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008 | 210412b ||||| |||| 00| 0 eng d | ||
100 |
_aJacob Dibble, _945776 |
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245 | _aOn the origin of spaces: Morphometric foundations of urban form evolution | ||
260 |
_bSage, _c2019. |
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300 | _aVol 46, Issue 4, 2019,(707-730 p.) | ||
520 | _aThe modern discipline of urban morphology gives us a ground for the comparative analysis of cities, which increasingly includes specific quantitative elements. In this paper, we make a further step forward towards the definition of a general method for the classification of urban form. We draw from morphometrics and taxonomy in life sciences to propose such method, which we name ‘urban morphometrics’. We then test it on a unit of the urban landscape named ‘Sanctuary Area’ (SA), explored in 45 cities whose origins span four historic time periods: Historic (medieval), Industrial (19th century), New Towns (post-WWII, high-rise) and Sprawl (post-WWII, low-rise). We describe each SA through 207 physical dimensions and then use these to discover features that discriminate them among the four temporal groups. Nine dimensions emerge as sufficient to correctly classify 90% of the urban settings by their historic origins. These nine attributes largely identify an area's ‘visible identity’ as reflected by three characteristics: (1) block perimeterness, or the way buildings define the street-edge; (2) building coverage, or the way buildings cover the land and (3) regular plot coverage, or the extent to which blocks are made of plots that have main access from a street. Hierarchical cluster analysis utilising only the nine key variables nearly perfectly clusters each SA according to its historic origin; moreover, the resulting dendrogram shows, just after WWII, the first ‘bifurcation’ of urban history, with the emergence of the modern city as a new ‘species’ of urban form. With ‘urban morphometrics’ we hope to extend urban morphological research and contribute to understanding the way cities evolve. | ||
650 |
_aEvolution, _941815 |
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650 |
_aurban morphometrics, _945777 |
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650 |
_aurban morphology _945778 |
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700 |
_aPrelorendjos, Alexios _945779 |
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700 |
_aRomice, Ombretta _945780 |
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700 |
_aZanella, Mattia _945781 |
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700 |
_aStrano, Emanuele _945782 |
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700 |
_aPagel, Mark _945783 |
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700 |
_aPorta, Sergio _945784 |
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773 | 0 |
_011590 _915512 _dSage 2019. _t Environment and Planning B: Urban Analytics and City Science |
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856 | _uhttps://doi.org/10.1177/2399808317725075 | ||
942 |
_2ddc _cART |