Study On Layout Optimization Of Urban Expressway Network In Central District Of Jinan

With the rapid development of urbanization in modern China,the gradual improvement of social economy and people's living standards,the sustained and rapid growth of urban motorized traffic in our country,coupled with urban public transport,the lagging of road infrastructure construction and so on,a series of urban traffic problems have emerged,the most serious of which is traffic congestion.Therefore,perfecting the urban road traffic system and constructing the urban expressway network structure are the important measures to improve the urban road traffic service level and the traffic travel efficiency,and to solve the urban motorized traffic congestion.Improving the efficiency of urban operation is an important guarantee.This thesis aims at optimizing the layout of expressway network in Jinan,combining with relevant theories and case studies,analyzes the essential characteristics of urban expressway,and summarizes the general rules and successful experiences of expressway planning and construction in mega-cities.This thesis probes into the optimization method and layout mode of urban expressway network,and from the analysis of the present situation of Jinan expressway and the existing planning of the expressway network,expounds and analyzes the relevant factors that affect the development of Jinan expressway.Finally,the layout optimization of Jinan urban expressway network is made,and the overall evaluation of the optimized network is carried out.The thesis is divided into six chapters,the first and second chapters are the basic research,the fourth chapter is the emphasis analysis,the core research part is the third chapter and the fifth chapter,the research content is summarized as follows.The first and second chapters related to the background and related concepts of expressway development,through the review of domestic and foreign research on expressway planning methods,for the later construction of Jinan City Expressway in the experience,methods and development path provide the theoretical basis,and the development of urban expressway construction theory and related cases are analyzed and studied.In the third chapter,the author interprets the functional characteristics of urban expressway,studies and summarizes the scale and density of urban expressway online network,the distribution of interchange and so on,analyzes and expounds the form of urban expressway road.This probes into studies and summarizes the layout optimization method and layout mode of urban expressway,and defines the main control indexes,such as the scale and density of urban expressway network,and forms a quantitative index system to guide the layout optimization of urban expressway network.In the fourth chapter,the author analyzes the current situation of Jinan expressway development,analyzes the layout structure,the size and density of the network,and analyzes the relevant factors that affect the layout of Jinan urban expressway network.Make the concrete analysis summary,to give the necessary analysis support to the network optimization.The fifth chapter,according to the previous analysis and research,combined with the actual conditions of Jinan city development,forecast the scale of Jinan urban expressway,and plan the optimization of the overall urban expressway network,at the same time,the road form of the line network.The distribution of interchanges and important hub nodes,the optimization of key lines also makes the planning concept of support system.Finally,the overall evaluation of the optimization scheme is carried out.