DEVELOPMENT OF ADJUSTMENT FACTORS FOR ON-ROAD FUEL ECONOMY

The purpose of this analysis has been to evaluate and quantify the differences between EPA test-measured and actual on-road fuel economy. It is expected that the methodology and the adjustment factors developed in this analysis will form the basis for a labeling system that, in future model years, will discount the EPA test measurements of new cars to estimate on-road fuel economy. Because new cars employ a growing percentage of fuel efficient technologies having distinctly lower levels of shortfall than traditional ones, this analysis has carefully evaluated and, to the extent that available data permit, quantified the shortfall of the alternative technologies.

• Corporate Authors:

  Energy and Environmental Analysis, Incorporated

  1111 North 19th Street
  Arlington, VA  United States  22209

  Environmental Protection Agency

  Emission Control Technology Division, 2565 Plymounth Road
  Ann Arbor, MI  United States  48105
• Authors:
  • Crawford, R
  • Forshay, P
  • Dulla, R
• Publication Date: 1981-3

Media Info

• Pagination: 219 p.

Subject/Index Terms

• TRT Terms: Adjustment factors; Analysis of variance; Ash content; Automobiles; Data collection; Estimating; Fuel consumption; Performance evaluations; Technology assessment
• Old TRIS Terms: Soda ash
• Subject Areas: Data and Information Technology; Energy; Highways; Vehicles and Equipment; I96: Vehicle Operating Costs;

Filing Info

• Accession Number: 00346503
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: EPA-460/3-81-003 Final Rpt.
• Contract Numbers: EPA-68-03-2888
• Files: TRIS
• Created Date: Jan 29 1982 12:00AM