干线信号协调下的有轨电车优先研究

发布时间：2018-06-21 05:48

本文选题：有轨电车 + 信号优先　；参考：《西南交通大学》2014年硕士论文

【摘要】：现代有轨电车作为一种轨道交通方式,以其运能适中、灵活性较强、绿色环保、乘坐舒适、成本相对地铁,轻轨等轨道交通方式较低等特点备受大中城市的青睐。然而,有轨电车相对社会车辆以及常规公交等交通方式,有其独特的行驶特性,若沿用传统的信号控制方法会对其运行效率及安全产生不利影响。根据有轨电车的行驶特性并结合国内混合交通、道口间距短的行驶环境,如何在道口对有轨电车进行信号优先控制成为一个重要的课题。本文主要根据有轨电车行驶特性及其对道口其他车流的影响,通过信号控制的手段,给予有轨电车在道口时间上的优先通行权以保障其服务水平的同时保证其他车流的通行效益。本文首先分析了有轨电车的运行特性,从单个道口,干线道口信号协调两个层次探讨了有轨电车信号优先对道路上其他社会车辆的影响,其次设计了有轨电车信号优先协调控制系统。该系统包括道路信号协调控制,有轨电车信号优先两个子系统,由交通信息检测模块、道口信号控制模块、干线信号协调模块、有轨电车信号优先模块四大模块构成。道口信号控制模块根据从监测信息模块获得的交通信息计算道口信号的周期,绿信比,有效绿灯时间；干线信号协调模块则在道口信号模块的基础上,以道口整体延误损失为目标函数,利用遗传算法优化干线道口之间的相位差;有轨电车信号优先模块结合有轨电车的滞站调度,绿信号扩展,绿信号提前控制措施,实现有轨电车道口信号相对优先控制。最后设计仿真模型,验证了本文设计的有轨电车道口信号控制可以有效降低干线上的车辆延误,实现了有轨电车道口信号优先。
[Abstract]:As a kind of rail transit mode, modern tram is favored by large and medium cities for its moderate capacity, strong flexibility, green environmental protection, comfortable ride, lower cost compared with subway, light rail and so on. However, the tram has its unique driving characteristics compared with the social vehicles and conventional public transport. If the traditional signal control method is used, the operation efficiency and safety will be adversely affected. According to the running characteristics of tram, combined with the domestic mixed traffic and the short crossing distance, how to control the signal priority of tram at the crossing becomes an important subject. In this paper, according to the tram driving characteristics and its influence on other traffic flow at the crossing, by means of signal control, The tram is given priority in crossing time to guarantee its service level and other traffic efficiency. In this paper, the operation characteristics of tram are analyzed at first, and the influence of tramway signal priority on other social vehicles on the road is discussed from two levels: single crossing and signal coordination of trunk crossing. Secondly, the signal priority coordination control system is designed. The system consists of two subsystems: road signal coordination control, tram signal priority subsystem, traffic information detection module, intersection signal control module, trunk signal coordination module and tram signal priority module. The crossing signal control module calculates the period of the crossing signal according to the traffic information obtained from the monitoring information module, the green signal ratio, the effective green light time, and the trunk signal coordination module on the basis of the crossing signal module. Taking the overall delay loss of the crossing as the objective function, the genetic algorithm is used to optimize the phase difference between the main lines, and the signal priority module of the tram is combined with the dispatching of the tram, the expansion of the green signal, and the control measures of the green signal ahead of time. The relative priority control of tram crossing signal is realized. Finally, the simulation model is designed, which proves that the signal control of tram crossing designed in this paper can effectively reduce the vehicle delay on the trunk line, and realize the priority of tram crossing signal.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U492.433;U491.54

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