Study on the quality evaluation of old block renewal from the perspective of healthy city

Under the background of new urbanization, urban construction has entered the stage of stock renewal, and the research on the renewal of old blocks is urgent. Taking the material environment and the use behavior of residents as the research object, this paper puts forward a set of evaluation and design methods for block renewal from macro and meso levels. By analyzing the connotation of the concept of healthy city and the governance characteristics of old blocks, based on the theory of healthy social determinants, health promotion theory and meta theory of healthy city, the objective requirements of healthy China 2030 and the actual development of healthy cities in China, A five dimensional evaluation index system of "healthy block" based on "healthy built environment healthy people's psychology" is established. Taking Xichang street block in Changsha as an example, the quality of old block renewal is evaluated and renewal strategies are put forward. This study has certain reference significance in examining the urban public health problems, carrying out the environmental assessment of the existing blocks, investigating the psychological needs of residents' health, and optimizing the renewal methods of old blocks in the city. It provides support and exploration for the optimization methods of block level in the construction of healthy cities in China.