Samenvatting
In the United States, pedestrian deaths account for nearly 20% of all traffic fatalities. During darkness the pedestrian's risk is increased. This risk is further increased if a pedestrian is wearing dark clothing or must travel on a road way concurrently with a driver who has been drinking. In the laboratory phase of this study it was found that at low levels of illumination an individual's sensitivity to contrast decreases as his blood alcohol level increases.