IN-USE FUEL ECONOMY TREND ANALYSIS
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 representation. Regression analysis is used to evaluate the form and level 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 manufacturer and model information.
Energy and Environmental Analysis, Incorporated1111 North 19th Street
Arlington, VA United States 22209
- Publication Date: 1982-1
- Pagination: 92 p.
- TRT Terms: Data analysis; Fuel consumption; Mathematical analysis; Regression analysis; Trend (Statistics)
- Subject Areas: Data and Information Technology; Energy; Highways; Operations and Traffic Management; Vehicles and Equipment; I71: Traffic Theory;
- Accession Number: 00390035
- Record Type: Publication
- Source Agency: Energy Research Abstracts
- Report/Paper Numbers: DOE/PE/70032-T26
- Contract Numbers: AC01-79PE70032
- Files: TRIS
- Created Date: Nov 30 1984 12:00AM