Research Article
A Simultaneous Safety Analysis of Crash Frequency and Severity for Highway-Rail Grade Crossings: The Competing Risks Method
Table 3
Ranking variables based on hazard ratio.
| Variable | PDO | Injury | Fatality | Crash | Rank | % impact | Rank | % impact | Rank | % impact | Rank | % impact |
| Type of train service: | Intercity passenger | 1 | 82% | 5 | 18% | 2 | 101% | 2 | 49% |
| Train detection: | CWT | 5 | 22% | 1 | 65% | 1 | 172% | 2 | 49% | DC | 3 | 50% | 3 | 45% | 3 | 86% | 1 | 50% |
| Is commercial power available? | No | 8 | 10% | 2 | 50% | 6 | 35% | 6 | 18% |
| Is roadway/pathway paved? | No | 2 | 55% | 4 | 33% | 8 | 18% | 3 | 45% | Total daytime through trains | 6 | 22% | 7 | 11% | 7 | 33% | 5 | 22% | Total nighttime through trains | 7 | 18% | 6 | 18% | 4 | 65% | 7 | 10% | Total switching trains | 10 | 1% | 11 | 3% | 5 | 65% | 9 | 3% | Maximum train speed | 11 | 0.4% | 10 | 5% | 10 | 3% | 10 | 2% | Annual average daily traffic | 14 | 0.01% | 14 | 0.004% | 14 | 0.01% | 13 | 0.01% | Percent trucks | 9 | 8% | 9 | 10% | 9 | 4% | 8 | 9% | Distance to nearby intersecting roadway | 13 | 0.1% | 13 | 0.02% | 13 | 0.05% | 12 | 0.03% | Smallest crossing angle | 12 | 0.2% | 12 | 1% | 12 | 1% | 11 | 0.4% | Number of traffic lanes | 4 | 49% | 8 | 11% | 11 | 1% | 4 | 35% |
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