Two groups of ten drinking drivers, representing a typical distribution of age, education, and occupation were selected to have drinking habits near either extreme. Results showed that Heavy drinkers were less impaired than Moderate drinkers at 0.11 BAC (near legal limits), in terms of larger heading and path errors, describing function gain decrements, increased remnant, more discrete task misses, and longer response times. However, the Heavy drinkers were somewhat more impaired at 0.16 BAC than the Moderate drinkers at their 0.11 BAC peak.
Abstract