Journal
RELIABILITY ENGINEERING & SYSTEM SAFETY
Volume 206, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ress.2020.107307
Keywords
Robustness; Complex networks; Transportation systems; Communities
Funding
- National Natural Science Foundation of China [61861136005, 61851110763]
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This study proposes estimating and improving the robustness of transportation systems by utilizing the presence of communities in complex network representations. The community structure and the edges connecting communities help to create a framework for better analysis and protection of transportation systems efficiently and scalably.
Throughout the past years, researchers increasingly study the resilience of transportation systems through the lens of complex networks. This model simplification has helped to identify bottlenecks for all kinds of systems, e.g., subway, railway, and road networks. Nevertheless, for large networks, with ten thousand and more nodes, standard complex network-based robustness analysis methods do not scale up well. In this study, we propose to estimate and improve the robustness of transportation systems by exploiting the presence of communities in complex network representations. A community, by definition, is densely connected inside, but loosely connected to other components in the system. Accordingly, the community structure and the induced edges connecting communities can help to orchestrate a framework for better analysis and protection of our transportation systems. Experiments on twelve real-world transportation systems demonstrate the efficiency and scalability of our novel community-based framework.
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