Research Article
Traffic Incident Clearance Time and Arrival Time Prediction Based on Hazard Models
Table 4
Estimation results of survival AFT model for clearance time for crash.
| Variable | Estimate coefficient | Wald Chi-square | Pr > ChiSq |
| Intercept | 4.7907 | 8.74 | 0.0031 | Priority | −0.1495 | 27.7239 |
<0.0001 | Intersection | 0.1737 | 5.3656 | 0.0205 | Blockage type | 0.1878 | 13.7469 | 0.0081 | Weather | 0.1103 | 15.1529 | 0.0341 | Total opp lanes block | 0.0753 | 11.5657 | 0.0412 | Traffic disrupted | 0.0628 | 4.6412 | 0.0312 | Heavy traffic | 0.1356 | 10.4797 | 0.0012 | Major incident | 0.2158 | 17.7047 | <0.0001 | Diversion required | 0.2775 | 33.0936 | <0.0001 | Towing required | −0.1518 | 49.2159 | <0.0001 | Number of vehicles involved | 0.2862 | 70.2871 | <0.0001 | Number of people injured | 0.7411 | 26.1993 | 0.0101 | Number of fatalities | 1.0412 | 30.9592 | <0.0001 | Chemical spill | 0.3045 | 17.4566 | <0.0001 | Log likelihood | −5509.6196 | | |
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