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U.S. Department of Energy
Office of Scientific and Technical Information

Regional transportation improvement program, emissions analysis methodology, fiscal year 1980

Technical Report ·
OSTI ID:5674005
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.
Research Organization:
Southern California Association of Governments, Los Angeles (USA)
OSTI ID:
5674005
Report Number(s):
PB-295725
Country of Publication:
United States
Language:
English