VALIDATION AND APPLICATIONS OF URBAN DIFFUSION MODEL FOR VEHICULAR POLLUTANTS

A PRACTICAL, MULTIPURPOSE URBAN DIFFUSION MODEL (APRAC-1A) HAS BEEN DEVELOPED AND EVALUATED FOR PREDICTING CONCENTRATIONS OF INERT, VEHICLE-GENERATED POLLUTANTS. THE MODEL REQUIRES ONLY ROUTINELY AVAILABLE METEOROLOGICAL AND TRAFFIC DATA TO GIVE THE FOLLOWING OUTPUTS: AERIAL CONCENTRATION ISOPLETHS, SEQUENTIAL HOURLY POINT VALUES, AND FREQUENCY DISTRIBUTIONS. AN EXTENSIVE FIELD EXPERIMENT WAS CONDUCTED IN SAN JOSE TO EVALUATE AND REFINE ALL COMPONENTS OF THE MODEL. A STREET EFFECTS SUBMODEL WAS DEVELOPED TO ACCOUNT FOR THE HIGH CONCENTRATIONS AND LARGE GRADIENTS OBSERVED IN URBAN STREET CANYONS. /AUTHOR/

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  • Corporate Authors:

    Atmospheric Environment

    ,    
  • Authors:
    • DABBERDT, W F
    • LUDWIG, F L
    • JOHNSON, W B
  • Publication Date: 1973-6

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Filing Info

  • Accession Number: 00224491
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 27 1974 12:00AM