Analysis of the AP-42, supplement 5 emission model.

Details

• Creators:
  Carpenter, William A.,
• Corporate Creators:
  Virginia Highway & Transportation Research Council
• Subject/TRT Terms:
  • Air quality management
  • Mathematical models
  • Automobiles--Environmental aspects
  • Air--Mathematical models
  • Air quality--Measurement
• Publication/ Report Number:
  VHTRC 77-R19
• Resource Type:
  Tech Report
• Geographical Coverage:
  Virginia
• Corporate Publisher:
  Virginia Transportation Research Council (VTRC)
• Abstract:
  This report examines the performance of the source strength model presented in the U.S. Environmental Protection Agency publication AP-42, Supplement 5 relative to field data gathered during the AIRPOL project and relative to the previous source strength model, AP-42, Supplement 2. The report demonstrates that the Supplement 5 model can be expected to produce "worst case" emission estimates on the order of 1.6 to 2.1 times those of Supplement 2 for typical Virginia applications. Since it appears that Virginia will be required to implement the Supplement 5 model, it is recommended that (1) operation phase input data be accurately determined on a project-by-project basis, (2) "worst case" type analyses be realistically conceived, and (3) the Department request that the FHWA and EPA justify the twofold increase in emission estimates of Supplement 5 over Supplement 2.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/19956/dot_19956_DS1.pdf
• File Type:
  [PDF - 605.98 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:9b84ee9690899811ed30c5c65d733571359f932c52ab627c479d6be2579fcd048bb53286d91ded5dd5879f882e8dc6bf8942088a68ad929fdfcb846fdfd441dd