COMPARISON OF AUTOMOBILE EMISSIONS BASED ON TRIP TYPE IN TWO METROPOLITAN AREAS

Estimates of the distribution of automobile emissions among various trip types in the Washington, D.C. area are developed and compared with analogous estimates previously reported for Allegheny County, Pennsylvaina. Work trips produce approximately equal proportions of emissions in both regions. However, trips to and from the central area and short trips are of considerably lesser importance in Washington than in Allegheny county. In addition, cold starts and evaporations produce a smaller proportion of emissions in the Washington area than in Allegheny County. These results suggest several ways in which measures that are effective in reducing automobile emissions in Washington are likely to differ from measures that are effective in achieving the same objective in Allegheny County. For example, improved suburban transit service and disincentives to suburban automobile travel are likely to be of greater importance in the Washington area than in Allegheny County. Jitney service or other measures oriented toward short trips may be of greater value in Allegheny County. In both regions, however, control of emissions from trips with one or both ends in the suburbs is necessary to achieve substantial reductions in regional automobile emissions.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1976/580/580-002.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=COMPARISON+OF+AUTOMOBILE+EMISSIONS+BASED+ON+TRIP+TYPE+IN+TWO+METROPOLITAN+AREAS&author=J.+Horowitz&author=L.+Pernela&publication_year=1976
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Transportation Environmental Review Process. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Horowitz, Joel L
  • Pernela, Lloyd M
• Conference:
  • 54th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia
  • Date: 1975-1-13 to 1975-1-17
• Publication Date: 1976

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 13-21
• Monograph Title: Transportation Environmental Review Process
• Serial:
  • Transportation Research Record
  • Issue Number: 580
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Air quality management; Alternatives analysis; Central business districts; Evaporation; Exhaust gases; Metropolitan areas; Public transit; Suburbs; Trip purpose; Work trips
• Geographic Terms: Allegheny County (Pennsylvania); Washington (District of Columbia)
• Subject Areas: Administration and Management; Highways; Operations and Traffic Management; Public Transportation;

Filing Info

• Accession Number: 00141272
• Record Type: Publication
• ISBN: 0309024943
• Files: TRIS, TRB
• Created Date: Oct 26 1981 12:00AM