不同天气状况下高原公路纵坡路段驾驶负荷分析  

Analysis of Driving Load on Longitudinal Slope Section of Plateau Highway Under Different Weather Conditions

作　　者：高超 朱兴林 艾力·斯木吐拉 蒋松强 GAO Chao;ZHU Xinglin;ELI Ismutulla;JIANG Songqiang(School of Transportation and Logistics Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China)

机构地区：[1]新疆农业大学交通与物流工程学院,新疆乌鲁木齐830052

出　　处：《公路工程》2021年第5期169-175,182,共8页Highway Engineering

基　　金：国家自然科学基金资助项目(71761032)。

摘　　要：为研究驾驶员在纵坡路段上行车时不同天气状况对驾驶负荷的影响,在高原公路进行了行车试验,采集了在不同天气状况下的心电信号,进一步分析了在不同天气状况下纵断面线形参数与驾驶员心率增长率之间的关系,并建立了在不同天气状况下驾驶负荷多元线性回归模型。结果表明:天气、海拔高度、坡长和坡度对驾驶负荷有着显著的影响;在海拔高度3000~3500 m纵坡路段,雪天+浓雾恶劣天气的驾驶负荷明显高于晴朗天气的驾驶负荷;在相同路段及海拔高度下,雪天+浓雾恶劣天气对驾驶负荷影响更为显著。当坡长超过200 m时,心率增长率对坡长的变化较为敏感;当坡度大于5%(陡坡)时,心率增长率对坡度的变化较为敏感。In order to study the influence of different weather conditions on the driving load of drivers on the longitudinal section,the driving test was carried out on the plateau highway,the ECG signals were collected under different weather conditions,and the relationship between the linear parameters of the longitudinal section and the heart rate growth rate of drivers was further analyzed under different weather conditions,and the multiple driving loads under different weather conditions were established Meta linear regression model.The results show that weather,altitude,slope length and slope have a significant impact on driving load;in the longitudinal slope section with altitude of 3000~3500 m,the driving load in the severe weather of snow+fog(visibility 5 m)is significantly higher than that in the sunny weather;in the same section and altitude,the driving load in the severe weather of snow+fog(visibility 5 m)is more significant.When the slope length is more than 200 m,the heart rate growth rate is more sensitive to the change of slope length;when the slope is more than 5%(steep slope),the heart rate growth rate is more sensitive to the change of slope.

关 键 词：高原公路 纵坡坡度 坡长 天气 驾驶负荷 

分 类 号：U491.254[交通运输工程—交通运输规划与管理]