THE INTERACTION BETWEEN DRIVER MENTAL AND PHYSICAL CONDITIONS AND ERRORS CAUSING TRAFFIC ACCIDENTS: AN ANALYTICAL APPROACH

An analytical methodology was developed to study the relationships between driver behaviors causing and immediately preceding an accident (Direct Causes), and accident causal impairments in drivers' predisposing metal and physical states (Indirect Causes). A statistic defined as the Relative Involvement Factor (RIF) was developed to reflect the change in the likelihood of any direct accident-causing behavior being implicated given the existence of a causally relevent metal or physical impairment. The usefulness of the RIF was demonstrated in an analysis of 420 traffic accidents. The analysis indicates that causal conditions and states suppress certain direct causes while increasing the liklihood of others. Specific relationships are discussed. /Author/

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  • Supplemental Notes:
    • This paper is an expanded and revised version of a paper presented at the 19th annual meeting of the Human Factors Society. Sponsored by National Highway Traffic Safety Administration.
  • Corporate Authors:

    National Safety Council

    425 North Michigan Avenue
    Chicago, IL  United States  60611
  • Authors:
    • Shinar, D
    • McDonald, S T
    • Treat, J R
  • Publication Date: 1978-4

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Filing Info

  • Accession Number: 00176793
  • Record Type: Publication
  • Source Agency: National Safety Council Safety Research Info Serv
  • Contract Numbers: DOT-HS-034-3-535
  • Files: TRIS
  • Created Date: Aug 19 1978 12:00AM