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Eur. Phys. J. B 38, 381385 (2004) DOI: 10.1140/epjb/e2004-00131-0 THE EUROPEAN
 

Summary: Eur. Phys. J. B 38, 381385 (2004)
DOI: 10.1140/epjb/e2004-00131-0 THE EUROPEAN
PHYSICAL JOURNAL B
Modeling the world-wide airport network
R. Guimer`aa
and L.A.N. Amaralb
Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA
Received 12 November 2003 / Received in final form 14 January 2004
Published online 14 May 2004 c EDP Sciences, Societ`a Italiana di Fisica, Springer-Verlag 2004
Abstract. Recently, we have presented the first exhaustive analysis of the world-wide airport network. Two
important results of that study are that: (i) the world-wide airport network is a small-world network with
power-law decaying degree and betweenness centrality distributions; (ii) the most connected cities (largest
degree) are typically not the most central cities (largest betweenness centrality). This second finding is
particularly significant because of results demonstrating that nodes with high betweenness tend to play
a more important role in keeping networks connected than those with high degree. Here, we investigate
if current network models can explain this finding and we show that they cannot. Thus, we propose a
new model that explains this behavior in terms of the geo-political constraints that affect the growth of
the airport network. We further hypothesize that in other infrastructures, affected by similar geo-political
constraints, critical locations might not coincide with highly-connected hubs.
PACS. 89.75.Fb Structures and organization in complex systems 89.75.Da Systems obeying scaling laws

  

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

 

Collections: Physics; Biology and Medicine