Study On Informal Space Utilization Under Overpass In Chongqing City

In the process of urbanization dominated by rationalism and rapid growth,a large number of areas under overpasses have appeared,which have become the "lost space" of the city and the key area of urban renewal and reconstruction in the urban double-repair stage.However,the increasing demand of residents’ activity space leads to the existence of "bottom-up" development power in the space under the bridge,that is,informal space utilization.Because the traditional planning system in our country by the government and the designer is "top-down" design and management mechanism,residents are using space build in the context of the long-term to be seen as a kind of marginalization,and even illegal way of space utilization,so in the process of planning and design in our country,the scope of space informal use into account.But urban development have always been accompanied by a combination of both formal and informal powers,neglect is not equal to does not exist,residents of informal their space through to the city normal space to adjust and build,through transformation to change the present situation of the normal space cannot meet the demand of its space,therefore,informal use to some extent can fill the blank of the normality urban planning system and complement the traditional planning for lack of residents participation,don’t understand space requirements lead to insufficient space to waste or even the loss of vitality.Research and reference to urban space under the bridge at the same time,use the advantages of informal,can fully understand the formal and informal relationship,both in urban development,planning,design and space management in the process of how to complement each other,mutual balance,to informal use make up for the defect of formal system,the advantages of both in planning practice and management of seamless,so as to enhance the flexibility of the urban space and self-regulation.Based on the empirical research on the informal utilization of space under flyovers in the main urban area of chongqing,this paper discusses the formation conditions,users,space utilization,development mechanism and advantages and disadvantages of bottomup spontaneous utilization and renewal in urban development.Starting from the real phenomenon of city,combining with update cases both at home and abroad,and further put forward the suitable for China’s urban design strategy based on daily life environment,and explores how informal space utilization and the existing top-down cohesion is regular urban design strategies and management measures,in order to solve the problem of empty lost space in Chinese cities to update,and attention to the space requirements of lowincome groups to ensure the city’s social justice.The paper is divided into seven chapters:Chapter one: introduction.The research background of this paper is expounded,the research status and blank of irregularity at home and abroad are briefly described,the research purpose and significance of this paper,and the basic framework of this paper.Chapter two: the basic research of informal space utilization under bridge.Taking the lost space theory as the starting point,the space under the bridge is introduced as the lost space in the city,which not only needs to be paid attention to in the transformation of physical space,but also needs to be made up in the research and practice of its social and policy aspects in China.At the same time,there is a lot of informal utilization of such lost space under overpasses.Then,the formation mechanism,main characteristics and classification methods of informal space under urban Bridges are analyzed,and the reality that informal research needs to be connected with the formal planning system is pointed out.Finally,based on lefebvre’s theory of space production and daily life,this paper points out that the nature of informal space production is informal utilization.Therefore,this study summarizes the characteristics of spontaneous utilization of residents from the perspective of daily urbanism urban design.The advantages and limitations of formal space and informal space and the strategies of daily urbanist urban design under the reality dominated by formal planning system in China.Chapter three: the general situation of chongqing bridge space.Selected 16 major overpass bridge in chongqing urban area space,from the microscopic space reconstruction and renewal of the urban cohesion,flexible use of network organization,and community and residents to participate in three aspects,such as the formation mechanism of the space under the bridge,the bridge space of the development of the informal space utilization,as well as the space under the bridge location,traffic,the surrounding land use,spatial form and group activities on its influence on the development of the informal space;The classification of irregular space lays a foundation for the discussion of classification in the following paper.Chapter four: the empirical study of the commercial-dominated space under the bridge.Select Yang Gong space under the overpass bridge,from the micro space flexible utilization of spontaneous use period of time,space and community network organizations and residents to participate in three aspects,such as the location,transportation,use,and the analysis space of informal use,discusses bridge space as a community public resources under the normal strength weak intervention,advantages and limitations of community autonomy.Chapter five: an empirical study on the space under the bridge dominated by recreation.To Huang Huayuan intersection space as the research object,from the aspect of space,space,flexible use of micro and reconstruction and the community residents and swam out to participate in social network to construct three aspects,such as specific analysis of activists,swim booth,managers,and through the use of space,and four constrained in how to balance the relationship between each other,in order to explore dominant informal recreation space in normal strength under strong interference,how to make up for the inadequacy of irregular space.Chapter six: an empirical study of the residential space under the bridge.Taking the space under the wulidian overpass as an example,this paper analyzes the influence of location,traffic and surrounding land use on space,as well as the use of space by tenants,landlords,managers and pedestrians from the two aspects of space transformation and social network,so as to discuss the limitations of informal space.Chapter seven: Revelations and Suggestions.On the basis of the previous chapters,from the informal space under the bridge business,recreation,living sanger type,put forward the formal urban design strategy to optimize the environment;Again from the whole,in view of the current top-down system of urban planning,from the macro micro transformation of urban renewal system,flexible utilization of "advancing with The Times" and weave a social network to carry on the three aspects of space management autonomy,suggest cohesion informal urban space,to informal space utilization and normal urban planning and design of complementary with each other.