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Risk and Vulnerability Analysis of Critical Infrastructures

In: Risk and Interdependencies in Critical Infrastructures

Author

Listed:
  • Per Hokstad

    (SINTEF Safety Research)

  • Ingrid Bouwer Utne

    (NTNU)

  • Jørn Vatn

    (Norwegian University of Science and Technology)

Abstract

This chapter presents an approach for a cross-sector risk and vulnerability analysis (RVA) of critical infrastructures. The RVA is an extended version of a preliminary hazard analysis (PHA) and can be applied to any complex system with only minor adaptations. The analysis has three phases described below: (1) analysis preparation, (2) preliminary risk analysis and (3) detailed risk analyses. The objective of the RVA is to identify hazardous events related to the activity/system as thorough as reasonably practicable. In phase 2, risk is assessed by the analysis group from direct assessments of probabilities and consequences on a semi-quantitative scale, such as low (L), medium (M) and high (H). This is in line with a standard PHA, which aims to identify and assess all major risks, and provide risk-reducing measures, without including detailed risk calculations or analyses. The preliminary risk analysis is then used for screening, and the most critical events are investigated further for various detailed analyses and quantifications. The RVA described here intends to give a complete overview of all risks elements related to the systems under investigation.

Suggested Citation

  • Per Hokstad & Ingrid Bouwer Utne & Jørn Vatn, 2012. "Risk and Vulnerability Analysis of Critical Infrastructures," Springer Series in Reliability Engineering, in: Per Hokstad & Ingrid B. Utne & Jørn Vatn (ed.), Risk and Interdependencies in Critical Infrastructures, edition 127, chapter 0, pages 23-33, Springer.
    • Handle: RePEc:spr:ssrchp:978-1-4471-4661-2_3
    DOI: 10.1007/978-1-4471-4661-2_3
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    Cited by:

    1. Sarah LaRocca & Jonas Johansson & Henrik Hassel & Seth Guikema, 2015. "Topological Performance Measures as Surrogates for Physical Flow Models for Risk and Vulnerability Analysis for Electric Power Systems," Risk Analysis, John Wiley & Sons, vol. 35(4), pages 608-623, April.

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