TRAFFIC1.DES state admn90 admn85 open90 open85 dthrte90 dthrte85 speed90 speed85 cdthrte cadmn copen cspeed Obs: 51 1. state state postal code 2. admn90 =1 if admin. revocation, '90 3. admn85 =1 if admin. revocation, '85 4. open90 =1 if open container law, '90 5. open85 =1 if open container law, '85 6. dthrte90 deaths per 100 mill. miles, '90 7. dthrte85 deaths per 100 mill. miles, '85 8. speed90 =1 if 65 mph speed limit, 1990 9. speed85 =0 always 10. cdthrte dthrte90 - dthrte85 11. cadmn admn90 - admn85 12. copen open90 - open85 13. cspeed speed90 - speed85