Abstract
An infrastructure impact assessment process relies on the analysis of multiple types of models, the performance of individual infrastructure networks and the interdependencies between multiple infrastructure networks. Several models are developed for their specific purposes and there is a need to link these models for the assessment of natural hazard impacts on distributed infrastructures to deliver the desired outcomes on network functionality and disruption levels that are suitable to assess socio-economic impact. In this paper, an ‘end-to-end’ linkage structure is proposed to link different models by which various features, data standards, parameters and structures are linked in a transparent and consistent manner. The framework has adopted a dedicated knowledge discovery and data analysis process to acquire information around input and output parameters for each of these models developed by various researchers and used in risk assessment tools. The framework is illustrated by applying the step-by-step procedure towards integrated impact assessments of electricity, potable water and road networks and their interdependencies.
Highlights
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
This study primarily focused on infrastructure networks of the Wellington region in Aotearoa New Zealand
The authors have presented an integrated methodology to illustrate the applicability of the framework
Summary
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. At present, there is no structured framework to link different models together and there is a need to understand what is needed in the flow from one model to the to facilitate integrated impact assessment of infrastructure networks [7]. A linkage framework for integrated impact assessment of infrastructure networks is proposed through five modules to link different models and their important components, features, data standards, parameters, and structures.
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