Li Jingyang, Guo Fengxiang, Li Wei, Tian Bijiang, Chen Zheng, Qu Sirou
Faculty of Transportation and Engineering, Kunming University of Science and Technology, Chenggong Campus, Kunming 650500, China.
National Engineering Laboratory for Surface Transportation Weather Impacts Prevention, Broadvision Engineering Consultants Co., Ltd., Kunming 650000, China.
Heliyon. 2023 Aug 1;9(8):e18756. doi: 10.1016/j.heliyon.2023.e18756. eCollection 2023 Aug.
Considerable evidence suggests that the decline in physiological abilities prevalent in older drivers leads to a reduction in the visual and psychomotor functions required for safe driving. The purpose of this study is to further investigate the differences in driving behavior between older and younger drivers and to describe the change process of driving behavior. In this study, 19 younger and older drivers each were recruited for a driving simulation experiment that included five scenarios. Driving operation data, eye movement data, and physiological data of drivers in five conflict scenarios were collected. The differences in driving behaviors between the two groups were also compared and analyzed, on which the thresholds of different driving behavior nodes were determined and driving behavior graphs were established. The results show that the eye movement nodes of older drivers appear later in five scenarios, the operational nodes of older people appear later in two steering scenarios, and are closer to those of younger drivers in three straight ahead scenarios, indicating that older drivers were later in observing and collecting traffic information, and later in applying brakes and steering to avoid conflicts when steering. The study provides a reference for the analysis of driving behavior and driving safety of older people.
大量证据表明，老年驾驶员中普遍存在的生理能力下降会导致安全驾驶所需的视觉和心理运动功能降低。本研究的目的是进一步调查老年驾驶员和年轻驾驶员在驾驶行为上的差异，并描述驾驶行为的变化过程。在本研究中，分别招募了19名年轻驾驶员和老年驾驶员参与一项包括五个场景的驾驶模拟实验。收集了驾驶员在五个冲突场景中的驾驶操作数据、眼动数据和生理数据。还对两组驾驶员的驾驶行为差异进行了比较和分析，在此基础上确定了不同驾驶行为节点的阈值并建立了驾驶行为图。结果表明，老年驾驶员的眼动节点在五个场景中出现得较晚，老年人的操作节点在两个转向场景中出现得较晚，而在三个直行场景中与年轻驾驶员的操作节点接近，这表明老年驾驶员在观察和收集交通信息方面较晚，在转向时应用刹车和转向以避免冲突方面也较晚。该研究为分析老年人的驾驶行为和驾驶安全性提供了参考。
