Hu Fuyu;Yeung Chiho;Yang Saini;Wang Weiping;Zeng An

[Hu, Fuyu; Yang, Saini; Wang, Weiping] Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China.

[Hu, Fuyu; Yang, Saini; Wang, Weiping] Beijing Normal Univ, Acad Disaster Reduct & Emergency Management, Beijing 100875, Peoples R China.

[Yeung, Chi Ho] Hong Kong Inst Educ, Dept Sci & Environm Studies, Tai Po, Hong Kong, Peoples R China.

[Zeng, An] Beijing Normal Univ, Sch Syst Sci, Beijing 100875, Peoples R China.

ABSTRACT:  The stability of infrastructure network is always a critical issue studied by researchers in different fields. A lot of works have been devoted to reveal the robustness of the infrastructure networks against random and malicious attacks. However, real attack scenarios such as earthquakes and typhoons are instead localised attacks which are investigated only recently. Unlike previous studies, we examine in this paper the resilience of infrastructure networks by focusing on the recovery process from localised attacks. We introduce various preferential repair strategies and found that they facilitate and improve network recovery compared to that of random repairs, especially when population size is uneven at different locations. Moreover, our strategic repair methods show similar effectiveness as the greedy repair. The validations are conducted on simulated networks, and on real networks with real disasters. Our method is meaningful in practice as it can largely enhance network resilience and contribute to network risk reduction.

Published in SCIENTIFIC REPORTS.2016

DOI: 10.1038/srep24522