【摘要】：對(duì)于城市地面綜合交通系統(tǒng)而言,道路網(wǎng)是其最為重要和基礎(chǔ)的骨架和依托,城市交通可持續(xù)發(fā)展的重要基礎(chǔ)條件就是有一個(gè)結(jié)構(gòu)合理、功能完善、容量充足且與城市主導(dǎo)交通模式相協(xié)調(diào)的道路網(wǎng)系統(tǒng)。然而,現(xiàn)代社會(huì)城市交通問(wèn)題日益嚴(yán)重,這不僅影響了城市的經(jīng)濟(jì)建設(shè)和社會(huì)發(fā)展,也給人們的生活和工作帶來(lái)了諸多不便。而道路網(wǎng)布局規(guī)劃不合理、道路等級(jí)劃分不明、對(duì)道路網(wǎng)交通規(guī)律認(rèn)識(shí)不足等都是造成交通問(wèn)題的一部分原因,要解決交通問(wèn)題首先必須對(duì)道路網(wǎng)進(jìn)行全面深入的研究。針對(duì)道路網(wǎng)的銜接結(jié)構(gòu),有必要確定描述路網(wǎng)結(jié)構(gòu)的方法和指標(biāo),并分析路網(wǎng)的結(jié)構(gòu)特性對(duì)機(jī)動(dòng)車(chē)流量分布的影響,為未來(lái)的城市路網(wǎng)規(guī)劃、緩解城市交通擁堵提供理論依據(jù)和技術(shù)支持。本文首先采用對(duì)偶法將道路網(wǎng)抽象成為拓?fù)浣Y(jié)構(gòu),確定評(píng)價(jià)道路網(wǎng)銜接結(jié)構(gòu)的三個(gè)重要指標(biāo)：點(diǎn)度中心度、鄰近中心度、介數(shù)中心度。其次從空間認(rèn)知的角度分析路網(wǎng)結(jié)構(gòu)特性對(duì)路徑選擇的影響,從而影響機(jī)動(dòng)車(chē)交通流量的分布。然后通過(guò)五個(gè)城市的實(shí)例數(shù)據(jù)統(tǒng)計(jì)分析道路網(wǎng)銜接結(jié)構(gòu)的三個(gè)指標(biāo)與交通流量指標(biāo)總車(chē)公里的一元線性回歸,得到介數(shù)中心度與總車(chē)公里的相關(guān)性最大。同時(shí)通過(guò)分析不同路網(wǎng)的研究范圍得到路線介數(shù)中心度的變化情況,進(jìn)而分析不同研究范圍對(duì)路網(wǎng)結(jié)構(gòu)預(yù)測(cè)機(jī)動(dòng)車(chē)流量的影響,建議研究路網(wǎng)結(jié)構(gòu)對(duì)交通流量分布的影響應(yīng)盡量采用較大路網(wǎng)研究范圍。
[Abstract]:For urban ground integrated transportation system, road network is its most important and basic skeleton and support. The important basic condition of sustainable development of urban traffic is to have a reasonable structure and perfect function. A road network system with sufficient capacity and coordination with urban dominant traffic patterns. However, the urban traffic problem is becoming more and more serious in modern society, which not only affects the economic construction and social development of the city, but also brings many inconvenience to people's life and work. However, unreasonable layout planning of road network, unclear classification of road grade and insufficient understanding of the traffic law of road network are a part of the causes of traffic problems. In order to solve the traffic problems, a comprehensive and in-depth study of the road network must be carried out first. In view of the connecting structure of road network, it is necessary to determine the method and index to describe the structure of road network, and to analyze the influence of the structural characteristics of road network on the distribution of vehicle flow, so as to plan the urban road network in the future. Alleviate urban traffic congestion to provide theoretical basis and technical support. In this paper, the dual method is used to abstract the road network into a topological structure, and three important indexes for evaluating the link structure of the road network are determined: the centrality of points, the centrality of proximity, and the centrality of meso-numbers. Secondly, from the perspective of spatial cognition, this paper analyzes the influence of road network structure characteristics on path selection, thus affecting the distribution of vehicle traffic flow. Then the univariate linear regression between the three indexes of the road network connection structure and the traffic flow index is analyzed by the example data of five cities, and the maximum correlation between the meso-centrality and the total vehicle-km is obtained. At the same time, by analyzing the research scope of different road networks, the change of the median centrality of the route is obtained, and then the influence of different research ranges on the prediction of vehicle flow in the road network structure is analyzed. It is suggested that the study of the influence of road network structure on traffic flow distribution should be carried out within a larger road network as far as possible.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：U491

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