Synthesis of Information Related to Highway Practices. Topic 54-23. Truck Escape Ramp Design and Operation

The objective of this synthesis is to document current practices used by state departments of transportation (DOTs) to detect, guide, and capture heavy vehicles speeding on steep downgrades. Information to be gathered includes (but is not limited to): (1) Prevalence and extent of escape ramp use; (2) Written policies and criteria for using escape ramps; (3) Established design alternatives; (4) Methods, including intelligent technologies, for detecting heavy vehicles that are already driving at excessive speed or are in danger of doing so; (5) Methods used to inform drivers of endangered vehicles of the availability and location of escape ramps and how to access them; (6) How state DOTs incorporate escape ramps into information provided to the public or trucking industry (e.g., traveler information systems, published documents, oversize and overweight vehicle permitting systems); (7) How state DOTs incorporate truck escape ramps in the planning of future improvements, construction projects, or programs (e.g., permitting of oversize and overweight vehicles); and (8) Opportunities identified by state DOTs for development or refinement of practice. Information will be gathered through a literature review, a survey of state DOTs, and follow-up interviews with selected agencies for the development of case examples. Information gaps and suggestions for research to address those gaps will be identified.


  • English


  • Status: Programmed
  • Funding: $55000
  • Contract Numbers:

    Project 20-05, Topic 54-13

  • Sponsor Organizations:

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001

    Federal Highway Administration

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

    Gause, Jo

  • Start Date: 20220516
  • Expected Completion Date: 0
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01845327
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-05, Topic 54-13
  • Files: TRB, RIP
  • Created Date: May 16 2022 3:03PM