The incorporation of systems level air quality analysis into the urban planning process is discussed, and models developed for computerized air quality analysis are described. A cyclic planning process which continually alters an area's "plan" until it provides satisfactory air quality is outlined, and methods that give an overall picture of the air quality of a given area are reviewed. A "manual" method is discussed which utilizes vehicle miles of travel, average speeds stratified by functional type highway, and EPA emission factors to determine overall system levels of carbon monoxide, hydrocarbons and nitrogen oxides. The models developed for computerized analysis include the following: the U.S.D.O.T. model which uses emission factors from the Environmental Portection Agency's manual AP-42 to compute emissions for a given network; the APRAC-la (which will compute only carbon monoxide levels) whose inputs are regular link card data such as average daily traffic, length and meteorological data; and COPOLLUT (which is based on the California line Source model) which has a program based on a "worst case" or "most probable" cases format.

  • Supplemental Notes:
    • Proceedings of the Twenty-Ninth Annual Ohio Transportation Engineering Conference, conducted by the Department of Civil Engineering, in cooperation with the Ohio Department of Transportation.
  • Corporate Authors:

    Ohio State University, Columbus

    Department of Civil Engineering
    Hitchcock Hall 470
    Columbus, OH  United States  43210
  • Authors:
    • Stanley Jr, A W
  • Publication Date: 1975-4

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00127895
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 21 1976 12:00AM