travel times: A data fusion approach
Abstract:
Although attention to data fusion has undergone rapid growth since the late 1980s, there are still relatively few applications in transportation management. Most research has based fusion weight estimation on the variance of each data source, assigning high weights to low variance data, implying that low variance means high accuracy. We propose a data fusion methodology where weights are assigned in a way data variance and sensor bias are minimized, but also consistency among data sources is maximized. The proposed methodology is flexible to work with multiple data sources, with different reliability and variability, and under different traffic conditions. The inclusion of consistency is shown to be statistically significant during special events and incidents and demonstrates its validity in successfully representing changes in traffic patterns by reasonably estimating their magnitude. Results from a case study that validate this method are shown.
Journal: Transportation Planning and Technology
Pages: 608-628
Issue: 6
Volume: 44
Year: 2021
Month: 08
X-DOI: 10.1080/03081060.2021.1943131
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1943131
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Handle: RePEc:taf:transp:v:44:y:2021:i:6:p:608-628
Template-Type: ReDIF-Article 1.0
Author-Name: Junze Wang
Author-X-Name-First: Junze
Author-X-Name-Last: Wang
Author-Name: Sheng Zhao
Author-X-Name-First: Sheng
Author-X-Name-Last: Zhao
Author-Name: Wei Zhang
Author-X-Name-First: Wei
Author-X-Name-Last: Zhang
Author-Name: Richard Evans
Author-X-Name-First: Richard
Author-X-Name-Last: Evans
Title: Why people adopt smart transportation services: an integrated model of TAM, trust and perceived risk
Abstract:
Advancements in emerging technologies have brought remarkable socio-technical changes to how people communicate, Smart transportation and urban mobility have become high priority topics for city planners and policymakers as cities seek to become more desirable to citizens. However, few empirical studies have critically examined factors that affect user acceptance of Smart Transportation Services (STS) and their impact. Grounded in perceived risk and trust theory, and the Technology Acceptance Model (TAM), this paper examines the impact of users’ antecedents on the acceptance of smart transportation services. We use structural equation modeling to conduct an empirical analysis of questionnaire data collected from a sample of users in China. Results show that trust and reducing perceived security risk and perceived privacy risk can enhance users’ trust in STS. Our findings provide important practical implications for governments and service providers for improving the acceptance rate of smart transportation services in China.
Journal: Transportation Planning and Technology
Pages: 629-646
Issue: 6
Volume: 44
Year: 2021
Month: 08
X-DOI: 10.1080/03081060.2021.1943132
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1943132
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Handle: RePEc:taf:transp:v:44:y:2021:i:6:p:629-646
Template-Type: ReDIF-Article 1.0
Author-Name: Jagat K. Shrestha
Author-X-Name-First: Jagat K.
Author-X-Name-Last: Shrestha
Author-Name: Pramesh Pudasaini
Author-X-Name-First: Pramesh
Author-X-Name-Last: Pudasaini
Author-Name: Lorenzo Mussone
Author-X-Name-First: Lorenzo
Author-X-Name-Last: Mussone
Title: Rural road network performance and pre-disaster planning: an assessment methodology considering redundancy
Abstract:
This paper introduces a new methodology to evaluate the performance of rural road networks when a link in the network is disrupted due to events such as natural disasters, accidents, and maintenance closures. As a measure of network resilience, we propose a simpler approach to quantify redundancy by introducing two indices that link the concept of road network redundancy with the increase in travel distance of the overall network when a road link fails. We apply the problem formulation to a real-world rural road network which was heavily affected by the 2015 Gorkha Earthquake in Nepal. Based on the results from our analyses, we found these indices easy to use, pragmatic, and reliable for the case under study. With the proposed tool, decision-makers can predict and monitor the performance of rural road networks for pre-disaster (or pre-disruption) planning, thereby ensuring the smooth connectivity for goods and services during emergencies.
Journal: Transportation Planning and Technology
Pages: 726-743
Issue: 7
Volume: 44
Year: 2021
Month: 10
X-DOI: 10.1080/03081060.2021.1956809
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1956809
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Handle: RePEc:taf:transp:v:44:y:2021:i:7:p:726-743
Template-Type: ReDIF-Article 1.0
Author-Name: Jie Feng
Author-X-Name-First: Jie
Author-X-Name-Last: Feng
Author-Name: Cheng-Lung Wu
Author-X-Name-First: Cheng-Lung
Author-X-Name-Last: Wu
Author-Name: Jinfu Zhu
Author-X-Name-First: Jinfu
Author-X-Name-Last: Zhu
Title: Exploring the effect of airport incentive programs: the practice of Narita International Airport
Abstract:
Incentive programs are widely used by airports as a marketing tool to attract new services. Empirical evidence regarding the effects of an isolated incentive program is yet to be explored. In this paper, we focus on airports located in Asia to detect the mechanisms, results and effects of the incentive program initiated by Narita International Airport, Japan. We present non-financial and financial indices to explore the effects of incentive schemes. For the non-financial aspect, the retention rate of new air services under incentives is explicitly defined and calculated. Regarding the financial impact, the costs and revenues and tourism revenues of flights under incentive schemes are calculated to estimate the incentive program’s financial and economic effects. The results demonstrate that the ‘2015RDP’ incentive program initiated by Narita International Airport has met its strategic goals and achieved success in attracting new services, as well as generating additional revenue for the airport and tourism industry.
Journal: Transportation Planning and Technology
Pages: 785-806
Issue: 7
Volume: 44
Year: 2021
Month: 10
X-DOI: 10.1080/03081060.2021.1956812
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1956812
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Handle: RePEc:taf:transp:v:44:y:2021:i:7:p:785-806
Template-Type: ReDIF-Article 1.0
Author-Name: Orva Stephen Agbe
Author-X-Name-First: Orva Stephen
Author-X-Name-Last: Agbe
Author-Name: Yasuhiro Shiomi
Author-X-Name-First: Yasuhiro
Author-X-Name-Last: Shiomi
Title: A feasibility study for mobility as a service in suburban areas
Abstract:
Mobility as a Service (MaaS) promises a competitive transportation alternative to the private car such that mobility services are combined as packages and offered to users on demand. As this new mobility concept gains attention globally, many cities are eager to try it. This is a feasibility study to understand users’ preferences, potential demand and willingness-to-pay (WTP) for MaaS in suburban areas. Data were collected from 560 residents and analyzed with their travel behavior and personal characteristics. A logistic regression model was used to account for the acceptability of MaaS, choice behavior and WTP predictors. The results show that over 60% of residents would not use MaaS; however, 30% agreed to use MaaS and are willing to pay for it. This indicates that there may be a market for MaaS in Shiga, the study area. This study provides insights into the implementation of MaaS and spurs further research.
Journal: Transportation Planning and Technology
Pages: 695-713
Issue: 7
Volume: 44
Year: 2021
Month: 10
X-DOI: 10.1080/03081060.2021.1956807
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1956807
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Handle: RePEc:taf:transp:v:44:y:2021:i:7:p:695-713
Template-Type: ReDIF-Article 1.0
Author-Name: Chandra Balijepalli
Author-X-Name-First: Chandra
Author-X-Name-Last: Balijepalli
Author-Name: Dennis Alima
Author-X-Name-First: Dennis
Author-X-Name-Last: Alima
Title: Understanding the influence of a downstream-side bus stop on saturation flows at an isolated junction
Abstract:
This research investigates how saturation flow is affected by bus stops and analyses whether the standard equation used in the UK is adequate for estimating the saturation flow of an approach, especially in the presence of a downstream-side bus stop. As part of the study, we undertook a survey of saturation flows at several junctions in the city of Leeds in England and seek to explain the factors affecting them, taking into account the bus stop located nearby. We develop bootstrapping regression models to explain the difference between the observed and estimated saturation flows and propose an extension to the standard model, accounting for the bus stop located nearby. Finally, this paper illustrates the methods developed and reports on how performance can be improved by reconfiguring a junction.
Journal: Transportation Planning and Technology
Pages: 760-784
Issue: 7
Volume: 44
Year: 2021
Month: 10
X-DOI: 10.1080/03081060.2021.1956811
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1956811
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Handle: RePEc:taf:transp:v:44:y:2021:i:7:p:760-784
Template-Type: ReDIF-Article 1.0
Author-Name: Ryan Terry
Author-X-Name-First: Ryan
Author-X-Name-Last: Terry
Author-Name: Mahmut Yasar
Author-X-Name-First: Mahmut
Author-X-Name-Last: Yasar
Author-Name: Jianling Li
Author-X-Name-First: Jianling
Author-X-Name-Last: Li
Title: Who benefits more? The heterogeneous impact of highways on employment growth
Abstract:
This paper explores the relationship between the stock of interstate highways on employment growth of counties in Texas between 1983 and 2012. Using the Chernozhukov-Hansen instrumental variables quantile regression (IVQR) method, we examine the heterogeneous impact that highways have on employment growth at different quantiles of the conditional distribution while at the same time controlling for potential endogeneity. The results show that the employment growth effect monotonically increases as one shifts from the lower tail to the upper tail of the distribution. The range is 0.15 to 0.44, with the highest at the 95th quantile, compared to 0.189 for OLS and 0.213 for 2SLS. A 10 percent increase in interstate highway kilometers in 1983 led to about a 1.5 to 4.4 percentage point increase in county employment over a 29-year period. Our results also indicate that the counties with low initial levels of employment grew faster than those with a high initial level of employment and that this convergence monotonically decreases from the lower tail to the upper tail of the growth distribution.
Journal: Transportation Planning and Technology
Pages: 744-759
Issue: 7
Volume: 44
Year: 2021
Month: 10
X-DOI: 10.1080/03081060.2021.1956810
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1956810
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Handle: RePEc:taf:transp:v:44:y:2021:i:7:p:744-759
Template-Type: ReDIF-Article 1.0
Author-Name: Pei-Chun Lin
Author-X-Name-First: Pei-Chun
Author-X-Name-Last: Lin
Author-Name: Chung-Wei Shen
Author-X-Name-First: Chung-Wei
Author-X-Name-Last: Shen
Author-Name: Jenhung Wang
Author-X-Name-First: Jenhung
Author-X-Name-Last: Wang
Title: The bus-type taxi: a better demonstration of ride-sharing than Uber Taiwan
Abstract:
This study addresses a capacitated vehicle routing problem with time windows and simultaneous pickup and delivery (VRPTWPD) for scheduling bus-type taxis formerly served by regular buses. The effects of varying the maximum number of passenger seats on service quality and costs are investigated. Taiwan's government has subsidized public transport in order to ensure consistency between service shifts and demands, improve the efficiency of public transport operations, and maintain an ongoing supply of services while reducing the number of scooters and/or private cars on roads to minimize traffic congestion. Ultimately, the intent is to reduce government subsidies further and maintain service quality at reasonable levels. Transit planners have also introduced the Demand Responsive Transit System (DRTS) to connect routes. Particularity in rural areas, local transit planners have replaced buses with taxis to form a bus-type taxi service that increases efficiency. As a consequence, the transit service in low-density or rural areas has not been abandoned. The study acknowledges that optimal routes for successful bus-type taxis services vary by area. Routing and scheduling results will assist route planners' efforts to provide sufficient transit services in rural areas. The study results also suggest that further reductions in government subsidies are possible.
Journal: Transportation Planning and Technology
Pages: 714-725
Issue: 7
Volume: 44
Year: 2021
Month: 10
X-DOI: 10.1080/03081060.2021.1956808
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1956808
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Handle: RePEc:taf:transp:v:44:y:2021:i:7:p:714-725
Template-Type: ReDIF-Article 1.0
Author-Name: Alexander Bigazzi
Author-X-Name-First: Alexander
Author-X-Name-Last: Bigazzi
Author-Name: Elmira Berjisian
Author-X-Name-First: Elmira
Author-X-Name-Last: Berjisian
Title: Modeling the impacts of electric bicycle purchase incentive program designs
Abstract:
Governments are interested in incentivizing e-bike adoption, due to potential benefits from displacing travel by private automobile. To inform the development of e-bike purchase incentive programs, the objective of this paper is to determine how key elements of program design (particularly rebate amounts and structure) are expected to affect new e-bike purchases. An aggregate demand model is developed and applied to rebate scenarios to examine incentive effectiveness. Results show that rebate programs are expected to be bound by available rebates, not e-bike demand, and additional bike shop revenues exceed rebate costs. At a fixed program budget, fewer, larger rebates yield fewer additional sales, but a larger share of rebates go to low-income and new (marginal) purchasers. Flat and proportional rebate structures yield similar sales, although flat rebates are more income-equitable. Flat rebates are recommended for new e-bike incentive programs, with robust program evaluations to inform future program designs.
Journal: Transportation Planning and Technology
Pages: 679-694
Issue: 7
Volume: 44
Year: 2021
Month: 10
X-DOI: 10.1080/03081060.2021.1956806
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1956806
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Handle: RePEc:taf:transp:v:44:y:2021:i:7:p:679-694
Template-Type: ReDIF-Article 1.0
Author-Name: Shakil Khan
Author-X-Name-First: Shakil
Author-X-Name-Last: Khan
Author-Name: Hanna Maoh
Author-X-Name-First: Hanna
Author-X-Name-Last: Maoh
Title: Battery electric vehicle acquisition timeframes in Canadian fleets
Abstract:
Investigating the acquisition timeframe of battery-electric vehicles (BEVs) could help identify the conditions needed to entice fleet operating entities (FOEs) to lean towards early fleet electrification. This paper addresses this issue by estimating ordered logit models with data collected from an online survey. The results suggest differences in the acquisition timeframes of government and corporate FOEs. In general, corporate FOEs tend to have a shorter acquisition timeframe. The significant factors for a shorter acquisition timeframe include the size and location of the FOEs, availability of on-site charging infrastructure, and existence of regulatory imperatives in fleet procurement. The propensity of a shorter acquisition timeframe for car fleets is higher for FOEs with an economically driven attitude. Similarly, the acquisition of utility fleets is shorter for government FOEs with economically driven attitudes and corporate FOEs with early adopter attitudes. Likewise, the acquisition of pickup truck fleets is shorter for corporate FOEs with obligatory attitudes.
Journal: Transportation Planning and Technology
Pages: 807-826
Issue: 8
Volume: 44
Year: 2021
Month: 11
X-DOI: 10.1080/03081060.2021.1992176
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1992176
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Handle: RePEc:taf:transp:v:44:y:2021:i:8:p:807-826
Template-Type: ReDIF-Article 1.0
Author-Name: Yuanmeng Zhao
Author-X-Name-First: Yuanmeng
Author-X-Name-Last: Zhao
Author-Name: Jie Cao
Author-X-Name-First: Jie
Author-X-Name-Last: Cao
Author-Name: Hong Zhang
Author-X-Name-First: Hong
Author-X-Name-Last: Zhang
Author-Name: Zongli Liu
Author-X-Name-First: Zongli
Author-X-Name-Last: Liu
Title: A deep learning traffic flow prediction framework based on multi-channel graph convolution
Abstract:
Accurate and timely traffic flow prediction is a critical part of the steps to alleviate traffic congestion. Fully considering the spatial–temporal dependencies of traffic flow is the key to accurately predicting traffic flow. Addressing the problem that traditional methods are difficult to capture the complex spatial–temporal dependence of urban traffic flow, and therefore cannot meet the accuracy requirements for medium and long-term prediction tasks, this paper uses Graph Convolution (GCN) and Long Short-Term Memory (LSTM) methods to capture time and space dependence through data analysis, and proposes a new type of deep learning model MCGC-LSTM. GCN is utilized to learn spatial dependence by analyzing the topological structure of an urban road traffic network, while LSTM is utilized to learn temporal dependence by analyzing the dynamic changes of traffic flow. The experimental results based on a real data set show that this method can achieve better prediction accuracy.
Journal: Transportation Planning and Technology
Pages: 887-900
Issue: 8
Volume: 44
Year: 2021
Month: 11
X-DOI: 10.1080/03081060.2021.1992180
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1992180
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Handle: RePEc:taf:transp:v:44:y:2021:i:8:p:887-900
Template-Type: ReDIF-Article 1.0
Author-Name: Junseo Bae
Author-X-Name-First: Junseo
Author-X-Name-Last: Bae
Title: A supervised learning approach to calibrating annual average daily traffic against highway roadworks: the impact of demographic and weather conditions
Abstract:
Annual average daily traffic (AADT) is an essential parameter to evaluate the level of mobility in large urban corridors often affected by highway roadworks. However, very little is known about AADT calibration methods that can project the impact of highway roadworks. This study draws upon 13,152 data points collected from the M8 motorway in Scotland, U.K., to propose a machine-learning-driven schematic calibration methodology that can extract the impact of highway roadworks from existing AADT measurements. The robustness of the proposed model is rigorously tested and validated. As the first of its kind, this study provides practical equation models that can extract the impact of roadworks under different demographic and weather conditions from the given AADT. This study should assist governmental transportation agencies in estimating the potential impact of highway roadworks from the very beginning procedures of developing transportation management plans, which is hidden from a single figure of historical AADT.
Journal: Transportation Planning and Technology
Pages: 901-916
Issue: 8
Volume: 44
Year: 2021
Month: 11
X-DOI: 10.1080/03081060.2021.1992181
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1992181
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Handle: RePEc:taf:transp:v:44:y:2021:i:8:p:901-916
Template-Type: ReDIF-Article 1.0
Author-Name: Adriano Tanda
Author-X-Name-First: Adriano
Author-X-Name-Last: Tanda
Author-Name: Alberto De Marco
Author-X-Name-First: Alberto
Author-X-Name-Last: De Marco
Title: The value propositions of Smart City Mobility projects
Abstract:
Public city administrators who have been seeking to reduce traffic congestion and pollution, while improving livability and economic competitiveness, via increased investment in promising Smart City (SC) Mobility solutions. However, despite scholarly interest and booming market of solutions and technologies, there is still the need to unlock the value that SC Mobility projects can bring and to understand how these projects define and deliver value. To this end, this study presents an empirical analysis of 300 mobility projects internationally. Projects are scrutinized according to a business model framework and the variety of project characteristics are analyzed. Classification of business modeling characteristics of SC Mobility projects is given, illustrating the main benefits and objectives of smart mobility projects and how such value is generated and distributed among stakeholders. The resulting implications are two-fold. First, it helps scholars with a common business model reference to evaluate SC Mobility projects. Second, it supports the decision-making processes of both public and private organizations and acts as a best practice guide for design and implementation of innovative SC Mobility projects.
Journal: Transportation Planning and Technology
Pages: 860-886
Issue: 8
Volume: 44
Year: 2021
Month: 11
X-DOI: 10.1080/03081060.2021.1992179
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1992179
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Handle: RePEc:taf:transp:v:44:y:2021:i:8:p:860-886
Template-Type: ReDIF-Article 1.0
Author-Name: Aleksandar Janjić
Author-X-Name-First: Aleksandar
Author-X-Name-Last: Janjić
Author-Name: Lazar Velimirović
Author-X-Name-First: Lazar
Author-X-Name-Last: Velimirović
Author-Name: Jelena Velimirović
Author-X-Name-First: Jelena
Author-X-Name-Last: Velimirović
Author-Name: Petar Vranić
Author-X-Name-First: Petar
Author-X-Name-Last: Vranić
Title: Estimating the optimal number and locations of electric vehicle charging stations: the application of multi-criteria p-median methodology
Abstract:
Recent developments related to the widespread utilization of electric vehicles (EV) have required the building of sound and reliable public charging networks. In the literature, this task has usually been approached by optimizing the spatial distribution of a predefined number of stations, based on a number of selection criteria. Our study provides a new multi-criteria approach to the optimization of both charging station numbers and locations. The optimization procedure is based on the fulfilment of the following criteria: EV installation costs, walking distances to the charging station locations, location safety, access to parking, and power distribution network capacity. The novel methodology used for the analysis is the p-median based modified with an iterative approach and distances weighted with the Analytic Hierarchy Process (AHP) approach. The optimal number and site selection methodology of charging stations are verified based on a case study of the city of Niš (Serbia).
Journal: Transportation Planning and Technology
Pages: 827-842
Issue: 8
Volume: 44
Year: 2021
Month: 11
X-DOI: 10.1080/03081060.2021.1992177
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1992177
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Handle: RePEc:taf:transp:v:44:y:2021:i:8:p:827-842
Template-Type: ReDIF-Article 1.0
Author-Name: Thi My Thanh Truong
Author-X-Name-First: Thi My Thanh
Author-X-Name-Last: Truong
Author-Name: Hai-Bang Ly
Author-X-Name-First: Hai-Bang
Author-X-Name-Last: Ly
Author-Name: Dongwoo Lee
Author-X-Name-First: Dongwoo
Author-X-Name-Last: Lee
Author-Name: Binh Thai Pham
Author-X-Name-First: Binh Thai
Author-X-Name-Last: Pham
Author-Name: Sybil Derrible
Author-X-Name-First: Sybil
Author-X-Name-Last: Derrible
Title: Analyzing travel behavior in Hanoi using Support Vector Machine
Abstract:
This study investigates travel decisions (i.e. travel mode and destination) in Hanoi (Vietnam) using Support Vector Machine (SVM). First, a travel interview survey was conducted and 311 responses were collected across Hanoi. Second, a SVM model was trained to predict travel decisions and compared with a multinomial logit (MNL) model (as a benchmark). Third, the most important variables that affect travel decisions were ranked and discussed. The results show that SVM achieves an accuracy of 76.1% (compared to 72.9% for MNL). Moreover, proposed parking charges, household income, trip mode, and trip cost are found to be the most important variables. In contrast, trip purpose, gender, and occupation are found to negatively affect the model. Overall, low travel cost and low motorcycle parking charges, especially for commuters and shoppers, make people less willing to switch to more sustainable modes such as public and active transport.
Journal: Transportation Planning and Technology
Pages: 843-859
Issue: 8
Volume: 44
Year: 2021
Month: 11
X-DOI: 10.1080/03081060.2021.1992178
File-URL: http://hdl.handle.net/10.1080/03081060.2021.1992178
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Handle: RePEc:taf:transp:v:44:y:2021:i:8:p:843-859
Template-Type: ReDIF-Article 1.0
Author-Name: Raj Bridgelall
Author-X-Name-First: Raj
Author-X-Name-Last: Bridgelall
Author-Name: Denver D. Tolliver
Author-X-Name-First: Denver D.
Author-X-Name-Last: Tolliver
Title: Budgeting for the adoption of sensors on connected trains
Abstract:
Railroads can save significant sums of money by deploying multi-sensor track scanners on connected trains to detect track and roadbed problems that could cause accidents. However, uncertainties about performance and return-on-investment have impeded the development and deployment of such sensor systems. This research develops a budget model that both manufacturers and railroads can use to decide on a suitable trade-off between price affordability and achievable performance. A case study of five Class 1 railroads in the U.S. demonstrates that a payback within two years is achievable at U.S.$4000 per device and an annual maintenance cost of one-quarter of the system deployment cost.
