Abstract:
:Understanding human mobility is crucial for applications such as forecasting epidemic spreading, planning transport infrastructure and urbanism in general. While, traditionally, mobility information has been collected via surveys, the pervasive adoption of mobile technologies has brought a wealth of (real time) data. The easy access to this information opens the door to study theoretical questions so far unexplored. In this work, we show for a series of worldwide cities that commuting daily flows can be mapped into a well behaved vector field, fulfilling the divergence theorem and which is, besides, irrotational. This property allows us to define a potential for the field that can become a major instrument to determine separate mobility basins and discern contiguous urban areas. We also show that empirical fluxes and potentials can be well reproduced and analytically characterized using the so-called gravity model, while other models based on intervening opportunities have serious difficulties.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Mazzoli M,Molas A,Bassolas A,Lenormand M,Colet P,Ramasco JJdoi
10.1038/s41467-019-11841-2subject
Has Abstractpub_date
2019-08-29 00:00:00pages
3895issue
1issn
2041-1723pii
10.1038/s41467-019-11841-2journal_volume
10pub_type
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