Abstract
Over the past few years, the European Commission has placed Critical Infrastructure Protection under the spotlight. Therefore, the Joint Research Centre is developing a tool to estimate the economic impact of Critical Infrastructure (CI) network failure, resulting from a hazard, on the regional or national level. This tool, which is presented in this study, is a combined Systems Engineering and Dynamic Inoperability Input–output model (SE-DIIM). The resilience of infrastructures and economic sectors, in terms of their ability to withstand and recover from disruptions, is included in the model. We discuss the model by analyzing the economic losses incurred in the 2003 Italian electricity network outage. The losses are estimated at both national and regional levels i.e. northern, central and southern parts of Italy and Sicily with a focus on 9 CI’s. We estimate that the economic loss for the case study under consideration is between €46 million and €173 million. We conclude that the combination of the SE and the DIIM components provides a complete framework for assessing the economic impact of critical infrastructure network failure on the national or regional level taking account of resilience.
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Notes
More details on the Directive can be found in http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2008:345:0075:0082:EN:PDF
The challenge in improving the recovery speed of an infrastructure after a disaster is to maximize infrastructure performance within budgetary restrictions. This is actually a study in itself, as addressed by Matisziw et al. (2010).
So where the SE component analyses failure and recovery within an infrastructure network in the present study, the DIIM component models the interaction between infrastructures.
WIOD actually considers 35 economic sectors but because we close the model with respect to both the household and the government sector, there are 37 sectors in total.
The perturbation in the electricity sector (p elec = 1) is transformed into a perturbation for the aggregated ‘electricity, gas and water supply’ sector as considered in the national Input–output tables from the WIOD on the basis of Structural Business Statistics data from Eurostat. This data source tells us that in Italy the proportion of the production value of the electricity sector is 77,6 % of the production value of the aggregated sector ‘electricity, gas and water supply’.
Full recovery is set equal to p i (T i ) = 0,01 because one cannot divide by zero in Eq. 7.
In our study. this is similar to assuming that inoperability in all industrial sectors, the household sector and the government sector is equal to 1 during the failure period.
Inventories or network redundancies for example.
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Acknowledgments
We would like to thank two anonymous referees for their valuable comments. This work is supported by the Annual Work Programme 2010 and Annual Work Programme 2011 for the specific programme on the “Prevention and fight against crime” which is financed by Directorate General Home Affairs of the European Commission. The authors would like to express their gratitude for this support.
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Jonkeren, O., Azzini, I., Galbusera, L. et al. Analysis of Critical Infrastructure Network Failure in the European Union: A Combined Systems Engineering and Economic Model. Netw Spat Econ 15, 253–270 (2015). https://doi.org/10.1007/s11067-014-9259-1
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DOI: https://doi.org/10.1007/s11067-014-9259-1