由于近20年来我国实行了严格的计划生育政策，北京市人口出生率不断下降；随着生活水平的提高，人们更加健康长寿。因此，我市老年人日占全市总人口的比例增长较快。人口结构的变化必然对城市规划提出新的要求。为此，我们对全市人日结构变化情况，以及新老住宅小区内各项配套 Since China has implemented a strict family planning policy in the past 20 years, the birth rate in Beijing has been declining. With the improvement of living standards, people are living longer and healthier lives. Therefore, the proportion of elderly people in the city accounts for a faster increase in the total population of the city. Changes in the demographic structure will inevitably put new demands on urban planning. To this end, we have a change in the structure of the city’s human-day structure, as well as various supporting facilities in the old and new residential areas.