Safety Performance Evaluation of a Three-Leg Unsignalized Intersection Using Traffic Conflict Analysis

Table 2

Poisson regression model for prediction of traffic conflicts.

Variable	Coefficient	Standard error
Time headway of eastbound traffic on major road		0.035		0.008
Volume of left-turning traffic on minor road	0.283	0.145	1.950	0.051
Speed of eastbound vehicles on major road		0.021		0.000
Speed of left-turning vehicles on minor road	0.114	0.044	2.580	0.010
Constant	1.466	1.141	1.290	0.199
Log likelihood
LR	50.78
Prob >	0.000
Pseudo	0.292