高速公路小客车超越铰接列车实时速度的变化特征  

Variation Characteristics of Running Speed of Car Overtaking Articulated Vehicles on Expressway

作　　者：陈志明 薛志超 王安利 曹贤明 刘世海 唐文涛 侯树展 石磊[3] CHEN Zhiming;XUE Zhichao;WANG Anli;CAO Xianming;LIU Shihai;TANG Wentao;HOU Shuzhan;SHI Lei(Qinglin Branch,Qilu Transportation Development Group,Weifang 262517,China;School of Civil Engineering and Architecture,University of Jinan,Jinan 250022,China;Jinan Northern Traffic Engineering Consulting & Supervision Co.,Ltd.,Shandong Jiaotong University,Jinan 250023,China)

机构地区：[1]齐鲁交通发展集团有限公司青临分公司,山东潍坊262517 [2]济南大学土木建筑学院,山东济南250022 [3]山东交通学院济南北方交通工程咨询监理有限公司,山东济南250023

出　　处：《济南大学学报（自然科学版）》2019年第2期115-118,130,共5页Journal of University of Jinan(Science and Technology)

基　　金：山东省自然科学基金项目(ZR2017LEE027);山东省交通运输科技计划项目(2017B91);济南大学科研基金项目(XKY1616)

摘　　要：以高速公路主流运输车型六轴铰接列车为被超车型,利用统计分析方法,对小客车超越六轴铰接列车的速度变化规律进行了研究,建立了小客车超车时刻t与实时速度v的关系模型。结果显示,小客车超车时刻t与实时速度v的函数关系为v=v_0-0.002t^3+0.047 8t^2-0.111 3t+0.459 5(v_0为初速度),该模型相关系数的平方R^2为0.936 5,表明各超车时刻与样本对应时刻小客车的速度数据均值存在较强的相关性,能够定量描述小客车超越铰接列车过程的速度变化特征,为高速公路超车风险评估提供决策支持。Taking the six-axle articulated vehicles for expressway transportation as the overtaken model,the speed change rules of a car overtaking the six-axis articulated vehicles were researched by means of the statistical analysis method,and the relation model between the overtaking time t and the real-time speed v of the car was established.The results show that the function relation between the overtaking time t and the real-time speed v is v=v 0-0.002t^3+0.047 8t^2-0.111 3t+0.459 5(where v0 is the initial speed).The square of correlation coefficient R^2 of the model is 0.936 5,which indicates that there is a strong correlation between the overtaking time and the mean speed of the car at the corresponding time of the samples,and can quantitatively describe the speed change characteristics of the car overtaking the articulated vehicles.The model can be used to provide decision supports for the overtaking risk assessment on expressways.

关 键 词：高速公路 铰接列车 超车速度 

分 类 号：U491[交通运输工程—交通运输规划与管理]