Abstract
Fatigue is one of the leading factors contributing to road crashes. A driver who has been awake for 17 hours has a driving ability similar to that of a driver with a Blood Alcohol Concentration BAC of 0.05, and after 21 hours, similar to a BAC of 0.15. Fatigue crashes are usually severe, resulting in serious injury and death, as the driver makes no attempt to avoid or prevent the crash. (Author/publisher)