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Model Documentation and Data Requests

Documentation

Version 2.3 (This model is in draft.  It is not the adopted model.)

• TPB Travel Forecasting Model, Version 2.3:  Specification, Validation, and User’s Guide – June 30, 2008

Version 2.2 (The adopted travel model)

• COG/TPB Travel Forecasting Model Version 2.2 Specification, Validation, and User's Guide - March 1, 2008
• Two Step Traffic Assignment for HOT Lane Modeling in 2008 CLRP - December 2, 2008
• Transmittal of Version 2.2 travel model files as per the 2008 CLRP/2009-2014 TIP air quality determination - December 17, 2008
• TPB Models Development Status Report - presentation to the Travel Forecasting Subcommittee on November 21, 2008.  Slides 6-11 discuss updates to the Version 2.2 travel model, including the two-step assignment.
• FY–2008 Network Documentation: Highway and Transit Network Development – September 19, 2008.

Version 2.1D

• Status of the TPB Version 2.1D Regional Travel Model - September 17, 2004
• COG/TPB Travel Forecasting Model Version 2.1 D Draft #50 Calibration Report - November 17, 2004
• COG/TPB Travel Forecasting Model Version 2.1 D Draft #50 User's Guide - November 17, 2004
• FY-2004 Network Documentation: Highway and Transit Network Development - November 17, 2004

Version 2.1C

• COG/TPB Travel Forecasting Model, Version 2.1/TP+ Release C, Calibration Report - December 23, 2002
• COG/TPB Travel Forecasting Model, Version 2.1/TP+, Release C, User's Guide - December 23, 2002
• FY-2003 Models Development Program for COG/TPB Travel Model - June 30, 2003

 

Requests for Models and Data

Requests for models, data, and further documentation should be submitted in writing with a signed letter. The letter should be as specific as possible regarding what model version, data, and documentation are required. The letter should be addressed to:

Ronald F. Kirby
Director, Department of Transportation Planning
Metropolitan Washington Council of Governments
777 North Capitol Street, NE
Suite 300
Washington, DC 20002

COG/TPB staff will respond to the request detailing what can be provided, on what timeline and at what cost. "Off-the-shelf" requests will be sent at a minimal charge for shipping and handling. Custom requests will be priced according to staff time needed for preparation.

Note: The travel demand models require the use of a proprietary software package:  TP+, Voyager, and Cube, produced by Citilabs. COG/TPB staff cannot provide this software.