小城镇桥梁交通管理与控制策略研究

发布时间：2018-03-08 18:41

本文选题：小城镇　切入点：桥梁交通　出处：《华南理工大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着经济的发展,城镇规模逐渐扩大,很多沿河而居的城镇仍保留沿河两岸发展起来的城市格局。生活在江河两岸的城镇居民的频繁来往于分布在桥梁两端的居住区、商业区、办公区,从而使得桥梁成为跨江河出行的重要通道,跨河交通出行量不断增加。桥梁两端多于交叉口衔接,大量不同流向的车流在交叉口产生交织,易于产生交通拥堵。拥堵情况下,受桥梁本身结构的限制,车辆排队等待的怠速工况产生的振动,易对桥梁结构的稳定性产生冲击性破坏,甚至与桥梁产生共振现象而造成桥梁断裂。因而做好对桥梁及两侧关联区域的交通管理与控制,对保证桥梁安全,保证居民工作和生活的通道高效的运行有着重要的意义。本文通过分析小城镇出行目的、出行时间和出行方式等出行特征,分析桥梁的交通构成及运行特性,结合实际调查情况,分析了城镇桥梁交通产生交通拥堵的主要因素。从拥堵的源头出发,提出了针对桥梁运行的车种禁限、单向交通等区域交通组织管理手段和交叉口车辆方法、交叉口渠化、路口信号控制等交叉口交通组织管理手段。在交通组织优化的基础上,采用信号联动控制,以达到最佳控制效果。依据桥梁交通特性,提出总量控制思想。并基于该思想提出了能够依据动态交通流实现动态信号控制的双层信号协调模糊控制系统,即系统层和控制层。系统层模糊控制主要是协调各交叉口的公共周期与相位差;而控制层的独立交叉口模糊控制,基于桥梁总量控制思想,采用了三级模糊控制,并分别针对总量控制路段相邻和关联而不相邻的交叉口提出了不同的模糊控制方案来调节各交叉口各相位的绿灯时间。并对该系统进行了仿真验证,仿真结果表明,该系统明显优胜于传统的信号联动控制方法。最后,结合广州某城镇桥梁要道,对桥梁及周边交叉口进行交叉口渠化,并在交叉口渠化的基础上提出了无信号控制方案以及不同的交叉口组合的信号协调模糊控制方案,并利用MATLAB和VISSIM仿真软件对方案进行对比,分析各方案的在不同时段的适用性以及优劣性。
[Abstract]:With the development of economy, the urban scale expands gradually, many towns still live along the river along the river developed city life pattern. In the frequent River on both sides of the urban residents from the distribution in the bridge at both ends of the residential area, commercial area, office area, so that the bridge has become an important channel of travel across the river, across the river the traffic volume is increasing. More than the intersection of both ends of bridge connection, a large number of different traffic flows have interwoven in the intersection, prone to traffic congestion. Congestion, by the bridge structure, vibration of vehicle queue waiting for idle speed, easy on the stability of bridge structure impact damage, and even the bridge resonance phenomenon caused by the broken bridge. So do the traffic management and control of the bridge on both sides and the associated region, to ensure the safety of bridges, ensure that residents work and life There is an important significance to perform live channels efficiently. Through the analysis of small town travel purpose, travel time and travel mode travel characteristics and operating characteristics analysis of bridge traffic, combined with the actual investigation, analyzed the main factors of urban traffic bridge traffic congestion. Starting from the congestion source, put forward the operation of the Bridge car restriction, one-way traffic and other regional traffic management means and method of vehicle intersection, intersection, traffic signal control intersection traffic management means. Based on traffic organization optimization, using signal linkage control, to achieve the best control effect. According to the traffic characteristics of the bridge, the total control thought. And based on the proposed fuzzy control system of double signal coordination according to the dynamic traffic flow dynamic control signal, the system layer and control layer The fuzzy control system. Layer is to coordinate the public cycle and phase of each intersection difference; and control layer independent intersection fuzzy control idea, total control of bridge based on the three level fuzzy control, according to the total control section adjacent and associated without adjacent intersection fuzzy control is presented in different ways to adjust the intersection of each phase time. And the system is verified by simulation, the simulation results show that the system is clearly superior to the traditional signal linkage control method. Finally, combined with a Guangzhou Town Bridge Road, intersection channelization of the bridge and surrounding the intersection, and presents no signal control scheme the signal and coordinate different intersection combination fuzzy control scheme based on intersection channelization, and compared the scheme using MATLAB and VISSIM simulation software, analysis of each scheme in different The applicability and pros and cons of the time period.

【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U491

【相似文献】