Table 7: Statistical analysis of design variables.

Variable B S.E Wald P Value Exp(B)
Evening & early morning -0.333 0.866 0.147 0.701 0.717
Morning off-peak & peak -0.447 0.771 0.336 0.562 0.640
Afternoon off-peak & peak -1.237 0.603 4.003 0.044 0.290
Angle 2.498 1.161 4.497 0.040 12.158
Rear-end and side-swap 1.138 1.519 0.560 0.454 3.119
Run off and overturn -0.305 0.463 0.434 0.510 0.737
Dry -0.702 0.495 2.015 0.156 0.496
Wet, snowy, and icy -1.289 0.634 4.134 0.042 0.275
Careless driving 2.526 1.174 4.626 0.031 12.497
Driving while in toxic -0.165 1.310 0.016 0.900 0.848
Fail to stop for traffic control device 0.437 0.626 0.488 0.485 1.158
Improper turn & lane usage 2.631 1.213 4.881 0.004 13.89
Unsafe speed 0.611 0.584 1.094 0.295 1.842
Constant -5.243 6.070 0.746 0.388 0.005