Research for the AASHTO Standing Committee on Planning. Task 137. Assessing the Utility and Costs of Statewide Travel Demand Models

There has been considerable interest among state DOTs in developing a statewide travel demand model (STDM). The motivation for having a STDM stems from the desire for statewide consistency in data input, modeling assumptions, and forecasting methods. Statewide models are designed to meet the following objectives: (1) serve as a way to connect model outputs of converging MPOs; (2) allow for forecasting of rural and intercity travel; (3) improve a DOT’s ability to evaluate various transportation policies, improvements and planning scenarios; and (4) improve the understanding of interstate and intrastate commodity movements. With limited resources, state transportation agencies must carefully weigh the anticipated benefits against the costs of building and maintaining a statewide model. Today, data is more readily available and often at lower cost. This research would examine the costs and utility among a sampling of those states that currently maintain a STDM. Assuming that statewide models provide greater value in certain scenarios but not all, the sample would include a cross section of states, from small to large, from urban to rural, including states that are experiencing strong growth as well as those that are not. The proposed research would summarize costs, both initial and recurring. The research would document how the statewide model is used in support of multimodal planning and, to the extent practical, quantify the value of these models. The project objectives are to (1) Identify the array of users and applications of STDMs, and (2) Identify the challenges, costs, and benefits of developing a model.


  • English


  • Status: Completed
  • Funding: $125000
  • Contract Numbers:

    Project 08-36, Task 137

  • Sponsor Organizations:

    National Cooperative Highway Research Program

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

    Federal Highway Administration

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

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001
  • Performing Organizations:

    RAND Corporation

  • Principal Investigators:

    Erhardt, Greg

  • Start Date: 20160620
  • Expected Completion Date: 20170620
  • Actual Completion Date: 20170620

Subject/Index Terms

Filing Info

  • Accession Number: 01670288
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 08-36, Task 137
  • Files: TRB, RiP
  • Created Date: May 28 2018 3:04PM