Journal: Transportation Planning and Technology
Pages: 100-116
Issue: 1
Volume: 45
Year: 2022
Month: 01
X-DOI: 10.1080/03081060.2021.2017205
File-URL: http://hdl.handle.net/10.1080/03081060.2021.2017205
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Handle: RePEc:taf:transp:v:45:y:2022:i:1:p:100-116
Template-Type: ReDIF-Article 1.0
Author-Name: Annesha Enam
Author-X-Name-First: Annesha
Author-X-Name-Last: Enam
Author-Name: Ali Ardeshiri
Author-X-Name-First: Ali
Author-X-Name-Last: Ardeshiri
Author-Name: Taha H. Rashidi
Author-X-Name-First: Taha H.
Author-X-Name-Last: Rashidi
Author-Name: Joshua Auld
Author-X-Name-First: Joshua
Author-X-Name-Last: Auld
Title: Do automated vehicle (AV) enthusiasts value travel time differently from cautious travelers? an exploration of travelers’ attitudes towards AV
Abstract:
The anticipation of automated vehicles (AV) has resulted in diverse research topics, including understanding the adoption and usage of this emerging mode. Using attitudinal indicators, this paper identifies prevalent types of attitudes towards AV. It then explores the variation of those attitudes across different demographic groups and quantifies the influence of these attitudes on the preference for AV. The paper uses stated preference survey data collected among respondents of Chicago in 2019. The exploratory factor analysis of the attitudinal indicators identifies four factors, namely ‘Cautious Travelers’, ‘Hedonists’, ‘Utilitarians’, and ‘Safety-First’. Next, the paper develops an integrated choice and latent variable model to test the influence of these four types of attitudes on the preference for AV. The results indicate that the cautious travelers associate higher Value of Travel Time (VOTT) to AV and enthusiasts associate lower VOTT to AV than a base model without such attitudes.
Journal: Transportation Planning and Technology
Pages: 19-38
Issue: 1
Volume: 45
Year: 2022
Month: 01
X-DOI: 10.1080/03081060.2021.2017208
File-URL: http://hdl.handle.net/10.1080/03081060.2021.2017208
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Handle: RePEc:taf:transp:v:45:y:2022:i:1:p:19-38
Template-Type: ReDIF-Article 1.0
Author-Name: Jishnu Narayan
Author-X-Name-First: Jishnu
Author-X-Name-Last: Narayan
Author-Name: Oded Cats
Author-X-Name-First: Oded
Author-X-Name-Last: Cats
Author-Name: Niels van Oort
Author-X-Name-First: Niels
Author-X-Name-Last: van Oort
Author-Name: Serge Paul Hoogendoorn
Author-X-Name-First: Serge Paul
Author-X-Name-Last: Hoogendoorn
Title: On the scalability of private and pooled on-demand services for urban mobility in Amsterdam
Abstract:
The emergence of on-demand transport services is set to change the mobility landscape in urban areas. This study investigates the potential scalability of an on-demand mobility system to substitute motorised trips performed by private cars and public transport in Amsterdam, The Netherlands. We adopt an agent-based simulation framework and investigate scenarios where either private and pooled on-demand services replace private car trips, public transport trips, or both private car and public transport trips. Service performance in terms of level of service offered and operational efficiency are analysed. Results indicate that pooled on-demand services fare better than private on-demand in terms of veh-km travelled and the empty drive ratio. Private on-demand services generate 43%, 38%, and 44% more veh-km than pooled on-demand services when on-demand services replace car trips, public transport trips, or car and public transport trips, respectively. However, private on-demand services offer shorter total travel times than pooled on-demand for all scenarios.
Journal: Transportation Planning and Technology
Pages: 2-18
Issue: 1
Volume: 45
Year: 2022
Month: 01
X-DOI: 10.1080/03081060.2021.2017214
File-URL: http://hdl.handle.net/10.1080/03081060.2021.2017214
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Handle: RePEc:taf:transp:v:45:y:2022:i:1:p:2-18
Template-Type: ReDIF-Article 1.0
Author-Name: Abdul Haseeb Khan Babar
Author-X-Name-First: Abdul Haseeb
Author-X-Name-Last: Khan Babar
Author-Name: Ali Yousaf
Author-X-Name-First: Ali
Author-X-Name-Last: Yousaf
Title: Optimization of charging infrastructure planning for plug-in electric vehicles based on a dynamic programming model
Abstract:
Electric vehicles (EV) are a new mode of transportations that are replacing conventional vehicles. However, EVs face the problem of insufficient charging infrastructure which limits their drive range. Furthermore, the limited resources of countries are also a major problem faced by EVs in infrastructure planning and development. To overcome this problem, this paper proposes a model, comprising several techniques that allocate the limited resources optimally. Moreover, the model also identifies the location and number of stations required for maximizing the drive range of EVs. The methods used in the model are Activity Relationship Chart (ARC) for the recording of data, Dynamic Programming (DP) for optimal allocation of resources, and the center of gravity (COG) method to check the feasibility of the results obtained by DP. The model is applied to a case study of a motorway system in Pakistan to identify and optimally allocate charging stations along the route that connects the four major cities of Pakistan. The optimized allocation of limited resources using the proposed model simultaneously takes into account the flow, distance, resource limit, and range limit of EVs while building charging infrastructure plans.
Journal: Transportation Planning and Technology
Pages: 59-75
Issue: 1
Volume: 45
Year: 2022
Month: 01
X-DOI: 10.1080/03081060.2021.2017207
File-URL: http://hdl.handle.net/10.1080/03081060.2021.2017207
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Handle: RePEc:taf:transp:v:45:y:2022:i:1:p:59-75
Template-Type: ReDIF-Article 1.0
Author-Name: David Gillingwater
Author-X-Name-First: David
Author-X-Name-Last: Gillingwater
Title: Editorial
Journal: Transportation Planning and Technology
Pages: 1-1
Issue: 1
Volume: 45
Year: 2022
Month: 01
X-DOI: 10.1080/03081060.2022.2031657
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2031657
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Handle: RePEc:taf:transp:v:45:y:2022:i:1:p:1-1
Template-Type: ReDIF-Article 1.0
Author-Name: Wentao Yu
Author-X-Name-First: Wentao
Author-X-Name-Last: Yu
Author-Name: Huijun Sun
Author-X-Name-First: Huijun
Author-X-Name-Last: Sun
Author-Name: Jianjun Wu
Author-X-Name-First: Jianjun
Author-X-Name-Last: Wu
Author-Name: Ying Lv
Author-X-Name-First: Ying
Author-X-Name-Last: Lv
Author-Name: Xiaoting Shang
Author-X-Name-First: Xiaoting
Author-X-Name-Last: Shang
Author-Name: Xiang Wang
Author-X-Name-First: Xiang
Author-X-Name-Last: Wang
Title: Mapping multimodal random accessibility using smart card data: a case study of bus and subway stations in Beijing
Abstract:
Research on multimodal accessibility under uncertain travel time has become a significant issue. Existing studies on accessibility lack a direct integration of multi-source data accessibility evaluation methods. This paper develops a multimodal random accessibility model (MR model). Multi-source data is integrated with a built-in joint calculation method of walking time, waiting time, and transit time while considering the effects of both the travel time budget in the time dimension and distance friction parameter in the spatial dimension. Taking Beijing as an example, accessibility generally shows a downward trend from the center of the city to the suburbs, especially along the subway lines, and there is a positive correlation between traffic flow and accessibility. The low-accessible high-flow area is mainly distributed in areas away from the city center and at the end of subway lines. These results could help transport planners formulate more reasonable public transport planning policies.
Journal: Transportation Planning and Technology
Pages: 76-99
Issue: 1
Volume: 45
Year: 2022
Month: 01
X-DOI: 10.1080/03081060.2021.2017206
File-URL: http://hdl.handle.net/10.1080/03081060.2021.2017206
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Handle: RePEc:taf:transp:v:45:y:2022:i:1:p:76-99
Template-Type: ReDIF-Article 1.0
Author-Name: Ali Soltani
Author-X-Name-First: Ali
Author-X-Name-Last: Soltani
Author-Name: Andrew Allan
Author-X-Name-First: Andrew
Author-X-Name-Last: Allan
Author-Name: Dorina Pojani
Author-X-Name-First: Dorina
Author-X-Name-Last: Pojani
Author-Name: Fahimeh Khalaj
Author-X-Name-First: Fahimeh
Author-X-Name-Last: Khalaj
Author-Name: Milad Mehdizadeh
Author-X-Name-First: Milad
Author-X-Name-Last: Mehdizadeh
Title: Users and non-users of bikesharing: how do they differ?
Abstract:
What makes some people eschew bikesharing? What distinguishes users from non-users? The present study examines the transport priorities and socio-demographic characteristics of both users and non-users of bikesharing in the context of Adelaide, an Australian metropolis of 1.3 million people. We apply statistical techniques, including Principal Component Analysis (PCA) and two-level Nested Logit (NL) modelling, to original survey data collected in 2018. We find that younger age, digital literacy, full-time work status, household size, and certain transport priority dimensions which we term Safekeeping, Ease, and Fitness, are key factors associated with the likelihood of choosing or shunning bikesharing as a mode of transport.
Journal: Transportation Planning and Technology
Pages: 39-58
Issue: 1
Volume: 45
Year: 2022
Month: 01
X-DOI: 10.1080/03081060.2021.2017215
File-URL: http://hdl.handle.net/10.1080/03081060.2021.2017215
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Handle: RePEc:taf:transp:v:45:y:2022:i:1:p:39-58
Template-Type: ReDIF-Article 1.0
Author-Name: Classio Joao Mendiate
Author-X-Name-First: Classio Joao
Author-X-Name-Last: Mendiate
Author-Name: Alphonse Nkurunziza
Author-X-Name-First: Alphonse
Author-X-Name-Last: Nkurunziza
Author-Name: Julio A. Soria-Lara
Author-X-Name-First: Julio A.
Author-X-Name-Last: Soria-Lara
Author-Name: Andres Monzon
Author-X-Name-First: Andres
Author-X-Name-Last: Monzon
Title: Exploring Users’ perceptions of factors influencing cycling route choice: A perspective from Quelimane, Mozambique
Abstract:
Cyclists are more sensitive to weather conditions and the surrounding environment than other road users, so cycling route choice is influenced by the departure time and built-environment characteristics. Drawn from empirical data collected from 898 cycling commuters in Quelimane, Mozambique, this study examines how three cycling segments, Demanding cyclists (DC), Cautious cyclists (CC) and Forced cyclists (FC), perceive various cycling route choice factors. The Kruskal–Wallis test is used for analysis, and the results show that FC departing in cool-hours and CC departing in hot-hours and in the transition between cool/hot-hours perceive traffic speed as an important cycling route choice factor. For the built-environment, for those cycling within the inner-city, FC and CC cite lack of tree cover as an influential route choice factor. CC who cycle in the city-periphery perceive traffic speed as important. DC and CC who cycle frequently between the inner-city/city-periphery perceive cycling distance as a strong factor.
Journal: Transportation Planning and Technology
Pages: 119-137
Issue: 2
Volume: 45
Year: 2022
Month: 02
X-DOI: 10.1080/03081060.2022.2088535
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2088535
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Handle: RePEc:taf:transp:v:45:y:2022:i:2:p:119-137
Template-Type: ReDIF-Article 1.0
Author-Name: Xavier Harmony
Author-X-Name-First: Xavier
Author-X-Name-Last: Harmony
Title: Can transportation network companies replace the bus? An evaluation of shared mobility operating costs
Abstract:
Municipal governments struggle with providing accessible mobility for constituents without overburdening them with service costs. While transit offers many advantages, the cost of providing services can be prohibitive. Transportation Network Companies (TNCs) are a mobility alternative. This research answers the following question: Can TNCs be economically feasible as a replacement for bus? U.S. Federal Transit Administration (FTA) National Transit Database (NTD) data was evaluated finding that while TNCs could replace transit in some instances (23% of cases for an exclusive TNC option; 45% of cases for shared TNCs) most of the time bus will be more cost effective. Three agency characteristics were identified to anticipate TNC cost effectiveness: ridership, service area density, and average bus operating speeds. Overall, while TNCs are unlikely to be able to replace transit completely in most cases, their flexibility allows public entities to be more creative when making mobility policy and operational decisions.
Journal: Transportation Planning and Technology
Pages: 138-158
Issue: 2
Volume: 45
Year: 2022
Month: 02
X-DOI: 10.1080/03081060.2022.2080677
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2080677
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Handle: RePEc:taf:transp:v:45:y:2022:i:2:p:138-158
Template-Type: ReDIF-Article 1.0
Author-Name: Simon Blainey
Author-X-Name-First: Simon
Author-X-Name-Last: Blainey
Title: 50 years of Transportation Planning and Technology: an anniversary and a new chapter
Journal: Transportation Planning and Technology
Pages: 117-118
Issue: 2
Volume: 45
Year: 2022
Month: 02
X-DOI: 10.1080/03081060.2022.2073698
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2073698
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Handle: RePEc:taf:transp:v:45:y:2022:i:2:p:117-118
Template-Type: ReDIF-Article 1.0
Author-Name: Boniphace Kutela
Author-X-Name-First: Boniphace
Author-X-Name-Last: Kutela
Author-Name: Norris Novat
Author-X-Name-First: Norris
Author-X-Name-Last: Novat
Author-Name: Emmanuel Kofi Adanu
Author-X-Name-First: Emmanuel Kofi
Author-X-Name-Last: Adanu
Author-Name: Emmanuel Kidando
Author-X-Name-First: Emmanuel
Author-X-Name-Last: Kidando
Author-Name: Neema Langa
Author-X-Name-First: Neema
Author-X-Name-Last: Langa
Title: Analysis of residents’ stated preferences of shared micro-mobility devices using regression-text mining approach
Abstract:
Prior to establishing micro-mobility schemes, operators gather residents’ willingness to use them. However, an inadequate survey setting may lead to demand over- or under-estimation. This study used survey data from Gilbert City, Arizona, to understand the implications of the stated preferences of micro-mobility devices. The application of multinomial logit regression and text networks revealed a great disparity between the stated ‘want’ and ‘use’ of micro-mobility devices. Male residents were more likely to respond that they wanted and would use electric scooters. Conversely, older residents were less likely to respond that they wanted and would use either electric scooters or dockless bikes. High-income residents were more likely to want either electric scooters or docked bike-sharing in the city, but do not plan to use them. Additionally, residents’ comments focused more on electric scooters than other schemes. The implications of the findings to operators, engineers, and planners are discussed in the study.
Journal: Transportation Planning and Technology
Pages: 159-178
Issue: 2
Volume: 45
Year: 2022
Month: 02
X-DOI: 10.1080/03081060.2022.2089145
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2089145
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Handle: RePEc:taf:transp:v:45:y:2022:i:2:p:159-178
Template-Type: ReDIF-Article 1.0
Author-Name: Takanori Sakai
Author-X-Name-First: Takanori
Author-X-Name-Last: Sakai
Author-Name: Yusuke Hara
Author-X-Name-First: Yusuke
Author-X-Name-Last: Hara
Author-Name: Ravi Seshadri
Author-X-Name-First: Ravi
Author-X-Name-Last: Seshadri
Author-Name: André Romano Alho
Author-X-Name-First: André Romano
Author-X-Name-Last: Alho
Author-Name: Md Sami Hasnine
Author-X-Name-First: Md Sami
Author-X-Name-Last: Hasnine
Author-Name: Peiyu Jing
Author-X-Name-First: Peiyu
Author-X-Name-Last: Jing
Author-Name: ZhiYuan Chua
Author-X-Name-First: ZhiYuan
Author-X-Name-Last: Chua
Author-Name: Moshe Ben-Akiva
Author-X-Name-First: Moshe
Author-X-Name-Last: Ben-Akiva
Title: Household-based E-commerce demand modeling for an agent-based urban transportation simulation platform
Abstract:
The e-commerce market has grown rapidly in the past two decades. The need for predicting e-commerce demand and evaluating relevant policies and solutions is increasing. However, the existing simulation models for e-commerce demand are still limited and do not consider the impacts of delivery options and their attributes that shoppers face on multiple dimensions of e-commerce demand. We propose a novel framework involving disaggregate behavioral models that jointly predict e-commerce expenditure, purchase amount per transaction, delivery mode, and option choices. The proposed framework can simulate the changes in e-commerce demand and be used to evaluate the impacts of a range of policies and solutions. We specify the model parameters based on various sources of relevant information, integrate the model into an urban freight simulator, and conduct a demonstrative simulation for a prototypical North American city. The results of the analysis highlight the capability and applicability of the proposed modeling framework.
Journal: Transportation Planning and Technology
Pages: 179-201
Issue: 2
Volume: 45
Year: 2022
Month: 02
X-DOI: 10.1080/03081060.2022.2084397
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2084397
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Handle: RePEc:taf:transp:v:45:y:2022:i:2:p:179-201
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2093874_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220823T191300 git hash: 39867e6e2f
Author-Name: Shaojie Liu
Author-X-Name-First: Shaojie
Author-X-Name-Last: Liu
Author-Name: Wei (David) Fan
Author-X-Name-First: Wei (David)
Author-X-Name-Last: Fan
Title: Platooning-based trajectory planning of connected and autonomous vehicles at superstreets
Abstract:
Alternative intersection designs are popular existing strategies that can be used for handling heavy traffic in the U.S., and research on the performance of CAVs in the alternative intersection design can complement our knowledge of the impact of CAVs. Hence, this research attempts to mitigate this research gap through a simulation-based study on a superstreet, one of the popular alternative intersection designs. A real-world superstreet is selected for the simulation-based study with collected traffic volumes and average speeds. HDVs are modeled using Wiedemann 99 with calibrated parameters while CAVs are modeled using the intelligent driver model (IDM). Platooning and trajectory planning capabilities of CAVs are modeled in the designed simulation. The simulation results show that the proposed framework for CAVs can successfully reduce fuel consumption in different market penetration rates and traffic scales.
Journal: Transportation Planning and Technology
Pages: 251-267
Issue: 3
Volume: 45
Year: 2022
Month: 04
X-DOI: 10.1080/03081060.2022.2093874
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2093874
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Handle: RePEc:taf:transp:v:45:y:2022:i:3:p:251-267
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2103559_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220823T191300 git hash: 39867e6e2f
Author-Name: Zhengyu Duan
Author-X-Name-First: Zhengyu
Author-X-Name-Last: Duan
Author-Name: Xiaolei Liu
Author-X-Name-First: Xiaolei
Author-X-Name-Last: Liu
Author-Name: Qing Yu
Author-X-Name-First: Qing
Author-X-Name-Last: Yu
Author-Name: Yi Li
Author-X-Name-First: Yi
Author-X-Name-Last: Li
Title: Analyzing detour behavior of metro passengers based on mobile phone data
Abstract:
In this paper, a method of metro-passenger path extraction based on mobile phone data is presented. Paths that differ from theoretical optimal paths derived from the shortest-path model are identified as detours. According to transfer times or the effect on passenger flow of the metro network, two classification methods for detours are proposed. Based on analysis of one-month mobile phone data in Shanghai, China, 10.45% of trips are identified as detours. Without considering detours, the accuracy of the theoretical model in predicting passenger flow by segment is only 69.43%. Detours with as equal transfers as on theoretically optimal paths (ETs) occur mainly at the stations far away from the city center. Detours with more transfers (MTs) occur in the center city. Detours with fewer transfers (FTs) occur in stations on the loop line. To alleviate congestion on the metro network, FTs should be encouraged and others should be discouraged.
Journal: Transportation Planning and Technology
Pages: 289-309
Issue: 3
Volume: 45
Year: 2022
Month: 04
X-DOI: 10.1080/03081060.2022.2103559
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2103559
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Handle: RePEc:taf:transp:v:45:y:2022:i:3:p:289-309
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2105339_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220823T191300 git hash: 39867e6e2f
Author-Name: Tomoru Hiramatsu
Author-X-Name-First: Tomoru
Author-X-Name-Last: Hiramatsu
Title: Impact of autonomous vehicles on the choice of residential locality
Abstract:
Introducing autonomous vehicles (AVs) reduces generalized transportation costs and encourages people to relocate. Understanding the subsequent changes in urban structure can help predict the future development of urban economies and policies. Transportation connects multiple zones in cities, and by improving traffic flow and ease directly impacts the economies of various markets. Each direct impact then also indirectly affects related markets. Therefore, a spatial computable general equilibrium model that connects multiple zones via a transportation network is suitable for analyzing the impact of a new transport system. This study constructs a model to simulate the effects of AVs on residential location choice. The results show that increased prevalence of AVs steers people toward suburbs with poor public transportation. Thus, high-income workers react more to technological progress, while low-income workers react more to lowered ownership costs. Consumers’ location choices and budgets also affect residential zones’ development. Therefore, regional policy goals must be clarified and appropriate target consumer groups set when introducing AVs.
Journal: Transportation Planning and Technology
Pages: 268-288
Issue: 3
Volume: 45
Year: 2022
Month: 04
X-DOI: 10.1080/03081060.2022.2105339
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2105339
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Handle: RePEc:taf:transp:v:45:y:2022:i:3:p:268-288
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# input file: GTPT_A_2094930_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220823T191300 git hash: 39867e6e2f
Author-Name: Ines Österle
Author-X-Name-First: Ines
Author-X-Name-Last: Österle
Author-Name: Christian Ulrich
Author-X-Name-First: Christian
Author-X-Name-Last: Ulrich
Author-Name: Sebastian Herwartz-Polster
Author-X-Name-First: Sebastian
Author-X-Name-Last: Herwartz-Polster
Author-Name: Sebastian Sigle
Author-X-Name-First: Sebastian
Author-X-Name-Last: Sigle
Author-Name: Jürgen Weimer
Author-X-Name-First: Jürgen
Author-X-Name-Last: Weimer
Author-Name: Marcus Conzelmann
Author-X-Name-First: Marcus
Author-X-Name-Last: Conzelmann
Author-Name: Tobias Fleck
Author-X-Name-First: Tobias
Author-X-Name-Last: Fleck
Author-Name: Marc Zofka
Author-X-Name-First: Marc
Author-X-Name-Last: Zofka
Title: Benefits and costs of shared, modular automated vehicles for freight and passenger transport: the case of U-Shift
Abstract:
This study analyses the costs and benefits of fully automated vehicles, operated as part of a ride-sharing system and it compares two alternative technological solutions. For the first solution, automated driving is enabled by hardware and software fully incorporated in the vehicle. For the second solution, automated driving of vehicles is supported by ‘smart roads’ and vehicle movements are coordinated by a central traffic management centre. The study conducts a cost–benefit analysis of these options and a Base Case. The results demonstrate the economic viability of both technological alternatives and show that benefits from improvements in road safety, air pollution and CO2 emissions outweigh costs. The results further demonstrate that the infrastructure-based automation approach is a more cost-efficient way to enable full automation of driving, compared to the current industry-driven approach which is based on vehicles where automated driving tasks are not supported by the road infrastructure.
