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Calibration Report for the TPB Travel Forecasting Model, Version 2.3, on the 3,722‐Zone Area System

Publication Date: 1/20/2012
Publication Number: 20126427
This report describes the calibration and validation of a regional travel demand forecasting model, known as the TPB Version 2.3 Travel Model, which has been constructed for use in the Metropolitan Washington Region. The Version 2.3 model became the adopted regional travel model on Nov. 16, 2011. Revisions to the travel model are known as “builds.” When the model was adopted, it was at build #36, i.e., Version 2.3.36. The Version 2.3 Travel Model is distinguished from prior TPB travel models in that it has been developed over a new 3,722 transportation analysis zone (TAZ) system, and it has been calibrated and validated with several sources of recently collected travel data, including the COG/TPB 2007/08 Household Travel Survey and several on‐board transit surveys. The TPB Travel Forecasting Subcommittee provided oversight for the Version 2.3 Model development effort.

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Calibration Report for the TPB Travel Forecasting Model, Version 2.3, on the 3,722‐Zone Area System - Final Report

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