Transportation Research Board Review of TPB Modeling Procedures

At its April 17, 2002 meeting, the TPB approved a process for conducting a review of the region's travel modeling procedures. The process called for the TPB to engage a respected non-partisan organization such as the Transportation Research Board (TRB), to appoint the members of the peer review panel and oversee the review process. A request was formally made to the TRB on May 8, 2002 in a letter from then TPB Chair, Phil Mendelson. The TRB accepted this task and began its analysis of the TPB modeling procedure in January 2003. On September 8, 2003 the TRB submitted its first letter report and on May 10, 2004 the TRB concluded its analysis with the submission to TPB of its second and final letter report. TPB staff provided detailed comments on each of the TRB reports in letters of September 8, 2003 and May 13, 2004 respectively.

The following materials document the TRB review and TPB staff comments:

• First letter report from TRB - September 8, 2003
• TPB staff comments on TRB first letter report of TPB models - September 8, 2003
• Descriptions of Proposed Work Elements for the TPB Models Development Program - December 24, 2003
• Appendices to Descriptions of Proposed Work Elements - December 24, 2003 (2 MB)
• Second letter report from TRB - May 10, 2004
• TPB staff comments on TRB second letter report of TPB models - May 13, 2004