Journal: Transportation Planning and Technology
Pages: 203-225
Issue: 3
Volume: 45
Year: 2022
Month: 04
X-DOI: 10.1080/03081060.2022.2094930
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2094930
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Handle: RePEc:taf:transp:v:45:y:2022:i:3:p:203-225
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# input file: GTPT_A_2092736_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220823T191300 git hash: 39867e6e2f
Author-Name: Mohammad Anwar Alattar
Author-X-Name-First: Mohammad Anwar
Author-X-Name-Last: Alattar
Author-Name: Caitlin Cottrill
Author-X-Name-First: Caitlin
Author-X-Name-Last: Cottrill
Author-Name: Mark Beecroft
Author-X-Name-First: Mark
Author-X-Name-Last: Beecroft
Title: Exploring informants’ perspectives on the role of crowdsourced active travel data
Abstract:
In the era of ubiquitous technology, crowdsourced data is an emerging frontier for active travel (AT) studies. In this work, we utilize accrued knowledge from interviews and previous literature regarding crowdsourced data strengths, challenges, usefulness and reliability for future informants who seek to embrace crowdsourced data. We review four main types of crowdsourced data: social fitness networks, in-house developed apps, bike sharing systems and participatory mapping. The strengths of crowdsourced data include providing fine data coverage, precision, details, immediacy and empowering users to participate in decision-making. Potential challenges that might arise from adopting this data are related to technical, privacy, proprietorship, financial and data fragmentation factors. In terms of usefulness, crowdsourced data lend themselves to before and after analysis, assessing current infrastructure, and investment prioritization. Reliability issues that may undermine the credibility of crowdsourced data are also discussed, as well as remedies for these concerns.
Journal: Transportation Planning and Technology
Pages: 226-250
Issue: 3
Volume: 45
Year: 2022
Month: 04
X-DOI: 10.1080/03081060.2022.2092736
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2092736
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Handle: RePEc:taf:transp:v:45:y:2022:i:3:p:226-250
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# input file: GTPT_A_2110103_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Pei-Chun Lin
Author-X-Name-First: Pei-Chun
Author-X-Name-Last: Lin
Author-Name: Chung-Wei Shen
Author-X-Name-First: Chung-Wei
Author-X-Name-Last: Shen
Author-Name: Jenhung Wang
Author-X-Name-First: Jenhung
Author-X-Name-Last: Wang
Author-Name: Chuan-Ming Yang
Author-X-Name-First: Chuan-Ming
Author-X-Name-Last: Yang
Title: Spatial analysis of accidents involving food delivery motorcycles in Taiwan
Abstract:
The study explored whether the growth of food-delivery services has affected motorcycle accident patterns. When riders check their phones for directions and orders, safety risks rise. The study conducted analysis on the spatial pattern of motorcycle accidents. Separate models for food delivery and non-food delivery motorcycle accidents (FDMAs vs. NFDMAs) were built to detect differences, and the relative importance of spatial features particular to FDMAs is discussed. Trends in motorcycle accidents in Taiwan changed from 2012 to 2019. The cross-sectional analysis revealed that hotel and restaurant density along with FDMAs reported in the previous year can predict the number of FDMAs; whereas the number of NFDMAs can be determined by population density and the number of 3-legged intersections. The spatial analysis of motorcycle accidents help increase couriers’ risk awareness in specific workplaces, provide insurance companies with a benchmark for regional pricing differentiation, and offer support for distracted riding regulations.
Journal: Transportation Planning and Technology
Pages: 335-357
Issue: 4
Volume: 45
Year: 2022
Month: 05
X-DOI: 10.1080/03081060.2022.2110103
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2110103
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Handle: RePEc:taf:transp:v:45:y:2022:i:4:p:335-357
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# input file: GTPT_A_2110102_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Hoang Thuy Linh
Author-X-Name-First: Hoang Thuy
Author-X-Name-Last: Linh
Author-Name: Nguyen Hoang-Tung
Author-X-Name-First: Nguyen
Author-X-Name-Last: Hoang-Tung
Author-Name: Vu Anh Tuan
Author-X-Name-First: Vu Anh
Author-X-Name-Last: Tuan
Author-Name: Muhammad Adnan
Author-X-Name-First: Muhammad
Author-X-Name-Last: Adnan
Author-Name: Tom Bellemans
Author-X-Name-First: Tom
Author-X-Name-Last: Bellemans
Title: Heterogeneity in behavioural response to pricing policies in the transition from motorcycles to private cars in motorcycle-based societies
Abstract:
Pricing instruments are widely seen as an effective tool for reducing the travel demand for private vehicles. In contrast to developed countries, the design of pricing policies in certain developing countries is more challenging, owing to the mixed use of private cars and motorcycles. This study argues for the existence of a transitional group of motorcycle users who will switch to being car users. An investigation of the behavioural responses to a pricing policy from private car users and motorcycle users is implemented in Ho Chi Minh City, Vietnam. A propensity score-matching technique is used to identify the transitional group. The results regarding the mode choice models for various pricing policies show similar responses between the transitional motorcycle users and car users. Such characteristics of the transitional group imply that ignorance of travellers’ heterogeneity may cause significant bias, especially when modelling pricing policies.
Journal: Transportation Planning and Technology
Pages: 311-334
Issue: 4
Volume: 45
Year: 2022
Month: 05
X-DOI: 10.1080/03081060.2022.2110102
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2110102
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Handle: RePEc:taf:transp:v:45:y:2022:i:4:p:311-334
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# input file: GTPT_A_2111430_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Yunfei Ma
Author-X-Name-First: Yunfei
Author-X-Name-Last: Ma
Author-Name: Amir Amiri
Author-X-Name-First: Amir
Author-X-Name-Last: Amiri
Author-Name: Elkafi Hassini
Author-X-Name-First: Elkafi
Author-X-Name-Last: Hassini
Author-Name: Saiedeh Razavi
Author-X-Name-First: Saiedeh
Author-X-Name-Last: Razavi
Title: Transportation data visualization with a focus on freight: a literature review
Abstract:
Road-based freight movements are a critical component of the supply chain and transportation networks. With the drive to invest in big data collection capabilities, most of the collected freight movement data remain underutilized. To improve the efficiency and resiliency of the supply chain, it is essential to enhance the visibility of goods movements on road networks. To this end, we provide in this paper a comprehensive literature review on this topic and analyze the previous research from different perspectives, such as data levels of abstraction and existing visualization techniques. In addition, we provide a taxonomy of freight transportation visualization according to the underlying analytic objective. Furthermore, we propose a decision support tool to aid freight data analysts in selecting the right visualization tools. Finally, we identify research gaps in the field of freight transportation visualization.Highlights
Systematic bibliometric analysis of state of art research related to location-based telematics data visualizationApplications for location-based telematics data based on different levels of abstractionA taxonomy for visualization techniques for location-based telematics data and possible application in freight transportationA proposed decision support tool for selecting possible visualization techniques based on the abstraction and availability of dataDiscussion of challenges and future research direction for freight transportation data visualization
Journal: Transportation Planning and Technology
Pages: 358-401
Issue: 4
Volume: 45
Year: 2022
Month: 05
X-DOI: 10.1080/03081060.2022.2111430
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2111430
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Handle: RePEc:taf:transp:v:45:y:2022:i:4:p:358-401
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# input file: GTPT_A_2122465_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Maria Nikoletta Asimakopoulou
Author-X-Name-First: Maria Nikoletta
Author-X-Name-Last: Asimakopoulou
Author-Name: Lambros Mitropoulos
Author-X-Name-First: Lambros
Author-X-Name-Last: Mitropoulos
Author-Name: Christina Milioti
Author-X-Name-First: Christina
Author-X-Name-Last: Milioti
Title: Exploring factors affecting ridesharing users in academic institutes in the region of Attica, Greece
Abstract:
The advent of ridesharing introduced changes in transportation planning and raised issues regarding its acceptance and usage by potential users. This study contributes to the existing ridesharing literature by focusing on the implementation of ridesharing services in academic institutes. An online survey is deployed in the Region of Attica, Greece to explore the factors that may contribute towards using ridesharing to travel to and from academic institutes by using a service that is hosted by the institute and offered only to its registered students and employees. In total 844 respondents completed the survey. Identified factors for ridesharing passengers are grouped into: (1) reasons, (2) motives, and (3) constraints, and three models are developed by using ordinal logistic regression. An additional model is built for ridesharing drivers. Results for passengers suggest that reasons for ridesharing, such as, sustainability, socializing, and travel cost, and motives for ridesharing, such as the payment method, passenger awards, and number of passengers, are among significant factors that affect passengers to rideshare. Security and driver experience may hinder participation in ridesharing services in academic institutes. The study concludes with a discussion for transportation planners and service providers for implementing successful ridesharing services.
Journal: Transportation Planning and Technology
Pages: 449-472
Issue: 5
Volume: 45
Year: 2022
Month: 07
X-DOI: 10.1080/03081060.2022.2122465
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2122465
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Handle: RePEc:taf:transp:v:45:y:2022:i:5:p:449-472
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# input file: GTPT_A_2115044_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Zhen Liu
Author-X-Name-First: Zhen
Author-X-Name-Last: Liu
Author-Name: Qingsong Ma
Author-X-Name-First: Qingsong
Author-X-Name-Last: Ma
Author-Name: Haichuan Tang
Author-X-Name-First: Haichuan
Author-X-Name-Last: Tang
Author-Name: Jiebo Li
Author-X-Name-First: Jiebo
Author-X-Name-Last: Li
Author-Name: Ping Wang
Author-X-Name-First: Ping
Author-X-Name-Last: Wang
Author-Name: Qing He
Author-X-Name-First: Qing
Author-X-Name-Last: He
Title: Forecasting estimated times of arrival of US freight trains
Abstract:
Due to various reasons, variabilities in freight train travel time may be significant, yielding considerable challenges to forecasting the estimated time of arrival (ETA). Based on historical railway ETA data, this study first analyzes the shared route, then converts the historical data information of a train into multiple time data points, and finally, builds a tree-based model selection framework using the random forest algorithm (RF) and a feature weighted K-nearest neighbor algorithm (FWKNN) to create a phased prediction model. In terms of time, we study the use of different algorithms to predict the ETA of freight trains at various locations on freight train routes. In this study, the proposed method was tested on the dataset of the 2021 The Institute for Operations Research and the Management Sciences (INFORMS) Railway Applications Section (RAS) problem solving competition and won 2nd place.
Journal: Transportation Planning and Technology
Pages: 427-448
Issue: 5
Volume: 45
Year: 2022
Month: 07
X-DOI: 10.1080/03081060.2022.2115044
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2115044
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Handle: RePEc:taf:transp:v:45:y:2022:i:5:p:427-448
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# input file: GTPT_A_2115043_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Moayad Shammut
Author-X-Name-First: Moayad
Author-X-Name-Last: Shammut
Author-Name: Muhammad Imran
Author-X-Name-First: Muhammad
Author-X-Name-Last: Imran
Author-Name: Faraz Hasan
Author-X-Name-First: Faraz
Author-X-Name-Last: Hasan
Title: Conceptualising the adoption of safer autonomous mobilities
Abstract:
The safety of autonomous vehicles (AVs) is considered a high-priority area that has yet to be fully understood and more comprehensively addressed to enable their large-scale adoption. The current literature lacks a cohesive conceptual framework for a holistic understanding of AVs implications. This paper develops a framework that conceptualises the safety impacts of AVs more holistically. Through the theoretical lens of a ‘mobilities’ paradigm, the conceptual framework encompasses four dimensions – social, political, technological, and economic mobilities – unveiling a range of hidden complexities and challenges in adopting AVs. It suggests that a successful transition towards safer AV systems would initially require greater understanding of how these four dimensions are interrelated, interdependent, and complex. The value of this framework is to enable policymakers, planners, and engineers to navigate the future of autonomous mobilities optimally.
Journal: Transportation Planning and Technology
Pages: 403-426
Issue: 5
Volume: 45
Year: 2022
Month: 07
X-DOI: 10.1080/03081060.2022.2115043
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2115043
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Handle: RePEc:taf:transp:v:45:y:2022:i:5:p:403-426
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# input file: GTPT_A_2136177_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Mutasem Alzoubaidi
Author-X-Name-First: Mutasem
Author-X-Name-Last: Alzoubaidi
Author-Name: Milan Zlatkovic
Author-X-Name-First: Milan
Author-X-Name-Last: Zlatkovic
Title: Operational assessment of continuous flow intersections in a connected vehicle environment
Abstract:
In this study, the operational performance of the joint deployment of Connected Vehicles (CVs) and Continuous Flow Intersections (CFIs) is evaluated in a simulation environment built using VISSIM. The operational effect of various Market Penetration Rates (MPRs) of CVs at full and partial CFIs is studied. CV communication protocols that help exchange vehicles’ and signal controllers’ latitude/longitude coordinates via the Vehicle-to-Infrastructure communications are developed, programmed in Python and deployed in the VISSIM’s models. Additionally, two-tailed t-tests were conducted to examine the statistical significance of the results. The findings indicate that the deployment of CV technology at CFIs improved the overall operational performance substantially for all the studied scenarios and performance measures. Specifically, travel times, delays and queue lengths were reduced by 65.3%, 29.2% and 57.8%, respectively, at the 100% MPR. It was found that higher MPRs would lead to greater operational benefits.
Journal: Transportation Planning and Technology
Pages: 524-543
Issue: 6
Volume: 45
Year: 2022
Month: 08
X-DOI: 10.1080/03081060.2022.2136177
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2136177
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Handle: RePEc:taf:transp:v:45:y:2022:i:6:p:524-543
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# input file: GTPT_A_2132947_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Hyuk-Jae Roh
Author-X-Name-First: Hyuk-Jae
Author-X-Name-Last: Roh
Title: A study on securing model usefulness through geographical scalability testing of winter weather model developed with big traffic data
Abstract:
Few previous studies have conducted spatial transferability of the winter traffic models’ parameters between homogeneous and heterogeneous road segments during the winter season. This research pursues the purpose of using traffic data collected from five WIM sites in Alberta, Canada. Winter traffic models are developed for one weigh-in-motion site, and the other four sites, each representing different traffic characteristics, are used to verify the spatial transferability of the developed model. This research aggregated the traffic data into three vehicle types to develop winter traffic models by associating traffic data with climatic information. This research has demonstrated that the winter traffic models developed for the roads serving one specific travel population can be transferred with high accuracy to homogeneous and heterogeneous road segments.
Journal: Transportation Planning and Technology
Pages: 473-497
Issue: 6
Volume: 45
Year: 2022
Month: 08
X-DOI: 10.1080/03081060.2022.2132947
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2132947
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Handle: RePEc:taf:transp:v:45:y:2022:i:6:p:473-497
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# input file: GTPT_A_2134128_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Zongyuan Wu
Author-X-Name-First: Zongyuan
Author-X-Name-Last: Wu
Author-Name: Ben Waterson
Author-X-Name-First: Ben
Author-X-Name-Last: Waterson
Author-Name: Bani Anvari
Author-X-Name-First: Bani
Author-X-Name-Last: Anvari
Title: Developing and evaluating a coordinated person-based signal control paradigm in a corridor network
Abstract:
Connected Vehicles (CVs) provide both vehicle trajectory data and occupancy information to the junction controller, which make person-based signal controls to be possible by realizing the importance of reducing person delay. This study presents a coordinated person-based signal control algorithm (C-PBC), which has extended a previously developed approach from isolated junctions to multiple junctions. C-PBC incorporates vehicle information that is outside the CV communication range from the adjacent junction. It also updates data inputs for signal optimization algorithms based on formulated different arrival vehicle trajectory situations and coordinated data supplement algorithms. The developed algorithm has been evaluated using simulation with benchmarking signal control methods under a variety of scenarios involving CV penetration rates and predictive horizons. The results indicate that C-PBC is able to significantly improve person delay reduction when compared with fixed time control and vehicle-based control using CV data in 100% CV penetration rate under saturated flow conditions.
Journal: Transportation Planning and Technology
Pages: 498-523
Issue: 6
Volume: 45
Year: 2022
Month: 08
X-DOI: 10.1080/03081060.2022.2134128
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2134128
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Handle: RePEc:taf:transp:v:45:y:2022:i:6:p:498-523
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# input file: GTPT_A_2147177_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Justin S. Chang
Author-X-Name-First: Justin S.
Author-X-Name-Last: Chang
Author-Name: Sunhwa Kim
Author-X-Name-First: Sunhwa
Author-X-Name-Last: Kim
Title: Node centrality of North Korean Railways
Abstract:
This study explored the node centrality of North Korean railways. The analysis was conducted based on the weighted network using the number of routes as the weight. Two node types, stations and municipalities, were considered, and three modified centrality measures, strength, betweenness, and closeness centrality, were applied. The municipality-based analysis supplied more reliable outcomes than the station-based approach, and identified Pyongyang, Gowon, and Manpo as the critical nodes. Node centrality just slightly changed when weights were differently assigned to passenger and freight services because most stations, except 17 passenger-only stations, handle passenger and goods services. The findings have two policy implications for unified Korean railways. First, the Donghae line is not less important than the Gyeongui line because the East Sea rail corridor passes through Gowon and can support international trade between Russia and reunified Korea. Second, Manpo should be the primary border station to China, being a more influential node than existing Sinuiju station.
Journal: Transportation Planning and Technology
Pages: 573-587
Issue: 7
Volume: 45
Year: 2022
Month: 10
X-DOI: 10.1080/03081060.2022.2147177
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2147177
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Handle: RePEc:taf:transp:v:45:y:2022:i:7:p:573-587
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# input file: GTPT_A_2134866_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Erik Almlöf
Author-X-Name-First: Erik
Author-X-Name-Last: Almlöf
Author-Name: Xiaoyun Zhao
Author-X-Name-First: Xiaoyun
Author-X-Name-Last: Zhao
Author-Name: Anna Pernestål
Author-X-Name-First: Anna
Author-X-Name-Last: Pernestål
Author-Name: Erik Jenelius
Author-X-Name-First: Erik
Author-X-Name-Last: Jenelius
Author-Name: Mikael Nybacka
Author-X-Name-First: Mikael
Author-X-Name-Last: Nybacka
Title: Frameworks for assessing societal impacts of automated driving technology
Abstract:
Numerous studies have studied the impacts of automated driving (AD) technology on e.g. accident rates or CO2 emissions using various frameworks. In this paper we present an overview of previous frameworks used for societal impacts and review their advantages and limitations. Additionally, we introduce the Total Impact Assessment (TIA) framework developed by the Swedish Transport Administration and use this framework to evaluate three scenarios for AD bus services in Stockholm. We conclude that the reviewed frameworks cover different aspects of AD technology, and that e.g. cybersecurity and biodiversity are areas largely neglected. Furthermore, most frameworks assume effects to be homogenous, when there may be large variation in e.g. perceived security. The TIA framework does not manage to include all societal aspects of AD technology, but has great benefits and manages to provide important insights of the societal impacts of AD technology, especially how effects may wary for different actors.
Journal: Transportation Planning and Technology
Pages: 545-572
Issue: 7
Volume: 45
Year: 2022
Month: 10
X-DOI: 10.1080/03081060.2022.2134866
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2134866
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Handle: RePEc:taf:transp:v:45:y:2022:i:7:p:545-572
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# input file: GTPT_A_2134127_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Ali Edrisi
Author-X-Name-First: Ali
Author-X-Name-Last: Edrisi
Author-Name: Houmaan Ganjipour
Author-X-Name-First: Houmaan
Author-X-Name-Last: Ganjipour
Title: Factors affecting intention and attitude toward sidewalk autonomous delivery robots among online shoppers
Abstract:
Sidewalk autonomous delivery robots (SADRs) are a new last-mile delivery service. The present study aims to identify the factors impacting the adoption of SADRs among Iranian online shoppers. To this end, based on consumer coproduction theory and technology readiness (TR), this paper combined individual factors, socialized factor, and risk factors. A total of 287 respondents were surveyed using an online questionnaire, and the partial least squares structural equation modelling (PLS-SEM) was employed to model the data. The modelling results revealed that attitude, innovativeness, and optimism had positive impacts on the intention of consumers to use delivery robots. Furthermore, optimism and environmental concern had a positive impact on attitude, while the need for human interaction, performance risk, and delivery risk had negative impacts. However, no significant relationship was found between innovativeness and attitude. The results of the present study provide important theoretical and practical suggestions to marketers and delivery service provides.
Journal: Transportation Planning and Technology
Pages: 588-609
Issue: 7
Volume: 45
Year: 2022
Month: 10
X-DOI: 10.1080/03081060.2022.2134127
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2134127
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Handle: RePEc:taf:transp:v:45:y:2022:i:7:p:588-609
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# input file: GTPT_A_2150858_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Megan M. Bruwer
Author-X-Name-First: Megan M.
Author-X-Name-Last: Bruwer
Author-Name: Ian Walker
Author-X-Name-First: Ian
Author-X-Name-Last: Walker
Author-Name: Simen J. Andersen
Author-X-Name-First: Simen J.
Author-X-Name-Last: Andersen
Title: The impact of probe sample bias on the accuracy of commercial floating car data speeds
Abstract:
Floating car data (FCD) reliability studies regularly report differences between FCD and benchmark speeds, called speed bias. Comparatively few studies consider factors causing speed bias. Various researchers have suggested, but not proven, that the sample of probes reporting FCD may result in FCD accuracy discrepancies between regions and sources. This paper defines a new FCD accuracy contributor – sample bias – and offers the first statistically motivated investigation of the impact that the FCD sample has on FCD accuracy, measured by speed bias. Evidence for sample bias is considered by observing how speed bias is impacted by region and FCD source. The magnitude of speed bias on freeways differed significantly between six cities in South Africa (p < .001) and between two commercial FCD sources (p = .046), from which it is inferred that sample bias does impact FCD speed bias. These findings inform the application of FCD for comparative studies and overall accuracy.
Journal: Transportation Planning and Technology
Pages: 611-628
Issue: 8
Volume: 45
Year: 2022
Month: 11
X-DOI: 10.1080/03081060.2022.2150858
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2150858
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Handle: RePEc:taf:transp:v:45:y:2022:i:8:p:611-628
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# input file: GTPT_A_2142588_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: I. Mariñas-Collado
Author-X-Name-First: I.
Author-X-Name-Last: Mariñas-Collado
Author-Name: A. E. Sipols
Author-X-Name-First: A. E.
Author-X-Name-Last: Sipols
Author-Name: M. T. Santos-Martín
Author-X-Name-First: M. T.
Author-X-Name-Last: Santos-Martín
Author-Name: E. Frutos-Bernal
Author-X-Name-First: E.
Author-X-Name-Last: Frutos-Bernal
Title: Forecasting using dynamic factor models with cluster structure at Barcelona subway stations
Abstract:
Dynamic factor models are a powerful technique for analysing vast volumes of data, more precisely, time series. However, the large volumes of data that come from public transport networks tend to have heterogeneity and a cluster structure. In this paper, Dynamic Factor Models with Cluster Structure (DFMCS) are used to forecast hourly entrances in the different stations of the Barcelona subway network. The main and most novel contribution lies in the use of clustering techniques to make an initial grouping of the behaviour of the elements belonging to the time series, in order to subsequently be able to predict future patterns.
