基于交互反馈的区域诱导与控制协同技术研究

发布时间：2019-05-12 17:28

【摘要】：为了缓解城市区域交通拥堵,降低整个城市区域路网的系统总消耗,本文对区域交通信号控制及交通流诱导协调反馈模式和协调方法模型进行了研究.本文首先定义了两种交通信号控制及交通流诱导协调反馈模式,并对其适用条件进行了分析,随后,本文构建了区域协调临界函数,对协调模式进行判别.建立策略层级下的两种协调模型——一体化协调模型和双层次协调模型,一体化协调模型将交通信号控制及交通流诱导系统的目标进行协调,得到一体化的协同目标函数,双层次协同模型包含两层目标,上层目标为缓解交通拥挤;下层目标为降低系统总费用.最后,采用迭代优化算法求解协调模型并选取长春市某区域路网进行仿真实验.仿真结果表明,协调后的区域路网平均行程时间、平均流量、平均饱和度,以及系统总费用比协调前都有了较为明显和不同程度的降低,本文提出的模型和方法能够有效的改善交通状况,具有较好的应用效果。
[Abstract]:In order to alleviate the traffic congestion and reduce the total system consumption of the whole urban regional road network, this paper studies the coordinated feedback model and coordination method model of regional traffic signal control and traffic flow guidance. In this paper, two kinds of traffic signal control and traffic flow guidance coordination feedback modes are defined, and their applicable conditions are analyzed. Then, this paper constructs a regional coordination critical function to distinguish the coordination mode. Two coordination models at the strategic level, the integrated coordination model and the two-level coordination model, are established. The integrated coordination model coordinates the objectives of the traffic signal control and traffic flow guidance system, and obtains the integrated cooperative objective function. The two-level collaborative model contains two-tier objectives, and the upper level goal is to alleviate traffic congestion. The lower level goal is to reduce the total cost of the system. Finally, the iterative optimization algorithm is used to solve the coordination model and a regional road network in Changchun is selected for simulation experiments. The simulation results show that the average travel time, average flow, average saturation and total cost of the coordinated regional network are obviously and to varying degrees lower than those before coordination. The model and method proposed in this paper can effectively improve the traffic condition and have good application effect.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U491

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