基于时空资源优化的交叉口交通流动态控制方法研究  

Research on dynamic control method of traffic streams at intersection based on time-space resource optimization

作　　者：梁子君 张卫华 杨伟 严雪 LIANG Zijun;ZHANG Weihua;YANG Wei;YAN Xue(School of Urban Construction and Transportation, Hefei University, Hefei 230601, China;School of Automobile and Traffic Engineering, Hefei University of Technology, Hefei 230009, China;Anhui Transport Consulting and Design Institute Co., Ltd., Hefei 230088, China)

机构地区：[1]合肥学院城市建设与交通学院,安徽合肥230601 [2]合肥工业大学汽车与交通工程学院,安徽合肥230009 [3]安徽省交通规划设计研究总院股份有限公司,安徽合肥230088

出　　处：《合肥工业大学学报（自然科学版）》2020年第9期1240-1249,共10页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51878236);合肥市重点工程建设管理局科研资助项目(2019FFCJ4364);合肥学院人才基金资助项目(18-19RC03)

摘　　要：为了满足交叉口机动车、公交车、非机动车与行人不同交通流的时空资源调配和精细化控制需求,文章提出了一种基于时空资源优化的交叉口交通流动态控制方法。该方法通过对标准十字交叉口36股独立交通流的精细划分和功能区的重新设计,以交通流作为独立控制单元,在交通流组合优化的基础上,提出机动车动态优化、非机动车与行人过街、公交协同优先3种协同的控制逻辑;最后选择合肥市实际交叉口进行了优化设计和逻辑算法的仿真验证。仿真结果表明,该方法使交叉口时空资源得到充分利用,交叉口车辆延误和人总延误明显降低,有效保障了非机动车与行人的过街安全性,行人过街行程时间明显缩短。In order to meet the needs of time-space resource allocation and fine control of cars,buses,non-motor vehicles and pedestrians at intersection,a dynamic control method of traffic streams based on time-space resource optimization was proposed.Through the fine division of 36 independent traffic streams and the redesign of the functional areas at standard intersection,using traffic stream as the independent control unit,on the basis of combinatorial optimization of traffic streams,three control logics of vehicle dynamic optimization,non-motor vehicle and pedestrian crossing and bus coordination priority were proposed.Finally,the optimization design of intersection and the simulation verification of logic algorithms were carried out at actual intersection in Hefei City.The simulation results showed that the time-space resource of intersection was fully utilized by the proposed method,vehicle delay and total human delay at intersection were significantly reduced,the safety of non-motor vehicles and pedestrians crossing can be effectively ensured,and the pedestrians crossing time was significantly shortened.

关 键 词：城市交通 控制逻辑 动态控制 交叉口 交通流 

分 类 号：U491.232[交通运输工程—交通运输规划与管理]