Journal: Transportation Planning and Technology
Pages: 671-685
Issue: 8
Volume: 45
Year: 2022
Month: 11
X-DOI: 10.1080/03081060.2022.2142588
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2142588
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Handle: RePEc:taf:transp:v:45:y:2022:i:8:p:671-685
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# input file: GTPT_A_2150622_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: N. G. Harris
Author-X-Name-First: N. G.
Author-X-Name-Last: Harris
Author-Name: A. Barron
Author-X-Name-First: A.
Author-X-Name-Last: Barron
Author-Name: J. Ehizele
Author-X-Name-First: J.
Author-X-Name-Last: Ehizele
Title: Understanding the variability in station stop times
Abstract:
The understanding and management of station stops continues to be a key issue in the operation of urban railways. Further to the recent re-working of an international dataset to provide global estimates of passenger alighting and boarding rates, this paper disaggregates these by type of railway and geographical context. These disaggregations demonstrate interesting variations reflecting plausible hypotheses about differences in passenger flow resulting from local circumstances and present a range of data for use by other researchers. Nevertheless, the preferred models generally demonstrate passenger alighting rates to be most significantly affected by the number of alighters, vestibule load/capacity and the number of doors per carriage, while the most statistically significant variables determining passenger boarding rates are the number of boarders, the vestibule load (passengers who neither alight nor board), platform width and vestibule size.
Journal: Transportation Planning and Technology
Pages: 643-670
Issue: 8
Volume: 45
Year: 2022
Month: 11
X-DOI: 10.1080/03081060.2022.2150622
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2150622
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Handle: RePEc:taf:transp:v:45:y:2022:i:8:p:643-670
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# input file: GTPT_A_2132948_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20220907T060133 git hash: 85d61bd949
Author-Name: Suraj Ghosh
Author-X-Name-First: Suraj
Author-X-Name-Last: Ghosh
Author-Name: Biplab Sarkar
Author-X-Name-First: Biplab
Author-X-Name-Last: Sarkar
Title: Examining the cost-effectiveness of electric vehicle policy in India
Abstract:
Deployment of electric vehicles (EVs) is being widely used by governments across the world as a policy tool to mitigate the catastrophic effects of global warming and climate change. However, the demand for EVs has been slow in many large automotive markets, including India. To increase the uptake of EVs in India, the central government has introduced a new consumer incentive program and a special tax rate for EVs. In this paper, we estimate the cost-effectiveness of these EV promotion programs in achieving CO2 emission reduction for each State in India. We use emission data of the chosen vehicle and CO2 emission intensity data of each State’s power grid for computation. The results are then compared to other benchmark investments in climate change mitigation. The findings indicate that subsidizing EVs may not be the most cost-efficient method to achieve CO2 reduction.
Journal: Transportation Planning and Technology
Pages: 629-642
Issue: 8
Volume: 45
Year: 2022
Month: 11
X-DOI: 10.1080/03081060.2022.2132948
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2132948
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Handle: RePEc:taf:transp:v:45:y:2022:i:8:p:629-642
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# input file: GTPT_A_2162052_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Elias K. Xidias
Author-X-Name-First: Elias K.
Author-X-Name-Last: Xidias
Author-Name: Ilias E. Panagiotopoulos
Author-X-Name-First: Ilias E.
Author-X-Name-Last: Panagiotopoulos
Author-Name: Paraskevi Th. Zacharia
Author-X-Name-First: Paraskevi Th.
Author-X-Name-Last: Zacharia
Title: An intelligent management system for relocating semi-autonomous shared vehicles
Abstract:
Car sharing services with Semi-Autonomous Electric Vehicles (SAEVs) represent an emerging transportation scheme which may comprise an important link in the green mobility chain for smart city operations. The main goal of the present paper is to introduce and develop an intelligent management system for the efficient relocation of SAEVs within the urban car-sharing context. A novel relocation strategy is analyzed regarding the upcoming technology of platooning. Considering real urban road networks for SAEVs, routing decisions are assessed based on the traffic conditions and energy efficiency. Fuzzy logic concepts are incorporated into the proposed system to simulate the uncertainty related to the roads’ traffic conditions. The problem addressed in this work is a constrained optimization problem. Solutions to the addressed problem are yielded using a Genetic Algorithm (GA) in accordance with the fuzzy logic module. Simulated experiments over the city of Patras (Greece) show the efficiency of the developed approach.
Journal: Transportation Planning and Technology
Pages: 93-118
Issue: 1
Volume: 46
Year: 2023
Month: 01
X-DOI: 10.1080/03081060.2022.2162052
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2162052
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Handle: RePEc:taf:transp:v:46:y:2023:i:1:p:93-118
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# input file: GTPT_A_2159407_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Amor Ariza-Álvarez
Author-X-Name-First: Amor
Author-X-Name-Last: Ariza-Álvarez
Author-Name: M. Eugenia López-Lambas
Author-X-Name-First: M. Eugenia
Author-X-Name-Last: López-Lambas
Author-Name: Julio A. Soria-Lara
Author-X-Name-First: Julio A.
Author-X-Name-Last: Soria-Lara
Title: Analysing the acceptance of autonomous buses in real-life traffic environments: pilot project with tourists in Malaga, Spain
Abstract:
Despite the significant technological progress with Autonomous Buses (ABs), there is still a limited understanding how users perceive and experience large, mass transit ABs in real-life traffic environments. This paper follows a pilot project on AB use by tourists in the city of Malaga, Spain. Discrete choice analysis was employed to study their willingness to use the AB and the passengers’ actual satisfaction on board the AB. The obtained results reveal higher willingness levels to adopt ABs among individuals more open to new technologies and more environmentally conscious. Higher levels of satisfaction on board are reported by older passengers, women, employed, private vehicle users, and people with environmental consciousness and openness to new technologies. Finally, the research discusses how socio-demographics and personality-related barriers affect the further implementation of autonomous mobility in public transportation systems, adding new reflections on the capacity of ABs to support or even replace conventional buses.
Journal: Transportation Planning and Technology
Pages: 71-92
Issue: 1
Volume: 46
Year: 2023
Month: 01
X-DOI: 10.1080/03081060.2022.2159407
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2159407
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Handle: RePEc:taf:transp:v:46:y:2023:i:1:p:71-92
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# input file: GTPT_A_2160718_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Roya Etminani-Ghasrodashti
Author-X-Name-First: Roya
Author-X-Name-Last: Etminani-Ghasrodashti
Author-Name: Greg Hladik
Author-X-Name-First: Greg
Author-X-Name-Last: Hladik
Author-Name: Sharareh Kermanshachi
Author-X-Name-First: Sharareh
Author-X-Name-Last: Kermanshachi
Author-Name: Jay Michael Rosenberger
Author-X-Name-First: Jay Michael
Author-X-Name-Last: Rosenberger
Author-Name: Muhammad Arif Khan
Author-X-Name-First: Muhammad
Author-X-Name-Last: Arif Khan
Author-Name: Ann Foss
Author-X-Name-First: Ann
Author-X-Name-Last: Foss
Title: Exploring shared travel behavior of university students
Abstract:
This study aims to identify young adults’ travel behavior using ridesharing services. We analyze data from an online survey of university students, regarding three free ridesharing services, including fixed-route, on-demand, and shared autonomous vehicles (SAVs). Ordinal regression and structural equation model (SEM) are employed to explore the frequency of service usage. Results indicate that most students had never taken a ride by available ridesharing services due to their preferences for using private vehicles and lack of service information. Regression results reveal that individuals’ usual mode of transportation and residential location significantly influence ridesharing behavior. Our results also show significant associations between travel attitudes and students’ travel behavior. We also found that shared on-demand and autonomous vehicle services could complement fixed-route services. Further research is needed on the link between young people's adoption of integrated ridesharing transportation services.
Journal: Transportation Planning and Technology
Pages: 22-44
Issue: 1
Volume: 46
Year: 2023
Month: 01
X-DOI: 10.1080/03081060.2022.2160718
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2160718
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Handle: RePEc:taf:transp:v:46:y:2023:i:1:p:22-44
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# input file: GTPT_A_2162518_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Matthias N. Sweet
Author-X-Name-First: Matthias N.
Author-X-Name-Last: Sweet
Author-Name: Darren M. Scott
Author-X-Name-First: Darren M.
Author-X-Name-Last: Scott
Author-Name: Samira Hamiditehrani
Author-X-Name-First: Samira
Author-X-Name-Last: Hamiditehrani
Title: Who will adopt private automated vehicles and automated shuttle buses? Testing the roles of past experience and performance expectancy
Abstract:
To better plan for potential impacts of automated vehicles (AV), this study investigates the effects of performance expectancy and experience, based on the Unified Theory of the Acceptance and Use of Technology (UTAUT), on willingness to pay for private automated vehicles (PAVs) and intention to use an automated shuttle bus. Using survey data (N = 2658) from Southern Ontario, Canada, experience is separated into two constructs: experience with partially automated vehicles and experience with public transit. Results indicate that the impacts of performance expectancy are strongest, that AV experience and transit experience impact PAV adoption, but that transit experience is only linked with intention to use an automated shuttle bus. Findings paint a complex picture of the application of common technology adoption models to transportation planning, as the notion of ‘experience’ is multi-dimensional and suggests complex pathways towards shifting from existing mobility options towards new alternatives, such as PAVs and shuttle buses.
Journal: Transportation Planning and Technology
Pages: 45-70
Issue: 1
Volume: 46
Year: 2023
Month: 01
X-DOI: 10.1080/03081060.2022.2162518
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2162518
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Handle: RePEc:taf:transp:v:46:y:2023:i:1:p:45-70
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# input file: GTPT_A_2160453_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Shaojie Liu
Author-X-Name-First: Shaojie
Author-X-Name-Last: Liu
Author-Name: Wei (David) Fan
Author-X-Name-First: Wei (David)
Author-X-Name-Last: Fan
Title: A simulation study on the traffic delay and fuel consumption of connected and autonomous vehicles in superstreet with platooning, signal optimization, and trajectory planning
Abstract:
Connected and Autonomous Vehicles (CAVs) are a promising technology that is ready to be deployed in the near future to improve the traffic efficiency and safety as well as environment. Extensive studies have been done to investigate the potential performance of CAVs on freeways, at roundabouts, and conventional intersections. Nevertheless, innovative intersections, as an important component of today’s transportation infrastructure, have been seldom investigated in relation to the performance of CAVs. Hence, this research is designed to examine how CAV technologies can influence the performance of a superstreet, one of the popular innovative intersection designs. In this research, the car-following model, platooning, trajectory planning, and adaptive signal control are specified for CAVs and signal controllers in a superstreet. An equivalent conventional intersection with the same lane configurations is also constructed in the simulation environment to make a fair comparison and gain important insights. More importantly, the findings from this research may provide references for studies on other innovative intersections which share similar design characteristics.
Journal: Transportation Planning and Technology
Pages: 119-144
Issue: 1
Volume: 46
Year: 2023
Month: 01
X-DOI: 10.1080/03081060.2022.2160453
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2160453
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Handle: RePEc:taf:transp:v:46:y:2023:i:1:p:119-144
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# input file: GTPT_A_2152454_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Lixun Liu
Author-X-Name-First: Lixun
Author-X-Name-Last: Liu
Author-Name: Adam Dennett
Author-X-Name-First: Adam
Author-X-Name-Last: Dennett
Author-Name: Robin Hickman
Author-X-Name-First: Robin
Author-X-Name-Last: Hickman
Title: Social equity impacts of rail transit investments using community perceptions: evidence from Chongqing
Abstract:
Urban transit systems have differential impacts across population groups, including the perceptions of impacts. Nevertheless, the evaluation of difference in perceived benefits of transport investment is under researched, and few attempts have been made to quantify the extent to which transport provision meets users’ requirements. This paper explores how the impact of rail transit on development and regeneration differs across different income groups and migrants, assessing equity dimensions that arise through surveys on residents’ perceptions, using evidence from Chongqing, China. The analysis utilises both MANOVA and discriminant analysis. The result shows that the lowest income group perceives they benefit least from the rail transit impacts, while the highest income group perceives they benefit most. There is a significant unequal perceived benefit distribution between migrants and local residents within the low-income groups. Reflections are made on policies and planning interventions which might be introduced to achieve greater social equity in impacts.
Journal: Transportation Planning and Technology
Pages: 1-21
Issue: 1
Volume: 46
Year: 2023
Month: 01
X-DOI: 10.1080/03081060.2022.2152454
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2152454
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Handle: RePEc:taf:transp:v:46:y:2023:i:1:p:1-21
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# input file: GTPT_A_2166509_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Cem Ersöz
Author-X-Name-First: Cem
Author-X-Name-Last: Ersöz
Author-Name: Filiz Karaman
Author-X-Name-First: Filiz
Author-X-Name-Last: Karaman
Title: Centrality and connectivity analysis of the European airports: a weighted complex network approach
Abstract:
This study aims to reveal the structure of the European Airport Network (EAN) using concepts from complex network theory by utilising 2019 passenger data collected from Eurostat. Initially, the EAN was explored by computing connectivity and centrality measures and their correlations. The community structure of the EAN was also examined by modularity maximisation using the relatively new Leiden algorithm. When the network was compared with simulated models, it was observed that the EAN had small-world and scale-free properties. To measure the hub performance of the airports, their binary betweenness centrality was compared with a weighted betweenness measure employing the ratio of geographical distance to passenger traffic between the nodes. A significant difference was observed between the two centrality measures.
Journal: Transportation Planning and Technology
Pages: 200-223
Issue: 2
Volume: 46
Year: 2023
Month: 02
X-DOI: 10.1080/03081060.2023.2166509
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2166509
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Handle: RePEc:taf:transp:v:46:y:2023:i:2:p:200-223
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# input file: GTPT_A_2176308_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Tianjia Yang
Author-X-Name-First: Tianjia
Author-X-Name-Last: Yang
Author-Name: Wei (David) Fan
Author-X-Name-First: Wei (David)
Author-X-Name-Last: Fan
Title: Evaluation of transit signal priority at signalized intersections under connected vehicle environment
Abstract:
Conventional transit signal priority (TSP) control strategies generally have negative impacts on other traffic. In this study, two typical signal control strategies under connected vehicle (CV) environment that give priority to transit vehicles at signalized intersections are investigated, i.e. actuated TSP with CV and optimized TSP with CV. The optimization algorithm used in this study is genetic algorithm (GA) and the goal of the optimization is to minimize the total person delay. A real-world intersection is modeled in a microsimulation environment to evaluate the performance. The results are compared with fully actuated signal control strategies with and without TSP. Results show that the proposed optimization control strategy can reduce the average bus delay by 24.5% during peak hours while minimizing the negative impacts on conflicting traffic. Under the low traffic demand condition, the actuated controller with TSP using CV has a better performance in terms of average delay.
Journal: Transportation Planning and Technology
Pages: 145-159
Issue: 2
Volume: 46
Year: 2023
Month: 02
X-DOI: 10.1080/03081060.2023.2176308
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2176308
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Handle: RePEc:taf:transp:v:46:y:2023:i:2:p:145-159
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# input file: GTPT_A_2166508_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Hossein Moradi
Author-X-Name-First: Hossein
Author-X-Name-Last: Moradi
Author-Name: Sara Sasaninejad
Author-X-Name-First: Sara
Author-X-Name-Last: Sasaninejad
Author-Name: Sabine Wittevrongel
Author-X-Name-First: Sabine
Author-X-Name-Last: Wittevrongel
Author-Name: Joris Walraevens
Author-X-Name-First: Joris
Author-X-Name-Last: Walraevens
Title: Dynamically estimating saturation flow rate at signalized intersections: a data-driven technique
Abstract:
Connected Vehicles (CVs) could enhance traffic management systems by providing detailed and real-time information. Theoretically, such information can be exploited for the provision of efficient movement of traffic, especially at intersections identified as the bottlenecks of traffic systems. Aimed at the same purpose, this paper uses information of CVs to estimate the Saturation Flow Rate (SFR), particularly in the transition period during which CVs and conventional vehicles will coexist. To this end, we retain the advantages of data-driven techniques to capture the underlying dynamics of the SFR by considering information of CVs as the only input. In this regard, we correlate the dynamic variations of the SFR to the mutual interactions among the contributing parameters extracted from the limited pieces of CVs’ information using a neural network. Comprehensive simulations under precisely designed settings in VISSIM show a hoped-for SFR estimation accuracy level, which can further augment intelligent intersection controller initiatives.
Journal: Transportation Planning and Technology
Pages: 160-181
Issue: 2
Volume: 46
Year: 2023
Month: 02
X-DOI: 10.1080/03081060.2023.2166508
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2166508
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Handle: RePEc:taf:transp:v:46:y:2023:i:2:p:160-181
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# input file: GTPT_A_2175829_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Chun-Ying Chen
Author-X-Name-First: Chun-Ying
Author-X-Name-Last: Chen
Author-Name: Shangyao Yan
Author-X-Name-First: Shangyao
Author-X-Name-Last: Yan
Author-Name: Yu-Sian Cheng
Author-X-Name-First: Yu-Sian
Author-X-Name-Last: Cheng
Title: Aviation police manpower supply planning under stochastic demands for airport security inspection duties
Abstract:
With the increasing number of passengers moving through airports worldwide, security inspection duty arrangements are becoming more and more important, and planning more and more difficult. To design a good aviation police manpower supply plan, the planner not only has to consider operating costs but also the variation and uncertainty of manpower demands encountered in actual operations. This study adopts mathematical programming techniques to construct a stochastic aviation police manpower supply model for airport security inspection duties. The mathematical programming software CPLEX is used to solve the model directly. The effectiveness of the proposed model is evaluated in a case study performed using the relevant data collected from the Taiwan Aviation Police Bureau with some reasonable assumptions. Different strategies are tested. The results demonstrate that the proposed model could be a useful and practical planning support tool for decision-makers.
Journal: Transportation Planning and Technology
Pages: 224-240
Issue: 2
Volume: 46
Year: 2023
Month: 02
X-DOI: 10.1080/03081060.2023.2175829
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2175829
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Handle: RePEc:taf:transp:v:46:y:2023:i:2:p:224-240
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# input file: GTPT_A_2164581_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Dohoon Kim
Author-X-Name-First: Dohoon
Author-X-Name-Last: Kim
Author-Name: Eungcheol Kim
Author-X-Name-First: Eungcheol
Author-X-Name-Last: Kim
Title: Development of LSTM-MLR hybrid model for radar detector missing and outlier traffic volume correction
Abstract:
Traffic volume data collected by radar detector contain inherent types of errors that are hard to observe. Therefore, the identification of missing data and outliers based on reliable verification volume data is essential, and the development of a methodology for correcting detector traffic data while considering various specificities at the detector installation sites is required. This study proposed a deep-learning-based long short-term memory–multiple linear regression (LSTM–MLR) hybrid model. First, the corrected detector traffic volume was calculated via the MLR model after the preprocessing of the missing and outlier detector traffic volumes. Second, the corrected radar detector traffic volume was learned via the LSTM model to predict the detector traffic volume for the target time periods. The results confirmed a correction effect in terms of radar detector traffic volume data at most of the 30 target sites. The results of this study provide three contributions. First, the missing and outlier traffic volume correction algorithm is easy to apply and can be applied to traffic volume data collected from various detectors. Second, the MLR model developed in this study derived a causal relationship between the traffic volume of the detector and the complex factors that could not reveal the obvious cause, such as the undetected small car driving next to a large vehicle and the radio transmission/reception problem. Third, complex neural networks and dropout techniques to avoid overfitting do not necessarily improve prediction accuracy.
Journal: Transportation Planning and Technology
Pages: 182-199
Issue: 2
Volume: 46
Year: 2023
Month: 02
X-DOI: 10.1080/03081060.2022.2164581
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2164581
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Handle: RePEc:taf:transp:v:46:y:2023:i:2:p:182-199
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# input file: GTPT_A_2162053_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Jieya Yang
Author-X-Name-First: Jieya
Author-X-Name-Last: Yang
Author-Name: Linoj Vijayan
Author-X-Name-First: Linoj
Author-X-Name-Last: Vijayan
Author-Name: Mahyar Ghorbanzadeh
Author-X-Name-First: Mahyar
Author-X-Name-Last: Ghorbanzadeh
Author-Name: Onur Alisan
Author-X-Name-First: Onur
Author-X-Name-Last: Alisan
Author-Name: Eren Erman Ozguven
Author-X-Name-First: Eren Erman
Author-X-Name-Last: Ozguven
Author-Name: Wenrui Huang
Author-X-Name-First: Wenrui
Author-X-Name-Last: Huang
Author-Name: Simone Burns
Author-X-Name-First: Simone
Author-X-Name-Last: Burns
Title: Integrating storm surge modeling and accessibility analysis for planning of special-needs hurricane shelters in Panama City, Florida
Abstract:
We investigated the transportation accessibility of special needs populations to Special Needs Shelters (SpNS) by incorporating storm surge modeling into hurricane shelter planning in Panama City, a medium-sized city located close to the landfall location of Hurricane Michael. The storm surge model validated for Hurricane Michael was used to predict the coastal inundation. Using this model, A Geographical Information Systems (GIS)-based optimization methodology was developed for evaluating the accessibility to special needs shelters and repurposing existing regular hurricane shelters for special needs populations. With the proposed optimization approach, the average travel time per person-trip decreased from 28.5 minutes to 7.4 minutes after repurposing one regular shelter and to 4.3 minutes when three regular shelters converted to SpNS. Emergency plans can be improved by the proposed methodology, which can estimate the inundation zones by storm surge modeling and allocate the emerging shelter demand by accessibility analysis and location modeling.
Journal: Transportation Planning and Technology
Pages: 241-261
Issue: 2
Volume: 46
Year: 2023
Month: 02
X-DOI: 10.1080/03081060.2022.2162053
File-URL: http://hdl.handle.net/10.1080/03081060.2022.2162053
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:2:p:241-261
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# input file: GTPT_A_2182784_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: H. Zhou
Author-X-Name-First: H.
Author-X-Name-Last: Zhou
Author-Name: J. L. Dorsman
Author-X-Name-First: J. L.
Author-X-Name-Last: Dorsman
Author-Name: M. Mandjes
Author-X-Name-First: M.
Author-X-Name-Last: Mandjes
Author-Name: M. Snelder
Author-X-Name-First: M.
Author-X-Name-Last: Snelder
Title: On the use of common random numbers in activity-based travel demand modeling for scenario comparison
Abstract:
Activity-based travel demand models provide a high level of detail when modeling complex travel behavior. Since stochastic simulation is used, however, this high level may induce large random fluctuations in the output, necessitating many model reruns to produce reliable output. This may become prohibitive in terms of computation time when comparing travel behavior between multiple scenarios, in which case each scenario requires its own simulation. To alleviate this issue, we study the use of common random numbers, which is a technique that reuses the same random numbers for choices made by travelers between scenarios. This ensures that any observed difference in output across scenarios cannot be attributed to mutual differences in drawn random numbers, eliminating an important source of random fluctuation. We demonstrate by a numerical study that common random numbers can greatly reduce the number of runs needed, and thus also the required computation time, to obtain reliable output.
