高原公路不同天气状况对驾驶人工作负荷的影响

为研究高原公路不同天气状况对驾驶人工作负荷的影响,共选定了32名被试驾驶人,包括7名外地驾驶员和25名本地驾驶员,在选定的试验路线上进行了实车试验。在晴天、雨天、雪天、雪天+大雾(能见度5米)的4种不同天气状况下,选取心率变异性RMSSD、SDNN和PNN50值和心率增长率作为驾驶人工作负荷表征指标,研究在高原公路不同天气状况下被试驾驶人工作负荷变化规律。研究结果表明：高原公路不同天气状况对驾驶人的工作负荷有显著的影响,驾驶人工作负荷因天气条件的恶劣程度和海拔高度而增加,道路的天气状况、能见度及海拔高度的共同作用对驾驶员工作负荷影响最大。

The influence of different weather conditions on driver"s workload on plateau road

In order to study the influence of different weather conditions on the working load of drivers on the plateau road, 32 drivers were selected, including 7 drivers from other places and 25 drivers from local areas. In the four different weather conditions of sunny, rainy, snowy, snowy + fog (visibility 5 meters), RMSSD, SDNN and pNN50 values of heart rate variability and heart rate growth rate were selected as the indicators of driver"s workload to study the change rule of driver"s workload in different weather conditions of plateau road. The results show that different weather conditions on the plateau road have a significant impact on the driver"s workload. The driver"s workload increases due to the severity of the weather conditions and altitude, and the combined effect of the weather conditions, visibility and altitude of the road has the greatest impact on the driver"s workload.