Acquisition and Analysis of Emissions Data From Tests on In-use Heavy Duty Diesel Trucks

Emission factors for diesel powered heavy-duty trucks have been traditionally developed from engineering analysis as little actual data was available. Recently, the Environmental Protection Agency (EPA) has undertaken the testing of in-use heavy duty diesel trucks on the newly developed "chassis dynamometer" transient cycle to determine their emissions. These test results from in-use trucks are the only publicly available source of data on in-use emissions on the transient cycle, and was therefore of interest in verifying emission factor data previously developed by EPA. Under contract to the EPA, Energy and Environmental Analysis (EEA) obtained the data from the contractor responsible for conducting the tests, converted the data into machine readable form and analyzed the data to estimate emission and speed correction factors for diesel trucks. This report describes all phases of this work effort, and also provides a detailed listing of the data.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Appendices; Figures; Tables;
  • Pagination: 71p

Subject/Index Terms

Filing Info

  • Accession Number: 01535712
  • Record Type: Publication
  • Contract Numbers: 68-01-6558; Subcontract No. 130.109; Work Assignme
  • Files: TRIS
  • Created Date: Aug 4 2014 12:39PM