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基于心率指标的山区三级公路安全坡度研究

发布时间:2018-01-09 13:33

  本文关键词:基于心率指标的山区三级公路安全坡度研究 出处:《中国安全科学学报》2017年09期  论文类型:期刊论文


  更多相关文章: 驾驶员 山区公路 安全坡度 车速 心率增长率


【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%。
[Abstract]:In order to study the relationship between the heart rate of drivers and the longitudinal slope and speed of mountain highway. 26 drivers were randomly selected to carry out the actual vehicle test on the third-grade highway in mountain area. The real time speed data of the vehicle were collected by using dynamic physiological instrument to collect the heart rate data while driving and GPS to collect the real time speed data of the vehicle. Through partial correlation analysis, the main factors that affect the heart rate change of drivers driving in mountain highway longitudinal slope section are determined. The relationship model of heart rate growth rate with slope and speed is established. The results show that the increasing rate of heart rate increases with the increase of slope. It increases with the increase of velocity. Therefore, considering the comfort and safety of drivers, it is suggested that the maximum safety slope should not exceed 6.8 in the uphill direction of two-lane third-grade highway in mountainous area.
【作者单位】: 西安建筑科技大学土木工程学院;长安大学汽车学院;华北理工大学轻工学院;
【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)
【分类号】:U412.36;U491.254
【正文快照】: 0引言山区公路受地形地势限制,弯道多、线形指标差、视距受限,易导致交通事故。人、车、路、环境组成的公路交通系统,人是核心因素,也是道路交通安全中最关键的因素[1]。相关研究表明:交通事故中与驾驶员有关的占90%[2]。而我国目前的公路线形设计中,对坡度限制主要考虑车辆的

本文编号:1401628

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