Research on Identification and Type Analysis of "Double Aging" Neighborhoods in the Central Zone of Beijing

In the current period of urban development and transformation in China,implementing urban regeneration,promoting the transformation of older neighborhoods,and realizing the improvement of environmental quality and social life have become urgent and important tasks. The aging of the physical environment and the aging of residents are the dual challenges faced by older neighborhoods regeneration in China. Therefore,this article focuses on the older neighborhoods in the city where the social demographic structure also shows an elderly state as the physical space ages,that is," double aging" neighborhoods regeneration. In view of the fact that there is a base for the total amount and distribution of residential areas with the characteristics of " double aging" is the basis for the design of policies and mechanisms for the adaptation of residential areas to adapt to aging. The study firstly analyzed the formation and evolution of older neighborhoods in Beijing,and used multi-source data to complete the analysis of the total scale of older neighborhoods and the development of double aging. Then it build a physical environment quality measurement system to further identify the older neighborhoods with " double aging" characteristics,and summarize their types and distribution characteristics. The urban " double aging" neighborhoods identification and classification method proposed in this study can provide a basis for the research and implementation management of the regeneration and transformation of older neighborhoods by type and division.