Type of variable

Independent variables

Coefficient estimate

Standard Error

t (Estimate/SE)

Mean

Standard Deviation

Minimum

Maximum

Global

Travel time

1.022

0.285

3.592

Local

Lighting condition

1.722

2.840

−2.224

17.497

Global

Travel time

1.159

0.245

4.730

Local

Weather

0.112

1.888

−3.655

2.400

Global

Travel time

1.230

0.261

4.720

Local

Day of the week

6.244

9.734

−8.694

27.672

Global

Travel time

1.066

0.296

3.606

Local

Time of the day

1.134

2.479

−2.714

15.744

Global

Travel time

1.233

0.329

3.751

Local

Crash Severity

0.703

5.706

−44.274

18.124