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Natural Cities Generated from All Building Locations in America

Faculty of Engineering and Sustainable Development, Division of GIScience, University of Gävle, SE-801 76 Gävle, Sweden
Received: 2 April 2019 / Revised: 24 April 2019 / Accepted: 28 April 2019 / Published: 29 April 2019
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Authorities define cities—or human settlements in general—through imposing top-down rules in terms of whether buildings belong to cities. Emerging geospatial big data makes it possible to define cities from the bottom up, i.e., buildings determine themselves whether they belong to a city using the notion of natural cities and based on head/tail breaks, which is a classification and visualization tool for data with a heavy-tailed distribution. In this paper, we used 125 million building locations—all building footprints of America (mainland) or their centroids more precisely—to generate 2.1 million natural cities in the country (see the URL as shown in the note of Figure 1). In contrast to government defined city boundaries, these natural cities constitute a valuable data source for city-related research. View Full-Text
Keywords: head/tail breaks; natural cities; Zipf’s law; geospatial big data head/tail breaks; natural cities; Zipf’s law; geospatial big data

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Jiang, B. Natural Cities Generated from All Building Locations in America. Data 2019, 4, 59.

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