As the smallest space unit for resi

As the smallest space unit for residents to complete their daily life activities, the life circle refers to a series of daily social activities which are carried out by urban residents with their own living place as the center and aimed at education, medical treatment, employment, commuting, service, social activities, entertainment and leisure, forming a spatial range covering various activities and functions. Through the description of commuting scope and shopping scope, life circle can describe the behavior characteristics of residents, such as activity time and activity space, which can well reflect the living style of residents in the living space unit, the demand for social infrastructure and public service facilities, as well as the requirements of life quality and living space. Furthermore, it can reasonably allocate social resources in urban and regional planning, and provide important basis for orderly organization of local life.