THE EFFECTS OF ALCOHOL ON THE DRIVER'S DECISION-MAKING BEHAVIOR. VOLUME I. EXECUTIVE SUMMARY AND TECHNICAL REPORT

The report describes two experiments designed to investigate the effects of alcohol on driver decision making as opposed to driver control capability. The first experiment consisted of a laboratory study involving a complex, interactive driver simulator. The second study was a field validation experiment employing an instrumented car and interactive test course which duplicated many of driving simulator tasks and conditions. The purpose of the research was to determine whether alcohol affects the driver's willingness to accept risk, or whether alcohol merely deteriorates his perceptual and psychomotor properties, leading to unavoidable increases in risk taking that cannot be compensated for. The results of the two experiments were quite consistent. Risk taking increased in a dose response relationship with BAC (blood alcohol concentration) as measured by increased accidents and traffic tickets, and the accident results are consistent with real world epidemiological data. Decision making analysis indicated that the increased risk taking was caused by degraded perceptual and psychomotor capabilities, not increased acceptance of risk.

  • Supplemental Notes:
    • See also Volume 2, PB-288811.
  • Corporate Authors:

    Systems Technology, Incorporated

    13766 South Hawthorne Boulevard
    Hawthorne, CA  United States  90250

    National Highway Traffic Safety Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Allen, R W
    • Schwartz, S H
    • Hogge, J R
    • Stein, A C
  • Publication Date: 1978-2

Media Info

  • Pagination: 159 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00190501
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: DOT-HS-803-608 Final Rpt., STI-TR-1053-1-VOL-1
  • Contract Numbers: DOT-HS-4-00999
  • Files: NTIS, TRIS, USDOT
  • Created Date: Mar 14 1979 12:00AM