摘要
Abstract
Population distribution in megacities is a hotspot for scholars.With the rise of big data,research methods and perspectives are also more diversified.We takes Shanghai as an example,based on the mobile phone signal data,to study the time & space characteristics of population distribution,the non-commuting travel characteristics,and short-term floating population distribution characteristics.Our main conclusions are as follows:Firstly,we can see the space distribution pattern of strong single population distribution center agglomeration,and weak center complementary.Secondly,the center city population shows a trend of increasing first and then decreasing,which is a pendulum movement rule.Thirdly,when the short-term stay days of the floating population are low,population distribution shows a northeast-southwest centripetal tendency,the longer the stay days are,the less centrality of population distribution showed.Fourthly,the power circle of the 29 centers cover the inner ring,outer ring,surrounding area and other areas in Shanghai.There is huge competition among the not commuting trips in the different areas of the central city.Finally,distance decay is attenuated fast in the center with a higher level and we can see the continuous trend in the business district located in the central city.关键词
大数据/人口分布/手机信令/非通勤出行Key words
Big data/Population distribution/Mobile phone signaling/Not commuting trip分类
建筑与水利
