RESILIENCE STRATEGIES FOR INTERDEPENDENT MULTISCALE LIFELINE INFRASTRUCTURE NETWORKS

摘要

The National Infrastructure Advisory Council identifies four lifeline infrastructure networks, specifically energy, communication, water and transportation, which underpin the critical functions of business, government and communities. Acute disturbances can cause cascading failures in interdependent network-of-networks resulting in severe loss of essential functionality and devastation at community, urban and regional scales. Quantitative recovery strategies, designed in anticipation of failure, inform timely, reliable and on-budget restoration. Post-hazards learning at recovery time helps develop anti-fragility, which is the ability of systems to attain a higher level of functionality and/or a state of greater robustness than the pre-disaster state. We propose an analytical resilience framework, which considers both failure and recovery processes of networked systems integrating complex networks science. A case study with real and simulated data showcases the potential value of our approach, while motivating systematic evaluation strategies and the need for gathering, benchmarking, and widely disseminating critical infrastructure information.