Spatial-Temporal Analysis of Injury Severity with Geographically Weighted Panel Logistic Regression Model

Table 2

Results of GWLR and GWPLR models.

Variable	Logistic model			GWLR model			GWPLR model
	Coef.	Std. Err.	z	Estimate	Std. Err.	z	Estimate	Std. Err.	z
Crash type
Rear-end	0.248	0.049	5.07	0.281	0.049	5.55	0.285	0.048	5.65
Sideswipe	-1.099	0.068	-16.16	-1.070	0.068	-15.67	-1.068	0.064	-14.78
Total vehicle	0.881	0.040	21.87	0.880	0.040	21.78	0.873	0.039	21.37
Vehicle 1 type
Car	-0.602	0.067	-8.95	-0.604	0.067	-8.94	-0.606	0.064	-8.93
Truck/bus	-0.596	0.073	-8.14	-0.601	0.073	-8.18	-0.613	0.070	-8.19
Pickup/van	-0.614	0.073	-8.35	-0.637	0.074	-8.62	-0.658	0.072	-8.76
Vehicle 1 driver age
16-25 years old	1.013	0.060	16.84	1.029	0.060	17.05	1.034	0.060	17.51
26-65 years old	1.059	0.055	19.05	1.080	0.055	19.33	1.092	0.056	19.65
More than 65 years old	1.180	0.079	14.87	1.207	0.079	15.14	1.213	0.079	15.54
Vehicle 1 action
Going straight	0.446	0.050	8.53	0.424	0.052	8.08	0.404	0.050	8.06
Turning left	0.614	0.065	9.37	0.594	0.065	9.02	0.575	0.065	9.01
Turning right	-0.243	0.074	-3.26	-0.219	0.075	-2.92	-0.202	0.074	-2.90
Vehicle 1 driver condition
Inattention/distracted	0.417	0.081	5.13	0.415	0.081	5.08	0.415	0.081	5.08
Vehicle 1 condition
Disregarded signs	0.863	0.067	12.73	0.867	0.068	12.72	0.870	0.069	12.73
Driving too fast	-0.254	0.062	-4.09	-0.211	0.062	-3.38	-0.204	0.062	-3.33
Failure to yield	0.716	0.054	13.13	0.696	0.055	12.69	0.675	0.056	11.94
Hit and Run	-0.437	0.064	-6.83	-0.436	0.064	-6.79	-0.436	0.064	-6.79
Vehicle 2 type
Car	-0.670	0.083	-8.01	-0.649	0.084	-7.72	-0.625	0.085	-7.63
Truck/bus	-0.717	0.088	-8.12	-0.695	0.088	-7.84	-0.675	0.087	-7.34
Pickup/van	-0.827	0.089	-9.22	-0.820	0.090	-9.10	-0.815	0.091	-9.08
Vehicle 2 driver age
16-25 years old	0.991	0.080	12.24	1.016	0.081	12.49	1.035	0.082	12.61
26-65 years old	1.008	0.073	13.73	1.038	0.074	14.08	1.061	0.076	14.27
More than 65 years old	1.069	0.096	11.05	1.105	0.097	11.37	1.134	0.097	11.62
Vehicle 2 action
Going straight	-0.511	0.073	-6.99	-0.539	0.073	-7.33	-0.552	0.073	-7.71
Stopping	-0.725	0.076	-9.52	-0.737	0.076	-9.64	-0.751	0.076	-9.73
Turning left	-0.819	0.097	-8.40	-0.802	0.097	-8.19	-0.790	0.097	-8.04
First harm
Motor vehicle in transport	0.393	0.035	11.09	0.362	0.036	10.05	0.338	0.036	10.01
Slow/stopped vehicle	0.350	0.075	4.64	0.318	0.076	4.19	0.303	0.076	4.01
Weather condition
Cloudy	0.132	0.044	2.95	0.131	0.045	2.90	0.130	0.045	2.88
Lighting condition
Daylight	1.073	0.068	15.68	1.074	0.068	15.63	1.075	0.068	15.55
Dark	1.131	0.071	15.93	1.135	0.071	15.92	1.139	0.071	15.92
Pedal cyclist	3.597	0.241	14.92	3.609	0.241	14.93	3.618	0.241	14.93
Pedestrian	3.725	0.192	19.31	3.748	0.193	19.40	3.750	0.193	19.47
Motorcyclist	1.297	0.148	8.71	1.306	0.149	8.74	1.314	0.149	8.81
Constant	-3.125	0.114	-27.37	-3.095	0.120	-25.63	-3.081	0.114	-24.34
Goodness-of-fit
No. of observations					25,029
AIC		26238.62			26131.69			25509.87
AICc		-			26131.52			25509.23

Note: means significance at 5% level.