Analysis of Single-Vehicle Accidents in Japan Involving Elderly Drivers
The Japanese population is aging rapidly, raising the number of traffic accidents involving elderly drivers. In Japan, single-vehicle accidents are a serious problem because they often result in fatalities. We analyzed these accidents by vehicle type, age group, and driving area, and found that many of them occurred when young or elderly people were driving light motor vehicles (K-type vehicles) in non-urban areas. We analyzed the characteristics of single-vehicle accidents. On the assumption that the number of rear-end collisions is a proxy for the traffic volume, we used the number of such collisions to control for driving frequency. It was found that in single-vehicle accidents, elderly drivers were at higher risk than other age groups, especially when driving K-type vehicles in non-urban areas. A possible explanation is the higher frequency with which the elderly drive K-type vehicles in areas where there are few other vehicles on the road.