Research Article
Unsafe Behavior Analysis and Risk Measurement of Traffic Accidents in Mountainous Highway Tunnel
Table 2
Accident tree event description for mountain highway tunnel accidents.
| Number | Meaning |
| | Tunnel traffic accident | | Human unsafe behaviors | | Car insecurity | | Road and environmental defects | | Security management deficiencies | | Driver-induced factors | | Passenger-related factors | | Vehicle factors | | Hazardous material transportation | | Tunnel defect | | Defects conditions | | Management defects | | Defects in emergency management | | Miss operation | | Physical and mental deficiency | | Vehicle safety hazards | | Daily check not in place | | Harsh environment | | Emergency disposal defects | | Speeding | | Overload | | Illegal overtaking | | Drowsy driving | | Drunk driving | | Sudden illness | | Psychological shadow | | Being depressed | | Weak awareness | | Affect driving | | No seat belts | | Carrying flammable and explosive articles | | On-the-road crash | | Brake failure | | Distraction | | Inadequate daily maintenance | | Poor compliance | | Poor regulation | | Complex lines | | Low road adhesion coefficient | | Design defect | | Ventilation and lighting defects | | Unclear traffic signs | | Inclement weather | | Slow emergency response | | Roadblock | | Inadequate management system | | Inadequate on-site supervision | | Insufficient safety education and training | | Inadequate emergency response system | | Lack of emergency drills | | Untimely emergency response |
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