Study on the Quality Evaluation of Old Block Renewal from the Perspective of Healthy City

Under the background of China's new urbanization, urban construction has entered the stock renewal stage, and the research on the renewal of old blocks is urgent. Taking the block material environment and residents' living needs as the research object, this paper puts forward a set of evaluation system and design method for block renewal at macro and meso levels. By analyzing the connotation of the concept of healthy city and the governance characteristics of old blocks, and based on the theory of healthy social determinants, health promotion theory and meta theory of healthy city, a six-dimensional evaluation index system of "healthy blocks" based on "healthy built environment healthy people's body and mind" is established. Taking Xichang street block in Changsha as an example, the renewal quality of old blocks is evaluated, Adjust and optimize the update strategy. The research results have certain reference significance in evaluating urban public health problems, evaluating the built environment of current blocks, investigating residents' health psychological needs, and optimizing the renewal methods of urban old blocks, which provides a new exploration path and technical support for the quality improvement construction of old blocks in healthy cities in China.