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

随着老龄化社会的发展，出现了许多老年痴呆司机。他们开车却不知道自己很危险。有许多交通事故是由这些司机造成的。在本研究中，我们考察了老年人的驾驶表现和认知特征。研究内容如下：(1)基于测量数据的驾驶性能监控系统：我们制造了一种具有测量系统的专用车辆，用于评估驾驶行为和驾驶性能。我们提出了一种将个人的驾驶特征与驾校教师的驾驶特征进行比较的方法来评估驾驶特征。(2)不良认知状态下的驾驶行为：考察不良认知状态下的驾驶行为及其特征。利用驾驶模拟器对醉酒驾驶人的行为进行了实验，得到了醉酒驾驶人的行为特征。(3)老年人特点：我们参加了一个城镇老年人体检。收集了包括痴呆症测试在内的400多项数据。(4)老年人驾驶特征：我们为驾校的一辆车设置了测量系统，对老年人的驾驶特征进行了长时间的测量。通过对视频数据的分析，我们提取了许多老年驾驶员的不安全行为，并将其分类为几个点。(5)老年人特征评价工具的提出：因此，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.