Quantifying the net social benefits of vehicle trip reductions: guidance for customizing the TRIMMs model

This study details the development of a series of enhancements to the Trip Reduction Impacts of Mobility Management Strategies (TRIMMS) model. TRIMMS allows quantifying the net social benefits of a wide range of transportation demand management (TDM) initiatives in terms of emission reductions, accident reductions, congestion reductions, excess fuel consumption and adverse global climate change impacts. The model also includes a sensitivity analysis module that provides program cost-effectiveness assessment. This feature allows conducting TDM evaluation to meet the Federal Highway Administration Congestion and Air Quality (CMAQ) Improvement Program requirements for program effectiveness assessment and benchmarking. This document provides guidance to help TDM professionals to use the model by selecting the appropriate cost parameters, providing referenced sources where such parameters can be obtained, and by offering general guidance on how to incorporate data already at their disposal.

  • Record URL:
  • Corporate Authors:

    University of South Florida. Center for Urban Transportation Research

    Tampa, Florida  United States 
  • Authors:
    • Concas, S
    • Winters, P L
  • Publication Date: 2009-4


  • English

Media Info

  • Pagination: 67p
  • Serial:
    • Issue Number: 77805

Subject/Index Terms

Filing Info

  • Accession Number: 01384545
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 22 2012 4:39PM