The German Roadside Survey (GRS) 1992-1994 (Krueger, 1997) provided the information about the prevalence of DWI driving in Germany. By comparing these data to information about accidents in Germany within the same time period, a risk analysis is done which not only includes the "usual" variables like age and sex of the driver and the time of the trips, but also evaluates the effect of passengers present in the vehicles. As indicated by previous analyses (Reiss, 1995; Krueger et al, 1997), a protective effect of passengers is found. That means, when passengers are present, the risk of an accident decreases. In order to further understand this effect, results from field observations are presented. From these results, an attentional model of the passengers' effect is suggested. (A)
Samenvatting