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#1
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oyster data analysis
http://arxiv.org/abs/1001.4915
Commuting in a polycentric city Camille Roth, Soong Moon Kang, Michael Batty, Marc Barthelemy The spatial arrangement of urban hubs and centers and how individuals interact with these centers is a crucial problem with many applications ranging from urban planning to epidemiology. We utilize here in an unprecedented manner the large scale, real-time 'Oyster' card database of individual person movements in the London subway to reveal the structure and organization of the city. We show that patterns of intraurban movement are strongly heterogeneous in terms of volume, but not in distance, and that there is a polycentric structure composed of simple flow patterns organized around a limited number of activity centers arranged in a hierarchical way. This new understanding can shed light on the impact of new urban projects on the evolution of the polycentric configuration of a city and provides an initial approach to modeling flows in an urban system. #Paul |
#2
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oyster data analysis
On Thu, 28 Jan 2010, wrote:
http://arxiv.org/abs/1001.4915 Commuting in a polycentric city Good to see interesting things are being done with the Oyster data. Not convinced by their clustering algorithm, but it's still worth reading. tom -- I know thats not really relevant but I've just typed the words and my backspace key doesn't work. -- phorenzik |
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