摘要
伴随着LAD和LBS的发展及应用,用户的数字足迹为有效展现城市人口流动的轨迹和时空聚集状态提供了便利,弥补了传统城市调研和空间规划的缺陷。本文借助百度热力图,并结合Arc GIS,分析了武汉主城区人口在典型日期(工作日和休息日)流动的时空特征。结果表明:人口集聚表现出明显的波动性变化,工作日的波动性强于休息日;出行时间存在着相位差,休息日的滞后性和后延性更强。人群活动的时间节律主要受规则性和自由性活动的控制。在空间上,工作日与休息日高集聚的场所有一定差异,工作日以商业中心、交通枢纽和就业中心为主,表现出非常明显的工作指向性;休息日则指向传统的购物中心、大型交通枢纽和新兴城市综合体。因此,需要对武汉市城市总体规划中的部分"中心"进行优化。
With the development and application of LAD and LBS,the digital footprint of the user has provided convenience for effectively displaying the trajectory of urban population flow and the spatio-temporal aggregation,which makes up for the shortcomings of traditional urban research and spatial planning.With the help of Baidu heat map and ArcGIS,this paper analyzes the temporal-spatial footprint of population flow of the central city of Wuhan City.The results showed that:the population agglomeration showed obvious fluctuation,but the fluctuation of working days was stronger than that of the rest days,and the activity track was highly consistent with the commuting rhythm,while the rest day was more stable.There is a phase difference between working days and rest days;the time of population flow and accumulation is earlier than the rest;the afternoon,the day of rest,the time of population flow and focus lag behind the working days.Whether on weekdays or on the day off,the concentration of the morning is low,and the concentration of people in the afternoon and evening is higher,and is much higher than that in the morning.In the spatial footprint,the working day and the rest day are gathering together the spatial position approximately same,the working day mainly is the commercial center,the transportation hub and the employment center,displays the very obvious work direction.Days off point to traditional shopping centre,large transportation hubs and emerging urban complexes.
出处
《西部人居环境学刊》
2018年第2期52-56,共5页
Journal of Human Settlements in West China
关键词
百度热力图
城市人群
时空特征
武汉市主城区
Baidu Heat Map
Temporal-spatial Footprint of Population Flow
the central areas of Wuhan City
作者简介
教授,博士生导师,wanglc007@163.com
