|
| Variables | Changes (%) |
| Combined ASAP | Inside ASAP area | Outside ASAP area |
|
| Incident characteristics | | | |
| Multiple vehicles involved in crash incident (1 if yes, 0 otherwise) | 16.6 | 23.5 | |
| Commercial motor vehicle (CMV) involved (1 if yes, 0 otherwise) | 48.7 | 54.8 | 51.1 |
| Fatality involved (1 if yes, 0 otherwise) | 126.6 | 202.2 | 85.3 |
| Vehicle towed (1 if yes, 0 otherwise) | 43.9 | 50.4 | 24.5 |
| Seat belt indicated as involved (1 if yes, 0 otherwise) | −14.4 | −6.8 | −27.3 |
| On-road (1 if yes, 0 otherwise) | −17.3 | −21.9 | −8.6 |
| Overturn (1 if yes, 0 otherwise) | | 25.2 | |
| Collision type: rear end collision (1 if yes, 0 otherwise) | | | 17.5 |
| Temporal characteristics | | | |
| Nighttime (lighting condition at time of crash incident: 1 if yes, 0 otherwise) | 10.1 | 9.6 | 13.2 |
| Winter (incident occurred in month of December, January, or February: 1 if yes, 0 otherwise) | | | 21.4 |
| Peak hours (1 if incident occurred between 7 AM–9 AM and 4 PM–6 PM, 0 otherwise) | −10.5 | −9.4 | |
| Environmental characteristics | | | |
| Rain (1 if yes, 0 otherwise) | 7.3 | 8.0 | |
| Traffic characteristics | | | |
| Average annual daily traffic (AADT/1000) | −0.6 | −0.4 | −0.4 |
| One lane in the traffic way | | −23.3 | |
| More than two lanes in the traffic way | | | 20.3 |
| Less than four lanes in the traffic way | −10.4 | | |
| Operational characteristics | | | |
| Detection time (in minutes) | 0.7 | | 1.6 |
| Response time (in minutes) | 0.9 | 1.1 | |
| Police response present (1 if yes, 0 otherwise) | 14.9 | 16.5 | |
| Fire response present (1 if yes, 0 otherwise) | 21.8 | 25.1 | 19.5 |
| Hazardous materials response present (1 if yes, 0 otherwise) | 183.8 | | |
|
