The shapes of US cities: Revisiting the classic population density functions using crowdsourced geospatial data.
The declining pattern of population density from city centres to the outskirts has been widely observed in American cities. Such a pattern reflects a trade-off between housing price/commuting cost and employment. However, most previous studies in urban population density functions are based on the E...
| Publicado en: | Urban Studies (Sage Publications, Ltd.) Vol. 57; no. 10; pp. 2147 - 2163 |
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| Autores principales: | , , |
| Formato: | Artículo |
| Publicado: |
Sage Publications, Ltd.
Aug2020
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=144690927&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 144690927 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00420980 54XY jtl: Urban Studies (Sage Publications, Ltd.) issn: 00420980 maglogo: Y pubinfo: dt: Aug2020 vid: 57 iid: 10 pid: 2171 pub: Sage Publications, Ltd. artinfo: ui: 144690927 10.1177/0042098019871191 ppf: 2147 ppct: 16 formats: tig: atl: The shapes of US cities: Revisiting the classic population density functions using crowdsourced geospatial data. aug: au: Qiang, Yi Xu, Jinwen Zhang, Guohui affil: Department of Geography and Environment, University of Hawaii at Manoa Department of Civil and Environmental Engineering, University of Hawaii at Manoa su: United States Population density Cities & towns -- Population distribution Cities & towns Commuting Economic models Geospatial data sug: subj: Population density Cities & towns -- Population distribution Cities & towns Commuting Economic models United States Geospatial data keyword: 交通 人口分布 众包地理空间数据 劳动力 土地使用 城市化 就业 集聚 agglomeration crowdsourced geospatial data employment labour land use population distribution transport urbanisation 交通 人口分布 众包地理空间数据 劳动力 土地使用 城市化 就业 集聚 agglomeration crowdsourced geospatial data employment labour land use population distribution transport urbanisation ab: The declining pattern of population density from city centres to the outskirts has been widely observed in American cities. Such a pattern reflects a trade-off between housing price/commuting cost and employment. However, most previous studies in urban population density functions are based on the Euclidean distance, and do not consider commuting cost in cities. This study provides an empirical evaluation of the classic population density functions in 382 metropolitan statistical areas (MSA) in the USA using travel times to city centres as the independent variable. The major findings of the study are: (1) the negative exponential function has the overall best fit for population density in the MSAs; (2) the Gaussian and exponential functions tend to fit larger MSAs, while the power function has better performance for small MSAs; (3) most of the MSAs appear to show a decentralisation trend during 1990–2016, and larger MSAs tend to have a higher rate of decentralisation. This study leverages crowdsourced geospatial data to provide empirical evidence of the classic urban economic models. The findings will increase our understanding about urban morphology, population–job displacement and urban decentralisation. The findings also provide baseline information to monitor and predict the changing trend of urban population distribution that could be driven by future environmental and technological changes. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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