Global and Local Information in Traffic Congestion

Details Global and Local Information in Traffic Congestion Global and Local Information in Traffic Congestion

2009-05-16

arxiv.org/abs/0905.2667v2

Nonlinear Sciences

Adaptation and Self-Organizing Systems

4 pages, 5 figures, preprint; corrected typos and minor format issues

Scientific paper

A generic network flow model of transport (of relevance to information transport as well as physical transport) is studied under two different control protocols. The first involves information concerning the global state of the network, the second only information about nodes' nearest neighbors. The global protocol allows for a larger external drive before jamming sets in, at the price of significant larger flow fluctuations. By triggering jams in neighboring nodes, the jamming perturbation grows as a pulsating core. This feature explains the different results for the two information protocols.

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