摘要
为研究驾驶员心率与山区公路纵断面坡度及车速间的关系,随机选取26名驾驶员在山区三级公路进行实车试验。利用动态生理仪采集驾驶员行车时的心率数据,GPS采集试验车辆的实时车速数据;通过偏相关分析,确定出影响驾驶员在山区公路纵坡路段行车时心率变化的主要因素,并建立上坡方向行车时驾驶员心率增长率与坡度及速度的关系模型。分析结果表明:上坡方向行车时,驾驶员的心率增长率随坡度增大而增加、随速度的增加而增大;因此,考虑驾驶员的舒适性和安全性,建议山区双车道三级公路上坡方向最大安全坡度不宜超过6.8%。
For the sake of studying drivers＇ heart rate as a function of both longitudinal slope of highway in mountainous area and the velocity of vehicle,field experiments were carried out with 26 drivers selected randomly. In the experiments,a dynamic tractor was used to collect the data on drivers＇ heart rate,and GPS was used to collect the data on real-time operational speed. Through partial correlation analysis,the main factors influencing drivers ＇ heart rate were identified,and two models were built,one for the relationship between drivers ＇ heart growth rate and longitudinal slope,and the other for the relationship between the rate and the velocity. The analysis results show that there is a positive correlation between the drivers＇ heart growth rate and both the slope and the velocity. On the basis of drivers＇ comfort and safety,it is suggested that the maximum safety longitudinal slope in the uphill direction should not exceed 6.8% for a third-level highway with two lanes in a mountainous area.
出处
《中国安全科学学报》
CAS
CSCD
北大核心
2017年第9期86-91,共6页
China Safety Science Journal
基金
国家自然科学基金资助(51308449)
陕西省教育厅专项科研计划项目(2013JK0955)
关键词
驾驶员
山区公路
安全坡度
车速
心率增长率
driver
mountainous highway
safety slope
velocity
heart growth rate
