The inverted U-shaped effect of urban hotspots spatial compactness on urban economic growth.

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ID: 91367
2019
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Abstract
The compact city, as a sustainable concept, is intended to augment the efficiency of urban function. However, previous studies have concentrated more on morphology than on structure. The present study focuses on urban structural elements, i.e. urban hotspots consisting of high-density and high-intensity socioeconomic zones, and explores the economic performance associated with their spatial structure. We use night-time luminosity data and the method to identify and extract the hotspot and ultimately draw two conclusions. First, with population increasing, the hotspot number scales sublinearly with an exponent of approximately 0.50-0.55, regardless of the location in China, the EU or the USA, while the intersect values are totally different, which is mainly due to different economic developmental level. Secondly, we demonstrate that the compactness of hotspots imposes an inverted U-shaped influence on economic growth, which implies that an optimal compactness coefficient does exist. These findings are helpful for urban planning.
Reference Key
xu2019theroyal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Xu, Weipan;Chen, Haohui;Frias-Martinez, Enrique;Cebrian, Manuel;Li, Xun;
Journal Royal Society open science
Year 2019
DOI
10.1098/rsos.181640
URL
Keywords
compactness hotspot urban economic growth

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