摘要
为开展城市道路环境中驾驶人的工作负荷评价试验,研究了驾驶人视觉行为与工作负荷之间的相关性。在西安选取了1条典型城市道路路线,包括普通城市道路和城市快速路,招募了25名驾驶人开展实车试验,采用KF2生理检测仪和EyelinkⅡ型眼动仪,分别采集试验中每位驾驶人的心电指标(心率、心率变异性)和视觉行为数据,运用统计学方法分析驾驶人视觉行为参数与心率增长率和心率变异性(低频和相邻2个R-R间期差值的均方根)指标之间的相关性。研究结果表明:城市道路环境中,驾驶人扫视行为参数中的扫视幅度、扫视峰值速度、扫视平均速度和扫视持续时间与心率增长率和心率变异性之间分别存在正相关性(相关系数r≥0.5)和负相关性(r≤-0.5),扫视幅度、扫视峰值速度与工作负荷之间的相关性表现更强,而扫视平均速度、扫视持续时间与工作负荷之间的相关性表现较弱,说明城市道路环境中可以采用扫视行为参数来评价驾驶人的工作负荷。该研究丰富了驾驶人工作负荷的评价指标,为驾驶过程中驾驶人状态监测提供了理论借鉴,有助于提高城市道路环境中驾驶人的行车安全性。
To carry out the workload evaluation test of drivers in urban road environments,the correlation between drivers’visual behavior and workload was studied.A typical urban road was selected in Xi’an,including ordinary urban roads and urban expressways,and 25 participants were recruited to carry out a real road driving test.The KF2 physiological instrument and EyelinkⅡeye tracker were used to collect the electrocardiogram(ECG)indicators(heart rate,heart rate variability)and visual behavior data of each driver during the test.Statistical methods were used to analyze the correlation between drivers’visual behavior parameters and ECG(heart rate growth rate,low frequency,and root mean square of successive heartbeat differences)indicators.The results show that there is a positive correlation between driver’s saccade behavior parameters(saccade amplitude,peak saccade speed,average saccade speed,and saccade duration)and the heart rate growth rate(correlation coefficient r≥0.5),but there is a negative correlation with the heart rate variability(r≤-0.5)in the urban road environment,among them,the correlation between saccade amplitude,peak saccade speed and driver’s workload is stronger,while the correlation between average saccade speed,saccade duration and driver’s workload is weaker.The saccade behavior parameters in urban road environments can be used to evaluate driver’s workload.These findings not only enrich the evaluation indicators of the driver’s workload,but also provide a theoretical reference for the monitoring of the driver’s condition during driving,and help to improve the driving safety in urban road environments.2 tabs,14 figs,26 refs.
作者
郭羽熙
袁伟
陈运星
GUO Yu-xi;YUAN Wei;CHEN Yun-xing(Mental Health Education and Counseling Center,Chang'an University,Xi'an 710064,Shaanxi,China;Key Laboratory for Automotive Transportation Safety Technology of the Ministry of Transport,Chang an University,Xi an 710064,Shaanxi,China)
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2020年第5期97-104,共8页
Journal of Chang’an University(Natural Science Edition)
基金
国家自然科学基金项目(51775053)
长江学者与创新团队项目(IRT_17R95)。
关键词
交通工程
城市道路
驾驶人视觉行为
工作负荷
心率
心率变异性
相关性
traffic engineering
urban road
driver’s visual behavior
workload
heart rate
heart rate variability
correlation
