快速路入口匝道与关联交叉口协调控制方法研究

发布时间：2018-05-04 22:01

本文选题：交通工程 + 匝道控制　；参考：《北京交通大学》2017年硕士论文

【摘要】：快速路作为城市最高等级的道路主要满足大容量、远距离的出行需求,但是,其早期规划的不足和管理方法的低效使得快速路难以发挥其快速、高效的作用。匝道控制是一种有效的保证快速路系统运行的方法,通过控制匝道进出流量的大小来保证主线不受较大影响。这种转移交通压力的方法往往容易造成关联交叉口的拥堵,交叉口的拥堵反过来又会加剧快速路拥堵。本文综合考虑快速路与关联交叉口交通状态的差异,通过对快速路与关联交叉口进行协调控制,实现整体运行效率的最大化。首先对快速路及关联交叉口的基本交通特性进行了分析,提出了快速路出入口匝道与关联交叉口的协调控制的影响因素,并探讨了城市快速路匝道系统协调控制的策略;其次,深入分析国内外大量快速路匝道控制理论,并以分层控制的理念为基础,建立基于主线剩余能力、匝道入口影响因子的匝道与关联交叉口协调控制模型;然后,确定了交叉口协调原则,对交叉口信号协调策略进行分析,完善交叉口部分协调控制机理的构建,并以标准四相位交叉口为例进行分析;最后,以北京西四环四季青桥交叉口与下游匝道路段为研究对象,进行交通数据采集和处理,并标定、构建了 VISSIM仿真模型。对实施协调控制策略前后的各项拥堵指标进行对比,仿真结果显示,本文所建立的方法能够明显改善匝道排队现象,并降低交叉口拥堵和排队时间。
[Abstract]:Expressway, as the highest grade road in city, mainly meets the demand of large capacity and long distance travel. However, the shortage of early planning and the low efficiency of management methods make it difficult for expressway to play its role quickly and efficiently. Ramp control is an effective way to ensure the operation of expressway system. This method of transferring traffic pressure is easy to cause traffic congestion at related intersections, which in turn will aggravate the traffic congestion of expressway. In this paper, the traffic state difference between expressway and related intersection is considered synthetically, and the overall operation efficiency is maximized through coordinated control of expressway and related intersection. Firstly, the basic traffic characteristics of expressway and related intersections are analyzed, and the factors influencing the coordinated control of expressway ramp and related intersections are put forward, and the coordinated control strategies of urban expressway ramp system are discussed. Based on the theory of layering control, a coordinated control model of ramp and related intersection is established based on the main line residual ability and ramp entrance influence factors. Then, the paper analyzes the theory of ramp control at home and abroad, and establishes the coordinated control model of ramp and related intersection based on the principle of hierarchical control. The coordination principle of intersection is determined, the signal coordination strategy of intersection is analyzed, the construction of coordination control mechanism of intersection is improved, and the standard four-phase intersection is taken as an example. Finally, Taking the intersection of Sijiqing Bridge in the West fourth Ring of Beijing as the research object, the traffic data is collected, processed and calibrated, and the VISSIM simulation model is constructed. The comparison of congestion indexes before and after the implementation of coordinated control strategy is carried out. The simulation results show that the proposed method can significantly improve the ramp queue phenomenon and reduce traffic congestion and queue time at intersections.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U491.54

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