Research Article
Association between Truck Crashes due to Mechanical Failure and Truck Age
Table 2
Mechanical problems and distributions.
| Mechanical problem | Count | Percentage |
| Tires | 293 | 43.1 | Brake system | 201 | 29.6 | Power train or exhaust system | 41 | 6.0 | Combination of two or more problems | 25 | 3.7 | Head, signal, or other light | 32 | 4.7 | Truck coupling/trailer hitch/safety chains | 20 | 2.9 | Wheels | 9 | 1.3 | Suspension | 7 | 1.0 | Steering | 9 | 1.3 | Body, doors | 5 | 0.7 | Safety systems | 4 | 0.6 | Wipers/windows/windshield | 2 | 0.3 | Vehicle contributing factors-no details | 32 | 4.7 | Total | 680 | 100.0 |
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