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2006 Nature Publishing Group The scaling laws of human travel

Summary: © 2006 Nature Publishing Group
The scaling laws of human travel
D. Brockmann1,2
, L. Hufnagel3
& T. Geisel1,2,4
The dynamic spatial redistribution of individuals is a key driving
force of various spatiotemporal phenomena on geographical
scales. It can synchronize populations of interacting species,
stabilize them, and diversify gene pools1­3
. Human travel, for
example, is responsible for the geographical spread of human
infectious disease4­9
. In the light of increasing international trade,
intensified human mobility and the imminent threat of an influ-
enza A epidemic10
, the knowledge of dynamical and statistical
properties of human travel is of fundamental importance. Despite
its crucial role, a quantitative assessment of these properties on
geographical scales remains elusive, and the assumption that
humans disperse diffusively still prevails in models. Here we


Source: Ahlers, Guenter - Department of Physics, University of California at Santa Barbara
Max-Planck-Institut für Dynamik und Selbstorganisation, Department of Nonlinear Dynamics


Collections: Mathematics; Physics