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This study advocates establishing an indicator system for Critical Infrastructures (CIs) resilience assessment to ensure consistency and comparability in future endeavors. Resilience has emerged as a fundamental framework for effectively managing the performance of CIs in response to the challenges posed by disaster events. However, it is evident that a lack of uniformity exists in the choice and standardization of resilience assessment frameworks across the identified frameworks. This paper proposes key attributes for facilitating resilience assessment of the CIs using an in-depth literature survey for identification and two rounds of the Delphi survey in Sri Lankan Context for their verification. The outcome of the literature survey has analyzed the resilience assessment attributes under five types of capacities of resilience assessment: planning (anticipative), absorptive, restorative, and adaptive. Twenty-seven resilience attributes (Planning: 6; Absorptive: 12; Restorative: 6; Adaptive: 3) under different capacities were identified, including sub-indicators for evaluating each resilience attribute. The outcomes of the Delphi survey were analyzed through descriptive statistics. The proposed attributes received high levels of agreement from the experts, indicating their suitability and applicability for assessing the resilience of the CIs. The mean ratings of the attributes varied from 4.0 to 5.0, with the majority exceeding 4.5. The evaluation of these attributes will be useful for assessing the resilience capacity of the CIs and thereby to model the overall resilience of the CIs. The results of this study will provide a solid basis for formulating hypotheses in future research aimed at assessing CI resilience.
Rathnayaka et al. (Sat,) studied this question.