城市出行的尺度塑造社会经济融合

中文摘要 AI 辅助

城市日常出行决定了人们在城市中的出行距离及所遇到的人。随着本地生活和多中心规划日益普及，一个关键问题是更本地化的出行能否维持城市所具备的社会经济融合。然而，关于不同尺度的出行如何影响所经历的社会接触的系统证据仍然有限。本研究使用来自法国、德国和英国226个功能城市地区约2000万台设备的匿名GPS轨迹，将日常出行分解为近端、中端和远端三个尺度，并将这些尺度与目的地的社会经济构成关联起来。近端出行在各社区间长度相似，而中端和远端出行则向城市外围延伸得更长。远端出行占出行总量的33%，却促成了42%的群体间接触；将远端出行重新分配给本地出行会使所经历的融合减少多达三分之一。这些发现揭示了短途出行与综合城市生活之间存在一种权衡关系。

英文摘要

Urban daily mobility determines how far we travel and whom we encounter through the city. As local-living and polycentric planning gain popularity, a key question is whether more localised mobility can preserve the socioeconomic mixing that cities enable. Yet systematic evidence on how different scales of movement contribute to experienced social exposure remains limited. Here, we use anonymised GPS traces from ~20 million devices across 226 functional urban areas in France, Germany and the UK to decompose everyday mobility into three scales - proximal, medial and distal - and link these to the socioeconomic composition of destinations. Proximal trips remain similar in length across neighbourhoods, whereas medial and distal trips lengthen toward the periphery. Distal trips account for 33% of travel but facilitate 42% of inter-group encounters; reallocating them to local movement reduces experienced mixing by up to one third. These findings reveal a trade-off between shorter travel and integrated urban living.

发表机构

• Central European University（中欧大学）
• University of Glasgow（格拉斯哥大学）
• TU Dortmund University（多特蒙德工业大学）
• Universitat Pompeu Fabra（庞培法布拉大学）
• Max Planck Institute for Demographic Research（马克斯·普朗克人口研究研究所）
• Liverpool University（利物浦大学）

机构由 AI 辅助整理，请以论文原文为准。