Samenvatting
The 1975 roadside survey of drinking and driving, the fifth in a series of annual surveys, was held the last weeks of October. Following a new procedure tested in the 1974 survey, randomly selected motorists were given a brief interview and a breath test at their cars. The new, NHTSA-developed portable breath testers were used succesfully except for power supply problems with one unit. Two crews worked concurrently Wednesday through Saturday nights, from 7:30 PM until after 2:00 AM at 15 locations in Kansas City.