2012-2013

2012-2014

2012-2015

2012-2016

Effect

DF

Wald ChiSq

Pr > ChiSq

Wald ChiSq

Pr > ChiSq

Wald ChiSq

Pr > ChiSq

Wald ChiSq

Pr > ChiSq

Vehicle Type

2

158.944

<0.0001

198.594

<0.0001

244.374

<0.0001

303.008

<0.0001

Road Classification

2

63.0613

<0.0001

62.6709

<0.0001

59.2485

<0.0001

59.5541

<0.0001

Driver Gender

1

167.328

<0.0001

227.771

<0.0001

361.160

<0.0001

482.711

<0.0001

Lane

4

67.3511

<0.0001

76.9267

<0.0001

125.775

<0.0001

140.465

<0.0001

Driver Cell Phone Use

1

25.9062

<0.0001

48.904

<0.0001

64.3876

<0.0001

72.7005

<0.0001

Passenger Present

1

7.5306

0.0061

14.047

0.0002

20.3291

<0.0001

22.2701

<0.0001