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The scaling laws of human travel D. Brockmann1,2

Summary: 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
report on a solid and quantitative assessment of human travelling


Source: Amaral, Luis A.N. - Department of Chemical and Biological Engineering, Northwestern University
Ottino, Julio M. - Department of Mechanical Engineering, Northwestern University


Collections: Biology and Medicine; Engineering; Materials Science; Physics