Virginia Transportation Modeling and Accessibility Program
Welcome to the Transportation Modeling & Accessibility Program site!
The Modeling and Accessibility section provides technical expertise for the Transportation Planning Branch in travel demand modeling (TransCAD/CUBE Voyger), Accessibility, Smart Scale process (congestion mitigation of new or major facility improvement and Accessibility), implement NHTS (national household Transportation Survey) and various big data statistical analysis for model development, VISSIM technical support, and NEPA traffic forecasting support.
We provide transportation modeling expertise to the Metropolitan Planning Organizations and municipalities within Virginia. We develop, maintain and update technical modeling tools to facilitate the analysis of the existing transportation system through capacity analysis, multimodal alternatives, land use and transportation interactions, Air quality conformity, EIS/EA support, and project level travel forecasts. Direct the development of complex multimodal travel demand models on local, regional, and statewide basis.
We also provide Accessibility expertise by working on integration of GIS tools and big data technologies into transportation plan development, and technical support on VISSIM model for different project level analysis.
To improve the state of the practice of travel demand modeling in Virginia to support both State and MPO travel demand modeling needs.
- Serve as the forum to discuss modeling activities in Virginia
- Assist in the maintenance and enhancement of Modeling Policies and Procedures to promote consistent best practice modeling in Virginia
- Serve as a peer exchange to discuss modeling techniques and procedures
- Sponsor training pertinent to modeling
There are currently 14 Travel Demand Models in Virginia. The models of Blacksburg, Charlottesville, Danville, Fredericksburg, Hampton Roads, Harrisonburg, Lynchburg, Richmond, Roanoke, Winchester, and Virginia Statewide Model are supported by VDOT. The Bristol and Kingsport models are supported by the Tennessee Department of Transportation and the model of Northern Virginia is supported by the Metropolitan Washington Council of Governments. If you have questions about these three models, please contact them.
You can check the detailed model information by click the map below.
If you would like to obtain a Travel Demand Model from VDOT, Please fill out the Travel Model Data Request Form (PDF, 99 KB) and return it to the Transportation and Mobility Planning Division of the Virginia Department of Transportation (VDOT) or email to the person listed in the Contact.