TY  - JOUR
PY  - 1981//
TI  - Detection of impaired drivers through measurement of speed and alignment
JO  - Proceedings International Council on Alcohol, Drugs and Traffic Safety Conference
A1  - Bragg, Barry W. E.
A1  - Dawson, N.
A1  - Kirby, D.
A1  - Goodfellow, G.
SP  - 1341
EP  - 1353
VL  - 1981
IS  - 
N2  - 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)<p /> 
LA  - 
SN  - 
UR  - http://dx.doi.org/
ID  - ref1
ER  -