Application of health impact assessment system in green renewal design of community courtyard

With the acceleration of urbanization and the frequent occurrence of residents' physical and mental health problems, public health has become one of the important factors of urban development. As one of the areas closely related to people in urban life, community is the most frequently contacted public space and the platform for people's daily sports, entertainment and communication. Building healthy community is an effective measure to improve public health. In the context of smart growth planning, community renewal is an important part of building a healthy community. Health Impact Assessment (HIA) has been applied in Europe, the United States, Africa and the Asia Pacific region since its origin in the 1980s. It enables decision makers, citizens and designers to participate in the planning and design process from a healthy perspective. Make suggestions on potential health impacts and promote public participation. Applying the HIA to the green renewal of community courtyard can promote the residents' physical and mental health and social equity to a certain extent. The HIA in the green renewal of community courtyards is divided into three stages: assessment preparation, assessment analysis and project implementation to determine the health impact factors, health improvement measures and health outcome assessment, so as to maximize the benefit of planning and design projects to residents' health. The assessment implementation process mobilizes public participation, enhances cooperation among all parties and makes residents pay attention to health issues. Taking the public space renewal of Beijing Dashilan community yard as an example, this paper explores the application of HIA in the actual project and summarizes the deficiencies in the practice process. Using the Department of HIA in the green renewal of community courtyard is a new exploration of building a healthy community, which provides new ideas for building a healthy city and improving public health. The population structure of Dashilan District in Beijing shows the characteristics of the people with social difficulties. Taking the public space renewal of Beijing Dashilan community yard as an example, this paper makes a survey on the green space of community residential yard with the cooperation of university teachers and students research team, community neighborhood committee and social non-profit organizations. This paper analyzes the potential influence of green space in Dashilan community on physical activity, social cohesion and landscape greening. Explore the application of HIA in practical projects and summarize the shortcomings in the process of practice. Using the Department of health impact assessment in the green renewal of community courtyards is a new exploration of building a healthy community and a new idea of building a healthy city and improving public health.