The report is organized into the following sections and appendix: review and critique of data sources; shortfall analyses; and documentation of the new DOE data base management system for in-use fuel economy. A summary of data sources available for use in the analysis is provided. A brief discussion of the individual data sources, their collection techniques and limitations is presented. In addition, the methods used to eliminate outliers and biased data are presented. Also presented are summaries of the model year, manufacturer, size class and technology categories represented in the data. Detailed analysis of shortfall for composite EPA fuel economy values is presented. A brief discussion is presented of the analysis methodology and the alternative weighting schemes employed to account for shortcomings in data base respresentation. Regression analysis is used to evalaute the form and level of shortfall for alternative technology categories. Appendix A summarizes the development of the new data base management system for the in-use fuel economy data base. The operation of the new system, specific programs and their deriviation is detailed. A new standardized in-use fuel economy data format is documented as are the new codes detailing manufacture and model information.

  • Supplemental Notes:
    • Portions are Illegible in Microfiche Products.
  • Corporate Authors:

    Energy and Environmental Analysis, Incorporated

    1111 North 19th Street
    Arlington, VA  United States  22209
  • Publication Date: 1982-1

Media Info

  • Pagination: 92 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00393701
  • Record Type: Publication
  • Report/Paper Numbers: DOE/PE/70032-T26
  • Files: TRIS
  • Created Date: Jun 30 1985 12:00AM