Research On Space Optimum Design Of Urban Slow-moving Network Under The Overpass

With the continuous improvement of urbanization in contemporary cities,urban traffic congestion is becoming more and more serious.Overpasses by virtue of the separation of urban motor vehicle traffic,reduce the motor vehicle conflict point has become an effective way to alleviate the traffic pressure of motor vehicles,this advantage attract the various countries of the city builders of all ages.As the urban construction and development intensified "car" tendencies,the city's original slow-moving network and spatial basis is declining.In the background of China's current situation in city plan from incremental to stock,the city's slow-moving network and refinement has become an inevitable trend.Overpass as a product of the development of carism the huge impact to the urban function and urban slow-way is also gradually exposed: large area,the lower space utilization under the bridge,Breaking the city's original slow-moving network pattern.It can be said that one of the reason to break the urban slow-moving network is overpass,and the integrity and convenience of the urban slow-moving network directly affects the slow travel rate of the urban residents.Therefore,this paper hopes that through the research of urban slow-moving network under the overpass in the space optimization design to make up the city slow-moving network,and promote urban residents slow travel.Chongqing's unique mountain city characteristics determine that Chongqing's overpasses are characterized by densely distributed,large-scale and high-altitude differences.In this paper,through the study of the slow-line network under the typical overpass of Chongqing,this paper analyzes the four elements of demand from the slow-moving network of the slow road,security,convenient and happy slow four elements of the need for analysis,through the design of specific design strategies,the conceptual optimization design to solve the current situation in the underpass bridge in the slow network of existing problems.This article has six chapters,divided into three parts:The first part(Chapter 1): The research framework of the paper and the related theories at home and abroad.Firstly,the background of this paper is introduced,and the research object is defined as the slow network in the space under the overpass,and the related concepts are defined.And then to raise the problem-analyze the problem-to solve the problem for the research ideas to build the framework of the study.Finally,bysummarizing the theoretical basis of the slow network and the space utilization under the overpass,this paper combs the current situation of the research on the space utilization of the slow network and the overpass at home and abroad,and makes clear the purpose and significance of the study.the problem for the research ideas to build the framework of the study.Finally,by summarizing the theory of slow network,the space utilization of overpass and other theoretical basis,combing the domestic and international slow network and overpass under the space utilization of the status quo,clear the purpose and significance of the study.The second part(second and third chapters):The basic research on the space and slow network characteristics of overpass and the investigation of the status quo of selected samples.Firstly,the general characteristics of the space under the overpass are analyzed from the two types of space characteristics and the characteristics of the space under the overpass and the characteristics of the space under the overpass are analyzed.The author puts forward the core elements of the construction of the slow-line network under the overpass: it is necessary to ensure the slow-moving,slow-moving and convenient slow-moving and pleasant slow-moving of the slow-moving network under the overpass.Then,through the analysis and summarization of the functions of the surrounding land,the overpass is divided into four functional types: residential commercial,traffic,commercial,residential,commercial and residential traffic.Finally,based on field research and questionnaire,Safety,convenience and pleasure of the four underpass network in Chongqing under the current situation of the research and analysis of the overpass network under the current situation of the existing problems and the use of pedestrian overpass users demand.The third part(fourth,fifth and sixth chapters): the formulation of the planning strategy and the conceptual design.On the basis of optimizing the design goals and principles of the urban slow-moving network under the overpass,the paper analyzes the existing problems of the slowFrom the four aspects of the road,safe,convenient,pleasant four aspects of the proposed overpass under the slow network optimization strategy.Then,according to the characteristics of different overpasses,the design strategy of slow network under the overpass is proposed,and then Yang Gongqiao Interchange is selected as the main sample for conceptual optimization design.Finally,the author summarizes the research results and innovations of this paper,and looks forward to the future research direction.