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Despite the prevalence of polycentricity as a normative strategy in planning documents, a lengthy and inconclusive debate regarding its definition in academic research persists. The aim of this article is to eliminate the conceptual confusion surrounding functional polycentricity from a geographical perspective. By classifying different approaches to polycentricity, we outline the properties that...
We proposed a methodology to evaluate the effectiveness of Beijing’s Urban Growth Boundaries (UGBs) using human mobility and activity records (big data). The research applied data from location check-in, transit smart card, taxi trajectory, and residential travel survey. We developed four types of measures to evaluate the effectives of UGBs in confining human activities and travel flows, to examine...
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