高原公路线形组合路段驾驶员心率变化特性试验分析

Analysis of heart rate variation characteristics of drivers driving on plateau highway alignment combination section

为了掌握驾驶员在高原环境下行车时的心理和生理反应状况,提高高原公路行车安全性,利用生物反馈仪等设备对314国道高原路段上行车的驾驶员进行实地行车检测。在理论分析的基础上,整理分析实测数据,建立驾驶员心率增长率和高原区公路线形组合、海拔之间的关系模型。分析结果表明,驾驶员的心率增长率会随着海拔的升高而增高;上行和下行时,线形组合值的增大均导致驾驶员心率增长率的增加,并且增加的趋势基本保持一致;海拔和线形2因素一起作用时,驾驶员心率变化更显著,海拔越高、线形组合值越大,驾驶员心率增长率越大。

In order to determine the psychological and physiological reactions of drivers driving in a plateau environment,improve the traffic safety of plateau highway,a driving test was carried out using biofeedback instruments on a plateau section of national highway 314. On the basis of theoretical analysis and data sorting,a model was built for the relationships between driver＇ s growth of heart rate,plateau highway alignment combination and altitude. The analysis results show that the driver ＇ s growth of heart rate will increase with the increase of altitude. The enlargement of alignment combination will lead to the increase of driver＇ s growth of heart rate when driving up and down. The driver＇ s heart rate will vary more substantially when altitude and alignment combination work together. The higher the altitude is and the greater the alignment combination value is,the greater the driver＇ s growth of heart rate will be.