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A Model for Vulnerability Analysis of Interdependent Infrastructure Networks

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Author

Summary, in English

Technical infrastructures of the society are becoming more and more interconnected and interdependent, i.e. the function of an infrastructure influences the function of other infrastructures. Disturbances in one infrastructure therefore often traverse to other dependent infrastructures and possibly even back to the infrastructure where the failure originated. It is becoming increasingly important to take these interdependencies into account when assessing the vulnerability of technical infrastructures. In the present paper, an approach for modelling interdependent technical infrastructures is proposed. The modelling approach considers structural properties, as employed in graph theory, as well as functional properties to increase its fidelity and usefulness. By modelling a fictional electrified railway network that consists of five systems and interdependencies between the systems, it is shown how the model can be employed in a vulnerability analysis. The model aims to capture both functional and geographic interdependencies. It is concluded that the proposed modelling approach is promising and suitable in the context of vulnerability analyses of interdependent systems.

Publishing year

2008

Language

English

Publication/Series

[Host publication title missing]

Document type

Conference paper

Topic

  • Social Sciences Interdisciplinary
  • Other Civil Engineering
  • Other Electrical Engineering, Electronic Engineering, Information Engineering
  • Building Technologies

Keywords

  • Vulnerability analysis
  • Critical infrastructures
  • Interdependencies
  • Modelling
  • Networks

Conference name

European Safety and Reliability Conference (ESREL)/17th Annual Meeting of the Society-for-Risk-Analysis-Europe (SRA-Europe)

Conference date

2008-09-22 - 2008-09-25

Status

Published

Research group

  • LUCRAM (Lund University Center for Risk Analysis and Management