Study On The Impact Of The Built Environment Of Historical Blocks On The Residents’ Health Based On Multi-source Data

The relationship between urban built-up environment and residents’ health is one of the hot research issues in the field of urban planning.While inheriting urban culture and meeting the function of housing stock,historical blocks are also faced with the problem that the quality of built-up environment is constantly declining and the level of residents’ health is difficult to guarantee.Under the background that the current urban development in China has generally entered the era of stock,improving the health and livability of the built environment of historical blocks is one of the important work of urban planning.It is an important link for further practice of healthy urban design to clarify the impact relationship between the built environment of historical blocks and residents’ health,but the coupling relationship between them remains to be verified.At present,the lack of micro scale research has led to the problem of what kind of mechanism material space affects residents’ health.First of all,this study summarizes and establishes the meso urban scale and micro human-oriented scale of the built-up environment index system of historical blocks,and takes three historical blocks in Heping District of Tianjin as a case study and analysis.In this paper,the spatial factors of built-up environment are taken as independent variables,the socio-economic factors of residents as covariates,and the health indicators as dependent variables.The relationship between built-up environment and BMI index of residents is analyzed by geographical weighted regression,and the relationship between built-up environment and symptoms of hypertension and diabetes is analyzed by binary logistic regression.Then the model conclusions of each block and symptom are compared.Meso scale built environment elements include four dimensions: open space,land use,street form and road traffic.Micro human dimension visual elements include linear space,plane layout and three-dimensional shape of color,order and spatial combination.The results show that:(1)compared with the built-up spatial attributes,the economic and social background attributes of residents have a greater impact on whether they suffer from diabetes and hypertension;(2)the built-up environment has a more comprehensive impact on the BMI index of residents,and the impact factors on whether they suffer from diabetes and hypertension are relatively small;(3)different blocks have different combinations of built-up spatial impact factors on chronic disease symptoms.(4)The micro built-up spatial attributes of BMI index of different blocks are similar.Based on the above research conclusions,this study further puts forward the relevant historical block space optimization strategy,historical block health design guidelines and historical block planning suggestions,in order to provide reference for the future related healthy city research,the development of health-oriented urban design guidelines and the construction of information-based urban health index platform.