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Drowsy driver

Crashes and Fatalities Due to Drowsy Driving

Crashes caused by drowsy driving often exhibit a set of common factors. Although sleepiness can affect all types of crashes during the entire day and night, drowsy-driving crashes most frequently occur between midnight and 6 a.m., or in the late-afternoon – both times when there are dips in your circadian rhythm (the internal human body clock that regulates sleep). Many drowsy-driving crashes also involve only a single vehicle, with no passengers besides the driver, running off the road at a high rate of speed with no evidence of braking. Drowsy-driving crashes also frequently occur on rural roads and highways.

 



U.S. Department of Transportation National Highway Traffic Safety Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
1-888-327-4236
1-800-424-9153 (TTY)