基于相序变化的单交叉口信号方案过渡优化算法  

A Timing Plan Transition Optimization Algorithm for Isolated Signalized Intersections Based on Phase Change

作　　者：刘小明[1] 李昂 尚春琳 张良 唐少虎[2] LIU Xiaoming;LI Ang;SHANG Chunling;ZHANG liang;TANG Shaohu(North China University of Technology,Beijing Key Laboratory of Urban Traffic Intelligent Control,Beijing 100144,China;Research Center of Urban Systems Engineering,Beijin 100080,China)

机构地区：[1]北方工业大学城市道路交通智能控制技术北京市重点实验室,北京100144 [2]北京城市系统工程研究中心,北京100035

出　　处：《交通工程》2018年第4期29-37,共9页Journal of Transportation Engineering

基　　金：国家自然科学基金(61673022);北京市自然科学基金(8172018);北京市博士后工作经费资助项目(2017-22-078);中国博士后科学基金资助项目(2017M620673)

摘　　要：对于单点交叉口提出了基于相序变化的单点过渡优化算法.首先,建立相序冲突判定模型,判断新旧相位方案相序间的冲突关系,讨论过渡起始时刻的位置;进而,以交叉口排队长度均衡为理念,建立目标函数与排队模型;最后,提出不同相序冲突状况下的过渡周期计算模型,使过渡方案能满足实际交叉口需求,增强整体信号控制效果.仿真对比分析显示,本文算法与经Immediate法、Two-cycle算法相比,交叉口车均延误与平均排队长度均明显降低,有利于过渡周期控制效果与快速性的改善.Based on phase sequence changes, this paper has proposed a single point transition optimization algorithm for isolated signalized intersections. First,the phase sequence conflict decision model is established to determine the conflict relationship between the phase sequence of the new and old phase schemes and discuss the position of the transition starting time. Then,the objective function and the queuing model are established based on the concept of queuing and balancing of queue lengths at intersections. Finally,The transition period calculation model under different phase sequence conflict conditions enables the transition plan to meet the actual intersection requirements and enhance the overall signal control effect. The simulation and comparison analysis shows that compared with the Immediate method and the Two-cycle algorithm,the average delay and the average queue length at the intersection are significantly reduced in this algorithm,which is beneficial to the improvement of the transition period control effect and rapidity.

关 键 词：信号方案过渡 相序冲突 排队长度 

分 类 号：U491[交通运输工程—交通运输规划与管理]