基于最大熵的城郊公路接入口间距研究  

Access Spacing of Suburban Highways Based on Maximum Entropy

作　　者：乔建刚 田亚磊 陈罗刚 戴长永 QIAO Jiangang1 , TIAN Yalei1, CHEN Luogang1 , DAI Changyong2(1.School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, P. R. China; 2.Taiyuan Highway Administration, Taiyuan 030006, Shanxi, P. R. Chin)

机构地区：[1]河北工业大学土木与交通学院,天津300401 [2]太原市公路管理处,山西太原030006

出　　处：《重庆交通大学学报（自然科学版）》2018年第3期88-91,共4页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：国家自然科学基金项目(51108011)

摘　　要：接入口间距对城郊公路的交通安全和通行能力有着较大的影响。通过对城郊公路进行调研,实地采集运行速度、交通量等数据的基础上,提出了接入口间距的定义,把采集数据利用最大熵原理构建模型,运用MATLAB软件求解方程,确定了城郊公路接入口合理间距。并使用仿真软件Synchro以延误、停车次数、平均速度作为评价指标对不同接入口间距进行仿真验算,为解决交通安全问题提出了一种新思路。Access spacing has a great influence on traffic safety and traffic capacity of suburban highway.Through the survey on the suburban highway,the definition of the access spacing was put forward on the basis of the data such as the running speed and traffic volume in the field.Based on the collected data,the model was established by the maximum entropy principle.MATLAB software was used to solve the equation,and the reasonable spacing of suburban highway access was determined.Taking the delay,the number of parking and the average speed as the evaluation index,the distance between different access ports was simulated and checked by the simulation software Synchro,which provided a new way to solve the problem of traffic safety.

关 键 词：道路工程 最大熵 城郊公路 接入口间距 仿真 

分 类 号：U412.35[交通运输工程—道路与铁道工程]