Research on Relationship between Driving Ability and Cognitive Impairment of Elderly Driver

Abstract

Recently in Japan, traffic accidents caused by elderly drivers have attracted public attention. Elderly drivers are judged whether they can continue driving based on the results of the cognitive test at the renewal of their driver's license. However, it has not been to lead the reduction of accidents. Therefore, it is important to understand the relationship between driving ability and cognitive impairment for elderly drivers.In this study, we analysis on the relationship between driving ability and cognitive impairment for elderly drivers. The driving ability evaluates using the driving behavior at intersections where driving operations are difficult. In conclusion, a model for evaluating the cognitive impairment of an elderly driver can be constructed from the results of driving ability. On the other hand, a model for evaluating the driving behavior of an elderly driver from the result of cognitive test cleared that it needs further improvement.