Field Study on the Efficacy of the New Restart Provision for Hours of Service (Hours of Service Field Study)

This study was a field operational test of the 34-hour restart provision requiring 2 nights of sleep between work weeks. The study team designed a field evaluation that had a protocol that is similar to the laboratory-based study entitled, "Investigation into Motor Carrier Practices to Achieve Optimal CMV Driver Performance: Phase I and II," which was conducted at Washington State University. Researchers evaluated three volunteer carrier(s) and volunteer commercial motor vehicle (CMV) drivers who were using the 34-hour restart period. The study agent recruited CMV drivers who routinely drive and work approximately 70 hours per week. The minimum 34-hour restart, 2-night provision only really pertains to CMV drivers who drive predominately during the nighttime hours.


  • English


  • Status: Completed
  • Funding: $1500000.00
  • Contract Numbers:



  • Sponsor Organizations:

    Department of Transportation

    Federal Motor Carrier Safety Administration
    1200 New Jersey Avenue, SE
    Washington, DC    20590
  • Project Managers:

    Walker, Martin

  • Performing Organizations:

    Virginia Polytechnic Institute and State University, Blacksburg

    Blacksburg, VA  United States  24061
  • Principal Investigators:

    Hanowski, Rich

  • Start Date: 20120929
  • Expected Completion Date: 0
  • Actual Completion Date: 20131028
  • Source Data: RiP Project 35397

Subject/Index Terms

Filing Info

  • Accession Number: 01494433
  • Record Type: Research project
  • Source Agency: Federal Motor Carrier Safety Administration
  • Contract Numbers: DTMC75-07-D-0006, DTMC75-12-J-00049
  • Files: RiP
  • Created Date: Sep 26 2013 1:01AM