Exploring pedestrian permeability in urban sidewalk networks

IF 5.3 1区 数学 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS Chaos Solitons & Fractals Pub Date : 2025-02-21 DOI:10.1016/j.chaos.2025.116114
Robert Benassai-Dalmau, Javier Borge-Holthoefer, Albert Solé-Ribalta
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Abstract

Understanding and characterizing pedestrian mobility is essential for designing more sustainable urban environments. While many studies have examined pedestrian mobility and navigation from diverse perspectives, the analysis of how geospatial features and city organization facilitate or hinder pedestrian movement has been relatively limited. This gap underscores the need for theoretical and analytical approaches. To this end, we explore pedestrian mobility through the lens of discrete vector fields, leveraging random walk models to analyze the impact of sidewalk network structures on pedestrian dynamics. The comparison of discrete-time and continuous-time random walks confirms that the latter provides a suitable framework, as it allows to incorporates edge lengths and pedestrian speeds. Findings highlight that areas with shorter edge links and more intricate network structures exhibit higher pedestrian permeability, supporting urban theories on walkability and accessibility, as described by Jacobs. These results cannot be directly obtained with discrete-time random walks. Testing on sidewalk networks from Barcelona, Paris, and Boston demonstrates how local geometric features and street layouts shape pedestrian permeability. This framework offers a novel quantitative approach to urban mobility, reinforcing theoretical perspectives on urban permeability and providing insights for fostering pedestrian-friendly city designs.
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要设计出更具可持续性的城市环境,了解和描述行人流动性至关重要。虽然许多研究从不同角度对行人流动性和导航进行了研究,但对地理空间特征和城市组织如何促进或阻碍行人流动的分析却相对有限。这一差距凸显了对理论和分析方法的需求。为此,我们通过离散矢量场的视角来探索行人的流动性,利用随机行走模型来分析人行道网络结构对行人动态的影响。对离散时间随机行走和连续时间随机行走的比较证实,后者提供了一个合适的框架,因为它允许纳入边缘长度和行人速度。研究结果表明,边缘链路较短、网络结构较为复杂的地区,行人渗透性较高,这支持了雅各布斯提出的关于步行性和可达性的城市理论。这些结果是离散时间随机行走无法直接获得的。对巴塞罗那、巴黎和波士顿的人行道网络进行的测试表明,当地的几何特征和街道布局是如何影响行人通透性的。这一框架为城市交通提供了一种新颖的定量方法,强化了城市渗透性的理论观点,并为促进行人友好型城市设计提供了启示。
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来源期刊
Chaos Solitons & Fractals
Chaos Solitons & Fractals 物理-数学跨学科应用
CiteScore
13.20
自引率
10.30%
发文量
1087
审稿时长
9 months
期刊介绍: Chaos, Solitons & Fractals strives to establish itself as a premier journal in the interdisciplinary realm of Nonlinear Science, Non-equilibrium, and Complex Phenomena. It welcomes submissions covering a broad spectrum of topics within this field, including dynamics, non-equilibrium processes in physics, chemistry, and geophysics, complex matter and networks, mathematical models, computational biology, applications to quantum and mesoscopic phenomena, fluctuations and random processes, self-organization, and social phenomena.
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