Analysis of Nonsevere Crashes on Two- and Four-Lane Urban and Rural Highways: Effects of Wet Pavement Surface Condition

Table 5

Descriptive statistics of the nonsevere wet-weather crash rates across the categorical variables and tests of normality for the selected ten routes.

Variable		N	Mean	St. Dv.	Skewness	Kurtosis	Sig.
Rural/Urban	Rural	810	56	73	1.606	2.341	0.001
	Urban	962	72	87	1.253	0.678	0.001
No. of Lanes	Two	936	60	80	1.458	1.545	0.001
	Four	836	69	85	1.371	1.126	0.001
Lighting	Dark	642	57	77	1.544	1.876	0.001
	Light	1130	68	85	1.347	1.076	0.001
Weather	Rain	1412	64	82	1.433	1.415	0.001
	No Rain	360	66	84	1.364	1.100	0.001