Evaluation and Analysis of Environmental Aging of Public Space in Cold Urban Settlements Based on Importance Performance Analysis Theory—Taking Urumqi as an Example

With the development of the Global Sustainable Development Goals, urban communities are increasingly focusing on sustainable development and all-age health and well-being, and the aging level of China will reach 21.1% in 2024. The aging process is accelerating, and the problem of population aging is becoming more and more serious, so it is more and more necessary and urgent to study the aging of the public space environment in urban settlements. Based on the research data of Urumqi settlements, this study utilizes importance performance analysis to evaluate the performance and importance of the aging public space environment. The main criteria elements for aging are identified as function and space, traffic and streamlining, services and facilities, green landscape and microclimate, and subjective soft needs; and the key evaluation indicators for aging are further refined. The results show that the surrounding urban environment, activity space abundance, building quality, building environment, external spatial layout, internal transportation, facilities, management, aging facilities, elderly service facilities, landscape, microclimate, and cultural activities are the key elements that need to be improved in order to improve the aging of the public space environment of cold urban settlements.