2020
DOI: 10.1115/1.4046327
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Evaluating the Magnitude and Spatial Extent of Disruptions Across Interdependent National Infrastructure Networks

Abstract: Critical infrastructure networks are geographically distributed systems spanning multiple scales. These networks are increasingly interdependent for normal operations, which causes localized asset failures from natural hazards or man-made interference to propagate across multiple networks, affecting those far removed from an initiating failure event. This paper provides methodology to identify such failure propagation effects by quantifying the spatial variability in magnitude, frequency, and disruptive reach … Show more

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Cited by 21 publications
(36 citation statements)
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“…The framework comprises five components: (A) Infrastructure Model, (B) Hazard Scenario, (C) Failure Propagation, (D) Disruption Metrics, and (E) Recovery. Each of these components is briefly outlined below and discussed in more detail by Zorn et al [44,54].…”
Section: Methodology Integrated Disaster Impact Reduction Modelling Framework For Infrastructure Networkmentioning
confidence: 99%
See 2 more Smart Citations
“…The framework comprises five components: (A) Infrastructure Model, (B) Hazard Scenario, (C) Failure Propagation, (D) Disruption Metrics, and (E) Recovery. Each of these components is briefly outlined below and discussed in more detail by Zorn et al [44,54].…”
Section: Methodology Integrated Disaster Impact Reduction Modelling Framework For Infrastructure Networkmentioning
confidence: 99%
“…Using these network models, initial asset failures or disruptions are assumed based on the network assets' intersection with the modelled hazard extents in (B) Hazard Scenario. Such approaches are established within the literature [2,21,45] and have been used in a range of infrastructure risk and vulnerability studies globally, including studies of interdependent infrastructure vulnerability assessment for New Zealand [44,46].…”
Section: Methodology Integrated Disaster Impact Reduction Modelling Framework For Infrastructure Networkmentioning
confidence: 99%
See 1 more Smart Citation
“…However, after a real event, interdependencies on other lifelines could play a significant role in outage time of the water services particularly in terms of availability of road access to the repair site and electricity/fuel supply to run pump stations or generators. Modelling interdependencies of critical infrastructure networks has been an active research area at least for the past two decades and several methods addressing different levels of complexities and their appropriateness have been investigated ( [46][47][48], among others). In addition, there is new interest and need for developing decision support tools to test different intervention options and their effects on improved network performance.…”
Section: Repair Rates For Fixing the Pipesmentioning
confidence: 99%
“…The task of infrastructure impact assessment due to natural hazards relies on a number of different models representing hazard, the performance of individual infrastructure network components, collective performance of each infrastructure network and the interdependencies between multiple infrastructure networks. Software packages to address various aspects of these individual models have recently been developed [1][2][3][4][5][6]. Even though these models are developed for their specific purposes, it is fundamental to link these models and increase their uptake in hazard-impact assessments.…”
Section: Introductionmentioning
confidence: 99%