The study investigated one particular tracking task, the Critical Tracking Task (CTT), and its use in a Drunk Driving Warning System (DDWS) to warn drivers of impairment due to alcohol. The amount of sober CTT performance at various blood alcohol concentrations (BACs) was measured. At 0.05g/100 ml BAC, which is the legal limit in Victoria, a significant impairment was obtained. However, it was found that this could not be translated into a procedure for failing substantial proportions of drivers at or just above 0.05g/100 ml while passing nearly all sober drivers. At 0.10g/100 ml (the most common legal limit in the U.S.) a greater impairment was found than that obtained in the previous U.S. studies. Field tests found no major inconvenience to drivers.

  • Availability:
  • Corporate Authors:

    Victoria Road Safety and Traffic Authority, Australia

    854 Glenferrie Road
    Hawthorne, Victoria  Australia  3122
  • Authors:
    • Bodi, A
    • O'Connor, R E
    • KING, M J
    • McDermott, F T
    • HUGHES, E
  • Publication Date: 1986-7

Media Info

  • Features: Appendices; References;
  • Pagination: 55 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00495837
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • ISBN: 0 7396 0023 8
  • Report/Paper Numbers: HS-039 884
  • Files: HSL, USDOT
  • Created Date: Jul 31 1990 12:00AM