Explanatory variables

Parameter

t-stat

Constant

−1.083

−17.824

Primary contributing factors

Made Improper Turn

1.7405

7.612

E Failed to Yield Right-of-Way from Traffic Signal

0.710

2.944

Crash manner

Rear End (front to rear)

0.654

1.840

Lighting condition

Dark - Roadway Not Lighted

1.391

4.036

Dusk

1.652

3.240

Gender

Male

1.29

1.993

Mu (1)

0.410

Mu (2)

0.974

Mu (3)

2.23

Log likelihood of constant only

−487.8127

Log likelihood at convergence

−437.3926