左转逆向可变车道的优化设计与控制策略

发布时间：2018-04-19 04:32

本文选题：左转交通组织 + 左转逆向可变车道　；参考：《山东大学》2017年硕士论文

【摘要】：城市交通拥堵已经成为一个普遍存在的国际性难题,交叉口作为城市路网的关键节点,不同转向机动车流、非机动车流、行人流在此交织严重影响了交叉口的通行能力。左转交通流在交叉口产生的冲突点较多、造成的事故率较高而且对交叉口通行能力的影响较大。随着交通需求的增加,常规的左转交通组织方式虽在很大程度上已经提升了交叉口的资源利用率,但是交通堵塞状况仍然没有得到改善。在对左转交通组织的探索中,左转逆向可变车道的应用在很大程度上提高了道路资源的时空利用率,但是在使用的过程中也存在各种问题亟需改善。论文在大量查阅左转交通组织设计相关文献的基础上,从左转专用道的设计、左转专用相位的设计、左弯待转区的设计、可变车道、禁左等方面进行了综述,总结对比现有研究成果,对左转交通组织展开研究。论文首先对左转车流交通特性进行分析,对比分析设有左转逆向可变车道与常规左转交通组织方式下的左转车流交通特性。采用视频拍摄和图像处理的调查方式得到左转逆向可变车道的车辆饱和车头时距和通行能力,为进一步调整左转逆向可变车道设计方案做好铺垫。根据左转交通组织特性和左转交通组织原则,对常规左转交通组织方式进行研究并分析其影响。然后,对左转逆向可变车道的设计进行研究:从交叉口几何条件、饱和度条件两个方面对左转逆向可变车道设置的基本条件进行分析;通过排队论和概率论方法对左转逆向可变车道设置的流量条件展开分析;根据左转交通渠化的特点对左转逆向可变车道的渠化设计进行研究,对不同情况下的长度、宽度进行分析;在对上述左转逆向可变车道交通特性进行分析的基础上,对左转逆向可变车道设计方案的预信号相位和交叉口信号配时方案提出调整方法;为保证车道设计和信号控制方案得到顺利实施,对可变车道的诱导和监控等配套设施的安装进行分析。最后,论文利用经十路-舜耕路交叉口对文中车道设计和控制方案方法进行验证,对其左转逆向可变车道的设计方案进行优化,利用VISSIM软件仿真现状交通组织方案和优化设计方案并对仿真结果进行对比分析。
[Abstract]:Urban traffic congestion has become a common international problem. As a key node of urban road network, intersections have different steering vehicle flow, non-motor vehicle flow and pedestrian flow, which seriously affect the traffic capacity of intersections.The left-turn traffic flow produces more conflict points at the intersection, resulting in a higher accident rate and a greater impact on the traffic capacity of the intersection.With the increase of traffic demand, the conventional left-turn traffic organization has improved the utilization ratio of intersection resources to a great extent, but the traffic jam has not been improved.In the exploration of left turn traffic organization, the application of the left turn reverse variable lane improves the space-time utilization ratio of road resources to a great extent, but there are also various problems in the process of use that need to be improved.On the basis of consulting a large number of relevant documents on the design of left-turn traffic organization, this paper summarizes the design of the left-turn special lane, the special phase of the left-turn, the design of the left-turn waiting area, the variable lane, the forbidden left, and so on.To summarize and compare the existing research results, the left-turn traffic organization is studied.Firstly, the traffic characteristics of left-turn traffic flow are analyzed, and the traffic characteristics of left-turn traffic flow with left-turn reverse variable lane and conventional left-turn traffic organization mode are compared and analyzed.The method of video capture and image processing is used to obtain the saturated headway distance and capacity of the vehicle in the left turn reverse variable lane, which lays the groundwork for further adjusting the design scheme of the left turn reverse variable lane.According to the characteristics of left turn traffic organization and the principle of left turn traffic organization, this paper studies the conventional left turn traffic organization mode and analyzes its influence.Then, the design of the left turn reverse variable lane is studied: the basic conditions of the left turn reverse variable lane setting are analyzed from two aspects of intersection geometry condition and saturation condition;Based on the queuing theory and probability theory, the flow conditions of the left turn reverse variable lane are analyzed, and the design of the left turn reverse variable lane is studied according to the characteristics of the left turn traffic channelization, and the length of the left turn reverse variable lane is studied under different conditions.Based on the analysis of the traffic characteristics of the left-turn reverse variable lane, the adjustment method of the pre-signal phase and the intersection signal timing scheme of the left-turn reverse variable lane design scheme is put forward.In order to ensure the smooth implementation of lane design and signal control scheme, the installation of auxiliary facilities such as variable lane guidance and monitoring is analyzed.Finally, the paper verifies the method of lane design and control through the intersection of Shir-Shungeng Road, and optimizes the design scheme of the left turn and reverse variable lane.The traffic organization scheme and optimal design scheme are simulated by VISSIM software, and the simulation results are compared and analyzed.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U491

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