Research Article
Association between Truck Crashes due to Mechanical Failure and Truck Age
Table 1
Truck types and distribution.
| Truck type | Count | Percentage |
| Truck-tractor (cab only, or with any number of trailing unit) | 14,015 | 64.51 | Single-unit straight truck or cab-chassis (26,000 lbs + GVWR) | 3,024 | 13.92 | Single-unit straight truck or cab-chassis (19,500–26,000 lbs. GVWR) | 1,167 | 5.37 | Single-unit straight truck or cab-chassis (10,000–19,500 lbs. GVWR) | 1,364 | 6.28 | Medium/heavy pickup (10,000 lbs. + GVWR) | 1,265 | 5.82 | Single-unit straight truck or cab-chassis (GVWR unknown) | 439 | 2.02 | Unknown medium/heavy truck type | 89 | 0.41 | Camper or motorhome, unknown truck type | 85 | 0.39 | Medium/heavy truck based motorhome | 120 | 0.55 | Step van (10,000 lbs. GVWR) | 74 | 0.34 | Unknown if single unit or combination medium truck heavy truck (26,000 lbs. + GVWR) | 47 | 0.22 | Unknown if single unit or combination medium truck (10,000–26,000 lbs. GVWR) | 28 | 0.13 | Unknown truck type (light/medium/heavy) | 9 | 0.04 | Total | 21,726 | 100.00 |
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