The high accident rate of large trucks is mainly caused by what factor?

The high accident rate of large trucks is primarily attributed to driver fatigue. Fatigue significantly impacts a driver's ability to operate a vehicle safely, as it can decrease attention, reaction time, and overall cognitive function. Long hours spent driving without adequate rest can lead to drowsy driving, which is particularly dangerous in the case of large trucks given their considerable size and weight. When truck drivers are fatigued, they may not respond effectively to sudden changes in traffic conditions or emergencies, increasing the likelihood of accidents.

While speed, weather conditions, and driver age can all contribute to the risk of accidents, fatigue is a more pressing issue specifically within the trucking industry because of the demanding schedules drivers often face. Regulatory measures are in place to limit driving hours and ensure rest breaks, reflecting a recognition of fatigue as a critical factor in trucking accidents.