基于雙層網(wǎng)絡(luò)模型的公交網(wǎng)絡(luò)通行能力和級(jí)聯(lián)故障研究
發(fā)布時(shí)間:2018-03-15 05:23
本文選題:復(fù)雜網(wǎng)絡(luò) 切入點(diǎn):雙層網(wǎng)絡(luò)模型 出處:《浙江工業(yè)大學(xué)》2014年碩士論文 論文類型:學(xué)位論文
【摘要】:城市公共交通是城市交通運(yùn)輸系統(tǒng)的重要組成部分,隨著城市化進(jìn)程的不斷推進(jìn)以及人口的不斷增加,城市公共交通的發(fā)展與城市居民日益增加的交通需求之間的矛盾日益突出,這些交通問題也嚴(yán)重影響了城市的經(jīng)濟(jì)建設(shè)和城市的運(yùn)行效率。 本文基于復(fù)雜網(wǎng)絡(luò)理論,對城市公交網(wǎng)絡(luò)進(jìn)行了深入地研究。通過構(gòu)建城市公交網(wǎng)絡(luò)的雙層網(wǎng)絡(luò)模型,進(jìn)一步研究了發(fā)生在城市公交網(wǎng)絡(luò)上的級(jí)聯(lián)故障和通行能力的提高策略,其目的是在雙層公交網(wǎng)路模型的基礎(chǔ)上研究城市公交網(wǎng)絡(luò)上的動(dòng)力學(xué)行為,以提高城市公交網(wǎng)絡(luò)的網(wǎng)絡(luò)效率和運(yùn)行能力。本文的主要工作和成果如下: 1.本文提出了城市公交網(wǎng)絡(luò)的雙層網(wǎng)絡(luò)模型的構(gòu)建方法,城市公交網(wǎng)絡(luò)可以投射到Space P和Space L空間上。把Space P網(wǎng)絡(luò)作為上層邏輯層網(wǎng)絡(luò),Space L網(wǎng)絡(luò)作為下層物理層網(wǎng)絡(luò),這樣我們就得到了由Space P和Space L網(wǎng)絡(luò)組成的城市公交網(wǎng)絡(luò)的雙層網(wǎng)絡(luò)模型。城市公交網(wǎng)絡(luò)的雙層網(wǎng)絡(luò)模型是研究城市公交網(wǎng)絡(luò)的級(jí)聯(lián)故障和提高整個(gè)城市公交網(wǎng)絡(luò)的通行能力的重要前提,是進(jìn)行下一步深層次研究的基礎(chǔ)。 2.本文研究了雙層網(wǎng)絡(luò)模型中城市公交網(wǎng)絡(luò)中的網(wǎng)絡(luò)通行能力提高的策略,在這一模型中,通過移除邏輯層網(wǎng)絡(luò)中的部分連邊可以有效地提高網(wǎng)絡(luò)的通行能力。通過對北京、上海和杭州的城市公交網(wǎng)絡(luò)仿真發(fā)現(xiàn),通過連邊移除策略可以改變邏輯層網(wǎng)絡(luò)的網(wǎng)絡(luò)結(jié)構(gòu),從而有效提高網(wǎng)絡(luò)的通行能力,這對我們未來改善網(wǎng)絡(luò)的運(yùn)行能力有很大的幫助。 3.為了研究雙層城市公交網(wǎng)絡(luò)模型上的級(jí)聯(lián)故障過程,本文對雙層模型分別采取了節(jié)點(diǎn)移除策略和連邊移除策略。通過對中國三大城市北京、上海和杭州的城市公交網(wǎng)絡(luò)的仿真發(fā)現(xiàn),適當(dāng)?shù)脑龃缶W(wǎng)絡(luò)的容量系數(shù)可以降低網(wǎng)絡(luò)的級(jí)聯(lián)故障規(guī)模。同時(shí)本文提出了城市公交網(wǎng)絡(luò)防御級(jí)聯(lián)故障的策略,有助于增強(qiáng)網(wǎng)絡(luò)魯棒性保證城市公交網(wǎng)絡(luò)的正常運(yùn)行。
[Abstract]:Urban public transportation is an important part of urban transportation system. With the development of urbanization and the increasing of population, The contradiction between the development of urban public transport and the increasing traffic demand of urban residents is increasingly prominent. These traffic problems have also seriously affected the economic construction of the city and the efficiency of urban operation. Based on the complex network theory, this paper makes a deep research on the urban public transport network. In this paper, the cascading faults and the strategies of improving traffic capacity in urban public transport network are further studied. The purpose of this paper is to study the dynamic behavior of urban public transport network based on the two-layer bus network model. In order to improve the network efficiency and operational capability of urban public transport network. The main work and results of this paper are as follows:. 1. In this paper, a two-layer network model of urban public transport network is proposed, which can be projected to Space P and Space L spaces. The Space P network is regarded as the upper logical layer network and Space L network is regarded as the lower layer physical layer network. In this way, we get the double-layer network model of urban public transport network, which is composed of Space P and Space L network. The double-layer network model of urban public transport network is to study the cascade failure of urban public transit network and to improve the whole city public transit network. The important premise of the capacity of the network, It is the foundation of further research. 2. In this paper, we study the strategy of improving the network capacity in the double-layer network model. In this model, we can effectively improve the network capacity by removing some connected edges from the logical layer network. The simulation of urban public transport network in Shanghai and Hangzhou shows that the network structure of logic layer network can be changed by the strategy of continuous edge removal, and the network capacity can be improved effectively, which is of great help to us to improve the running capacity of the network in the future. 3. In order to study the cascade fault process on the double-layer urban public transport network model, this paper adopts node removal strategy and continuous edge removal strategy for the double-layer model. The simulation of urban public transport network in Shanghai and Hangzhou shows that properly increasing the capacity coefficient of the network can reduce the scale of the cascade fault of the network. At the same time, this paper puts forward the strategy of preventing the cascade fault of the urban public transport network. It helps to enhance the robustness of the network to ensure the normal operation of the urban public transport network.
【學(xué)位授予單位】:浙江工業(yè)大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:U491.17;O157.5
【參考文獻(xiàn)】
相關(guān)期刊論文 前1條
1 李英;周偉;郭世進(jìn);;上海公共交通網(wǎng)絡(luò)復(fù)雜性分析[J];系統(tǒng)工程;2007年01期
,本文編號(hào):1614620
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