Investigating the Relationship between Traffic Violations and Crashes at Signalized Intersections: An Empirical Study in China

Table 3

The result of White’s test.

Variable	Model 1				Model 2
	Regression coefficient	Std. error	t value	value	Regression coefficient	Std. error	t value	value
Designated approach lane violation (1208), X1	0.000147	0.000255	0.57	0.571	0.0000609	0.000519	0.12	0.908
Driving commercial vehicle during internship (1234), X2	0.042167	0.017219	2.45	0.022	0.0461448	0.0309232	1.49	0.156
Wrong-way entry (1301), X3	0.001702	0.000508	3.35	0.003	0.0020574	0.0008136	2.53	0.023
Against signs (1344), X4	0.000156	0.000156	1	0.327	0.0000645	0.0002485	0.26	0.799
Against marks (1345), X5	−7.9E − 05	0.000151	−0.52	0.605	0.0000229	0.0002433	0.09	0.926
Speeding (0∼20% over speed limit) (1352), X6	−0.00027	0.000148	−1.82	0.081	−0.0002749	0.0002927	−0.94	0.363
Against signals (1625), X7	0.001286	0.000499	2.58	0.017	0.0012029	0.0006336	1.9	0.077
City					0.5633981	3.105556	0.18	0.858
City·X1					−2.70E-06	0.0003241	−0.01	0.993
City·X2					−0.0152558	0.0209794	−0.73	0.478
City·X3					−0.0006035	0.0006589	−0.92	0.374
City·X4					0.0001937	0.0001923	1.01	0.33
City·X5					−0.0001082	0.0001865	−0.58	0.571
City·X6					−0.0000623	0.0002778	−0.22	0.826
City·X7					0.0003057	0.0007569	0.4	0.692
Constant	−7.48794	0.53862	−2.95	0.007	−6.887317	4.392542	−1.57	0.138
R squared		0.7814				0.8399
Adjusted R squared		0.7149				0.6798

Note. Significance level of 0.1.