Research Article
The Impact of Aggressive Driving Behavior on Driver-Injury Severity at Highway-Rail Grade Crossings Accidents
Table 2
Mixed Logit Model Estimation Results for Drivers with Aggressive Driving behavior.
| | Variables Description | Coefficient | Standard Error | t-Statistic | Elasticity | | Fatality | Injury | PDO |
| | Defined for Fatality | | | | | | | | Constant | 5.525(1.632) | 0.682(0.371) | 13.16(3.56) | | | | | Vehicle & Train Characteristics | | | | | | | | Vehicle Speed>50mph | 7.875(0.198) | 0.092(0.127) | 7.51(2.74) | 14.8% | 13.2% | -2.8% | | Train Speed>50mph | 4.383(0.231) | 0.127(0.235) | 5.63(1.59) | 7.8% | 4.8% | -5.5% | | SUV | 2.351(0.052) | 0.096(0.192) | 5.23(1.86) | 8.9% | -4.5% | 3.8% | | Pick-up | 1.529(0.053) | 0.321(0.429) | 3.15(1.96) | 8.1% | -25.2% | 2.5% | | Driver’s Characteristics | | | | | | | | Age lees than 25 | 2.351(1.321) | 0.563(0.375) | 7.51(2.54) | 15.2% | 17.3% | -3.2% | | Male, fixed parameter | 1.127 | | 5.23 | 4.4% | 5.8% | -2.9% | | Environmental/ situational factors | | | | | | | | Peak-hour, fixed parameter | 2.641 | 0.257 | 5.21 | 15.1% | 16.2% | -5.5% | | Weather fog | 1.235(0.276) | 0.087(0.382) | -3.81(3.91) | 5.5% | -4.3% | 1.8% | | Weather Snow | 1.682(0.357) | 0.537(0.291) | -5.52(1.69) | 2.5% | -1.8% | 2.3% | | Highway-rail Grade Crossing Attributes | | | | | | | | Passive control, fixed parameter | 2.837 | 0.892 | 6.83 | 7.9% | 5.9% | -4.3% | | Open space area | 2.582(0.179) | 0.097(0.476) | 4.35(3.94) | 12.3% | 7.6% | -8.3% | | Defined for Injury | | | | | | | | Vehicle & Train Characteristics | | | | | | | | Vehicle Speed>50mph | 5.252(0.232) | 0.137(0.215) | 4.96(2.58) | 13.7% | 11.9% | -3.7% | | Train Speed>50mph | 4.327(0.384) | 0.261(0.198) | 5.25(2.63) | 6.9% | 5.3% | -6.2% | | Pick-up | 1.286(0.097) | 0.375(0.413) | 4.86(4.05) | 7.2% | -13.2% | 3.8% | | Driver’s Characteristics | | | | | | | | Age lees than 25 | 1.232(1.273) | 0.678(0.421) | 6.51(1.24) | 13.3% | 12.7% | -4.2% | | Environmental/ situational factors | | | | | | | | Peak-hour, fixed parameter | 2.321 | | 4.52 | 7.5% | 5.3% | -8.2% | | Highway-rail Grade Crossing Attributes | | | | | | | | Passive control, fixed parameter | 2.257 | | 5.57 | 3.5% | 4.2% | -2.5% | | Defined for PDO | | | | | | | | Vehicle & Train Characteristics | | | | | | | | Train Speed>50mph | 4.751(0.563) | 0.317(0.385) | 6.69(2.31) | 7.8% | 4.1% | -5.3% | | SUV | 2.751(0.127) | 0.291(0.202) | 4.96(3.53) | 5.3% | 2.7% | -3.6% | | Driver’s Characteristics | | | | | | | | Age lees than 25 | 1.263(2.081) | 0.893(0.563) | 4.59(5.87) | 10.5% | 9.8% | -8.5% | | Male, fixed parameter | 0.761 | | 6.17 | 3.9% | 5.2% | -1.9% | | Environmental/ situational factors | | | | | | | | Weather fog | 1.382(0.344) | 0.256(0.567) | -5.92(5.76) | 4.8% | 3.9% | -7.1% | | Weather Snow | 1.392(0.467) | 0.763(0.361) | -4.93(4.51) | 3.6% | -1.7% | 3.2% | | Highway-rail Grade Crossing Attributes | | | | | | | | Passive control, fixed parameter | 2.027 | | 5.18 | 2.9% | 3.1% | -5.1% | | Open space area | 1.121(0.532) | 0.345(1.321) | 7.53(4.53) | 10.5% | 6.5% | -7.8% | | Model Statistics | | | | | | | | Number of Observations | 14464 | | | | | Log-likelihood at constants | -1586.17 | | | | | Log-likelihood at convergence | -863.25 | | | |
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Notes: Parentheses indicate standard errors of random parameter estimates.
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