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  Nonlocal failures in complex supply networks by single link additions

Witthaut, D., & Timme, M. (2013). Nonlocal failures in complex supply networks by single link additions. The European Physical Journal B, 86: 377. doi:10.1140/epjb/e2013-40469-4.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-0FB5-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-0FB6-B
Genre: Journal Article

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 Creators:
Witthaut, Dirk1, Author              
Timme, Marc1, Author              
Affiliations:
1Max Planck Research Group Network Dynamics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063295              

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Free keywords: Statistical and Nonlinear Physics
 Abstract: How do local topological changes affect the global operation and stability of complex supply networks? Studying supply networks on various levels of abstraction, we demonstrate that and how adding new links may not only promote but also degrade stable operation of a network. Intriguingly, the resulting overloads may emerge remotely from where such a link is added, thus resulting in nonlocal failures. We link this counter-intuitive phenomenon to Braess’ paradox originally discovered in traffic networks. We use elementary network topologies to explain its underlying mechanism for different types of supply networks and find that it generically occurs across these systems. As an important consequence, upgrading supply networks such as communication networks, biological supply networks or power grids requires particular care because even adding only single connections may destabilize normal network operation and induce disturbances remotely from the location of structural change and even global cascades of failures.

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Language(s): eng - English
 Dates: 2013-08-06
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Degree: -

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Title: The European Physical Journal B
  Alternative Title : Eur. Phys. J. B
Source Genre: Journal
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Pages: - Volume / Issue: 86 Sequence Number: 377 Start / End Page: - Identifier: -