城市隧道交通疏解与可靠性协同研究

发布时间：2018-06-16 00:29

本文选题：城市隧道 + 交通疏解　；参考：《华中科技大学》2015年硕士论文

【摘要】：城市发展过程中,为适应经济的快速发展和城市扩张,加强区域之间的交通联系,跨江河、跨山岭的城市隧道建设越来越受到重视。城市隧道作为城市道路网络中的一个重要环节,由于其受区域路网限制、交通组织难度大等特性影响,在城市路网中往往容易成为交通瓶颈,导致隧道交通拥堵甚至区域交通瘫痪。本文通过研究隧道交通疏解方法与路网可靠性优化之间的协同机制,共同服务于城市隧道交通管理,为隧道交通疏解提供系统解决方法,具体工作为:(1)提出了城市隧道日常状况下的交通疏解方法及突发情况下的应急预案。在充分分析城市隧道基本特性、交通特性以及事故特征的基础上,从隧道功能定位、需求预测、区域路网配套以及交通需求管理等方面阐释了隧道宏观层面上的交通疏解策略;通过交通组织、出入口设计以及合理设置监控与诱导设施等方法,从微观层面研究城市隧道交通管理措施;根据隧道突发事件下的单车道受阻、全车道受阻及全隧受阻三种情况,科学制定交通疏解预案,并根据突发事件区域影响范围,通过三级区域交通疏解措施合理组织交通流。(2)实现了城市隧道交通疏解与路网可靠性协同分析,制定出二者“分析、反馈、优化”的协同机制。为了更好评价隧道及区域路网性能,确定连通可靠度、畅通可靠度和行程时间可靠度三种评价指标,通过城市道路单元可靠度、节点可靠度以及区域路网可靠度计算,找出隧道及区域路网的薄弱环节,并研究区域路网拓扑结构及节点可靠性优化方法,通过交通疏解措施予以改善,完成二者之间协同分析。(3)以武汉东湖通道为例,完成隧道区域路网优化。通过交通疏解措施与区域路网可靠性优化的协同作用,实现隧道区域路网畅通可靠度从34.72%提高到57.29%,区域交通状态从不畅通变为基本通畅,取得了较好的应用效果。
[Abstract]:In the process of urban development, more and more attention has been paid to the construction of urban tunnels across rivers and mountains in order to adapt to the rapid development of economy and urban expansion, strengthen the traffic links between regions. As an important link in urban road network, urban tunnel is easily become a traffic bottleneck in urban road network because of its characteristics such as limited by regional road network and difficult traffic organization. Lead to tunnel traffic congestion and even regional traffic paralysis. In this paper, the cooperative mechanism between tunnel traffic relaxation method and reliability optimization of road network is studied to serve the urban tunnel traffic management together, and to provide a systematic solution for tunnel traffic relaxation. The concrete work is: (1) put forward the method of traffic dredging under the daily condition of the city tunnel and the emergency plan in the case of emergency. Based on the analysis of the basic characteristics, traffic characteristics and accident characteristics of urban tunnels, this paper explains the traffic relaxation strategies on the macroscopic level from the aspects of tunnel function orientation, demand prediction, regional road network matching and traffic demand management. Through the methods of traffic organization, entrance and exit design and reasonable setting of monitoring and guidance facilities, the traffic management measures of urban tunnel are studied from the microscopic level. In the three cases of full lane obstruction and full tunnel obstruction, the traffic evacuation plan is scientifically formulated, and according to the impact area of the emergency area, The coordinated analysis of urban tunnel traffic relaxation and road network reliability is realized by rational organization of traffic flow through three-level regional traffic dredging measures, and a cooperative mechanism of "analysis, feedback and optimization" between them is worked out. In order to better evaluate the performance of tunnel and regional network and determine three evaluation indexes, connectivity reliability, smooth flow reliability and travel time reliability, the reliability of urban road unit, node and regional road network is calculated through the calculation of the reliability of urban road unit, node and regional road network. Find out the weak links of the tunnel and the regional network, and study the topological structure of the regional road network and the reliability optimization method of the nodes, improve it through the traffic dredging measures, complete the collaborative analysis between the two, take Wuhan East Lake Passage as an example, take the East Lake Passage of Wuhan as an example. The optimization of tunnel area network is completed. Through the synergetic effect of traffic dredging measures and reliability optimization of regional road network, the unblocked reliability degree of tunnel regional road network is improved from 34.72% to 57.29, and the traffic state of the region is changed from not smooth to basic smooth, and good application effect is obtained.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491

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