What effect does fatigue have on drivers' crash likelihood?

Fatigue significantly impairs a driver's ability to operate a vehicle safely, making them more likely to be involved in a crash. When drivers are fatigued, their reaction times are slowed, their attention to the road diminishes, and their decision-making capabilities are compromised. Research has shown that fatigue can have effects similar to those of alcohol intoxication, increasing the risk of errors in judgment and control of the vehicle. This heightened risk is particularly critical in situations requiring quick responses or complex maneuvers.

While fatigue can impact performance over long distances, it is not limited to long trips; fatigue can accumulate over any period of driving, especially if the driver is lacking in sleep or has been on the road for several hours without adequate breaks. Therefore, understanding the risks associated with fatigue is essential for all drivers, regardless of the duration of their trip.