Research On Underground Pedestrian System In The Hub-type Station's Influential Area Of Chongqing City Based On The Compact City Theory

In the 18^th,The industrial revolution brought about great social productivity gains and a wave of population shifts to cities.With the city's uncontrolled proliferation.Compact city theory is to deal with the disorderly spread of the city to explore sustainable development,and urban integration development is based on the track site as the center of the compact city development,its essence is the integration of urban and architectural design,desalination of buildings Boundary with the city.With the rapid development of China's railways,the traditional train stations have escalated,and the gathering effect of the stations has become more pronounced.Influencing the traffic in areas such as railways,subways,public buses and automobiles,the traffic flow is huge and the flow lines are complicated.Underground space to efficiently,three-dimensional organization of flow,ease traffic pressure.Taking Tokyo,Japan as an example,some high-density cities have developed underground space for an earlier time and have formed networks that utilize the system of underground walkways.The traffic in the surrounding area was integrated and a"bridge"was set up between the hub site and the urban subway and urban complex by the pedestrian system,so as to make close contact between them.As a typical representative of mountain cities in China,Chongqing has a rich geographical structure with elevation,which provides an important congenital condition for the establishment of a three-dimensional compact walking system.As Chongqing Shapingba Station is the first comprehensive high-speed rail covered complex in China,The space,function and streamlined organization of the influence area of the hub site were explored.In this paper,we mainly study the cases at home and abroad through field research,and visit Tokyo,Osaka,Seoul,Chongqing,Chengdu and other places to collect a large amount of first-hand information to try to explore the development status of the underground space in each city hub station;analyze the organization of the underground walk system Methods;summarize the characteristics and functions of walking system,and classify the morphology under different conditions.In this paper,firstly,the relative concepts of compact and underground pedestrian system are expounded.Based on the current situation both at home and abroad,the research background and theoretical foundation of this subject are initially formed.Then,based on the composition and characteristics of the underground pedestrian system,the paper concludes that underground pedestrian system Then,according to the classification of hub in Chongqing,this paper investigates several typical cases and analyzes the key factors that affect the rationality and compactness of the pedestrian system by using professional software.The paper also focuses on spatial combination,traffic flow,Functional configuration and space environment and other aspects of the positive thinking of the corresponding design elements.