Journal: Transportation Planning and Technology
Pages: 359-379
Issue: 3
Volume: 46
Year: 2023
Month: 04
X-DOI: 10.1080/03081060.2023.2182784
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2182784
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:3:p:359-379
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2182785_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Li Song
Author-X-Name-First: Li
Author-X-Name-Last: Song
Author-Name: Wei (David) Fan
Author-X-Name-First: Wei (David)
Author-X-Name-Last: Fan
Title: Intersection capacity adjustments considering different market penetration rates of connected and automated vehicles
Abstract:
To better prepare and guide both intersection planning and operations under different market penetration rates (MPRs) of connected and autonomous vehicles (CAVs) and traffic demands, this research estimates both the lane-level and intersection-level capacity. On the lane-level, adjustment factors for saturation headway and saturation traffic flow rate for each lane under different MPRs of CAVs are investigated. On the intersection-level, the maximum throughput function for different MPRs of CAVs is calibrated. With 100% CAVs, the saturation headways for the exclusive through lane, exclusive left-turn lane, and shared-right-and-through lane decrease by 55.8%, 48.9%, and 42.4%, respectively. The maximum throughput of the intersection with 100% CAVs increases by 70% compared to the scenario with only human driving vehicles (HDVs). Moreover, the maximum throughput increases rapidly after 60% MPRs of CAVs. The research could provide a solid reference for traffic engineers and planners in calculating the intersection capacity under different MPRs of CAVs.
Journal: Transportation Planning and Technology
Pages: 286-303
Issue: 3
Volume: 46
Year: 2023
Month: 04
X-DOI: 10.1080/03081060.2023.2182785
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2182785
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:3:p:286-303
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# input file: GTPT_A_2188215_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Yin-Yann Chen
Author-X-Name-First: Yin-Yann
Author-X-Name-Last: Chen
Author-Name: Tzu-Li Chen
Author-X-Name-First: Tzu-Li
Author-X-Name-Last: Chen
Author-Name: Chun-Chih Chiu
Author-X-Name-First: Chun-Chih
Author-X-Name-Last: Chiu
Author-Name: Yi-Jia Wu
Author-X-Name-First: Yi-Jia
Author-X-Name-Last: Wu
Title: A multi-trip vehicle routing problem considering time windows and limited duration under a heterogeneous fleet and parking constraints in cold supply chain logistics
Abstract:
Cold supply chain distribution systems ensure the freshness of temperature-sensitive products during transportation. In this study, we investigated a fresh food company’s cold supply chain distribution. Making fresh food available and achieving quality and safety, requires proper planning of vehicle routing, we addressed a routing problem that simultaneously considers time windows, multiple trips per vehicle, a heterogeneous fleet, parking constraints, unloading time at customer position, and limited duration, minimizing related operational costs. We formulate this problem as a mixed-integer programming model. Since this problem is NP-hard, we also propose a genetic algorithm with two adaptive-parameter mechanisms to solve it within a reasonable computational time. Extensive experiments were conducted to assess the performance of different approaches in a real-world application. The results demonstrate that the algorithms are robust and efficient. The proposed algorithms can reduce operational costs by more than 20% compared to the current practical planning approach.
Journal: Transportation Planning and Technology
Pages: 335-358
Issue: 3
Volume: 46
Year: 2023
Month: 04
X-DOI: 10.1080/03081060.2023.2188215
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2188215
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:3:p:335-358
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# input file: GTPT_A_2184818_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Chuanxu Wang
Author-X-Name-First: Chuanxu
Author-X-Name-Last: Wang
Author-Name: Longjia Li
Author-X-Name-First: Longjia
Author-X-Name-Last: Li
Title: A two-phase model for sustainable location of dry ports: a case of Ningbo-Zhoushan Port in China
Abstract:
This paper proposes a two-stage model for determining the sustainable location of dry ports. In the first stage, a Multi-Criteria Decision Making (MCDM) model containing nine criteria is developed. The weight of criteria is determined by the stepwise weight assessment ratio analysis (SWARA) method, and then the ranking of alternative cities is determined by the weighted aggregated sum product assessment (WASPAS) method. In the second stage, a mixed-integer linear programming location model with multiple capacity levels is proposed to determine the final optimal cities for the dry ports by minimizing the relevant economic costs, environmental costs and social responsibility costs. A case study of Ningbo-Zhoushan Port is performed to verify the effectiveness of the proposed model. The results show that: (1) the total cost of the optimized inland transportation network system is reduced by 49.661% compared with that before the optimization, with Suzhou, Chongqing, Chengdu, Wuhan, Changsha, Wuxi and Hefei identified as the optimal locations for the dry ports; and (2) shippers close to seaports tend to choose road transportation, while shippers far away from seaports tend to choose rail transportation through dry ports.
Journal: Transportation Planning and Technology
Pages: 304-334
Issue: 3
Volume: 46
Year: 2023
Month: 04
X-DOI: 10.1080/03081060.2023.2184818
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2184818
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:3:p:304-334
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# input file: GTPT_A_2166510_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Jie Bao
Author-X-Name-First: Jie
Author-X-Name-Last: Bao
Author-Name: Zongbo Wang
Author-X-Name-First: Zongbo
Author-X-Name-Last: Wang
Author-Name: Zhao Yang
Author-X-Name-First: Zhao
Author-X-Name-Last: Yang
Author-Name: Xiaoxuan Shan
Author-X-Name-First: Xiaoxuan
Author-X-Name-Last: Shan
Title: Exploring spatiotemporal patterns and influencing factors of ridesourcing and traditional taxi usage using geographically and temporally weighted regression method
Abstract:
The rivalry between ridesourcing and the traditional taxi has posed great challenges to traffic management authorities. Understanding the spatial patterns and influencing factors of their usage can help traffic authorities develop insightful policies and strategies to coordinate the operations of the two services better. This study develops a novel geographically and temporally weighted regression model (GTWR) to unravel the spatiotemporal patterns and influencing factors of the two services based on a high-resolution GPS dataset. The developed GTWR model achieves greater performance than other traditional methods. The results reveal that the spatiotemporal impacts of influencing factors on the usage of ridesourcing are quite different from that of traditional taxi. The spatiotemporal distribution and evolution of the coefficients are further discussed. The findings of the study could help traffic management authorities develop efficient regulatory policies to enhance the operations of the two services in specific areas and periods.
Journal: Transportation Planning and Technology
Pages: 263-285
Issue: 3
Volume: 46
Year: 2023
Month: 04
X-DOI: 10.1080/03081060.2023.2166510
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2166510
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:3:p:263-285
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# input file: GTPT_A_2201595_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Adheesh Kumar Vivek
Author-X-Name-First: Adheesh Kumar
Author-X-Name-Last: Vivek
Author-Name: Smruti Sourava Mohapatra
Author-X-Name-First: Smruti Sourava
Author-X-Name-Last: Mohapatra
Title: Level of service analysis of rail road grade crossing from the perspective of walking and bicycling: a perception based study
Abstract:
This article suggests reliable pedestrian level of service (PLOS) and bicycle level of service (BLOS) models by analyzing the effects of various factors to define perceived PLOS and BLOS criteria at rail road grade crossing (RRGC). Questionnaire survey was carried out near 21 RRGCs across nine Indian states, and 2272 responses were obtained from the survey. Ordered probit models were developed to investigate the impact of variables over PLOS and BLOS. The models result illustrate that inflating certain variable (age, trip type, gate blocking phase, distance between gates and presence of heavy vehicles) degrade perceived PLOS and BLOS. However, enhancing the road surface quality at grade crossing, lateral visibility, road marking & warning sign and aesthetics have a favorable impact on perceived PLOS and BLOS. Thus, the developed models and policy regulations suggested in this research would be useful to improve the service quality level for pedestrians and bicyclists.
Journal: Transportation Planning and Technology
Pages: 499-524
Issue: 4
Volume: 46
Year: 2023
Month: 05
X-DOI: 10.1080/03081060.2023.2201595
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2201595
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:4:p:499-524
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# input file: GTPT_A_2201907_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: The Editors
Title: Correction
Journal: Transportation Planning and Technology
Pages: 525-525
Issue: 4
Volume: 46
Year: 2023
Month: 05
X-DOI: 10.1080/03081060.2023.2201907
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2201907
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Handle: RePEc:taf:transp:v:46:y:2023:i:4:p:525-525
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# input file: GTPT_A_2192195_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Alejandro Ortega
Author-X-Name-First: Alejandro
Author-X-Name-Last: Ortega
Author-Name: Gary Haq
Author-X-Name-First: Gary
Author-X-Name-Last: Haq
Author-Name: Anastasios Tsakalidis
Author-X-Name-First: Anastasios
Author-X-Name-Last: Tsakalidis
Title: Carsharing in Europe: a critical review of policy, research, innovation, and practice
Abstract:
Carsharing is often included in packages of measures to encourage a more sustainable mobility. In this paper we determine the key trends and challenges in European carsharing research and innovation. We assess the status and future potential of European carsharing and identify additional research needs. The results show a steady increase in European funding to support urban carsharing projects. This is true for projects studying Information Technology development (i.e. Apps, websites, connected cars, etc). City authorities should conduct an ex-ante analysis before implementing carsharing schemes to ensure it is coordinated with public transport. Monitoring is crucial since carsharing services should contribute to reducing the overall environmental impact of the transport system. City authorities and private providers should collaborate to provide sustainable carsharing schemes that facilitate multimodal travel, lower greenhouse gas emissions, improve urban air quality and provides accessible mobility for all.
Journal: Transportation Planning and Technology
Pages: 381-406
Issue: 4
Volume: 46
Year: 2023
Month: 05
X-DOI: 10.1080/03081060.2023.2192195
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2192195
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:4:p:381-406
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2194875_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Feiyu Feng
Author-X-Name-First: Feiyu
Author-X-Name-Last: Feng
Author-Name: Xinghua Li
Author-X-Name-First: Xinghua
Author-X-Name-Last: Li
Author-Name: Yuntao Guo
Author-X-Name-First: Yuntao
Author-X-Name-Last: Guo
Author-Name: Cheng Cheng
Author-X-Name-First: Cheng
Author-X-Name-Last: Cheng
Title: Understanding factors that impact ridesourcing service usage frequency: a case study in Shanghai
Abstract:
This study investigates the influencing factors that impact ridesourcing service usage frequency and explore the potential similarities and differences among groups of population based on their primary usage purposes. A revealed-preference survey developed for this study was conducted among 783 ridesourcing service users from Shanghai, China in September 2020. Separate random parameters ordered probit models were estimated for users with different primary purposes of usage to capture unobserved heterogeneity. The identified influencing factors include travelers’ sociodemographic characteristics, reasons to choose ridesourcing services, and other behavioral characteristics. In addition, the impacts of these contributing factors were different based on their primary usage purpose. The model estimation and descriptive statistics findings suggest that groups of ridesourcing service users may respond differently to various types of promotional strategies. The study insights may be used to design future strategies that can potentially improve the service usage frequency of existing users and attract new users.
Journal: Transportation Planning and Technology
Pages: 462-481
Issue: 4
Volume: 46
Year: 2023
Month: 05
X-DOI: 10.1080/03081060.2023.2194875
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2194875
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:4:p:462-481
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# input file: GTPT_A_2205399_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Wenming Zuo
Author-X-Name-First: Wenming
Author-X-Name-Last: Zuo
Author-Name: Xinxin Qiu
Author-X-Name-First: Xinxin
Author-X-Name-Last: Qiu
Author-Name: Shixin Li
Author-X-Name-First: Shixin
Author-X-Name-Last: Li
Author-Name: Xinming He
Author-X-Name-First: Xinming
Author-X-Name-Last: He
Title: Online ride-hailing regulation: a simulation study based on evolutionary game theory
Abstract:
Game theory contributes to the quantitative study of online ride-hailing regulations; however, prior game models of the online ride-hailing market fail to comprehensively consider government regulation strategies as well as multiple stakeholders in various regulation contexts. This study constructs two system dynamic models of evolutionary games among online ride-hailing platforms, drivers, and passengers. One is the basic model not subject to government regulations, while the other considers government regulations systematically regarding penalty policy, incentive policy, policy adaptability, and public participation. By solving and simulating the model, we study evolutionary stable strategies to control fluctuations in the game process. The results show that an unregulated online ride-hailing system is volatile, and government regulations help stabilize the system. The effect of government regulations can be optimized by adopting a dynamic penalty with a greater initial force, considering platforms as agents in incentive policy, improving policy adaptability, and rewarding public participation.
Journal: Transportation Planning and Technology
Pages: 437-461
Issue: 4
Volume: 46
Year: 2023
Month: 05
X-DOI: 10.1080/03081060.2023.2205399
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2205399
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:4:p:437-461
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# input file: GTPT_A_2194874_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Arjan de Ruijter
Author-X-Name-First: Arjan
Author-X-Name-Last: de Ruijter
Author-Name: Oded Cats
Author-X-Name-First: Oded
Author-X-Name-Last: Cats
Author-Name: Javier Alonso-Mora
Author-X-Name-First: Javier
Author-X-Name-Last: Alonso-Mora
Author-Name: Serge Hoogendoorn
Author-X-Name-First: Serge
Author-X-Name-Last: Hoogendoorn
Title: Ride-pooling adoption, efficiency and level of service under alternative demand, behavioural and pricing settings
Abstract:
Previous studies into the potential benefits of ride pooling failed to account for the trade-off that users likely make when considering a shared ride. We address this shortcoming by formulating user net benefit stemming from pooling as a compensatory function where the additional travel time and on-board discomfort need to be compensated by the price discount for a traveller to choose a pooled ride over a private ride. The proposed formulation is embedded in a method for matching travel requests and vehicles. We conduct a series of experiments investigating how the potential of ride-pooling services depends on demand characteristics, user preferences and the pricing policy adopted by the service provider. Our results suggest that the total vehicle mileage savings found by previous studies is only attainable when users are very willing to share their ride (i.e. attach low premium to private rides) and are offered a 50% discount for doing so.
Journal: Transportation Planning and Technology
Pages: 407-436
Issue: 4
Volume: 46
Year: 2023
Month: 05
X-DOI: 10.1080/03081060.2023.2194874
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2194874
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:4:p:407-436
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# input file: GTPT_A_2201280_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Majbah Uddin
Author-X-Name-First: Majbah
Author-X-Name-Last: Uddin
Author-Name: Ho-Ling Hwang
Author-X-Name-First: Ho-Ling
Author-X-Name-Last: Hwang
Author-Name: Md Sami Hasnine
Author-X-Name-First: Md Sami
Author-X-Name-Last: Hasnine
Title: An interpretable machine learning framework to understand bikeshare demand before and during the COVID-19 pandemic in New York City
Abstract:
In recent years, bikesharing systems have become increasingly popular as affordable and sustainable micromobility solutions. Advanced mathematical models such as machine learning are required to generate good forecasts for bikeshare demand. To this end, this study proposes a machine learning modeling framework to estimate hourly demand in a large-scale bikesharing system. Two Extreme Gradient Boosting models were developed: one using data from before the COVID-19 pandemic (March 2019 to February 2020) and the other using data from during the pandemic (March 2020 to February 2021). Furthermore, a model interpretation framework based on SHapley Additive exPlanations was implemented. Based on the relative importance of the explanatory variables considered in this study, share of female users and hour of day were the two most important explanatory variables in both models. However, the month variable had higher importance in the pandemic model than in the pre-pandemic model.
Journal: Transportation Planning and Technology
Pages: 482-498
Issue: 4
Volume: 46
Year: 2023
Month: 05
X-DOI: 10.1080/03081060.2023.2201280
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2201280
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:4:p:482-498
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# input file: GTPT_A_2198517_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Peter Fernandes Wanke
Author-X-Name-First: Peter Fernandes
Author-X-Name-Last: Wanke
Author-Name: Amir Karbassi Yazdi
Author-X-Name-First: Amir Karbassi
Author-X-Name-Last: Yazdi
Author-Name: Thomas Hanne
Author-X-Name-First: Thomas
Author-X-Name-Last: Hanne
Author-Name: Yong Tan
Author-X-Name-First: Yong
Author-X-Name-Last: Tan
Title: Unveiling drivers of sustainability in Chinese transport: an approach based on principal component analysis and neural networks
Abstract:
The paper analyzes the sustainability of the Chinese transportation sector by examining the relationship between energy consumption (and CO2 emissions), transportation modes, and macroeconomic variables. Principal Component Analysis (PCA) and Neural Networks (NN) are combined using monthly data from January 1999 to December 2017. Our goal is to propose a model that links China's transportation footprint to major macroeconomic factors while simultaneously controlling each mode of transportation. Inflation and credit policies exert relatively weak effects on the explained variable. In contrast, trade and fixed asset investments, as well as monetary and fiscal policies, show a positive and significant impact. The use of waterways and airways plays an imperative role in sustainable development compared to the use of roads.
Journal: Transportation Planning and Technology
Pages: 573-598
Issue: 5
Volume: 46
Year: 2023
Month: 07
X-DOI: 10.1080/03081060.2023.2198517
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2198517
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:5:p:573-598
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# input file: GTPT_A_2196987_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Sahand Asgarpour
Author-X-Name-First: Sahand
Author-X-Name-Last: Asgarpour
Author-Name: Andreas Hartmann
Author-X-Name-First: Andreas
Author-X-Name-Last: Hartmann
Author-Name: Konstantinos Gkiotsalitis
Author-X-Name-First: Konstantinos
Author-X-Name-Last: Gkiotsalitis
Title: Infrastructure investment planning through scenario-based system-of-systems modelling
Abstract:
The socioeconomic, technological, and environmental needs and developments call for effective infrastructure investment planning. Because infrastructures are interdependent, this requires the entanglement of their demand and performance development. We propose a scenario-based system-of-systems model to support strategic decision-makers in evaluating the effects of planned investments on transport infrastructure demand and performance under different plausible futures and identifying required investments across transport infrastructure sectors considering interdependencies. The model estimates freight and passenger demand and their consequent emission and energy performance for rail, road, and waterway networks. Through a case study, we show how the model can assist decision-makers in tracing the effects of silo-based planned investments on interconnected infrastructures. Moreover, the case demonstrates how possible investments can be detected to ensure desirable infrastructure performance. Finally, it presents how a better understanding can be created about the impacts of transport demand and energy transition policies on the performance of infrastructure system-of-systems.
Journal: Transportation Planning and Technology
Pages: 527-572
Issue: 5
Volume: 46
Year: 2023
Month: 07
X-DOI: 10.1080/03081060.2023.2196987
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2196987
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:5:p:527-572
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# input file: GTPT_A_2216193_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Siqing Wang
Author-X-Name-First: Siqing
Author-X-Name-Last: Wang
Author-Name: Jian Wang
Author-X-Name-First: Jian
Author-X-Name-Last: Wang
Author-Name: Xiaowei Hu
Author-X-Name-First: Xiaowei
Author-X-Name-Last: Hu
Title: Optimization of unsubsidized and subsidized customized bus services
Abstract:
This paper develops a model that considers both peak and off-peak demands. The optimal operating strategy is determined by maximizing the social welfare of unsubsidized and subsidized customized bus systems. Headway, fare, and fleet size are decision variables. Three plans are formulated for the subsidized case. Social welfare, fares, and actual demands for three plans at various subsidy levels are then compared. An improved particle swarm optimization (PSO) algorithm is designed by dynamically adjusting parameters in the update rule, combining the brainstorming algorithm mutation strategy. Results indicate that off-peak fares are consistently lower than peak fares. To attract a wide range of passengers, adopting a subsidy plan that partially compensates for operating costs is preferable. Furthermore, government subsidy programs help generate enhanced social benefits. The findings derived from numerical examples can be used as planning guides for customized bus systems.
Journal: Transportation Planning and Technology
Pages: 672-693
Issue: 5
Volume: 46
Year: 2023
Month: 07
X-DOI: 10.1080/03081060.2023.2216193
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2216193
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:5:p:672-693
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2213313_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Dilay Aktaş
Author-X-Name-First: Dilay
Author-X-Name-Last: Aktaş
Author-Name: Kenneth Sörensen
Author-X-Name-First: Kenneth
Author-X-Name-Last: Sörensen
Author-Name: Pieter Vansteenwegen
Author-X-Name-First: Pieter
Author-X-Name-Last: Vansteenwegen
Title: A variable neighborhood search algorithm for a public bus line with a demand-responsive operation during peak hours
Abstract:
In this study, we propose a variable neighborhood search (VNS) algorithm to optimize the performance of a single bus line during peak hours where the passenger flows in one direction are typically much larger than the flows in the opposite direction. The system we propose aims to increase the frequency of the service towards the city center during morning peak hours, by allowing some of the vehicles to perform short-cut trips away from the city center. Just before the morning peak hours and based on the expected demand, the VNS algorithm decides which buses should visit all the stops ahead or take a short-cut during its return trip. Experiments show that with the demand-responsive system, total passenger travel time improves about 10% on average for a real-size benchmark instance. The performance of the system is also analyzed under different fleet size and capacity, duration of peak hours, and demand scenarios.
Journal: Transportation Planning and Technology
Pages: 615-652
Issue: 5
Volume: 46
Year: 2023
Month: 07
X-DOI: 10.1080/03081060.2023.2213313
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2213313
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:5:p:615-652
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2214144_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Anas A. Mohammad
Author-X-Name-First: Anas A.
Author-X-Name-Last: Mohammad
Author-Name: Hazem M. Al Nawaiseh
Author-X-Name-First: Hazem M.
Author-X-Name-Last: Al Nawaiseh
Author-Name: Wael K. Alhajyaseen
Author-X-Name-First: Wael K.
Author-X-Name-Last: Alhajyaseen
Author-Name: Charitha Dias
Author-X-Name-First: Charitha
Author-X-Name-Last: Dias
Author-Name: Babak Mehran
Author-X-Name-First: Babak
Author-X-Name-Last: Mehran
Title: Lane-based analysis of the saturation flow rate considering traffic composition
Abstract:
Saturation flow rate (SFR) is an essential metric for estimating the capacities of signalized intersections. Many factors, including traffic composition, configuration and geometry of the intersection, and driver behavior, which is typically characterized by social and cultural norms, influence SFR. Most of the previous studies estimated the SFR and adjustment factor to be applied independently without considering the interaction impact between influencing factors. This study aims to empirically examine the influence of the number of lanes, the heavy vehicle proportions, and their interaction effect on the SFR of through movements. A new model was developed to magnify the HV Impact on SFR value considering the number of lanes at the upstream approach. The outcome of this study helps to improve the multiplicative model’s structure for SFRs adjustment factors. Adopting the outcome of this study by the responsible transport authority would optimize the road infrastructure provision.
