基于SUMO仿真的典型城市信号交叉口改进方案及其评价

发布时间：2018-04-13 22:08

本文选题：信号交叉口 + 交通仿真　；参考：《长安大学》2014年硕士论文

【摘要】：信号交叉口的交通流研究在城市道路交通系统中具有极其重要的作用。如果交叉口处的交通信号配时不科学，路权不够明确，则会导致交叉口堵塞，甚至引发交通事故，给整个路网造成恶劣的影响。因此，对城市信号交叉口进行改进方案的评价，从交通系统的组织和管理方面入手来提高交叉口的通行能力是缓解我国日益严重的交通问题的有效途径。本文对城市信号交叉口的评价体系进行了分析，明确列出了交叉口改进方案评价的过程，包括明确评价指标、筛选改进方案、分析改进方案以及方案评价四个步骤，并选取延误、平均排队长度、噪声污染等指标作为本文的评价指标，选取交通仿真方法为本文的分析方法，选取层次分析法为本文的评价方法。在理论分析和研究的基础上，本文紧接着对具体实例进行了仿真分析，即以西安市小寨十字交叉口为研究对象，在设定的高中低三种不同的交通需求下，通过交通仿真技术对其进行现有方案以及改进方案的分析工作，得到选取的评价指标的具体数值，为之后的方案评价提供数据支持。最后根据选取的评价指标建立评价模型，以仿真分析得到的结果为依据，利用层次分析法进行方案对比，，直观地给出各方案的评价结果，选取出不同交通需求下的交叉口的最优方案，有效地优化了交叉口。
[Abstract]:The study of traffic flow at signalized intersections plays an extremely important role in urban road traffic system.If the traffic signal timing at the intersection is not scientific and the right of the road is not clear enough, it will lead to traffic jam at the intersection and even cause traffic accident, which will have a bad effect on the whole road network.Therefore, it is an effective way to alleviate the increasingly serious traffic problems in our country by evaluating the improvement scheme of urban signalized intersections and improving the traffic capacity of intersections from the aspects of traffic system organization and management.In this paper, the evaluation system of urban signalized intersection is analyzed, and the process of evaluation of the improved scheme of intersection is clearly listed, including clear evaluation index, screening of improvement scheme, analysis of improvement scheme and four steps of scheme evaluation.The delay, average queue length and noise pollution are selected as the evaluation indexes, the traffic simulation method is chosen as the analysis method, and the AHP method is selected as the evaluation method in this paper.On the basis of theoretical analysis and research, this paper then carries on the simulation analysis to the concrete example, namely takes the Xi'an Xiaozhai intersection as the research object, under the setting three kinds of different traffic demand,Through the analysis of the existing scheme and the improved scheme through the traffic simulation technology, the concrete value of the selected evaluation index is obtained, which provides the data support for the later scheme evaluation.Finally, the evaluation model is established according to the selected evaluation index. Based on the result of simulation analysis, the scheme is compared by AHP, and the evaluation results of each scheme are given intuitively.The optimal scheme of intersections with different traffic demands is selected, and the intersection is effectively optimized.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.23

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