BRAKE SYSTEM SAFETY ANALYSIS

THE FAULT TREE ANALYSIS METHOD IS AN IMPORTANT NEW TECHNIQUE IN SAFETY ENGINEERING FOR COMPLEX SYSTEMS. THE RESULTS OF A MOTOR VEHICLE BRAKE SYSTEM SAFETY ANALYSIS USING THE TECHNIQUE ARE DESCRIBED. THE WORK IS DIRECTED TOWARD THE IDENTIFICATION AND RANKING OF BRAKE SYSTEM FAILURE MODES WHICH MAY BE CRITICAL AS ACCIDENT CAUSATION FACTORS. SAFETY CRITICALITY FOR EACH FAILURE MODE IS DEFINED AS THE PRODUCT OF PROBABILITY OF OCCURENCE AND SEVERITY OF EFFECT ON VEHICLE CONTROL. PROBABILITIES FOR THE BRAKE SYSTEM COMPONENTS ARE ESTIMATED FROM FAILURE DATA OBTAINED FROM MAINTENANCE AND REPAIR RECORDS OF A LARGE AUTOMOBILE LEASING FLEET. AN EFFECT SCALE IS DEVELOPED USING A METHOD FOR POOLING EXPERT JUDGEMENTS TO OBTAIN THE RELATIVE RANKING OF VARIOUS BRAKE FAULTS AS TO ACCIDENT CAUSATION POTENTIAL. THE FAULT TREE STRUCTURE IS EMPLOYED TO COMBINE PROBABILITY AND EFFECT TO OBTAIN THE SAFETY CRITICALITY VALUE OF EACH FAULT. RESULTS ARE INTERPRETED IN RELATION TO FEDERAL SAFETY STANDARDS AND MOTOR VEHICLE INSPECTION REQUIREMENTS. /AUTHOR/

• Supplemental Notes:
  • 56 Pp, Figs, TABS, REFS
• Corporate Authors:

  Booz, Allen Applied Research Inc

  ,    
• Authors:
  • Olsson, G R
  • Mateyka, J A
  • Innes, J J
• Publication Date: 1971

Subject/Index Terms

• TRT Terms: Brakes; Crash causes; Crash investigation; Critical values; Failure; Fault tree analysis; Inspection; Motor vehicles; Safety; Standards; Trees (Mathematics)
• Old TRIS Terms: Failure theory
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00223658
• Record Type: Publication
• Source Agency: Highway Safety Research Institute
• Files: TRIS
• Created Date: Feb 24 1972 12:00AM