| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Worldwide Marine Transportation Network: Efficiency and Container Throughput |
| DENG Wei-Bing, GUO Long, LI Wei, CAI Xu |
| Complexity Science Center, Institute of Particle Physics, Central China Normal University, Wuhan 430079 |
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| Cite this article: |
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DENG Wei-Bing, GUO Long, LI Wei et al 2009 Chin. Phys. Lett. 26 118901 |
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Abstract Through empirical analysis of the global structure of the Worldwide Marine Transportation Network (WMTN), we find that the WMTN, a small-world network, exhibits an exponential-like degree distribution. We hereby investigate the efficiency of the WMTN by employing a simple definition. Compared with many other transportation networks, the WMTN possesses relatively low efficiency. Furthermore, by exploring the relationship between the topological structure and the container throughput, we find that strong correlations exist among the container throughout the degree and the clustering coefficient. Also, considering the navigational process that a ship travels in a real shipping line, we obtain that the weight of a seaport is proportional to the total probability contributed by all the passing shipping lines.
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| Keywords:
89.75.Fb
89.40.Cc
05.90.+m
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Received: 08 July 2009
Published: 30 October 2009
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| PACS: |
89.75.Fb
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(Structures and organization in complex systems)
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89.40.Cc
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(Water transportation)
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05.90.+m
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(Other topics in statistical physics, thermodynamics, and nonlinear dynamical systems)
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