The report concerns the effects of marijuana smoking on actual driving performance. The major objectives of the program were to determine the dose-response relationship between delta 9-tetrahydrocannabinol (THC), marijuana's main constituent, and objectively and subjectively measured aspects of real-world driving; and, to determine whether it is possible to correlate driving performance impairment with plasma concentrations of the drug or a metabolite. A variety of driving tests were employed, including: maintenance of a constant speed and lateral position during uninterrupted highway travel, following a leading car with varying speed on a highway, and city driving. The purpose of applying different tests was to determine whether similar changes in performance under the influence of THC occur in all, thereby indicating a general drug effect on driving ability.

  • Record URL:
  • Supplemental Notes:
    • See also PB83-219121. Sponsored by National Highway Traffic Safety Administration, Washington, DC. Office of Program Development and Evaluation.
  • Corporate Authors:

    Limburg University

    Institute for Human Psychopharmacology
    Maastricht,   Netherlands 
  • Authors:
    • ROBBE, HWJ
    • O'Hanlon, J F
  • Publication Date: 1993-11


  • English

Media Info

  • Pagination: 144 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00672239
  • Record Type: Publication
  • Report/Paper Numbers: IGVG-92-15, DOT-HS-808 078
  • Files: NTL, TRIS
  • Created Date: Jan 17 1995 12:00AM