NEW APPROACHES TO URBAN-SCALE TRANSPORTATION EMISSIONS MODELING UNDER A NEW CLEAN AIR ACT

The sources of urban air pollution were well known and documented, but standard practice in estimating the specific contribution of these sources (hence their appropriate respective roles in scaling back emissions) has been found in many instances to be no more precise now than in the late 1970s, as development of the last major round of State Implementation Plans (SIPs) was underway around the nation. In particular, techniques of estimating (and forecasting) emissions from transportation sources in specific urban areas, with the possible exception of those in California, have not progressed significantly in ten years. Reasons for this are numerous, many of which have been beyond the control of the responsible state and regional agencies, but the fact remains that significant imprecision in urban-scale transportation emissions modeling persists at the very time that greater precision is most needed, driven by the relatively stringent control requirements for chronic and severe air quality non-attainment areas. The objective of this paper is to identify possible ways for state and regional planners to improve estimation of mobile source emissions without the need for substantially more resources than would have to be allocated in any case to compliance with requirements of the 1990 Clean Air Act Amendments (CAAA), and by using tools and data sources that are already "on the shelf."

  • Corporate Authors:

    Argonne National Laboratory

    9700 South Cass Avenue
    Argonne, IL  United States  60439
  • Authors:
    • Saricks, C L
    • Vyas, A D
  • Publication Date: 1991

Media Info

  • Features: References;
  • Pagination: 21 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00619476
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: ANL/CP-72755, CONF-910659-14
  • Files: TRIS
  • Created Date: Feb 29 1992 12:00AM