Research for the AASHTO Standing Committee on Planning. Task 39. Forecasting Travel Time, Delay, and Reliability

This research will attempt to identify a variety of ways to provide agencies with more cost-effective measures of travel time variation, delay, and individual reliability. New planning procedures, modeling techniques and decision-making algorithms may be necessary. This research will attempt to identify analytical methods to improve agencies' ability to forecast future values of highway travel time under varying degrees of congestion. From this, better estimates of delay (both vehicle and aggregate person-delay) can be generated. A second part of the research will identify improved yet not overly complex methods of estimating variation in travel time and delay under different future scenarios. The end product would be user-friendly guidance on how to improve urban and statewide travel models' ability to generate future speed, travel time, and variability data. It might also identify alternatives to the traditional four-step models that could provide this same data, such as simulation models (more costly and complex) or sketch-planning tools (less so.)


  • English


  • Status: Proposed
  • Contract Numbers:

    Project 08-36, Task

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    McCready, Ronald

  • Start Date: 20030814
  • Expected Completion Date: 0
  • Actual Completion Date: 0
  • Source Data: RiP Project 8541

Subject/Index Terms

Filing Info

  • Accession Number: 01557260
  • Record Type: Research project
  • Source Agency: National Cooperative Highway Research Program
  • Contract Numbers: Project 08-36, Task
  • Files: RiP
  • Created Date: Mar 19 2015 1:01AM