Table 2.
Analysis of factors influencing the severity of hazardous materials transportation accidents.
| Variable | Deaths | Injuries | Property Damage | Z Value | p Value |
|---|---|---|---|---|---|
| Illegal Behavior | −1.328 | <0.001 | |||
| 1. Illegal carriage | 3(15.00%) | 6(30.00%) | 11(55.00%) | ||
| 2. The overload | 5(31.25%) | 4(25.00%) | 7(43.75%) | ||
| 3. Fatigue driving | 7(17.95%) | 11(28.21%) | 21(53.85%) | ||
| Unsafe Driving Behavior | −0.218 | <0.001 | |||
| 1. Failure to maintain a safe distance | 10(10.42%) | 21(21.88%) | 65(67.71%) | ||
| 2. Improper operation | 3(4.29%) | 18(25.71%) | 49(70.00%) | ||
| 3. Excessive speed | 13(15.66%) | 23(27.71%) | 47(56.63%) | ||
| Accident Liability | −1.528 | <0.001 | |||
| 1. Hazardous materials vehicle | 36(8.76%) | 91(22.14%) | 284(69.10%) | ||
| 2. Other vehicles | 9(9.47%) | 24(25.26%) | 62(65.26%) | ||
| Packing Problem | −0.443 | <0.001 | |||
| 1. Valve failure | 1(4.76%) | 2(9.52%) | 18(85.71%) | ||
| 2. Broken tank | 0(0.00%) | 1(3.85%) | 25(96.15%) | ||
| 3. Tank fire | 2(16.67%) | 3(25.00%) | 7(58.33%) | ||
| Vehicle Problem | −0.225 | <0.001 | |||
| 1. Flat tire | 0(0.00%) | 1(5.56%) | 17(94.44%) | ||
| 2. Loss control | 3(20.00%) | 5(33.33%) | 7(46.67%) | ||
| 3. Brake failed | 0(0.00%) | 1(16.67%) | 5(83.33%) | ||
| 4. Engine fire | 0(0.00%) | 0(0.00%) | 2(100.00%) | ||
| 5. Other | 0(0.00%) | 2(33.33%) | 4(66.67%) | ||
| 6. Other vehicle problem | 0(0.00%) | 1(14.29%) | 6(85.71%) | ||
| Vehicle Category | −1.091 | <0.001 | |||
| 1. Tank truck | 15(6.38%) | 53(22.55%) | 167(71.06%) | ||
| 2. Oil tank truck | 18(10.29%) | 40(22.86%) | 117(66.86%) | ||
| 3. Illegally modified vehicle | 0(0.00%) | 0(0.00%) | 5(100.00%) | ||
| 4. Truck | 9(13.64%) | 18(27.27%) | 39(59.09%) | ||
| Weather | −1.964 | <0.001 | |||
| 1. Sunny | 16(14.04%) | 25(21.93%) | 73(64.04%) | ||
| 2. Cloudy | 8(4.52%) | 37(20.90%) | 132(74.58%) | ||
| 3. Rainy | 19(9.45%) | 50(24.88%) | 132(65.67%) | ||
| 4. Haze | 2(18.18%) | 3(27.27%) | 6(54.55%) | ||
| Lighting | −0.655 | <0.001 | |||
| 1. Daytime | 24(7.57%) | 70(22.08%) | 223(70.35%) | ||
| 2. Night lighting | 2(6.90%) | 4(13.79%) | 23(79.31%) | ||
| 3. Night without lighting | 18(12.95%) | 35(25.18%) | 86(61.87%) | ||
| Month Distribution | −0.655 | <0.001 | |||
| 1. First quarter | 8(8.51%) | 21(22.34%) | 65(69.15%) | ||
| 2. Second quarter | 16(10.39%) | 35(22.73%) | 103(66.88%) | ||
| 3. Third quarter | 13(9.03%) | 32(22.22%) | 99(68.75%) | ||
| 4. Fourth quarter | 11(9.09%) | 31(25.62%) | 79(65.29%) | ||
| Road Grade | −1.091 | <0.001 | |||
| 1. Expressway | 23(10.45%) | 56(25.45%) | 141(64.09%) | ||
| 2. National highway | 8(8.51%) | 21(22.34%) | 65(69.15%) | ||
| 3. Provincial highway | 8(13.33%) | 15(25.00%) | 37(61.67%) | ||
| 4. County road and below | 1(3.70%) | 9(33.33%) | 17(62.96%) | ||
| 5. Urban road(intersection) | 5(5.68%) | 14(15.91%) | 69(78.41%) | ||
| Regional Distribution | |||||
| 1. North China | 7(12.28%) | 12(21.05%) | 38(66.67%) | ||
| 2. East China | 18(9.73%) | 43(23.24%) | 124(67.03%) | ||
| 3. South China | 3(5.66%) | 13(24.53%) | 37(69.81%) | ||
| 4. Central China | 3(4.92%) | 15(24.59%) | 43(70.49%) | ||
| 5. Northwest China | 7(10.29%) | 14(20.59%) | 47(69.12%) | ||
| 6. Southwest China | 4(9.52%) | 12(28.57%) | 26(61.90%) | ||
| 7. Northeast China | 0(0.00%) | 3(16.67%) | 15(83.33%) |