Samenvatting
The relative contributions of driver impairments and of age-related factors to an individual driver's risk of motor vehicle fatality were examined. It was found that drivers of all ages were at considerably greater risk of being killed when driving while impaired (BAC>0.95) than when driving while not impaired. The combined effects of age and of alcohol in determining the relative probability of fatal collision reached their maximum for the very young driver age 16- 17.