This discussion of transportation and air quality relation at the regional level describes Virginia's experience with the use of the SAPOLLUT air quality analysis emission program, and the adequacy of this approach in relating impacts of proposed transportation plans and programs on air quality. In Virginia, a complete SAPOLLUT analysis was performed in 5 major urban areas and emissions in kilograms per day were calculated for the 3 major transportation- related pollutants: carbon monoxide, hydrocarbons, and nitrogen oxides. Emissions were calculated for 3 functional types of highways; freeways, arterials and local streets. Emissions for each pollutant and for each functional type of facility were calculated according to their location. The results from SAPOLLUT studies were incorporated into a report. The major advantage of SAPOLLUT is that allows pollutant emissions from various transportation alternatives to be compared by using an established data bank of transportation information. It can also be used to determine if changes in the transportation network will cause a change in spatial distribution of pollutant emissions. The shortcomings of the SAPOLLUT model relate to output results which are expressed as total emissions in unit mass, the adequacy of the resolution of carbon monoxide information, and the estimation of nitrogen oxide.

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    • 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. Presented at the Conference on the State of the Art of Assessing Transportation-Related Air Quality Impacts, Washington, D.C. October 22-24, 1975.
  • Corporate Authors:

    Transportation Research Board (TRB)

    Washington, DC   
  • Authors:
    • Nash, Carlton T
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  • Publication Date: 1976

Media Info

  • Media Type: Digital/other
  • Features: References;
  • Pagination: pp 173-175
  • Monograph Title: Assessing transportation-related air quality impacts
  • Serial:

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Filing Info

  • Accession Number: 00139662
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: Sep 16 1976 12:00AM