From trajectories to network: Delineating the spatial pattern of recreational walking in Guangzhou

IF 4 2区 地球科学 Q1 GEOGRAPHY Applied Geography Pub Date : 2024-07-29 DOI:10.1016/j.apgeog.2024.103344
Haochen Shi , Linlin Yao , Qiqi Liu , Yankai Wang , Zongcai Wei , Miaoxi Zhao , Ding Ma
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Abstract

Recreational walking is increasingly recognized as an essential aspect of daily life, whose network structure serving as a crucial tool for characterizing activity patterns. However, existing methods lacks consideration of the heterogeneous spatial configuration when constructing recreational walking networks, thereby fall short in accurately identifying ‘nodes’ and establishing ‘links’. This study aims to address these gaps by revising the network construction process. To do so, we incorporate the ‘self-organized’ nature of recreational activities and apply a ‘resource’ allocation method from user recommendation algorithms. Using downtown Guangzhou as a case study, the revised methodological framework can capture the striking spatial heterogeneity in walking activities. Such a heterogeneity is demonstrated by a pronounced rank-size effect in network ‘nodes’ and a notably low weighted clustering coefficient. Further, the detection of seven distinct communities outlines the broader spatial structure of these activities. The study concludes by exploring how this network analysis is capable of developing planning-based maps and enhancing ex-ante evaluations of urban planning initiatives.

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从轨迹到网络:广州休闲步行的空间模式划分
人们日益认识到,休闲步行是日常生活的一个重要方面,其网络结构是描述活动模式的重要工具。然而,现有方法在构建休闲步行网络时缺乏对异质空间配置的考虑,因此在准确识别 "节点 "和建立 "链接 "方面存在不足。本研究旨在通过修改网络构建过程来弥补这些不足。为此,我们结合了休闲活动的 "自组织 "特性,并应用了用户推荐算法中的 "资源 "分配方法。以广州市中心为案例,修订后的方法框架可以捕捉到步行活动中显著的空间异质性。这种异质性体现在网络 "节点 "明显的等级大小效应和显著较低的加权聚类系数上。此外,研究还发现了七个不同的社区,勾勒出这些活动更广泛的空间结构。研究最后探讨了这种网络分析如何能够开发基于规划的地图,并加强对城市规划举措的事前评估。
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来源期刊
Applied Geography
Applied Geography GEOGRAPHY-
CiteScore
8.00
自引率
2.00%
发文量
134
期刊介绍: Applied Geography is a journal devoted to the publication of research which utilizes geographic approaches (human, physical, nature-society and GIScience) to resolve human problems that have a spatial dimension. These problems may be related to the assessment, management and allocation of the world physical and/or human resources. The underlying rationale of the journal is that only through a clear understanding of the relevant societal, physical, and coupled natural-humans systems can we resolve such problems. Papers are invited on any theme involving the application of geographical theory and methodology in the resolution of human problems.
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