發(fā)布時間：2018-03-08 17:24

  本文選題：城市道路網(wǎng)絡　切入點：脆弱性研究　出處：《哈爾濱工業(yè)大學》2014年碩士論文　論文類型：學位論文

【摘要】：城市道路網(wǎng)絡作為城市的骨架，對城市的正常運轉起著至關重要的作用，但伴隨著城市道路網(wǎng)絡的不斷發(fā)展，其承擔災害的風險也隨之加大，抵御災害能力的脆弱性也在不斷的暴露出來。當城市道路網(wǎng)絡受到破壞時，交通運行將受到嚴重影響，社會經(jīng)濟將遭受重大損失，人們正常的生活活動也將受到影響。因此，有必要深入研究道路網(wǎng)絡暴露出來的問題性質和規(guī)律，通過分析道路網(wǎng)絡脆弱性的影響因素和影響程度，，找出關鍵路段、關鍵節(jié)點和關鍵區(qū)域，并以此來指導交通規(guī)劃和管理。 本文首先從城市道路網(wǎng)絡拓撲結構復雜性、交通流時空分布復雜性以及流量演化機制復雜性三方面說明了復雜網(wǎng)絡理論用于城市道路網(wǎng)絡的可行性，對脆弱性與魯棒性及可靠性的概念進行了辨析，給出了城市道路網(wǎng)絡脆弱性的定義，從道路網(wǎng)絡物理結構、道路網(wǎng)絡交通流以及自然與人為災害等方面系統(tǒng)分析了城市道路網(wǎng)絡脆弱性的主要影響因素，對突發(fā)事件情況下出行者的交通反應行為與路網(wǎng)絡脆弱性的反饋關系進行分析。 將城市道路網(wǎng)絡抽象為一個復雜加權網(wǎng)絡，結合網(wǎng)絡的物理屬性和流量屬性得到了網(wǎng)絡中邊與節(jié)點的權重計算公式，在充分考慮脆弱性影響因素的情況下，從動態(tài)、靜態(tài)、動態(tài)加靜態(tài)三個角度給出了三個聯(lián)系密切且側重不同的評價指標，用層次分析法得到了三個指標的權重，構建了綜合脆弱度評價模型。 以經(jīng)典的Sioux falls網(wǎng)絡和深圳市某區(qū)域實際道路網(wǎng)絡為案例，運用評價指標體系及評價模型得到了網(wǎng)絡中各路段、交叉口及區(qū)域脆弱度，對單一指標的評價結果與綜合評價指標的評價結果之間的差異，以及案例網(wǎng)絡綜合脆弱度評價結果之間的差異進行了比較分析，指出了城市道路網(wǎng)絡脆弱性綜合評價指標的優(yōu)越性。
[Abstract]:As the skeleton of the city, urban road network plays a vital role in the normal operation of the city, but with the continuous development of the urban road network, the risk of disaster is also increased. Vulnerability to disasters is also constantly exposed. When urban road networks are damaged, traffic will be severely affected, social and economic losses will be significant, and people's normal life activities will be affected. It is necessary to deeply study the nature and law of the problems exposed by road network, and find out the key road sections, key nodes and key areas by analyzing the influencing factors and degree of the vulnerability of road networks, and guide traffic planning and management. In this paper, the feasibility of applying complex network theory to urban road network is illustrated from three aspects: the complexity of urban road network topology, the complexity of space-time distribution of traffic flow and the complexity of flow evolution mechanism. In this paper, the concepts of vulnerability, robustness and reliability are analyzed, and the definition of vulnerability of urban road network is given, and the physical structure of road network is given. The main influencing factors of urban road network vulnerability are systematically analyzed in terms of road network traffic flow and natural and man-made disasters. The feedback relationship between travelers' traffic response behavior and road network vulnerability is analyzed in the case of unexpected events. Abstract the urban road network into a complex weighted network, combining the physical attribute and the flow attribute of the network, the weight calculation formula of the edge and node in the network is obtained. Three closely related and different evaluation indexes are given from dynamic plus static three angles. The weights of the three indexes are obtained by AHP and the comprehensive vulnerability evaluation model is constructed. Taking the classical Sioux falls network and the actual road network of a certain area in Shenzhen as an example, using the evaluation index system and the evaluation model, we get the degree of vulnerability of each section, intersection and region in the network. The differences between the evaluation results of single index and comprehensive evaluation index, as well as the evaluation results of comprehensive vulnerability of case networks are compared and analyzed. The superiority of the comprehensive evaluation index of urban road network vulnerability is pointed out.
【學位授予單位】：哈爾濱工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U412.1

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