Journal: Transportation Planning and Technology
Pages: 653-671
Issue: 5
Volume: 46
Year: 2023
Month: 07
X-DOI: 10.1080/03081060.2023.2214144
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2214144
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:5:p:653-671
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2203694_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Henrick J. Haule
Author-X-Name-First: Henrick J.
Author-X-Name-Last: Haule
Author-Name: Priyanka Alluri
Author-X-Name-First: Priyanka
Author-X-Name-Last: Alluri
Author-Name: Thobias Sando
Author-X-Name-First: Thobias
Author-X-Name-Last: Sando
Author-Name: Albert Gan
Author-X-Name-First: Albert
Author-X-Name-Last: Gan
Title: Analyzing the effectiveness of ramp metering in alleviating crash-related congestion on freeways
Abstract:
Ramp metering signals (RMSs) are usually activated to reduce recurrent congestion. Ramp metering could also minimize the non-recurrent congestion due to traffic incidents. While recurrent congestion depends on the time of day, non-recurrent congestion due to incidents depends on several other factors, including incident duration, lane blockage, and responding agencies. This study evaluated the impact of ramp metering on non-recurrent congestion due to crashes. The study was based on crash, traffic, and RMSs operations data from 2016 to 2018 collected on a section along I-95 in Miami-Dade County, Florida. Results showed that activating the nearest upstream RMS positively influenced traffic conditions upstream of a crash location during daytime off-peak periods. Factors including the extent of lane blockage, type of lane blockage, number of responding agencies, incident detection methods, and fire rescue influenced the traffic conditions upstream of the crash location during daytime off-peak periods and peak periods.
Journal: Transportation Planning and Technology
Pages: 599-614
Issue: 5
Volume: 46
Year: 2023
Month: 07
X-DOI: 10.1080/03081060.2023.2203694
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2203694
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:46:y:2023:i:5:p:599-614
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2229306_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Mohammadreza Koloushani
Author-X-Name-First: Mohammadreza
Author-X-Name-Last: Koloushani
Author-Name: Mahyar Ghorbanzadeh
Author-X-Name-First: Mahyar
Author-X-Name-Last: Ghorbanzadeh
Author-Name: Eren Erman Ozguven
Author-X-Name-First: Eren Erman
Author-X-Name-Last: Ozguven
Author-Name: Alireza Ermagun
Author-X-Name-First: Alireza
Author-X-Name-Last: Ermagun
Title: A conceptualization of the spatial relationship associated with school-related crashes: a case study in Northwest Florida
Abstract:
This research examines whether the distance between school locations and the Central Business District (CBD) is related to crash hotspots by employing spatial-statistical methods to cluster school-aged children involved in crashes. The findings indicate that (i) severe school-related crashes are significantly clustered away from the CBD as opposed to minor school-related crashes and (ii) severe crashes are more likely to happen around the schools despite the fact that estimated vehicle speeds at the time of crashes are lower in the vicinity of the nearest associated school. This helps identify locations adjacent to schools that pose a higher risk and offers transportation authority’s insight into the effectiveness of safety countermeasures within school zones.
Journal: Transportation Planning and Technology
Pages: 795-817
Issue: 6
Volume: 46
Year: 2023
Month: 08
X-DOI: 10.1080/03081060.2023.2229306
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2229306
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:6:p:795-817
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2229309_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Aldo Arranz-López
Author-X-Name-First: Aldo
Author-X-Name-Last: Arranz-López
Author-Name: Julio A. Soria-Lara
Author-X-Name-First: Julio A.
Author-X-Name-Last: Soria-Lara
Author-Name: Martin Dijst
Author-X-Name-First: Martin
Author-X-Name-Last: Dijst
Author-Name: Hichem Omrani
Author-X-Name-First: Hichem
Author-X-Name-Last: Omrani
Title: Does e-shopping increase walking time willingness to reach in-store locations? Exploring the spatial effects
Abstract:
The studies analyzing the relationships between e-shopping and transport mostly ignore the effects in active mobility. This paper complements current research by studying how e-shopping affects individual walking time willingness to reach daily and non-daily retail opportunities, taking the city of Zaragoza, Spain as a case study. First, a questionnaire is administered, followed by a generalised ordered logit regression model analysis. Then, a gravity-based model is used to compare present walking accessibility levels to retail with an exploratory 2030 scenario based on the regression results. The results indicate a positive association between the frequency of e-shopping and the individual time willingness to reach daily and non-daily retail on foot. They also show that high-educated people tend to have lower time-willingness to reach both types of retail. For non-daily retail, women shopping online are more likely to spend more time on walking, while having children under 12 years old and having a car are negatively associated with walking time-willingness. The exploratory 2030 scenario shows a relevant increase of walking accessibility to daily and non-daily retail. The paper closes with a discussion on how the obtained findings can provide guidelines to improve policies that promote walking and active lifestyles.
Journal: Transportation Planning and Technology
Pages: 729-753
Issue: 6
Volume: 46
Year: 2023
Month: 08
X-DOI: 10.1080/03081060.2023.2229309
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2229309
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:6:p:729-753
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# input file: GTPT_A_2224311_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Christina Iliopoulou
Author-X-Name-First: Christina
Author-X-Name-Last: Iliopoulou
Author-Name: Christos Karolemeas
Author-X-Name-First: Christos
Author-X-Name-Last: Karolemeas
Author-Name: Konstantinos Gkiotsalitis
Author-X-Name-First: Konstantinos
Author-X-Name-Last: Gkiotsalitis
Author-Name: Konstantinos Kepaptsoglou
Author-X-Name-First: Konstantinos
Author-X-Name-Last: Kepaptsoglou
Title: Electric taxi licensing under a tradable credit scheme: model and application
Abstract:
Taxi market modeling has long attracted researchers’ and practitioners’ attention, with a variety of models presented to investigate the effects of different market regulation regimes. Motivated by the increasing interest in and theoretical advantages of tradable credit systems for mobility management, this study investigates the use of a tradable credit scheme for taxi licensing. A mixed integer non-linear programming problem is formulated to determine the credit price, daily charge and number of vehicles in order to maximize social welfare. In the social benefit-maximizing solution, the supply of conventional taxis is exhausted, while about 50% of the available electric taxi drivers enter the market. Sensitivity analysis shows that increasing the validity period of the credits, reducing the daily system fee for electric taxis or subsidizing the purchase of electric taxis could lead to greater social benefits by increasing the profit margin of electric taxi drivers and incentivizing their wider adoption.
Journal: Transportation Planning and Technology
Pages: 773-794
Issue: 6
Volume: 46
Year: 2023
Month: 08
X-DOI: 10.1080/03081060.2023.2224311
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2224311
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:46:y:2023:i:6:p:773-794
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# input file: GTPT_A_2228760_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Jubaer Ahmed
Author-X-Name-First: Jubaer
Author-X-Name-Last: Ahmed
Author-Name: Nicholas Ward
Author-X-Name-First: Nicholas
Author-X-Name-Last: Ward
Author-Name: Annmarie McMahill
Author-X-Name-First: Annmarie
Author-X-Name-Last: McMahill
Author-Name: Jay Otto
Author-X-Name-First: Jay
Author-X-Name-Last: Otto
Author-Name: Erika E. Miller
Author-X-Name-First: Erika E.
Author-X-Name-Last: Miller
Title: Effects of emotional intelligence on dangerous driving: a comparison between commercial and non-commercial drivers
Abstract:
Drivers with a Commercial Driver’s License (CDL) experience higher rates of fatal and serious injury crashes compared to non-commercial drivers. Emotional Intelligence (EI) has shown to be a significant predictor of dangerous driving among non-commercial drivers. However, there is limited research investigating EI within commercial drivers. This paper investigates the relationship between drivers’ EI and dangerous driving behaviors, and how this differs between commercial (N = 595) and non-commercial (N = 615) drivers. A survey was conducted, where EI was measured using Trait Emotional Intelligence Questionnaire, and risky driving using Dula Dangerous Driving Questionnaire. Analyses confirmed (1) commercial drivers have lower EI than non-commercial (ANCOVA, p < .01); (2) commercial drivers are more likely to report more dangerous driving behaviors (MANCOVA, p < .01); and (3) lower EI is associated with increased dangerous driving, and these effects are strongest amongst commercial drivers (linear regression, p < .001). Promoting and improving EI can help prevent dangerous driving and reduce crash risk.
Journal: Transportation Planning and Technology
Pages: 695-709
Issue: 6
Volume: 46
Year: 2023
Month: 08
X-DOI: 10.1080/03081060.2023.2228760
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2228760
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:6:p:695-709
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# input file: GTPT_A_2214136_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Ruijie Bian
Author-X-Name-First: Ruijie
Author-X-Name-Last: Bian
Author-Name: Tara Tolford
Author-X-Name-First: Tara
Author-X-Name-Last: Tolford
Author-Name: Shuqian Liu
Author-X-Name-First: Shuqian
Author-X-Name-Last: Liu
Author-Name: Sirisha Gangireddy
Author-X-Name-First: Sirisha
Author-X-Name-Last: Gangireddy
Title: Lessons learned from evaluating complete streets project outcomes with emerging data sources
Abstract:
Complete Streets projects can bring multifaceted benefits but before-and-after analysis regarding their mobility and accessibility outcomes is quite limited in practice. This study used emerging data sources to conduct longitudinal project outcome evaluations. Two projects from Louisiana were selected as case studies for demonstration. The two projects did not induce heavier congestion in a pilot analysis region. One project with sidewalks/bike lanes contributes to traffic calming in an urban context, while the other project consisting only of a widened shoulder marked for bicycle use may raise speeding concerns in a rural context. Both projects are likely to bring accessibility benefits as they attract more businesses and longer visits. The authors also noted data source and outcome measure challenges in different contexts. The proposed evaluation approach and identified data gaps will benefit the private sector in diversifying/improving their data products and facilitate the public sector in making more data-driven decisions.
Journal: Transportation Planning and Technology
Pages: 754-772
Issue: 6
Volume: 46
Year: 2023
Month: 08
X-DOI: 10.1080/03081060.2023.2214136
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2214136
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:46:y:2023:i:6:p:754-772
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# input file: GTPT_A_2227178_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Amit Kumar
Author-X-Name-First: Amit
Author-X-Name-Last: Kumar
Author-Name: Vishrut S. Landge
Author-X-Name-First: Vishrut S.
Author-X-Name-Last: Landge
Author-Name: Sumeet Jaiswal
Author-X-Name-First: Sumeet
Author-X-Name-Last: Jaiswal
Title: Changes in online and in-store shopping behaviour pre- and post-COVID-19: a case study from Indian city Nagpur
Abstract:
The recent COVID-19 pandemic brought the physical and virtual worlds closer and expedited the adoption of online shopping. In the context of pre- and post-COVID-19 scenarios, this paper establishes the relationship between the growth in online shopping, the shift in in-store grocery and non-grocery shopping trips, and the reciprocity among variables. A random sample of 1646 household responses from Nagpur city was used to develop multiple regression models to explore the interrelationship of these activities and their impact on conventional shopping and travel demand. Model results show the complex interplay between socio-demographic and shopping behaviour variables. The findings suggest incorporating the interplay impacts into travel demand forecasting models. It also highlights the possible effects on urban land use and transport planning. Finally, the study suggests integrating urban land use and transport planning at the activity level for a comprehensive approach.
Journal: Transportation Planning and Technology
Pages: 710-728
Issue: 6
Volume: 46
Year: 2023
Month: 08
X-DOI: 10.1080/03081060.2023.2227178
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2227178
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:46:y:2023:i:6:p:710-728
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# input file: GTPT_A_2226117_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Huaibin Hu
Author-X-Name-First: Huaibin
Author-X-Name-Last: Hu
Author-Name: Yixiang Yue
Author-X-Name-First: Yixiang
Author-X-Name-Last: Yue
Author-Name: Huiling Fu
Author-X-Name-First: Huiling
Author-X-Name-Last: Fu
Author-Name: Jiaxi Li
Author-X-Name-First: Jiaxi
Author-X-Name-Last: Li
Title: Improving service qualities of cyclic line plans considering heterogeneous passenger origin-destination (OD) flow groups
Abstract:
Cyclic train services provide huge conveniences to passengers. This work aims to fix one vital promise in major line planning studies that passengers were homogeneous. In fact, passengers’ rail travel expectations are heterogeneous. But those heterogeneities show common needs correlating with travel distances and defined station levels. Therefore, we cluster passenger heterogeneities into divided OD groups, extend service qualities, and add more train line factors to our line planning model. Cyclic line plan from this joint optimisation not only receives service quality improvements but also provides multiple train service types to match clustered OD groups. Moreover, we allow passengers to be served by different train service types, deliver a high level of direct services, and maintain the minimum operation cost. We compare concluded line plans with the results of the generic line planning model and the real-world line plan to show our solution advantages.
Journal: Transportation Planning and Technology
Pages: 864-887
Issue: 7
Volume: 46
Year: 2023
Month: 10
X-DOI: 10.1080/03081060.2023.2226117
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2226117
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:46:y:2023:i:7:p:864-887
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2242841_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Xinying Zhang
Author-X-Name-First: Xinying
Author-X-Name-Last: Zhang
Author-Name: Zhishen Yi
Author-X-Name-First: Zhishen
Author-X-Name-Last: Yi
Author-Name: Minghui Xie
Author-X-Name-First: Minghui
Author-X-Name-Last: Xie
Author-Name: Yanan Gao
Author-X-Name-First: Yanan
Author-X-Name-Last: Gao
Author-Name: Yuanqing Wang
Author-X-Name-First: Yuanqing
Author-X-Name-Last: Wang
Title: Exploring customer perception and satisfaction on the functions of parking application software
Abstract:
The emergence of parking application software (parking APP), considerably decreases unnecessary vehicle circling and enhances parking resource utilization. Despite the abundant functions available, limited research has considered customer requirements and satisfaction regarding the functions of parking APPs. This research exactly examined the customer perception, as well as how satisfied customers were with the functions provided by the parking APPs. Initially, the attribute classification of functions was identified utilizing Kano model based on a questionnaire survey in Hunan Province, China. The integrated functions were then used as an antecedent to evaluate customer satisfaction by structural equation model (SEM). The data analysis suggests the perceived quality is positively influenced by the four main functions of query, navigation, evaluation, and account. The results reveal that customers have less demand for automatic space grabbing and reverse vehicle tracking in small and medium-sized cities.
Journal: Transportation Planning and Technology
Pages: 929-950
Issue: 7
Volume: 46
Year: 2023
Month: 10
X-DOI: 10.1080/03081060.2023.2242841
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2242841
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:7:p:929-950
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# input file: GTPT_A_2228301_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Lixun Liu
Author-X-Name-First: Lixun
Author-X-Name-Last: Liu
Author-Name: Adam Dennett
Author-X-Name-First: Adam
Author-X-Name-Last: Dennett
Author-Name: Robin Hickman
Author-X-Name-First: Robin
Author-X-Name-Last: Hickman
Title: Exploring the spatial differences in travel mode choice of rail transit in Chongqing
Abstract:
People’s use of the rail transit system varies over space. Previous literature suggests there is a social equity dimension in the distribution of benefits from new urban transit systems, but how this varies spatially is poorly evidenced. The research aims to examine the spatial differences in the use of rail transit and associated transport equity. Using a case study of Chongqing, a geographically weighted regression (GWR) model is used to reveal the spatial variation in parameter estimates, complementing the traditional multivariate global model. The analysis demonstrates the effect of rail transit in facilitating people’s travel and mitigating transport-related social inequity, including for those with mobility disadvantages and living in areas with poor access to public transport. The results emphasise the necessity of associated development strategies and transport policies in favour of socially disadvantaged groups, such as low fare levels. Implications for planning interventions are proposed based on the model results.
Journal: Transportation Planning and Technology
Pages: 819-841
Issue: 7
Volume: 46
Year: 2023
Month: 10
X-DOI: 10.1080/03081060.2023.2228301
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2228301
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:7:p:819-841
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# input file: GTPT_A_2239214_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Jelena Simićević
Author-X-Name-First: Jelena
Author-X-Name-Last: Simićević
Author-Name: Nada Milosavljević
Author-X-Name-First: Nada
Author-X-Name-Last: Milosavljević
Title: The impact of on-street and off-street parking regulations on parking type choice
Abstract:
In practice, parking regimes for different parking types (on-street, off-street and garage) are introduced independently, leading frequently to inefficient utilization. The aim of the paper is to show that in areas with different public parking types, integrated parking management is needed so as to utilize available capacities evenly. To demonstrate this, we determined the factors impacting parking type choice, and then the importance and intensity of parking measures thereon. Empirical data collected by interviewing on-street and off-street parking users were used to develop a binary logit model showing the most important parking type choice parameters: on-street time limitation, and on-street and off-street parking prices. Reduced time limitation was found to decrease on-street parking probability while increasing off-street parking probability. Also, price increase for one parking type reduced the probability of choosing that particular type and increased opting for alternative type. Moreover, a synergy effect of integrated parking management was demonstrated.
Journal: Transportation Planning and Technology
Pages: 912-928
Issue: 7
Volume: 46
Year: 2023
Month: 10
X-DOI: 10.1080/03081060.2023.2239214
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2239214
File-Format: text/html
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Handle: RePEc:taf:transp:v:46:y:2023:i:7:p:912-928
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2239236_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Xiaoquan Wang
Author-X-Name-First: Xiaoquan
Author-X-Name-Last: Wang
Author-Name: Chaoying Yin
Author-X-Name-First: Chaoying
Author-X-Name-Last: Yin
Author-Name: Changjiang Zheng
Author-X-Name-First: Changjiang
Author-X-Name-Last: Zheng
Author-Name: Yang Shen
Author-X-Name-First: Yang
Author-X-Name-Last: Shen
Author-Name: Chunfu Shao
Author-X-Name-First: Chunfu
Author-X-Name-Last: Shao
Title: Integrating built environment and parking policy for car commuting reduction: evidence from Beijing
Abstract:
Built environment (BE) planning and parking policy are two major strategies for restricting car use. However, researchers usually explore the independent associations of BE and parking policy with the use of the car in commuting, and most earlier studies are limited to investigating the benefits of integrating them. This study adopts a machine learning approach to explore the associations of home and workplace BE features and parking policy with the use of the car in commuting and whether the associations of BE features are moderated by parking policy. Results suggest that workplace BE features have larger collective contributions to the use of the car in commuting than home BE features. All BE features have nonlinear associations with the use of the car in commuting, and the nonlinear patterns differ across home and workplace neighborhoods. Moreover, free parking and parking convenience have significant moderating effects on the connection between BE and the use of the car in commuting. Thus, planning practitioners and policy makers should highlight the importance of coordinating BE planning and policy making to restrict the use of the car in commuting.
Journal: Transportation Planning and Technology
Pages: 888-911
Issue: 7
Volume: 46
Year: 2023
Month: 10
X-DOI: 10.1080/03081060.2023.2239236
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2239236
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Handle: RePEc:taf:transp:v:46:y:2023:i:7:p:888-911
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# input file: GTPT_A_2239208_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: William Erlandson
Author-X-Name-First: William
Author-X-Name-Last: Erlandson
Author-Name: Carl Henrik Häll
Author-X-Name-First: Carl Henrik
Author-X-Name-Last: Häll
Author-Name: Anders Peterson
Author-X-Name-First: Anders
Author-X-Name-Last: Peterson
Author-Name: Christiane Schmidt
Author-X-Name-First: Christiane
Author-X-Name-Last: Schmidt
Title: Meta-Heuristic for inserting a robust train path in a non-cyclic timetable
Abstract:
Many freight trains depart Swedish marshalling yards before or after their planned departure times. Today, a deviating departure time is allowed if no conflicting train path can be found a few stations ahead. This increases the risk that the train might be delayed to its destination and cause delays to other trains. We present a meta-heuristic that modifies a timetable by adding a train path (for our freight train) and, if necessary, adjusting surrounding train paths. The aim of the insertion of the additional train path and the adjustments of the existing ones is to obtain a large bottleneck robustness, that is, the largest possible minimal temporal distance to any other train in the timetable. We provide experimental results for a Swedish railway stretch with a non-cyclic timetable and heterogeneous traffic. We show that we quickly add a train path, while improving the robustness of the timetable.
Journal: Transportation Planning and Technology
Pages: 842-863
Issue: 7
Volume: 46
Year: 2023
Month: 10
X-DOI: 10.1080/03081060.2023.2239208
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2239208
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Handle: RePEc:taf:transp:v:46:y:2023:i:7:p:842-863
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# input file: GTPT_A_2250341_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Shichao Sun
Author-X-Name-First: Shichao
Author-X-Name-Last: Sun
Author-Name: Pingye Wang
Author-X-Name-First: Pingye
Author-X-Name-Last: Wang
Title: The association between e-moped usage and residents’ subjective well-being: a case study of Shanghai, China by using Bayesian network
Abstract:
Subjective well-being (SWB) is known to significantly influence individuals’ happiness and health, as well as sustainable social development. One crucial factor that affects residents’ SWB is their choice of transport mode. However, limited research has been conducted on how the use of e-mopeds, one of the most prevalent transportation modes in China, impacts residents’ SWB. To address this gap, this study utilizes survey data from eight traffic analysis zones in Shanghai to conduct an empirical investigation focused on the relationship between the use of e-mopeds for various purposes and residents’ SWB. A Bayesian network (BN) model is established to explore the correlations among travel-related attributes, socio-demographics, and SWB. The model's results reveal a strong correlation between e-moped usage and the likelihood of achieving higher SWB. Consequently, supporting the development of e-mopeds in Shanghai is considered crucial, and targeted policies are suggested.
Journal: Transportation Planning and Technology
Pages: 976-997
Issue: 8
Volume: 46
Year: 2023
Month: 11
X-DOI: 10.1080/03081060.2023.2250341
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2250341
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# input file: GTPT_A_2242855_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Shangyao Yan
Author-X-Name-First: Shangyao
Author-X-Name-Last: Yan
Author-Name: Tsung-Hsun Hsieh
Author-X-Name-First: Tsung-Hsun
Author-X-Name-Last: Hsieh
Author-Name: Sean Chen
Author-X-Name-First: Sean
Author-X-Name-Last: Chen
Title: Vulnerability analysis of an intercity bus carrier’s short-term operations
Abstract:
An intercity bus service includes several bus stations for passenger access and bus service routes for bus operating between designated pairs of stations. Fundamentally, whether stations and bus service routes are operating normally or not has a direct impact on profits and the passenger service rate. However, changes in passenger demand patterns over time can lead to changes in the importance of stations and bus service routes, a problem that has rarely been discussed in the literature. This study applies a scheduling model to perform vulnerability analyses related to intercity bus schedules and routes in short-term operations. A series of analyses were conducted to observe the changes in the optimization results by changing its configurations. The results illustrate the vulnerability of the transportation system components under different scenarios and operating strategies, which could help an intercity bus carrier respond early to effectively maintain its operations.
