Abstract
One individual's lack of sleep can contribute to another's lack of safety on U.S. roads, with National Highway Traffic Safety Administration research indicating that fatigue and sleep deprivation contribute to about 100,000 police-reported highway crashes causing more than 1,500 deaths annually in the U.S. Sleep deprivation and operator fatigue are critical safety issues that cut across all modes in the transportation industry. This article discusses how, to improve the safety of the entire transportation system, multimodal partnerships within the U.S. Department of Transportation are addressing problems caused by fatigue.