车路协同环境下基于路径的信号协调优化模型

发布时间：2018-03-15 18:32

本文选题：交通运输系统工程　切入点：交通信号协调　出处：《吉林大学学报(工学版)》2014年02期 　论文类型：期刊论文

【摘要】：基于车路协同环境下的动态路径流量、初始排队长度等信息及车辆-信号控制系统实时通信的运行环境,研究并建立了双向协调路径、车辆动态速度和交叉口配时参数的集成优化模型,克服了传统交叉口信号协调方法中路段行驶车速固定、受初始排队长度影响显著和不能优化协调路径的缺点。模型以协调路径流量与速度乘积最大为目标,以双向协调路径、相位差、车辆推荐速度等为决策变量进行优化,并建立了排队、车速、信号配时参数等一系列约束条件以确保集成优化解的可行性,从而实现了协调控制系统不停车通过量最大且延误最小的目的。与经典Maxband模型及Synchro软件的信号协调控制优化方案的比较表明,本文模型能够显著地提高绿波带宽,降低停车次数,提高协调效益。对路径流量波动、路段长度、最大限速及饱和度的敏感性分析进一步表明本模型能适用于不同的道路和交通条件,实时优化协调路径、车速及相位差。
[Abstract]:Based on the information of dynamic path flow, initial queue length and the real-time communication environment of vehicle-signal control system, a bidirectional coordinated path is studied and established. The integrated optimization model of vehicle dynamic speed and intersection timing parameters overcomes the traditional intersection signal coordination method in which the road speed is fixed. Due to the influence of the initial queue length, the model can not optimize the coordinated path. The model takes the maximum product of the coordinated path flow and velocity as the goal, and takes the bidirectional coordinated path, phase difference and recommended vehicle speed as decision variables to optimize the model. A series of constraints, such as queue, speed and signal timing parameters, are established to ensure the feasibility of integrating the optimal solution. Compared with the classical Maxband model and the signal coordination control optimization scheme of Synchro software, this model can significantly increase the green wave bandwidth, and achieve the goal of maximum no-stop throughput and minimum delay in the coordinated control system, and compared with the classical Maxband model and the signal coordination control optimization scheme of Synchro software, the proposed model can significantly improve the green wave bandwidth. The sensitivity analysis of path flow fluctuation, section length, maximum speed limit and saturation further shows that this model can be applied to different road and traffic conditions and optimize the coordinated path in real time. Speed and phase difference.
【作者单位】：同济大学道路与交通工程教育部重点实验室;
【基金】：“863”国家高技术研究发展计划项目(2011AA110404) 国家自然科学基金项目(51178345,11272067)
【分类号】：U491

【参考文献】