有轨电车信号系统平交路口信号灯控制策略研究

发布时间：2018-05-19 12:38

本文选题：有轨电车 + 交叉口　；参考：《兰州交通大学》2015年硕士论文

【摘要】：近年来,随着我国社会经济和城市经济快速发展,致使城市化水平不断提高,城市人口大量增长,城市交通问题日益严重,而发展公共交通作为当今缓解城市交通压力的方式已成为共识。同时,经过全面的技术升级,沉寂百余年之久的有轨电车又重新登上了改善城市交通的历史舞台。现代有轨电车作为一种新型的公共交通工具,与传统的公共交通工具相比,车辆外观靓丽,在技术装备上融入诸多现代化高科技元素,具备更高的运行速度、更舒适的乘车空间以及快捷的换乘方式,已成为城市公共交通不可或缺的一部分。目前,我国的很多城市都在规划建设现代有轨电车系统。但是,有轨电车相比于社会车辆、常规公交和轻轨等交通方式有其独特的行驶特性,尤其对于有轨电车平交路口信号的控制方式,对确保有轨电车的高效运行,提高有轨电车的服务水平,降低乘客在平交路口的延误具有重要意义。因此,本文首先深入研究了现代有轨电车及城市交通信号控制理论基础;同时为了有轨电车在平交路口信号优先控制获取有效的车辆信息,文中研究了有轨电车信号优先车辆检测技术,并针对环形线圈车辆检测技术研究了其工作原理,对环形线圈车辆检测器的硬件进行设计,结合硬件通过系统功能需求分析对软件进行了设计,实现为有轨电车交叉口信号优先控制提供车辆信息;进而,作为论文研究的重点,文中对有轨电车交叉口信号优先控制策略进行了设计,详细叙述了被动式信号优先控制策略与主动式信号优先控制策略。其中,为了确保交叉口有轨电车的优先通行,主动式信号优先将是本文研究的重中之重。而主动式信号优先包括绝对优先、完全优先、部分优先和实时优先,文中对这些优先策略的控制逻辑与流程进行了详细描述与设计;同时,为了更好对交叉口信号控制,获取有效地有轨电车通过交叉口的车辆信息是必不可少的,文中研究了交叉口信号优先车辆检测设备的设置位置,并给出了设置实例。研究了有轨电车交叉口信号优先控制策略,同时在考量研究成本、时间及可行性的情形下,本文选择模拟仿真作为本文的研究方法。根据研究理论,以固定配时信号控制为基础,将本文构建的绝对优先、完全优先、部分优先3种优先策略,以微观交通仿真软件VISSIM为模拟平台,建立单点交叉口路网仿真模型,模拟不同的同向交通量、横向交通量与有轨电车不同班次的组合情景下,分析有轨电车、同向社会车辆、横向社会车辆的延误,综合比较信号优先控制策略的适用范围,并决定各种情景下的最佳控制策略,归纳结论和建议,作为实际应用的参考。
[Abstract]:In recent years, with the rapid development of our country's social economy and urban economy, the level of urbanization has been continuously improved, the urban population has increased a lot, and the urban traffic problems have become more and more serious. The development of public transport as a way to relieve the pressure of urban traffic has become a consensus. At the same time, after a comprehensive technological upgrading, trams, which have been silent for more than a hundred years, have once again stepped onto the historical stage of improving urban traffic. As a new type of public transport vehicle, modern tram has a beautiful appearance compared with traditional public transport, and has a higher running speed by incorporating many modern high-tech elements into its technical equipment. More comfortable ride space and fast transfer mode have become an indispensable part of urban public transport. At present, many cities in our country are planning to build a modern tram system. However, compared with social vehicles, conventional public transport and light rail transportation modes have their unique driving characteristics, especially for the control of tram intersection signals, to ensure the efficient operation of trams. It is of great significance to improve the service level of tram and reduce the delay of passengers at the intersection. Therefore, in this paper, the theoretical foundation of modern tram and urban traffic signal control is deeply studied, and in order to obtain effective vehicle information for tram signal priority control at intersection, In this paper, the detection technology of tram signal priority vehicle is studied, and the working principle of the loop coil vehicle detection technology is studied, and the hardware of the loop coil vehicle detector is designed. The software is designed to provide vehicle information for the signal priority control of tram intersection through the analysis of the system function requirements of the hardware, and then, as the focus of the paper, In this paper, the signal priority control strategy of tram intersection is designed, and the passive signal priority control strategy and the active signal priority control strategy are described in detail. In order to ensure the priority of tram at intersections, the priority of active signal will be the most important in this paper. The active signal priority includes absolute priority, complete priority, partial priority and real-time priority. The control logic and process of these priority strategies are described and designed in detail. It is essential to obtain the vehicle information of tram crossing effectively. This paper studies the setting position of signal-priority vehicle detection equipment at intersection and gives an example of setting up. The signal priority control strategy of tram intersection is studied. At the same time, under the consideration of research cost, time and feasibility, simulation is chosen as the research method in this paper. According to the research theory, on the basis of fixed timing signal control, three priority strategies, absolute priority, complete priority and partial priority, are constructed in this paper. The simulation model of single point intersection road network is established on the platform of microscopic traffic simulation software VISSIM. Under the simulation of different codirectional traffic volume, transverse traffic volume and different frequency of tram, the delay of tram, codirectional social vehicle and lateral social vehicle is analyzed, and the applicable range of signal priority control strategy is compared synthetically. The optimal control strategy, conclusions and suggestions are determined for practical application.
【学位授予单位】：兰州交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491.54

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