LTCCSLarge Truck Crash Causation Survey (US NHTSA)
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Drawing on the LTCCS and other federal data sources, three-quarters of all fatal and serious truck crashes involve at least one other vehicle, typically a passenger car.
The LTCCS was based on crashes in calendar years 2001-2003, before the current HOS rules extended mandatory driver rest from 8 to 10 hours, curtailed the overall length of the workday, and brought driver schedules in harmony with the circadian rhythm.