面向排队长度约束的相邻交叉口信号控制方案设计

面向排队长度约束的相邻交叉口信号控制方案设计(任务书,开题报告,外文翻译,论文18000字,CAD图,VISSIM仿真文件)
摘 要
目前而城市关键路段相邻交叉口的组合研究相对较少，在城市道路中，两个信号控制路口的距离较短或特殊原因致使两交叉口之间排队长度受到约束，从而易导致交通死锁（一个交叉口的排队导致上一个路口无法通行）现象。随着城市交通流量的日益增长，死锁现象交易发生，故合理研究此类相邻交叉口的渠化及信号方案组合设计对缓解城市交通拥堵具有重要意义。本文为描述相邻交叉口中的排队现象，基于二流理论，提出了将相邻交叉口之间路段的交通流的实际运行状态转换为二流运行状态的思想。在同一时间段内，由于相邻交叉口之间路段内任意的两个时刻交通流守恒，由此可以建立了单车道路段的排队长度计算模型，并在此基础上，推导出多车道路段平均排队长度模型。并结合干线交叉口信号协调控制的有关原理，提出了排队长度约束条件下的相邻交叉口的信号配时方案。然后，结合实例对方案进行验证，VISSIM仿真结果表明设计方案有效的避免了死锁现象的发生。本文的排队模型计算方法和信号配时方法简单，便于工程实践，可以为城市交通控制系统优化等提供帮助。
关键词:交通控制；交叉口；排队长度约束；信号配时

Abstract
At present, there are relatively few researches on the combination of adjacent intersections in key road sections of cities. In urban roads, the distance between two signal control intersections is short or special causes the queue length between the two intersections to be constrained, which can easily lead to traffic death. The lock (the queuing of an intersection causes the previous intersection to fail). With the increasing of urban traffic flow, deadlock phenomenon occurs. Therefore, reasonable research on canalization and combination of signal schemes at such adjacent intersections is of great significance for alleviating urban traffic congestion. In this paper, in order to describe the queuing phenomenon in adjacent intersections, using the principle of two-flow theory, the idea of changing the actual operation state of traffic flow to the second-stream operation state is proposed. Using the equation of conservation of flow, an equivalent queue length model for road sections of bicycles is established and used here. Based on this, an average queuing length model for multi-vehicle road segments was deduced. Combined with the relevant principles of signal coordination control at the main intersection, a signal timing plan for adjacent intersections under the constraint of queue length is proposed. Then, the scheme is verified with examples. The VISSIM simulation results show that the design scheme effectively avoids the occurrence of deadlock. The queuing model calculation method and signal timing method in this paper are simple, easy for engineering practice, and can provide help for the optimization of urban traffic control systems.
Keywords: traffic control; intersection; queue length constraint; signal timing
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目录
第一章绪论    5
1.1研究背景    5
1.2目的与意义    5
1.3研究现状    6
1.3.1国外研究现状    6
1.3.2国内研究现状    6
1.3.3文献总结    6
1.4 研究（设计）的基本内容、目标、拟采用的技术方案及措施    7
1.4.1 基本内容与方法    7
1.4.2 技术路线    7
1.4.3措施与目的    8
1.4.4 预期成果    8

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第二章基于信号控制排队分析    9
2.1 城市交叉口信号控制理论    9
2.2 饱和流率    9
2.3交叉口排队理论    10
2.3.1交叉口车辆排队长度的定义    10
2.3.2传统信号配时方案    10
2.4 小结    12
第三章排队长度和信号配时    13
3.1建立相邻交叉口路段排队模型    13
3.1.1 信号周期的确定    13
3.1.2 路段车辆排队    14
3.1.3单车道路段排队长度计算模型    16
3.1.4多车道路段排队长度计算模型    17
3.2信号配时方案设计    18
3.2.1周期长度的确定    19
3.2.2 绿灯时长的确定    19
3.3 小结    20
第四章黄浦大街路段信号配时    21
4.1选取目标交叉口    21
4.2调查方案    21
4.2.1目标交叉口基本信息    21

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4.2.2调查计划    23
4.3 交通调查结果    24
4.3.1 现有信号配时    24
4.3.2高峰小时交通量    26
4.3.2交叉口延误    26
4.3.3 行人过街调查    27
4.3.4交叉口现状评价    27
4.4排队长度约束的信号配时    28
4.4.1渠化和相位设计    28
4.4.2交叉口渠化设计和相位方案设计    29
4.4.4排队长度约束验证    30
4.5 仿真模拟    31
4.6方案评价    32
4.6.1排队长度评价    32
4.6.2 延误评价    32
4.7小结    33
第五章总结与展望    34
参考文献    35
致谢    37