Hierarchical organization of urban mobility and its connection with city livability

Bassolas,Aleix;Barbosa-Filho,Hugo;Dickinson,Brian;Dotiwalla,Xerxes;Eastham,Paul;Gallotti,Riccardo;Ghoshal,Gourab;Gipson,Bryant;Hazarie,Surendra A.; Kautz,Henry;Kucuktunc,Onur;Lieber,Allison;Sadilek,Adam;Ramasco,José Javier
Nature Communications 10, 4817 (2019)

The recent trend of rapid urbanization makes it imperative to understand urban characteristics such as infrastructure, population distribution, jobs, and services that play a key role in urban livability and sustainability. A healthy debate exists on what constitutes optimal structure regarding livability in cities, interpolating, for instance, between mono- and poly-centric organization. Here anonymous and aggregated flows generated from three hundred million users, opted-in to Location History, are used to extract global Intra-urban trips. We develop a metric that allows us to classify cities and to establish a connection between mobility organization and key urban indicators. We demonstrate that cities with strong hierarchical mobility structure display an extensive use of public transport, higher levels of walkability, lower pollutant emissions per capita and better health indicators. Our framework outperforms previous metrics, is highly scalable and can be deployed with little cost, even in areas without resources for traditional data collection.

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