Citation

Bragg BWE, Dawson N, Kirby D, Goodfellow G. Proc. Int. Counc. Alcohol Drugs Traffic Safety Conf. 1981; 1981: 1341-1353.

Copyright

(Copyright © 1981, The author(s) and the Council, Publisher International Council on Alcohol, Drugs and Traffic Safety)

DOI

unavailable

PMID

unavailable

Abstract

This study deals with roadside survey of impaired drivers. 460 drivers who passed through the observation sites were stopped and breath-tested. These drivers were selected randomly from the traffic flow once an interviewer was available. BAC and speed/alignment data were obtained, the latter being measured by a pneumatic tube device. The device has two parallel pneumatic tubes perpendicular to the traffic flow for the measurement of speed and two tubes aligned in a "V" pattern for the measurement of lateral placement. 32 (7%) of the drivers were legally impaired (80 mg% or greater), 28 (6,1%) had a BAC between 50 and 70 mg% and 400 (86,9%) had a BAC less than 49 mg%. (Author/TRRL)