FLEET ACCIDENT EVALUATION OF FMVSS 121
The report presents the final results of a four-year project to evaluate the safety impact of FMVSS 121. The study focuses on the experience of 1974-1977 model year vehicles during the calendar years 1976-1978. National estimates of fatal and injury accident involvement rates (number of involvements per hundred million vehicle miles) are developed for pre-and post-standard vehicles in various exposure categories. Many approximations and assumptions were necessary to carry out this analysis with the available data. The influence of these factors must be taken into account when interpreting results. National samples of vehicles were selected from manufacturers' sales lists for exposure surveys. The data collected included descriptive information on the company and vehicle, mileage, and type of use. The NHTSA Fatal Accident Reporting System (FARS) provides information on all fatal accidents. These data were supplemented by telephone interviews. Injury level accident data were obtained from the Bureau of Motor Carrier Safety. The authors conclude that this study provides no evidence of a substantial safety benefit for post-standard vehicles. It is recommended that future evaluation programs be expanded to include limited pilot, or demonstration, programs and planning of the national impact evaluation prior to implementation of the countermeasure.
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Corporate Authors:
University of Michigan Transportation Research Institute
2901 Baxter Road
Ann Arbor, MI United States 48109-2150National Highway Traffic Safety Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Campbell, K L
- CARSTEN, O
- Publication Date: 1981-8
Media Info
- Features: Appendices; Figures; Tables;
- Pagination: 342 p.
Subject/Index Terms
- TRT Terms: Countermeasures; Evaluation; Fatalities; Fleet management; Highway safety; Impact studies; Injuries; Traffic crashes
- Identifier Terms: Fatal Accident Reporting System; Federal Motor Vehicle Safety Standards
- Uncontrolled Terms: Fleets
- Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment; I81: Accident Statistics; I91: Vehicle Design and Safety;
Filing Info
- Accession Number: 00399236
- Record Type: Publication
- Source Agency: National Highway Traffic Safety Administration
- Report/Paper Numbers: UM-HSRI-81-9 Final Rpt., HS-806 261
- Contract Numbers: DOT-HS-6-01286
- Files: HSL, TRIS, USDOT
- Created Date: Sep 30 1985 12:00AM