Journal: Transportation Planning and Technology
Pages: 1050-1076
Issue: 8
Volume: 46
Year: 2023
Month: 11
X-DOI: 10.1080/03081060.2023.2242855
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2242855
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Handle: RePEc:taf:transp:v:46:y:2023:i:8:p:1050-1076
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# input file: GTPT_A_2231429_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Sushreeta Mishra
Author-X-Name-First: Sushreeta
Author-X-Name-Last: Mishra
Author-Name: Babak Mehran
Author-X-Name-First: Babak
Author-X-Name-Last: Mehran
Author-Name: Prasanta K. Sahu
Author-X-Name-First: Prasanta K.
Author-X-Name-Last: Sahu
Title: Optimization of headway and bus stop spacing for low demand bus routes
Abstract:
We propose a methodology for optimization of service headway and stop spacing along a low-demand bus route that minimizes operator and user costs. This study develops analytical cost models that are representative of low-demand routes by using negative binomial distribution for passenger demand for boarding and alighting pattern to estimate the probability of stopping and both random and planned arrival of passengers are considered to estimate the waiting time. Pareto optimal solutions obtained using multi-objective evolutionary algorithm, NSGA-II indicate that optimal values of headway and stop spacing are underestimated if optimized based on assumptions typical of high-demand routes which is passenger demand for boarding and alighting at bus stops randomly following a Poisson process. With the aid of the study methodology, transit planners will be able to improve the service utilization and passenger accessibility along an under-performing low demand routes by recommending minimal modifications to the existing route and bus schedule.
Journal: Transportation Planning and Technology
Pages: 1024-1049
Issue: 8
Volume: 46
Year: 2023
Month: 11
X-DOI: 10.1080/03081060.2023.2231429
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2231429
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Handle: RePEc:taf:transp:v:46:y:2023:i:8:p:1024-1049
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# input file: GTPT_A_2230969_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Sina Azizi Soldouz
Author-X-Name-First: Sina
Author-X-Name-Last: Azizi Soldouz
Author-Name: Md Sami Hasnine
Author-X-Name-First: Md Sami
Author-X-Name-Last: Hasnine
Author-Name: Mahadeo Sukhai
Author-X-Name-First: Mahadeo
Author-X-Name-Last: Sukhai
Author-Name: Khandker Nurul Habib
Author-X-Name-First: Khandker
Author-X-Name-Last: Nurul Habib
Title: Communication and mobility issues of visually impaired pedestrians with connected autonomous vehicles
Abstract:
This paper presents an econometric modelling framework to unravel the communication and mobility issues of visually impaired pedestrians in the context of connected autonomous vehicles (CAVs). The research uses a dataset collected through a tailor-made stated-preference survey given to visually impaired pedestrians and provides evidence-based recommendations on communication techniques. The recommendations are based on the findings of a structural equation model (SEM) estimated using the survey data. The latent factors ‘safety and security’ and ‘importance of hearing’ are generated using a confirmatory factor analysis embedded in the SEM. The results from the model show that these two factors have negative influences on how much a visually impaired pedestrian trusts the use of CAVs.
Journal: Transportation Planning and Technology
Pages: 998-1023
Issue: 8
Volume: 46
Year: 2023
Month: 11
X-DOI: 10.1080/03081060.2023.2230969
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2230969
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Handle: RePEc:taf:transp:v:46:y:2023:i:8:p:998-1023
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# input file: GTPT_A_2226636_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Erick Fiorote Leite da Silva
Author-X-Name-First: Erick
Author-X-Name-Last: Fiorote Leite da Silva
Author-Name: Gabriel Lanzaro
Author-X-Name-First: Gabriel
Author-X-Name-Last: Lanzaro
Author-Name: Michelle Andrade
Author-X-Name-First: Michelle
Author-X-Name-Last: Andrade
Title: A fuzzy rule-based system for terrain classification in highway design
Abstract:
The choice of an incorrect terrain classification might lead to consequences in construction costs, design speed, or even safety. However, the current design criteria for terrain classification may be highly subjective. In Brazil, design guidelines use textual descriptors for three classes, namely level, rolling, and mountainous. This study proposes a fuzzy rule-based classifier to predict terrain classes based on average slope and slope variation. The classifier uses fuzzy logic, which can account for imprecise and vague definitions of the input variables. The classifier was built using topographic variables, i.e. slope variation and average slope, and experts’ knowledge. A survey was considered to extract experts’ opinions regarding different terrain classes. The classifier provided an accuracy of at least 75%, which suggests that the expert system captured the experts’ perceptions of the highway classes. As a result, the proposed system can assist decision-making by providing a more consistent method for terrain classification.
Journal: Transportation Planning and Technology
Pages: 1077-1092
Issue: 8
Volume: 46
Year: 2023
Month: 11
X-DOI: 10.1080/03081060.2023.2226636
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2226636
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Handle: RePEc:taf:transp:v:46:y:2023:i:8:p:1077-1092
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# input file: GTPT_A_2248195_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20230119T200553 git hash: 724830af20
Author-Name: Thomas R. McKinney
Author-X-Name-First: Thomas R.
Author-X-Name-Last: McKinney
Author-Name: Erica E. F. Ballantyne
Author-X-Name-First: Erica E. F.
Author-X-Name-Last: Ballantyne
Author-Name: David A. Stone
Author-X-Name-First: David A.
Author-X-Name-Last: Stone
Title: A data-driven travel demand model to predict electric vehicle energy consumption: focusing on the rural demographic in the UK
Abstract:
This paper presents a 7-day Travel Demand Model (TDM) for UK rural areas to aid the Electric Vehicle (EV) transition in these regions. Utilising data from both the UK Census Survey and UK National Travel Survey (NTS), private passenger vehicle travel patterns for a rural village in the Peak District National Park (UK), were modelled. This model is adaptable to any rural community within the UK, requiring only publicly available information on households and vehicles for that community. Using a novel approach through the development of lifestyle scenarios to understand the required household activities, the TDM incorporates five different trip purposes as the building blocks for a vehicle’s activity. Over a period of one week, 13,520 miles were driven by 84 vehicles across 49 households, that shows an EV fleet serving this community would consume 3562 kWh energy per week.
Journal: Transportation Planning and Technology
Pages: 951-975
Issue: 8
Volume: 46
Year: 2023
Month: 11
X-DOI: 10.1080/03081060.2023.2248195
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2248195
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Handle: RePEc:taf:transp:v:46:y:2023:i:8:p:951-975
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# input file: GTPT_A_2263440_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20231214T103247 git hash: d7a2cb0857
Author-Name: Francesca Pagliara
Author-X-Name-First: Francesca
Author-X-Name-Last: Pagliara
Author-Name: Massimo Aria
Author-X-Name-First: Massimo
Author-X-Name-Last: Aria
Author-Name: Armando Castelluccio
Author-X-Name-First: Armando
Author-X-Name-Last: Castelluccio
Author-Name: Mario Tartaglia
Author-X-Name-First: Mario
Author-X-Name-Last: Tartaglia
Author-Name: Luca D’Aniello
Author-X-Name-First: Luca
Author-X-Name-Last: D’Aniello
Title: Planning the future of rail in the post-COVID era
Abstract:
This paper proposes a methodology aimed at identifying the main factors affecting the rail sector in the new normal scenario, referring to the post-pandemic era, where the transportation system has experienced significant changes. Indeed, a survey was designed, and a questionnaire was submitted to a sample of employees of Ferrovie dello Stato Italiane (Italian State Railway company). Then, a ranking of these factors was identified through the estimation of a Structural Equation Model (SEM). Results showed that the areas of Energy and Environment, Lifestyle, and Economy will positively affect the future of rail in the new normal scenario. This study offers insights into the dynamics of the rail sector's adaptation to post-pandemic conditions. By highlighting the factors that play a crucial role in shaping the future of rail transportation, this research suggests innovative strategies and policy initiatives to foster sustainable growth and resilience in the sector.
Journal: Transportation Planning and Technology
Pages: 1-26
Issue: 1
Volume: 47
Year: 2024
Month: 01
X-DOI: 10.1080/03081060.2023.2263440
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2263440
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Handle: RePEc:taf:transp:v:47:y:2024:i:1:p:1-26
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# input file: GTPT_A_2252397_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20231214T103247 git hash: d7a2cb0857
Author-Name: Changro Lee
Author-X-Name-First: Changro
Author-X-Name-Last: Lee
Title: Train stations and house prices: a local perspective
Abstract:
Opening a new train station is considered a way to generate amenity in a neighborhood. However, as train lines extend from a central city to suburbs and remote places, train stations may generate disamenity depending on the local context. This study examines the externality of stations from a house valuation perspective. A mixed-effects model is employed to capture the varying relationship between house prices and distance to a nearby station. The results show that this relationship significantly varies by county, which leads to a house price premium in some counties and price discount in others. This study attributes the price discount (disamenity) to low ridership, seasonality of ridership, passenger traits, and long distance from a central city. The study results are expected to provide policymakers with balanced insights on establishing a new station so that train stations can serve as a local amenity, not a harmful facility in the neighborhood.
Journal: Transportation Planning and Technology
Pages: 27-41
Issue: 1
Volume: 47
Year: 2024
Month: 01
X-DOI: 10.1080/03081060.2023.2252397
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2252397
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Handle: RePEc:taf:transp:v:47:y:2024:i:1:p:27-41
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# input file: GTPT_A_2246959_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20231214T103247 git hash: d7a2cb0857
Author-Name: Ruichun He
Author-X-Name-First: Ruichun
Author-X-Name-Last: He
Author-Name: Hongxing Zhao
Author-X-Name-First: Hongxing
Author-X-Name-Last: Zhao
Author-Name: Zhongni Ye
Author-X-Name-First: Zhongni
Author-X-Name-Last: Ye
Author-Name: Liumeng Yang
Author-X-Name-First: Liumeng
Author-X-Name-Last: Yang
Title: Time optimization of urban arterial coordinated control based on multidimensional neighbourhood artificial bee colony algorithm
Abstract:
Considering the traffic flow of the inner and outer intersection approach of urban arterial roads, an optimization control model of traffic arterial road signal parameters with signal cycle, green light time, and phase offset as the optimization variables is proposed. In order to solve the optimization model of timing parameters, the swarm evolution mechanism of artificial bee colony algorithm is improved and applied. The case study shows that the optimization model of timing parameters can collaboratively optimize the signal cycle, green light time and phase offset of the arterial coordinated control system, and the timing results of the optimization model by comprehensive consideration of inner and outer approach traffic flow are more beneficial to the improvement of traffic efficiency than the decoupling optimization algorithm. The proposed optimization model and solution algorithm can improve the effect of arterial coordinated control.
Journal: Transportation Planning and Technology
Pages: 113-145
Issue: 1
Volume: 47
Year: 2024
Month: 01
X-DOI: 10.1080/03081060.2023.2246959
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2246959
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Handle: RePEc:taf:transp:v:47:y:2024:i:1:p:113-145
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# input file: GTPT_A_2245389_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20231214T103247 git hash: d7a2cb0857
Author-Name: Miloš Milenković
Author-X-Name-First: Miloš
Author-X-Name-Last: Milenković
Author-Name: Miloš Gligorić
Author-X-Name-First: Miloš
Author-X-Name-Last: Gligorić
Author-Name: Nebojša Bojović
Author-X-Name-First: Nebojša
Author-X-Name-Last: Bojović
Author-Name: Zoran Gligorić
Author-X-Name-First: Zoran
Author-X-Name-Last: Gligorić
Title: A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor
Abstract:
In this paper, we model the intensity of cross-border railway traffic on the Alpine-Western Balkan Rail Freight Corridor (AWB RFC). For each of the four border crossing points: Dimitrovgrad, Presevo, Sid, and Subotica, time series composed of 102 monthly export and import railway freight traffic observations are used for training and testing of alternative forecasting models. Traditional ARIMA, Long-Short-Term Memory (LSTM) neural network, hybrid ARIMA-LSTM and Singular Spectrum Analysis (SSA) models, are fitted to each of the time series. For all the considered time series, the best model was chosen based on the lowest values of commonly used metrics for measuring the performance of forecasting models. LSTM models outperformed all other models with the highest prediction accuracy while SSA models exhibited the lowest accuracy. By utilizing advanced forecasting models, this research contributes to finding effective solutions for addressing the issue of inadequate planning of border crossing procedures in railway traffic.
Journal: Transportation Planning and Technology
Pages: 89-112
Issue: 1
Volume: 47
Year: 2024
Month: 01
X-DOI: 10.1080/03081060.2023.2245389
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2245389
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Handle: RePEc:taf:transp:v:47:y:2024:i:1:p:89-112
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# input file: GTPT_A_2294344_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20231214T103247 git hash: d7a2cb0857
Author-Name: Boban Djordjević
Author-X-Name-First: Boban
Author-X-Name-Last: Djordjević
Author-Name: Anna Ståhlberg
Author-X-Name-First: Anna
Author-X-Name-Last: Ståhlberg
Author-Name: Evelin Krmac
Author-X-Name-First: Evelin
Author-X-Name-Last: Krmac
Author-Name: Ajinkya S. Mane
Author-X-Name-First: Ajinkya S.
Author-X-Name-Last: Mane
Author-Name: Behzad Kordnejad
Author-X-Name-First: Behzad
Author-X-Name-Last: Kordnejad
Title: Efficient use of European rail freight corridors: current status and potential enablers
Abstract:
Rail freight is one of the most important pillars for the decarbonising of the transport system in Europe. To ensure the decarbonisation effect of rail freight, a substantial modal split on rail freight is needed, with the aim of strengthening the competitiveness of rail freight and improving the quality of service on the rail freight corridors (RFCs). With the aim of monitoring and evaluating the development of RFC performance, the Data Envelopment Analysis model (DEA) was applied in this study. The evaluation of efficiency was carried out for eight RFCs in 2020 and 2021 using performance indicators considered with Pearson correlation analysis. The results of the efficiency of the RFCs showed that seven of the studied corridors are not operated efficiently, while the correlation analysis showed a significant dependency between the selected indicators. Nevertheless, the efficiency of the corridors and the overall performance of rail freight can be improved by integrating innovative technologies. Therefore, this study also investigated how digital automatic couplers (DACs) and intelligent video gates (IVGs) affect the efficiency of RFCs. The results show that the inclusion of indicators related to DAC and IVG tasks has a positive impact on improving the efficiency of RFCs.
Journal: Transportation Planning and Technology
Pages: 62-88
Issue: 1
Volume: 47
Year: 2024
Month: 01
X-DOI: 10.1080/03081060.2023.2294344
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2294344
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Handle: RePEc:taf:transp:v:47:y:2024:i:1:p:62-88
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# input file: GTPT_A_2261508_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20231214T103247 git hash: d7a2cb0857
Author-Name: Siyi Zhang
Author-X-Name-First: Siyi
Author-X-Name-Last: Zhang
Author-Name: Yonggang Wang
Author-X-Name-First: Yonggang
Author-X-Name-Last: Wang
Author-Name: Zixuan Liu
Author-X-Name-First: Zixuan
Author-X-Name-Last: Liu
Author-Name: Jiazhuo Huang
Author-X-Name-First: Jiazhuo
Author-X-Name-Last: Huang
Title: Effects of built environment on metro ridership at a microscopic scale: a case study of Xi’an, China
Abstract:
Few studies have examined the relationship at the microscopic spatial scale. In this study, multiple sources of data including mobile phone signal data, automatic fare collection system data, geo-information data, and street-view image data are combined to measure metro ridership and built environment at the plot or block scale. The Random Gradient Boosting Decision Tree was used to explore relationship between the built environment and ridership. The results show the following: (1) the relationship between built environment and ridership shows different types of curves. (2) The path distance to the metro station and the visual perception of road space have more significant impacts on ridership than road network density. (3) The location of the grid also affects grid-level metro ridership. The results suggest that planners should consider the locational factors, pay attention to the different effective thresholds of different variables on ridership and the longitudinal landscaping of non-motorized urban roads.
Journal: Transportation Planning and Technology
Pages: 42-61
Issue: 1
Volume: 47
Year: 2024
Month: 01
X-DOI: 10.1080/03081060.2023.2261508
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2261508
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Handle: RePEc:taf:transp:v:47:y:2024:i:1:p:42-61
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# input file: GTPT_A_2279301_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20231214T103247 git hash: d7a2cb0857
Author-Name: Stephen Thomas Homer
Author-X-Name-First: Stephen Thomas
Author-X-Name-Last: Homer
Author-Name: Elizaveta Berezina
Author-X-Name-First: Elizaveta
Author-X-Name-Last: Berezina
Author-Name: Sabine-Salima Chaouche
Author-X-Name-First: Sabine-Salima
Author-X-Name-Last: Chaouche
Author-Name: Colin Mathew Hugues D. Gill
Author-X-Name-First: Colin Mathew Hugues D.
Author-X-Name-Last: Gill
Title: Co-designing urban transport solutions with Southeast Asian young adults
Abstract:
The region of Southeast Asia is home to some of the most congested cities. In Malaysia the densely populated area of Kuala Lumpur and its surrounding Klang Valley face the congestion and pollution problems common to cities across Southeast Asia. This study uses the bottom-up approach of concept mapping to explore potential solutions to the transportation problems associated with rapid urbanisation. A sample of young adult Malaysian participants brainstormed ideas and generated 91 proposals for action, which they grouped into the six clusters of Legislation, Infrastructure, Public Transport, Culture & Practices, Education, and Policies. Each proposal was rated for Importance, Feasibility, and Improvement to Traffic Congestion. The study yielded a series of priorities for action by policy-makers including extending existing transport routes to close the ‘last mile gap’, providing safe facilities for non-motorised forms of transport, fair enforcement of existing regulations, and appointing properly qualified professionals to improve infrastructure.
Journal: Transportation Planning and Technology
Pages: 147-169
Issue: 2
Volume: 47
Year: 2024
Month: 02
X-DOI: 10.1080/03081060.2023.2279301
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2279301
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Handle: RePEc:taf:transp:v:47:y:2024:i:2:p:147-169
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# input file: GTPT_A_2265362_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20231214T103247 git hash: d7a2cb0857
Author-Name: S. de Luca
Author-X-Name-First: S.
Author-X-Name-Last: de Luca
Author-Name: F. Storani
Author-X-Name-First: F.
Author-X-Name-Last: Storani
Author-Name: F. Bruno
Author-X-Name-First: F.
Author-X-Name-Last: Bruno
Author-Name: R. Di Pace
Author-X-Name-First: R.
Author-X-Name-Last: Di Pace
Title: Adoption of electric vehicles by young adults in an emerging market: a case study from Argentina
Abstract:
The destiny of the electric vehicle (EV) marketplace will depend upon the behaviour of potential buyers and on how emerging markets allow EVs to be perceived as a mobility solution to the externalities generated by internal combustion (IC) vehicles. To this end it is important to ascertain the role played by psychological factors, along with instrumental attributes, especially among younger adults (future purchasers) in not yet mature markets. Our paper analyses and models the propensity to purchase an EV with respect to an equivalent IC vehicle. It contributes to the existing literature investigating younger adults’ behaviour in an emerging market, focusing on the role of attitudes and perceptions. A stated preferences survey, built on real commercial scenarios (Renault ZOE vs Renault Clio), was designed and disseminated at the University of Cordoba (Argentina). Respondent behaviour was modelled within the random utility paradigm. First, heterogeneity among users was investigated through mixed multinomial logit formulation; The role of psycho-attitudinal factors was then explored through the specification of hybrid choice models with latent variables. Estimation results indicate the significant role of attitudes and perceptions in emerging markets.
Journal: Transportation Planning and Technology
Pages: 226-257
Issue: 2
Volume: 47
Year: 2024
Month: 02
X-DOI: 10.1080/03081060.2023.2265362
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2265362
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Handle: RePEc:taf:transp:v:47:y:2024:i:2:p:226-257
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# input file: GTPT_A_2259373_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20231214T103247 git hash: d7a2cb0857
Author-Name: Muhammad Usman
Author-X-Name-First: Muhammad
Author-X-Name-Last: Usman
Author-Name: Wei Li
Author-X-Name-First: Wei
Author-X-Name-Last: Li
Author-Name: Jiahe Bian
Author-X-Name-First: Jiahe
Author-X-Name-Last: Bian
Author-Name: Andong Chen
Author-X-Name-First: Andong
Author-X-Name-Last: Chen
Author-Name: Xinyue Ye
Author-X-Name-First: Xinyue
Author-X-Name-Last: Ye
Author-Name: Xiao Li
Author-X-Name-First: Xiao
Author-X-Name-Last: Li
Author-Name: Bahar Dadashova
Author-X-Name-First: Bahar
Author-X-Name-Last: Dadashova
Author-Name: Chanam Lee
Author-X-Name-First: Chanam
Author-X-Name-Last: Lee
Author-Name: Kiju Lee
Author-X-Name-First: Kiju
Author-X-Name-Last: Lee
Author-Name: Sivakumar Rathinam
Author-X-Name-First: Sivakumar
Author-X-Name-Last: Rathinam
Author-Name: Marcia Ory
Author-X-Name-First: Marcia
Author-X-Name-Last: Ory
Title: Small and rural towns’ perception of autonomous vehicles: insights from a survey in Texas
Abstract:
People’s perceptions of Autonomous Vehicles (AVs) are critical to understanding the role of AVs in future transportation systems. Most previous work on AVs perceptions is based on large cities or metropolitan areas. This study provides a unique perspective regarding perceptions of impacts of AVs in small and rural communities through an online survey in Central Texas (n = 1153). Our questionnaires gathered basic socio-demographic characteristics and AV impacts variables identified from the literature. We used summary statistics and ordered logistic regression models to reveal the perceived impacts of AVs. Residents of small and rural communities, particularly older adults (65 + years), were more enthusiastic about the development of AVs than the national average. Our findings reveal that being an employed, married male with a higher income increases the likelihood of accepting the impacts of AVs, suggesting further research to explore a feasible approach to utilizing AVs in small, rural communities.
Journal: Transportation Planning and Technology
Pages: 200-225
Issue: 2
Volume: 47
Year: 2024
Month: 02
X-DOI: 10.1080/03081060.2023.2259373
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2259373
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Handle: RePEc:taf:transp:v:47:y:2024:i:2:p:200-225
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# input file: GTPT_A_2264277_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20231214T103247 git hash: d7a2cb0857
Author-Name: Viet Pham Quoc
Author-X-Name-First: Viet Pham
Author-X-Name-Last: Quoc
Author-Name: Thanh Le Quoc
Author-X-Name-First: Thanh Le
Author-X-Name-Last: Quoc
Title: Operational efficiency for container terminal operators with undesirable outputs: slacks-based measures
Abstract:
Operational efficiency is crucial in the container terminal industry to reduce costs, increase throughput, enhance customer satisfaction, optimize the supply chain, improve safety, minimize environmental impact, and ensure adaptability and resilience in a dynamic and competitive market. The article aims to estimate operational efficiency for CTOs by the Slacks-Based Measures (SBM) model when considering CO2 emissions and work accidents as undesirable outputs. In doing so, this paper adopted the cluster analysis to select homogeneous CTOs acting as Decision-making Units (DMUs). CTOs in the Cai Mep-Thi Vai port (the CMTV case) were then empirically studied to verify the validity of the suggested model. The results could have real-world applications for CTOs looking for managerial actions to boost operational efficiency and maintain high-quality growth. Additionally, the research model may provide an analytical reference for relevant port management applications. In particular, this study offers CTOs a scientific framework for evaluating the operational efficiency of CTOs located in a port.
