基于转向熵的长隧道路段操纵特性分析  

Analysis on steering characteristics in long tunnel section based on steering entropy

作　　者：李永庆[1] 阎莹[1] LI Yongqing;YAN Ying(College of Transportation Engineering,Chang′an University,Xi′an 710054,China)

机构地区：[1]长安大学运输工程学院,陕西西安710054

出　　处：《山东理工大学学报（自然科学版）》2022年第5期81-86,共6页Journal of Shandong University of Technology:Natural Science Edition

摘　　要：为了探究山区高速公路隧道路段驾驶员转向操纵特性的表现情况,招募了5名经验丰富的驾驶员,于包茂高速(包头-茂名)路段南五台隧道(2564 m)进行了转向操纵特性实车驾驶试验,基于转向熵特征指标对驾驶员转向操纵特征值进行了计算。在分析不同路段试验数据过程中,将各路段划分成若干个区间,通过分析各段核密度、概率密度、累积分布函数等发现:隧道行车时驾驶员表现出了多维因素耦合作用下演变规律,并从隧道环境、驾驶员生心理特性角度予以解释;开放路段驾驶员操纵特性较隧道内稳定性差,而且表现出了“两极分化”的趋势。研究认为,隧道运行环境下驾驶员行为特性规律相比开放路段更加可控,对于山区高速公路隧道设计和交通安全更加有利。In order to explore the performance of steering control characteristics of drivers in mountain expressway tunnel section,the study recruited five experienced drivers to carry out real vehicle driving test of steering control characteristics in Nanwutai tunnel(2564 m)of Baotou-Maoming Expressway.Based on the steering entropy characteristic index,the driver steering characteristic value is calculated.In the process of analyzing the test data of different sections,the author divides each section into several segments.By analyzing the kernel density,probability density and cumulative distribution function of each section,we found that:when driving in the tunnel,the drivers showed the evolution law under the coupling of multi-dimensional factors,which was explained from the perspective of tunnel environment and drivers′psychological characteristics.In addition,the handling characteristics of drivers in open sections are less stable than those in tunnels,and show a polarization trend.The research shows that the law of driver′s behavior characteristics in tunnel operation environment is more controllable than that in open sections,which is more beneficial to highway tunnel design and traffic safety in mountainous areas.

关 键 词：公路运输 交通安全 实车试验 操纵特性 方向盘转向熵 

分 类 号：U458[建筑科学—桥梁与隧道工程]