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Critical infrastructure interdependency modelling, a comparison of approaches used by CIPMA, SMART and GNS Science

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    Buxton, R. 2013 Critical infrastructure interdependency modelling, a comparison of approaches used by CIPMA, SMART and GNS Science. Lower Hutt, N.Z.: GNS Science. GNS Science report 2013/36 20 p.

    Abstract: The failure of infrastructure supply networks such as electricity, water, and telecommunications can have a large impact on the affected areas of society which, since the industrial revolution have become increasingly dependent on the presence of utilities. There have been many examples in recent years where damage to infrastructure has caused massive disruption over large areas. These examples include natural disasters where the initiating event is an earthquake, hurricane, volcano etc. and events that are man-made including acts of terrorism such as 9/11. GNS Science has been considering the modelling of interdependencies between different critical infrastructure network systems since 2010. The Critical Infrastructure Protection Modelling and Analysis (CIPMA) group within the Australian Attorney-General’s Department has been working in this area since 2007. A third group, the SMART research group based at the University of Wollongong, researches the effects of critical infrastructure failure, including some work on interdependencies. In 2013 the New Zealand Treasury Department organised a trip for a small delegation of modellers to Canberra to visit the CIPMA facility and share ideas with CIPMA and SMART representatives on critical infrastructure and modelling. Two GNS Science-based research projects were represented at the meetings, the Post Earthquakes Cities (PEC) Interdependencies project and the Economics of Resilient Infrastructure (ERI) project. This report does not aim to be a comprehensive account of the interdependency modelling undertaken at GNS Science since it is intended that this be covered in separate more focused reports by the author (Buxton, in preparation 2013) and others, however, it is meant to provide a useful comparison of the differences in the approaches but also to highlight important common problems that need further study in order to be addressed. (auth)

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