Journal: Transportation Planning and Technology
Pages: 284-301
Issue: 2
Volume: 47
Year: 2024
Month: 02
X-DOI: 10.1080/03081060.2023.2264277
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2264277
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Handle: RePEc:taf:transp:v:47:y:2024:i:2:p:284-301
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# input file: GTPT_A_2280210_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20231214T103247 git hash: d7a2cb0857
Author-Name: Fadhlullah Apriandy
Author-X-Name-First: Fadhlullah
Author-X-Name-Last: Apriandy
Author-Name: Sugiarto Sugiarto
Author-X-Name-First: Sugiarto
Author-X-Name-Last: Sugiarto
Author-Name: Yusria Darma
Author-X-Name-First: Yusria
Author-X-Name-Last: Darma
Author-Name: Renni Anggraini
Author-X-Name-First: Renni
Author-X-Name-Last: Anggraini
Author-Name: Juliana Fisaini
Author-X-Name-First: Juliana
Author-X-Name-Last: Fisaini
Author-Name: Irsan Bahrumy
Author-X-Name-First: Irsan
Author-X-Name-Last: Bahrumy
Title: An exploratory analysis of factors that encourage students to choose sustainable modes in travelling to schools: evidence from Victoria, Australia
Abstract:
Travelling using sustainable modes, such as active transport and public transport, improves students’ well-being and mental health, and bolsters sustainability. This study aims to investigate factors that encourage students to use sustainable modes which are public transport and active transport. The random parameters (mixed) logit was employed using the Victorian Integrated Survey of Travel and Activity (VISTA) data from Victoria, Australia to comprehensively explore trip attributes, socio-demographics, and built environment factors impacts on school travel mode choice. The inadequacy of model validation in previous research was addressed with the inclusion of the model accuracy test, which arguably is as equally important as behavioural inference. The result showed that travel distance and destination to primary school were the biggest contributors to mode choice probability, negatively affecting sustainable mode choice. The model produced an excellent overall accuracy (85.80%). This research elaborated on the inference of factors affecting mode choice and thus provided recommendations to help develop policies supporting sustainable transportation plans to improve students’ well-being.
Journal: Transportation Planning and Technology
Pages: 170-199
Issue: 2
Volume: 47
Year: 2024
Month: 02
X-DOI: 10.1080/03081060.2023.2280210
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2280210
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Handle: RePEc:taf:transp:v:47:y:2024:i:2:p:170-199
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# input file: GTPT_A_2265382_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20231214T103247 git hash: d7a2cb0857
Author-Name: Sang Hyung Park
Author-X-Name-First: Sang Hyung
Author-X-Name-Last: Park
Author-Name: Sihyun Kim
Author-X-Name-First: Sihyun
Author-X-Name-Last: Kim
Title: Connected and automated vehicle loading system for improving operational inefficiency from human driven vehicle in roll-on/roll-off port operations
Abstract:
This study aims to identify the non-value-adding activities during vehicle stowage operations in automobile terminals and propose a connected automated vehicle (CAV) loading system, a self-driving-car-loading system. Furthermore, the productivity of the CAV loading system is compared with the current loading system. A simulation model of an actual loading system was developed using the software FlexSim. The simulation results showed that the walking time of workers, operation time of shuttle vans, and waiting time occupied a large part of the cycle time in the current operation system. The proposed CAV loading system has eliminated these inefficiencies, and increased productivity by 26.78%. This is the first study to (1) present a self-driving-car-loading system in a simulated automobile terminal of a real-world size, and (2) propose a CAV loading system. Results provide useful insights for the integration of self-driving technology into future automobile port operations.
Journal: Transportation Planning and Technology
Pages: 258-283
Issue: 2
Volume: 47
Year: 2024
Month: 02
X-DOI: 10.1080/03081060.2023.2265382
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2265382
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Handle: RePEc:taf:transp:v:47:y:2024:i:2:p:258-283
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# input file: GTPT_A_2285456_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20240209T083504 git hash: db97ba8e3a
Author-Name: Hongmei Yu
Author-X-Name-First: Hongmei
Author-X-Name-Last: Yu
Author-Name: Xiaofei Ye
Author-X-Name-First: Xiaofei
Author-X-Name-Last: Ye
Author-Name: Lining Liu
Author-X-Name-First: Lining
Author-X-Name-Last: Liu
Author-Name: Tao Wang
Author-X-Name-First: Tao
Author-X-Name-Last: Wang
Author-Name: Xingchen Yan
Author-X-Name-First: Xingchen
Author-X-Name-Last: Yan
Author-Name: Jun Chen
Author-X-Name-First: Jun
Author-X-Name-Last: Chen
Author-Name: Bin Ran
Author-X-Name-First: Bin
Author-X-Name-Last: Ran
Title: Analyzing multi-factor effects on travel well-being, including non-linear relationship and interaction
Abstract:
Enhancing the travel well-being of commuters is crucial for the sustainable development of urban transportation and requires a clear understanding of the factors. However, existing research on the factors affecting travel well-being has not considered travel disturbance. This research adds travel disturbance and effort to a survey in Ningbo, China. Using this dataset, machine learning algorithms were employed to explore the complex relationship of seven variables on commuters’ travel well-being. The results demonstrated machine learning algorithms such as Gradient Boosting Decision Tree and Random Forest outperform traditional linear regressions in analyzing travel well-being. The study identified built environment (Relative Importance = 24.6%) and affective effort (Relative Importance = 17.2%) were key determinants of travel well-being. Non-linear relationship between key variables and travel well-being was also investigated, and revealing a complex interaction between these variables. This research could help transportation managers provide more targeted and efficient suggestions to increase urban commuters’ travel well-being.
Journal: Transportation Planning and Technology
Pages: 419-447
Issue: 3
Volume: 47
Year: 2024
Month: 04
X-DOI: 10.1080/03081060.2023.2285456
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2285456
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Handle: RePEc:taf:transp:v:47:y:2024:i:3:p:419-447
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# input file: GTPT_A_2311081_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20240209T083504 git hash: db97ba8e3a
Author-Name: Gunnhild Beate Antonsen Svaboe
Author-X-Name-First: Gunnhild Beate Antonsen
Author-X-Name-Last: Svaboe
Author-Name: Trude Tørset
Author-X-Name-First: Trude
Author-X-Name-Last: Tørset
Author-Name: Jardar Lohne
Author-X-Name-First: Jardar
Author-X-Name-Last: Lohne
Title: A comparative study of national travel surveys in six European countries
Abstract:
This paper aims to show how changes in survey design, supervision, and data collector affect travel survey data. The results can be used by policymakers and travel behaviour researchers when evaluating or choosing survey design. A document study of public documentation of national travel survey (NTS) methodology, and research using NTS data material from six European countries were conducted to compare the survey design of their respective NTSs. The results show that all countries included in this analysis have some sort of quality challenges. However, the countries have handled them differently, at different stages, and the transparency of the data collection process varies. Transparency in the data collection process and processing of data is essential for improving the survey design, evaluating quality, and ensuring that the time series is intact.
Journal: Transportation Planning and Technology
Pages: 400-418
Issue: 3
Volume: 47
Year: 2024
Month: 04
X-DOI: 10.1080/03081060.2024.2311081
File-URL: http://hdl.handle.net/10.1080/03081060.2024.2311081
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Handle: RePEc:taf:transp:v:47:y:2024:i:3:p:400-418
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# input file: GTPT_A_2265910_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20240209T083504 git hash: db97ba8e3a
Author-Name: Ashwin Narayana
Author-X-Name-First: Ashwin
Author-X-Name-Last: Narayana
Author-Name: Chandra Balijepalli
Author-X-Name-First: Chandra
Author-X-Name-Last: Balijepalli
Title: Models for quick evaluation of displaced right turn intersection performance
Abstract:
Alternative intersection designs can provide cost-effective solutions to overcome the proven inadequacy of conventional approaches. Several studies have assessed the performance of alternative designs against a range of traffic volumes and geometric design aspects, each in isolation, but a model which can factor in multiple variables into the analysis is the identified research gap. The displaced left-turn – DLT intersection design was found to be the most versatile, efficient, and transferable to locations elsewhere in the world. In this paper, a displaced right-turn intersection – a variant of DLT, was modelled for a range of traffic flows and design conditions. Regression models were developed for Practical Reserve Capacity and Delay as dependent variables with traffic flow, proportion of right-turning traffic, signal cycle time and length of displaced turn as explanatory variables. These models can provide relatively quick preliminary estimates of the performance indicators before committing to resource-consuming junction remodelling works.
Journal: Transportation Planning and Technology
Pages: 448-470
Issue: 3
Volume: 47
Year: 2024
Month: 04
X-DOI: 10.1080/03081060.2023.2265910
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2265910
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Handle: RePEc:taf:transp:v:47:y:2024:i:3:p:448-470
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# input file: GTPT_A_2287138_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20240209T083504 git hash: db97ba8e3a
Author-Name: Şükrü İmre
Author-X-Name-First: Şükrü
Author-X-Name-Last: İmre
Author-Name: Dilay Çelebi
Author-X-Name-First: Dilay
Author-X-Name-Last: Çelebi
Author-Name: Umut Asan
Author-X-Name-First: Umut
Author-X-Name-Last: Asan
Title: Estimating potential adoption rate of electric vehicles in urban logistics
Abstract:
This research presents an analytical analysis of the factors related to the preference for using electric vehicles, aimed at estimating their potential adoption in urban freight transport. We employed choice modeling to assess the trade-offs among various attributes associated with Electric Freight Vehicles (EFVs) and predicted the probabilities of EFV adoption within urban freight fleets. This estimation is based on an industry survey and real delivery data from a retail firm. Our findings indicate that electric vehicles could be utilized in approximately 32% of the deliveries for the case company. This, in turn, corresponds to a notable 26% reduction in CO2 emissions resulting from delivery operations. Furthermore, our model enabled us to expand the scope of our analysis to the city level, using Istanbul as a specific example. Our illustration demonstrates that, under the current circumstances, electric vehicles have the potential to account for roughly 25% of all deliveries in Istanbul.
Journal: Transportation Planning and Technology
Pages: 370-399
Issue: 3
Volume: 47
Year: 2024
Month: 04
X-DOI: 10.1080/03081060.2023.2287138
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2287138
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Handle: RePEc:taf:transp:v:47:y:2024:i:3:p:370-399
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# input file: GTPT_A_2294339_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20240209T083504 git hash: db97ba8e3a
Author-Name: Henrik Sällberg
Author-X-Name-First: Henrik
Author-X-Name-Last: Sällberg
Author-Name: Emil Numminen
Author-X-Name-First: Emil
Author-X-Name-Last: Numminen
Title: Critical risk factors of electric road uptake on motorways: a Swedish Delphi study
Abstract:
This paper presents the results of a ranking-type Delphi study on the critical risk factors for the adoption of an electric road system (e-road) for trucks on the main motorways in Sweden. The investment cost of such a system is high, necessitating an upfront evaluation of the adoption risk factors to reduce the likelihood of budget overruns and project delays. Participating Swedish e-road experts (N = 52) from the public sector, private sector, and academia identified 32 unique risk factors, which were divided into five categories. The three most critical risk factors, as ranked by the experts, were ‘low expansion rate,’ ‘low utilization rate,’ and ‘lengthy public-sector evaluation.’ Overall, market and financial risks were ranked as more important than institutional, technological, and sustainability risks. This study has important implications for policymakers in countries considering e-road adoption.
Journal: Transportation Planning and Technology
Pages: 303-322
Issue: 3
Volume: 47
Year: 2024
Month: 04
X-DOI: 10.1080/03081060.2023.2294339
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2294339
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Handle: RePEc:taf:transp:v:47:y:2024:i:3:p:303-322
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# input file: GTPT_A_2268601_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20240209T083504 git hash: db97ba8e3a
Author-Name: Si Liu
Author-X-Name-First: Si
Author-X-Name-Last: Liu
Author-Name: Elkafi Hassini
Author-X-Name-First: Elkafi
Author-X-Name-Last: Hassini
Title: Freight last mile delivery: a literature review
Abstract:
The authors review the literature on last mile delivery logistics within commercial and humanitarian supply chains from 2010 to the end of 2021. The scope of the last mile, including last mile logistics, last mile distribution, and last-mile mile delivery, is covered. A unifying terminology of the major concepts in this field and a bibliometric analysis are provided. Based on the analysis, the authors further classify and discuss the literature into three clusters: humanitarian relief, commercial logistics, and emerging technologies. Within each generated cluster, research gaps and current trends are identified. Future research directions are suggested based on this literature review.
Journal: Transportation Planning and Technology
Pages: 323-369
Issue: 3
Volume: 47
Year: 2024
Month: 04
X-DOI: 10.1080/03081060.2023.2268601
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2268601
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Handle: RePEc:taf:transp:v:47:y:2024:i:3:p:323-369
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# input file: GTPT_A_2293056_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20240209T083504 git hash: db97ba8e3a
Author-Name: Chih-Hao Hsu
Author-X-Name-First: Chih-Hao
Author-X-Name-Last: Hsu
Title: Simulation of emergency evacuation with crowd-gathering risk and evaluation methods: a case study of the mass rapid transit system in Taipei
Abstract:
Mass rapid transit (MRT) systems are the backbone of transportation infrastructure in many cities. During emergencies, indoor subway stations become particularly susceptible to panic and overcrowding, making evacuation difficult. Therefore, simulating the evacuation and sheltering processes of a large number of individuals during emergencies is key in urban disaster response. In this study, a spatial evacuation risk model was used to enhance the safety of evacuation strategies in an MRT system. Data were collected on spatial architectural floor plans, and a database for communication and pedestrian flow was established. The behavioral patterns and distribution of individuals within stations and the characteristics of refuge spaces were also investigated. To simulate the processes of evacuation and sheltering, the Pathfinder evacuation simulation tool was used to construct a three-dimensional spatial model of a subway station. Specific scenarios were then constructed to simulate the procedures of evacuation and sheltering. Subsequently, the factors contributing to overcrowding-related hazards were analyzed to examine the spatial risks associated with crowd aggregation and evacuation and provide recommendations for improvement. Given its numerous advantages, this approach can serve as a valuable reference for conducting risk assessments in other large-scale crowd aggregation spaces.
Journal: Transportation Planning and Technology
Pages: 514-539
Issue: 4
Volume: 47
Year: 2024
Month: 05
X-DOI: 10.1080/03081060.2023.2293056
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2293056
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# input file: GTPT_A_2300800_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20240209T083504 git hash: db97ba8e3a
Author-Name: Ali Soltani
Author-X-Name-First: Ali
Author-X-Name-Last: Soltani
Author-Name: Mohammad Azmoodeh
Author-X-Name-First: Mohammad
Author-X-Name-Last: Azmoodeh
Author-Name: Milad Doostvandi
Author-X-Name-First: Milad
Author-X-Name-Last: Doostvandi
Author-Name: Ahmad Sheikh Ahmadi
Author-X-Name-First: Ahmad
Author-X-Name-Last: Sheikh Ahmadi
Author-Name: Mohammad Rahimi
Author-X-Name-First: Mohammad
Author-X-Name-Last: Rahimi
Title: Post-COVID-19 campus commuting patterns and influential factors: evidence from a developing country
Abstract:
This research investigates factors influencing students’ commuting choices to university campuses, focusing on the post-COVID-19 era, attitudes, and socio-economic variables. The study includes original data collected from a total of 785 participants who were surveyed at Shiraz University, located in Iran. The study results indicate that while public transportation and university shuttle buses continue to be widely used for transportation, a considerable proportion of students prefer personal cars, mostly driven by favourable impressions. The closeness to the campus is a crucial factor in this regard, as the students residing within a distance of 3 km exhibit a preference for walking. Moreover, the significance of bio-security factors such as cleanliness and the effective control of crowds for modal choice in the post-COVID-19 era. The study's findings give valuable insights for service providers and university administrators in the development of sustainable commuting programmes that align with the university's environmental goals.
Journal: Transportation Planning and Technology
Pages: 566-597
Issue: 4
Volume: 47
Year: 2024
Month: 05
X-DOI: 10.1080/03081060.2023.2300800
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2300800
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# input file: GTPT_A_2282059_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20240209T083504 git hash: db97ba8e3a
Author-Name: Md Ashraful Imran
Author-X-Name-First: Md Ashraful
Author-X-Name-Last: Imran
Author-Name: Kate Hyun
Author-X-Name-First: Kate
Author-X-Name-Last: Hyun
Title: In-store shopping trip predictions and impact factors during COVID-19 emergencies
Abstract:
Despite the rapid growth of online shopping during COVID-19, a significant number of consumers still prefer in-store shopping. This study leverages two years (i.e. pre-pandemic and pandemic) of smartphone location data to develop machine learning (ML) models, specifically Random Forest (RF) and Extreme Gradient Boosting (XGBoost), for predicting community (e.g. block group (BG)) level in-store shopping trips for department stores, shopping malls, supermarkets, and wholesale stores. This study identifies that temperature, accessibility to stores, and the number of online shopping last-mile delivery are the three most important factors influencing shopping trips; specifically, the extent of online shopping is a critical determinant for supermarkets and wholesale store trip-makings before and during the pandemic. The models developed and important determinants of shopping trips will provide useful insight for shopping trip demand forecasting as well as impact assessments of relevant policies on in-store shopping demand during emergencies.
Journal: Transportation Planning and Technology
Pages: 540-565
Issue: 4
Volume: 47
Year: 2024
Month: 05
X-DOI: 10.1080/03081060.2023.2282059
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2282059
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# input file: GTPT_A_2325215_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20240209T083504 git hash: db97ba8e3a
Author-Name: The Editors
Title: Correction
Journal: Transportation Planning and Technology
Pages: 622-622
Issue: 4
Volume: 47
Year: 2024
Month: 05
X-DOI: 10.1080/03081060.2024.2325215
File-URL: http://hdl.handle.net/10.1080/03081060.2024.2325215
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Handle: RePEc:taf:transp:v:47:y:2024:i:4:p:622-622
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# input file: GTPT_A_2306357_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20240209T083504 git hash: db97ba8e3a
Author-Name: Frédéric Dobruszkes
Author-X-Name-First: Frédéric
Author-X-Name-Last: Dobruszkes
Author-Name: Amparo Moyano
Author-X-Name-First: Amparo
Author-X-Name-Last: Moyano
Title: The longer the better? Revisiting high-speed rail coverage worldwide
Abstract:
While high-speed rail networks involve significant public expenditure in the name of the whole nation, scholars have paid little attention to the share of the population served by this modern transport mode. Studies have favoured perspectives that either neglect population volumes or include them but cannot offer a worldwide assessment. Public authorities favour passionate statements about network length and cruising speed but at the same time they neglect the populations served. In contrast, this paper offers a worldwide comparison of populations served by high-speed rail services in 15 countries. We found the range is wide (7%−94%) and depends on several factors beyond network length, including network design, urbanisation patterns, technical characteristics and domestic vs. international purposes.
Journal: Transportation Planning and Technology
Pages: 471-488
Issue: 4
Volume: 47
Year: 2024
Month: 05
X-DOI: 10.1080/03081060.2024.2306357
File-URL: http://hdl.handle.net/10.1080/03081060.2024.2306357
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:47:y:2024:i:4:p:471-488
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2286495_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20240209T083504 git hash: db97ba8e3a
Author-Name: Xu Yi
Author-X-Name-First: Xu
Author-X-Name-Last: Yi
Author-Name: Kang Chen
Author-X-Name-First: Kang
Author-X-Name-Last: Chen
Author-Name: Zhongzhen Yang
Author-X-Name-First: Zhongzhen
Author-X-Name-Last: Yang
Title: The trend of the structural change of the city taxi market in China: a modal split analysis in the context of different market access rules
Abstract:
To elucidate the impact of online car-hailing (OCH) on traditional taxi services and in producing structural changes to urban taxi markets in China, we propose a model based on the market access rules and business models of the two modes that analyzes their interactions in the following arenas: fleet size, passenger waiting time, service level, and driver income. Then, we build a nested logit model to predict the modal splits and market shares for four travel modes (online car-hailing, traditional taxi, metro, and bus). Taking Ningbo as an example, we estimate the changes in the number of OCH vehicles, the modal splits of the four travel modes, and the new equilibrium in urban taxi service markets. We show that OCH puts significant pressure on the traditional taxi market due to the positive feedback between OCH fleet size and its service quality.
Journal: Transportation Planning and Technology
Pages: 598-621
Issue: 4
Volume: 47
Year: 2024
Month: 05
X-DOI: 10.1080/03081060.2023.2286495
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2286495
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:47:y:2024:i:4:p:598-621
Template-Type: ReDIF-Article 1.0
# input file: GTPT_A_2269191_J.xml processed with: repec_from_jats12.xsl darts-xml-transformations-20240209T083504 git hash: db97ba8e3a
Author-Name: Kuo-Cheng Hsu
Author-X-Name-First: Kuo-Cheng
Author-X-Name-Last: Hsu
Author-Name: Shu-Wen Lin
Author-X-Name-First: Shu-Wen
Author-X-Name-Last: Lin
Author-Name: Ying-Ying Leong
Author-X-Name-First: Ying-Ying
Author-X-Name-Last: Leong
Author-Name: Jia-Huey Yeh
Author-X-Name-First: Jia-Huey
Author-X-Name-Last: Yeh
Title: Enhancing the pedestrian environment and walking willingness around mass rapid transit (MRT) stations in Asian cities – an empirical study of Taipei
Abstract:
Asian cities have promoted TOD to increase MRT use and decrease private vehicle use. A crucial factor in achieving this goal is improving the pedestrian environment, which can increase people's willingness to walk to MRT stations. This paper analyses how Asian cities have improved the pedestrian environment around MRT stations and the factors influencing walking willingness by reviewing literature and taking Taipei as the empirical area. The results demonstrated that reducing obstacles in pedestrian space, evening the pavement, using transparent window displays in stores along the pavement, and constructing rain shelters can increase people's willingness to walk. The simulations of improved environments can provide references for countries improving the pedestrian environment. The contribution and innovation are to point out the differences in the motivation and goals of TOD in Asian and Western cities and propose improvements to increase people's willingness to walk to achieve TOD's goals.
Journal: Transportation Planning and Technology
Pages: 489-513
Issue: 4
Volume: 47
Year: 2024
Month: 05
X-DOI: 10.1080/03081060.2023.2269191
File-URL: http://hdl.handle.net/10.1080/03081060.2023.2269191
File-Format: text/html
File-Restriction: Access to full text is restricted to subscribers.
Handle: RePEc:taf:transp:v:47:y:2024:i:4:p:489-513