A Model for Vulnerability Analysis of Interdependent Infrastructure Networks

Johansson, JonasLund University,Lunds universitet,Lunds universitets centrum för riskanalys och riskhantering (LUCRAM),Annan verksamhet, LTH,Lunds Tekniska Högskola,Industriell elektroteknik och automation,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lund University Centre for Risk Assessment and Management (LUCRAM),Other operations, LTH,Faculty of Engineering, LTH,Industrial Electrical Engineering and Automation,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH (author)

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.

Hassel, HenrikLund University,Lunds universitet,Lunds universitets centrum för riskanalys och riskhantering (LUCRAM),Annan verksamhet, LTH,Lunds Tekniska Högskola,Avdelningen för Brandteknik,Institutionen för bygg- och miljöteknologi,Institutioner vid LTH,Avdelningen för Riskhantering och Samhällssäkerhet,Lund University Centre for Risk Assessment and Management (LUCRAM),Other operations, LTH,Faculty of Engineering, LTH,Division of Fire Safety Engineering,Department of Building and Environmental Technology,Departments at LTH,Faculty of Engineering, LTH,Division of Risk Management and Societal Safety,Faculty of Engineering, LTH(Swepub:lu)bran-hjo (author)
Lunds universitets centrum för riskanalys och riskhantering (LUCRAM)Annan verksamhet, LTH (creator_code:org_t)

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SOCIAL SCIENCES: SOCIAL SCIENCES; and Other Social Sci ...; and Social Sciences ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Civil Engineerin ...; and Other Civil Engi ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Other Electrical ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Civil Engineerin ...; and Building Technol ...

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