SAPOLLUT: ESTIMATING THE AIR QUALITY IMPACT OF VEHICULAR EMISSIONS RESULTING FROM A TRAFFIC ASSIGNMENT

SAPOLLUT may be used to measure the air quality impact in kilograms of pollutants. The total amount of pollutants may be, at the users option, stratified by hour of day, area type, functional classification, and pollution district. A standard FHWA historical record and default values supplied internally in the program (or user specified values) are used to stratify the volume of each link in the network (except controid connectors) by a battery of factors according to the functional classification and area type of the link. For the required emission factors, the program enters an internal table of carbon monoxide, hydrocarbons, nitrogen oxide exhaust emission factors, deterioration factors speed adjustment factors, and hydrocarbon evaporative emission factors. The program will also estimate exhaust emissions from intrazonal travel if the necessary data are input. Details of data requirements and output are given, and practical experience is described. Extensive modifications to SAPOLLUT have improved its operating efficiency, added flexibility to its input requirements, and increased the analysis options. A post processor program, SAPLSM, has been developed to summarize emissions by either link, zone (district), or grid.

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  • Supplemental Notes:
    • 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:
    • Kozlowski, Thomas P
  • Conference:
  • Publication Date: 1976

Media Info

  • Media Type: Digital/other
  • Features: Figures; References;
  • Pagination: pp 166-172
  • Monograph Title: Assessing transportation-related air quality impacts
  • Serial:

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Filing Info

  • Accession Number: 00139661
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: Sep 16 1976 12:00AM