The Connectivity Study Of Faractal Networks Of The Urban Areas Around Rail Transit Hubs

In recent years, with the rapid development of our cities and increasing population density of urban centers, urban traffic congestion can be seen everywhere, therefore, the priority development of public transport has become an inevitable choice in big cities, many cities have started the plan of rail transit construction. At the same time, there is some unsatisfactory practice about the construction of rail transportation in China. For example, various transport modes are independent of each other and lack of organic connectivity, so the transfer is not convenient; Vehicle and pedestrian are mixed, while pedestrian flow and urban roads are crossed, so the pedestrian shopping environment is poor; The urban rail transit hubs are lack of urban green landscape and pleasant scale space, so the layout is of confusion; The underground space are the units of private space, there is little contact and communication with each other, so that it can't play its role completely, etc. All above is precisely performance of being lack of the fractal networks connectivity.This article attempts to research about the "connectivity" of the "Site function fractal networks", "Road and Traffic fractal networks ", "Landscape Green fractal networks" in the rail transportation hubs by a new perspective. It is based on the core concept about the fractal networks, continuous-scale hierarchy, and the invisible organic connectivities, while studying the theory and the practical experience about the foreign mature areas of rail transit hubs, with compared to the lack of the construction of the rail transit hub in China. Such humanity, convenient and diversity as the goal, the author analysis functional connectivity and the connectivity on the scale hierarchy about the three fractal networks, in order to explore the ideal way of the connectivity in the urban rail transit hubs. Finally, it provides practical, reasonable, long-term planning and design strategies and guidelines of regional development and construction in the urban rail transit hubs.This article consists of three parts. The first part is an introduction, to specific research projects and research significance of the object, and to define the key concepts of this article. The second part is the main part of this paper, and it is mainly divided into three chapters, in-depth discussion on the function connectivity and the connectivity on the scale hierarchy of "Site function networks", " Road and Traffic networks" and " Landscape Green networks". The last part is conclusion and outlook, and it is mainly a summary of research results, and inadequate research and prospects.