Coefficients

Estimate

Standard Error

P-Value

Constant

1.386

0.269

<0.001

Roadway Characteristics

Pavement friction

−0.021

0.003

<0.001

Location: Urban

−0.377

0.219

0.085

Environmental Characteristics

Non-daylight conditions

−0.330

0.070

<0.001

Adverse weather conditions

−0.219

0.081

0.007

Crash Characteristics

CMV involvement

−0.957

0.137

<0.001

Driver’s Characteristics

Driver Age

−0.011

0.001

<0.001

Speeding

0.239

0.086

0.005

Model Fit Summary

Residual deviance

7437.4

Null deviance

7636.2

χ²

198.8

Degrees of Freedom

7

P-Value

<0.001