Research on dementia older drivers and proposal of check system of their characteristics

随着老龄化社会的发展，有许多老年司机患有痴呆症。他们在不知道自己很危险的情况下开车。在本研究中，我们调查了老年人的驾驶行为以及认知特征。主要研究内容如下：(1)基于测量数据的驾驶性能监测系统：研制了一种带有测量系统的专用车辆，对驾驶行为及其性能进行评价。我们提出了一种评价驾驶特征的方法，将一个人的驾驶特征与驾校教师的驾驶特征进行比较。(2)认知不良条件下的驾驶行为：考察认知不良条件下的驾驶行为和驾驶特征。利用驾驶模拟器对醉酒驾驶行为进行了实验研究，得出了醉酒驾驶行为的特征。(3)老年人特征：参加某镇老年人体检。收集了包括痴呆症测试在内的400余项数据。(4)老年人驾驶特征：建立了驾校汽车的测量系统，并对老年人的驾驶特征进行了长程测量。通过对视频数据的分析，提取出许多老年驾驶员的不安全行为，并将其归类为几个点。(5)老年人特征评价工具的提出：由此，我们提出了一种新的老年人特征评价工具。

By growth of aging society, there exist many older drivers who are dementia. They drive cars without knowing they are very dangerous. There are may traffic accidents due to such drivers.In this study, we investigate driving performance of older people as well as cognition characteristics. Research contents are as follows.(1) Monitoring system for driving performance using measurement data : We made a special vehicle which had measuring system to evaluate driving behavior and its performance. We propose method to evaluate driving characteristics in which a person's driving characteristics is compared with that of driving school instructor.(2) Driving behavior under poor cognitive condition : We investigate driving behavior and characteristics under poor cognitive condition. We made experiment using driving simulator for drunken driver behavior and got characteristics of such condition.(3) Characteristics of older people : We took part in medical examination of older people in a town. More than 400 data were collected including dementia test.(4) Driving characteristics of older people : We set measuring system for a car of driving school, and made a long rage measurement of driving characteristics of older people. By examining video data, we extracted many unsafe behaviors of older drivers which were classified into several points.(5) Proposal of tool for evaluation of older people's characteristics : As a consequence, we propose a new tool for evaluation for older people's characteristics.