摘要
为了研究驾驶员在林区冰雪路面纵坡下坡路段行车过程中的心理生理特性,提高林区冰雪路面行车安全性,选取林区冰雪路面纵坡路段作为试验路段,通过实车试验采集驾驶员行车过程中的运行车速和心电信号等数据,分析驾驶员心率增长率与试验路段线形指标、运行车速之间的关系,建立驾驶员心率增长率与线形指标、运行车速的回归模型。结果表明:在林区冰雪路面纵坡下坡路段行车时,驾驶员心率增长率与坡度、运行车速均呈正相关,而与坡长的相关性不显著;驾驶员心率增长率与坡度、运行车速均存在三次函数关系,心率增长率随着坡度增加而增加,随着运行车速的增大而增大;坡度和运行车速2个因素共同作用时,驾驶员心率增长率增加更显著,坡度越大、运行车速越高,驾驶员心率增长率越大。
In order to study the psychological and physiological characteristics of drivers when drive on the downgrade section of snow-covered road in forestry region and improve the safety of snow-covered road in forestry region,a real driving experiment is carried out on a longitudinal slope section of snow-covered road in forestry region.In the experiment,the operational speed,the ECG signal and other data are collected.The relationship among drivers' heart growth rate alignment index and operational speed is analyzed,and the regression model of drivers' heart growth rate,alignment index and operational speed is established.The result shows that,when driving on downgrade section of snow-covered road in forestry region,the drivers' heart growth rate is positively correlated with the gradient and operational speed, while the correlation between it and the length of the slope is not significant.The drivers' heart growth rate has a quadratic relation with the slope and operational speed.The drivers' heart growth rate increases with the increase of the gradient andof the operational speed.When the gradient and the operational speed combination work together,the driver's heart growth rate increases more significantly.The higher the gradient is and the higher the operational speed is,the greater the driver's heart growth rate is.
作者
叶爱山
刘琦
章玲玲
祝强
YE Ai-shan;ZHANG Ling-ling;ZHU Qiang(School of Business,Suzhou Universityof Science and Technology,Suzhou 215009,China;School of Automobile,Chang'an University,Xi'an 710064,China)
出处
《公路》
北大核心
2018年第12期177-181,共5页
Highway
基金
国家自然科学基金,项目编号51308450
江苏省普通高校学术学位研究生创新计划资助项目,项目编号KYLX16_1355SKCX16_046
关键词
林区道路
冰雪路面
纵坡路段
心率增长率
forestry highway
snow-covered road
longitudinal slope section
heart growth rate
