This report documents the methodology used by the Southern California Association of Governments (SCAG) to perform a mobile-source emissions analysis of the Regional Transportation Improvement Program (RTIP). The geographical area of analysis was Ventura County and the California South Coast Air Basin, which includes all of Orange County, and portions of Los Angeles, Riverside, and San Bernardino Counties. The analysis, required by Federal Transportation-- Air Quality Planning Guidelines as well as California State TIP guidelines, used a variety of modeling techniques and calculations to analyze measures including, but not limited to, new freeway construction, freeway widening, and computerized traffic control. Emphasis was placed on arriving at methods that were simple, inexpensive, and quick since the analysis was constrained by a lack of extensive data, funding, and time. The analysis concludes that the RTIP measures should be justified by traditional transportation reasons (congestion relief, capacity improvement, etc.) rather than air quality reasons. However, the analysis did show that the RTIP will result in a small beneficial impact on air quality.

  • Corporate Authors:

    Southern California Association of Governments

    600 South Commonwealth Avenue, Suite 1000
    Los Angeles, CA  United States  90005

    Urban Mass Transportation Administration

    400 7th Street, SW
    Washington, DC  United States  20590
  • Authors:
    • McFarlane, N
    • Shijo, W
  • Publication Date: 1979-4

Media Info

  • Pagination: 78 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00197534
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Files: NTIS, TRIS, USDOT
  • Created Date: Jul 31 2003 12:00AM