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Sequential Hazards Resilience of Interdependent Infrastructure System: A Case Study of Greater Toronto Area Energy Infrastructure System

机译：相互依存基础设施系统的顺序危害 - 大多雅地区能源基础设施系统的案例研究

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摘要

Coupled infrastructure systems and complicated multihazards result in a high level of complexity and make it difficult to assess and improve the infrastructure system resilience. With a case study of the Greater Toronto Area energy system (including electric, gas, and oil transmission networks), an approach to analysis of multihazard resilience of an interdependent infrastructure system is presented in the article. Integrating network theory, spatial and numerical analysis methods, the new approach deals with the complicated multihazard relations and complex infrastructure interdependencies as spatiotemporal impacts on infrastructure systems in order to assess the dynamic system resilience. The results confirm that the effects of sequential hazards on resilience of infrastructure (network) are more complicated than the sum of single hazards. The resilience depends on the magnitude of the hazards, their spatiotemporal relationship and dynamic combined impacts, and infrastructure interdependencies. The article presents a comparison between physical and functional resilience of an electric transmission network, and finds functional resilience is always higher than physical resilience. The multiple hazards resilience evaluation approach is applicable to any type of infrastructure and hazard and it can contribute to the improvement of infrastructure planning, design, and maintenance decision making.
机译：耦合基础设施系统和复杂的多血淋力使得具有高度的复杂性，并使难以评估和改善基础设施系统的弹性。通过对更大的多伦多地区能量系统（包括电气，气体和发油网络）的案例研究，在文章中提出了一种分析相互依存基础设施系统的多血淋力弹性的方法。整合网络理论，空间和数值分析方法，新方法涉及复杂的多士关系和复杂的基础设施相互依赖性，作为对基础设施系统的时空影响，以评估动态系统弹性。结果证实，顺序危害对基础设施恢复性（网络）的影响比单一危险的总和更复杂。弹性取决于危害的程度，它们的时空关系和动态联合影响以及基础设施相互依赖性。该物品呈现了电传输网络的物理和功能弹性之间的比较，并且发现功能弹性总是高于物理弹性。多种危险性恢复力评估方法适用于任何类型的基础设施和危险，它可以有助于改善基础设施规划，设计和维护决策。

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