EFFECTS OF MODERATE LEVELS OF DIAZEPAM AND ALCOHOL ON TWO-LANE PASSING PERFORMANCE

Eight male drivers performed both two-lane passing and passing gap estimation trials under the influence of 10 mgm. diazepam (capsule), .10% blood alcohol concentration (from alcoholic beverage), or a placebo (capsule and beverage). Results show that safety gaps, calculated on the basis of performance of the two tasks, were significantly lower for diazepam than for alcohol or the placebo. Mean safety gaps under diazepam were negative for some subjects indicating that conflicts, leading possibly to head-on collisions, would have occurred in real traffic situations.

• Supplemental Notes:
  • Human Factors Association of Canada Annual Meeting (12th) Proceedings held in Bracebridge, Ontario, 6-8 September 1979.
• Corporate Authors:

  Human Factors Association of Canada

  Toronto, ONo,   Canada 
• Authors:
  • WILLIAMS, R
  • AttwooD, D
  • Frecker, R
• Publication Date: 0

Media Info

• Features: References;
• Pagination: p. 17.1

Subject/Index Terms

• TRT Terms: Alcoholic beverages; Driver performance; Drivers; Drugs; Frontal crashes; Passing; Personnel performance; Two lane highways
• Uncontrolled Terms: Interaction
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00384729
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: HS-029 089
• Files: HSL, USDOT
• Created Date: May 30 1984 12:00AM