城市道路类型对驾驶人工作负荷的影响

发布时间：2019-02-27 21:14

【摘要】：为研究城市道路不同路段类型对驾驶人工作负荷的影响,招募了16名被试驾驶人,在选定的城市道路试验路线上,开展了实车试验。以心率增长率(GRHR)、心率变异性(HRV)、心率变异性时域指标(RMSSD)和心率变异性频域指标(LF)值作为驾驶人工作负荷表征指标,分析在各种路段类型下被试驾驶人工作负荷的差异。研究结果表明:城市道路不同路段类型对驾驶人的工作负荷有显著的影响;驾驶人通过交叉口时的工作负荷明显高于在非交叉口路段的工作负荷;通过平面交叉口时,左转的工作负荷高于右转和直行;通过立交桥时,在匝道上的工作负荷高于上跨及下穿立交桥时的工作负荷;车速对驾驶人的工作负荷也有较大影响,工作负荷随车辆行驶速度的提高而增加。研究结果可以为道路线形设计提供理论依据。
[Abstract]:In order to study the influence of different road sections on drivers' workload, 16 drivers were recruited to carry out real vehicle tests on selected urban road test routes. The time domain index (RMSSD) of heart rate variability (GRHR),) and the frequency domain index (LF) of heart rate variability (HRV) were used to characterize the driver's workload. The differences of the workload of the drivers under different road sections were analyzed. The results show that different road types of urban roads have a significant impact on the workload of drivers, and that the workload of drivers passing through intersections is significantly higher than that of non-intersection sections, and that the working load of drivers passing through intersections is significantly higher than that of non-intersection sections. When crossing the intersection, the workload of left-turn is higher than that of right-turn and straight-way, and the workload on ramp is higher than that of upper-span and down-crossing when crossing overpass. The speed also has a great influence on the work load of the driver, and the workload increases with the increase of the speed of the vehicle. The results can provide theoretical basis for road alignment design.
【作者单位】：长安大学汽车学院;
【基金】：国家自然科学基金项目(61374196) 教育部长江学者与创新团队支持计划项目(IRT1286) 陕西省自然科学基金重点项目(2012JZ8004)
【分类号】：U491.25

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