A CRITICAL ANALYSIS OF SKETCH-PLANNING TOOLS FOR EVALUATING THE EMISSION BENEFITS OF TRANSPORTATION CONTROL MEASURES. INTERIM REPORT

The role of transportation control measures (TCMs) in the transportation planning process has increased since the passage of the 1990 Clean Air Act Amendments. TCM analysis began in the early 1980s and several sketch-planning tools are now available. The two premier sketch-planning tools used for evaluating transportation control measures are the Systems Applications International (SAI) method and the San Diego Association of Governments (SANDAG) method. Both methods were adapted to an available spreadsheet for easy use and modification. The SAI method required full programming in the spreadsheet, whereas the SANDAG method, originally developed for spreadsheet use, required only minor revisions. A critical analysis, base scenario comparison, and sensitivity analysis were performed on the SAI and SANDAG methods. Results of the sensitivity analysis showed that the tools are most sensitive to the scope descriptors and work-related variables. The report concludes that (1) recent work in the field has greatly advanced the state-of-the-practice; (2) the SAI method proved to be a better analysis tool than the SANDAG method; and (3) although sketch-planning tools are gross estimating techniques, they are currently the best TCM analysis tools.

  • Supplemental Notes:
    • Research study title: Air Pollution Implications of Urban Transportation Investment Decisions.
  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  United States  76011

    Texas Department of Transportation

    Research and Technology Transfer Office, P.O. Box 5051
    Austin, TX  United States  78763-5051

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Crawford, J A
    • Krammes, R A
  • Publication Date: 1993-12

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 113 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00662788
  • Record Type: Publication
  • Report/Paper Numbers: FHWA/TX-92/1279-5, Res Rept 1279-5, TTI: 0-1279
  • Contract Numbers: Study 0-1279
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Jul 6 1994 12:00AM