Macrolevel Traffic Crash Analysis: A Spatial Econometric Model Approach

Table 5

Direct, indirect, and total effects of SDM model.

Variables	Direct Effect		Indirect Effect		Total Effect
	Coefficient	T Statistic	Coefficient	T Statistic	Coefficient	T Statistic
Ln_Population_Density	0.154	1.951	0.102	4.387	0.256	2.544
Ln_Company_ Density	-0.620	-16.946	-0.199	-2.485	-0.819	-8.503
Ln_Consumption _ Density	0.089	2.297	0.023	0.252	0.112	1.102
Ln_Hotel_ Density	-0.091	-5.641	-0.052	-1.736	-0.143	-4.285
Ln_Residential_density	-0.084	-2.509	-0.004	-0.072	-0.088	-1.402
Ln_Intersection _ Density	0.070	2.248	-0.079	-1.145	-0.009	-0.121
Ln_Road_ Density	0.214	6.667	0.187	2.408	0.401	4.631

Note: , , and indicate significance at the 1%, 5%, and 10% levels, respectively.