Research on the convenient life of the elderly in urban based on POI digital technique : — —A case study of Xi'an City

The convenience life is an important factor to evaluate the livable environment of urban elderly. Point of Interest data has the characteristics of high coverage of public service facilities and wide range of data. According to the life convenience and community life circle theory, this article classifies the travel purpose of the elderly which based on the POI digital technique with the life convenience index. These data which match the spatial distribution related to urban life of the elderly have been formed in existing communities, therefore it could provide the reference for special planning of urban service facilities for the elderly to live. Meanwhile, it could be utilized as urban open data to provide new ideas and methods to visualize spatial distribution.