FINAL DESIGN AND IMPLEMENTATION PLAN FOR EVALUATING THE EFFECTIVENESS OF FMVSS 105: HYDRAULIC BRAKE SYSTEMS IN PASSENGER CARS

This report covers the final design and implementation plan for evaluating the effectiveness of FMVSS 105 (Hydraulic Brake Systems in Passenger Cars). The plan for the evaluation study considers measurability criteria, alternative statistical and laboratory techniques, data availability/collectability, resource requirements, work schedule, and other factors. The Standard specifies minimum performance requirements for a number of different braking characteristics such as stopping distance vs. speed, fade and recovery, water recovery, partial failure and others. The evaluation of the Standard cannot be done exclusively with mass accident data, because few records indicate whether or not brake performance was a causal factor in the accident. The requirements of the Standard cover such a broad spectrum of performance characteristics, there is little distinction between vehicles meeting or not meeting all of the requirements. Therefore, data from a more detailed type of accident reporting such as that of multidisciplinary investigation teams would be required. The plan described herein takes two general approaches: (1) statistical analysis of available and subsequent multidisciplinary accident data; and (2) acquisition of new test data. To carry out these approaches, five evaluation and cost methodologies are discussed herein. One evaluation program involves straightforward data processing of existing data. Three other evaluation programs call for acquiring laboratory and field survey data. The program for determining cost of the Standard requires obtaining data from the manufacturers. It is estimated that the entire program would take nearly six years, at a cost of about $873 thousand.

  • Corporate Authors:

    Center for the Environment and Man, Incorporated

    275 Windsor Street
    Hartford, CT  USA  06120

    National Highway Traffic Safety Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Sweeton, E R
    • Northrop, G M
  • Publication Date: 1977-11

Media Info

  • Pagination: 171 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00181344
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: DOT-HS-803-389 Final Rpt., CEM-4228-588
  • Contract Numbers: DOT-HS-7-01674
  • Files: NTIS, TRIS, USDOT
  • Created Date: Sep 27 1978 12:00AM