Jonas Johansson
Universitetslektor
An Approach for Modelling Interdependent Infrastructures in the Context of Vulnerability Analysis
Författare
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.
Avdelning/ar
- Lund University Centre for Risk Assessment and Management (LUCRAM)
- Industriell elektroteknik och automation
- Avdelningen för Brandteknik
- Avdelningen för Riskhantering och Samhällssäkerhet
Publiceringsår
2010
Språk
Engelska
Sidor
1335-1344
Publikation/Tidskrift/Serie
Reliability Engineering & System Safety
Volym
95
Issue
12
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Building Technologies
- Other Electrical Engineering, Electronic Engineering, Information Engineering
- Social Sciences Interdisciplinary
- Other Civil Engineering
Nyckelord
- Interdependencies
- Critical infrastructures
- Vulnerability analysis
- Modelling
- Networks
Status
Published
Projekt
- FRIVA
Forskningsgrupp
- LUCRAM (Lund University Center for Risk Analysis and Management
ISBN/ISSN/Övrigt
- ISSN: 0951-8320