Table 7 Model estimation results for minor arterial roads.
Variables | MNL | RPL | RPLHM | RPLHMV | ||||
|---|---|---|---|---|---|---|---|---|
Coeff | t-stat | Coeff | t-stat | Coeff | t-stat | Coeff | t-stat | |
Environmental characteristics | ||||||||
Dark with no streetlight (1 if yes, 0 if no) [KA] | 1.041 | 6.44 | 1.221 | 5.17 | 1.256 | 4.75 | 0.565 | 1.78 |
Dark with streetlights (1 if yes, 0 if no) [BC] | − 0.517 | − 3.99 | − 0.593 | − 2.97 | − 0.602 | − 2.53 | − 0.715 | − 2.34 |
Crash Characteristics | ||||||||
Prior movement (1 if driver deviated from going straight, 0 if no) [KA] | − 0.388 | − 1.91 | − 0.541 | − 1.98 | − 0.600 | − 2.01 | − 0.568 | − 1.73 |
Right angle crash (1 if yes, 0 if no) [O] | − 0.757 | − 2.08 | − 0.786 | − 2.01 | − 0.764 | − 1.90 | − 0.681 | − 1.66 |
Single vehicle crash (1 if yes, 0 if no) [O] | − 1.556 | − 7.54 | − 1.795 | − 8.07 | − 1.921 | − 8.53 | − 2.126 | − 9.40 |
Lane departure (1 if yes, 0 if no) [BC] | − 1.556 | − 7.54 | − 1.795 | − 8.07 | − 1.921 | − 8.53 | − 2.126 | − 9.40 |
St. dev. of lane departure | – | – | 2.281 | 2.87 | 3.283 | 3.04 | 2.984 | 2.22 |
Roadway Characteristics | ||||||||
Mixed business and residential (1 if yes, 0 if no) [BC] | 0.383 | 3.32 | 0.571 | 3.09 | 0.599 | 2.89 | 0.551 | 2.27 |
No traffic control device (1 if yes, 0 if no) [BC] | 0.437 | 2.32 | 0.773 | 2.33 | 0.858 | 2.23 | 0.996 | 2.37 |
Pedestrian Condition and Characteristics | ||||||||
Pedestrian aged 15 to 24 years old (1 if yes, 0 if no) [KA] | − 0.757 | − 3.86 | − 1.171 | − 3.93 | − 1.349 | − 4.48 | − 1.517 | − 4.57 |
Pedestrian aged 41 to 64 years old (1 if yes, 0 if no) [O] | − 0.412 | − 1.75 | – | – | – | – | – | – |
Pedestrian with Black race (1 if yes, 0 if no) [O] | − 0.422 | − 2.11 | − 0.486 | − 2.23 | − 0.494 | − 2.18 | − 0.438 | − 1.79 |
Driver’s Condition and Characteristics | ||||||||
Driver impaired with alcohol or drug (1 if yes, 0 if no) [KA] | 1.093 | 3.89 | 1.317 | 3.30 | – | – | – | – |
Driver aged over 64 years old (1 if yes, 0 if no) [KA] | 0.386 | 1.91 | 0.548 | 1.82 | 0.641 | 1.81 | 0.791 | 1.81 |
Inattentive or distracted driver (1 if yes, 0 if no) [BC] | 0.332 | 2.06 | 0.601 | 2.35 | 0.692 | 2.39 | 0.738 | 2.39 |
Heterogeneity in mean, Parameter: Variable | ||||||||
Effect of driver impaired with alcohol or drug on the mean of random parameter lane departure | – | – | - | – | − 3.270 | − 2.80 | − 4.187 | − 2.43 |
Effect of pedestrian aged 25–40 years old on the mean of random parameter lane departure | – | – | – | – | 0.920 | 2.66 | 1.304 | 2.53 |
Effect of pedestrian impaired with alcohol on the mean of random parameter lane departure | – | – | – | – | − 1.460 | − 2.17 | − 1.638 | − 1.81 |
Heteroscedasticity in random parameters | ||||||||
Effect of dark with no streetlight on variance of lane departure | – | – | – | – | – | – | 0.811 | 2.92 |
Effect of single vehicle crash on variance of lane departure | – | – | – | – | – | – | 0.376 | 2.33 |
Effect of driver aged 15 to 24 years old on variance of lane departure | – | – | – | – | – | – | 0.482 | 2.37 |
Statistics | ||||||||
Number of observations | 1,614 | |||||||
K | 14 | 14 | 16 | 19 | ||||
Log likelihood at convergence | − 1061.955 | − 1060.891 | − 1046.158 | − 1032.652 | ||||
Restricted log likelihood | − 1773.160 | − 1773.160 | − 1773.160 | − 1773.160 | ||||
McFadden Pseudo R-squared | 0.4011 | 0.4017 | 0.4100 | 0.4176 | ||||
AIC | 2151.9 | 2149.8 | 2124.3 | 2103.3 | ||||
AIC/N | 1.333 | 1.332 | 1.316 | 1.303 | ||||