摘要
针对低等级城市的人流活力研究存在的数据稀疏、研究分析角度局限等问题,结合低等级城市的数据特点,深入探讨低等级城市的人流活力分析方法。从空间对人流的吸引力、空间活动多样性以及空间人流共享性多视角出发,利用网格人流重访强度、网格活动混合度以及网格人流交互网络中心性等3个特征量,建立顾及活动类型及空间交互的低等级城市人流活力分析框架,并通过莫兰指数分析人流空间集聚程度。以宁德市蕉城区兴趣点(point of interest,POI)数据和含年龄区间的手机信令数据为例,进行城区人流活力综合分析。结果表明:蕉城区形成了以19~49岁年龄层为主,蕉南北街道、东侨开发区和城南镇为中心的人流交互网络;蕉城区人流在空间上形成了2个集聚区,在空间上整体存在明显的高-低聚类的分布规律,形成了以高活力集聚区为中心向外扩散逐渐减小的趋势,主要是向北部新城与沿海方向扩散。分析方法从更真实的角度反映城市人流活力,可及时发现发展不均衡地区,为城市空间的全面均衡发展提供依据。
In view of sparse data,limited research and analytic angles in the field of urban crowd activity in low-level cities,this paper proposes to use the three characteristic quantities:the revisit intensity of urban crowd(RIUC),the mixing degree of activity types(ATMD),and the centrality of the spatial flow interaction network(CSFIN),and establishes a urban crowd activity analytic framework that considers the types of activities and spatial interactions,calculating the concentration of people through the Morans’I.Based on POI data in Jiaocheng District of Ningde City and cellular signaling data including age groups,a comprehensive analysis of urban crowd activity was carried out.The results are as follows:The RIUC has obvious differences in age groups,and the overall distribution of the spatial interaction of Jiaocheng crowd activity is significantly different,which forms a crowd interactive network where people in the 19~49 age group,are the majority,and Jiao Nanbei Street,Dongqiao Development Zone and Chengnan Township are centered.Jiaocheng District crowd activity has formed two agglomerations spatially:one is a high-energy agglomeration area centered on the southeast of Jiao Nanbei Street,the west of Dongqiao Development Zone and the northeast of Chengnan Township,the other one is a low-energy cluster of crowd activity centered on the southeast of Qidu Township and the northwest of Zhangwan Township.There is an obvious trend of high-low clustering in the overall spatial crowd activity in Jiaocheng District,forming a trend of gradually decreasing outward diffusion centered on high-energy clusters.On the whole,the development of Jiaocheng District is extremely uneven.It can be seen from the flow of people that Jiaocheng District is spreading from the central city to the northern new zone and the coast.This approach reflects the dynamics of urban flows from a more realistic perspective,identifies areas of uneven development,and provides a strong basis for the comprehensive and balanced development of urban space.
作者
姚铖鑫
邬群勇
张强
叶蔚甄
王雄
YAO Chengxin;WU Qunyong;ZHANG Qiang;YE Weizhen;WANG Xiong(Key Lab of Spatial Data Mining and Information Sharing of Ministry of Education,Fuzhou University,Fuzhou 350108,China;National&Local Joint Engineering Research Center of Satellite Geospatial Information Technology,Fuzhou 350108,China;The Academy of Digital China(Fujian),Fuzhou 350003,China;Fujian Urban&Rural Planning Design Institute,Fuzhou 350007,China;Cultiveted Land Protection Center of Ningde,Ningde 352100,China;Intelligent Map Surveying Limited Company of Ningde,Ningde 352100,China)
出处
《贵州大学学报(自然科学版)》
2021年第3期36-47,共12页
Journal of Guizhou University:Natural Sciences
基金
国家自然科学基金资助项目(47471333)
中央引导地方科技发展专项(2017L3012)。
关键词
人流活力
手机信令数据
POI数据
度中心性
莫兰指数
宁德市蕉城区
urban crowd activity
cellular signaling data
POI data
degree centrality
Moran’s I
Jiaocheng District of Ningde City