Commercial Motor Vehicle Driver Restart Study

The study compared 5-month work schedules and assessed SCEs (e.g., crashes, near-crashes, and crash-relevant conflicts), operator fatigue/alertness, and short-term health outcomes among CMV drivers operating under a 1-night rest period versus drivers operating under a rest period with 2 or more nights. The study also analyzed the safety and fatigue effects on CMV drivers who had less than 168 hours between their restart periods and those drivers who had at least 168 hours between their restart periods. Drivers were recruited from small, medium, and large fleets across a variety of operations (long-haul, short-haul, and regional) and different sectors of the industry (flat-bed, refrigerated, tank, and dry-van). FMCSA would like to thank the many CMV drivers and companies who volunteered to participate in this study. The study used data collected from: Electronic logging devices (ELDs) (which tracked drivers’ time on duty). Psychomotor Vigilance Tests (PVTs) (which measured alertness). Actigraph watches (which assessed sleep). Camera-based onboard monitoring systems (which recorded or measured SCEs and driver alertness). Smartphone-based self-report questionnaires that measured sleepiness, stress, hours slept, and caffeine intake. A study plan, which was peer-reviewed by a panel of independent experts with relevant medical and scientific qualifications, was published in April of 2015. The final report and findings underwent a similar independent peer review. The Secretary submitted an outline of the study’s scope and methodology to the U.S. Department of Transportation (USDOT) Inspector General. The Secretary also submitted the final report to the Inspector General.The study uses data collected from: • Electronic logging devices (ELDs) (which track drivers’ time on duty). • Psychomotor Vigilance Tests (PVTs) (which measure alertness). • Actigraph watches (which assess sleep). • Camera-based onboard monitoring systems (which record or measure SCEs and driver alertness). • Smartphone-based self-report questionnaires that measure sleepiness, stress, hours slept, and caffeine intake. An initial study plan, which was peer-reviewed by a panel of independent experts with relevant medical and scientific qualifications, was published in March of 2015. The final report and findings will undergo a similar independent peer review. The Secretary submitted an outline of the study’s scope and methodology to the U.S. Department of Transportation (USDOT) Inspector General. The Secretary will also submit the final report to the Inspector General.

Language

  • English

Project

  • Status: Completed
  • Funding: $4,000,000
  • Contract Numbers:

    DTMC7514D00011-7003

  • Sponsor Organizations:

    Federal Motor Carrier Safety Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Managing Organizations:

    Federal Motor Carrier Safety Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Walker, Martin

  • Performing Organizations:

    Virginia Tech Transportation Institute

    Blacksburg, Virginia  United States 
  • Start Date: 20150200
  • Expected Completion Date: 20160220
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01592552
  • Record Type: Research project
  • Source Agency: Federal Motor Carrier Safety Administration
  • Contract Numbers: DTMC7514D00011-7003
  • Files: RiP, USDOT
  • Created Date: Mar 2 2016 1:06PM