Evaluating the Resilience of Critical Infrastructures Assessing Interdependencies and Economic Impact: The Role of Inventories

The input-output approach proposed by Wassily Leontief is regarded as a key tool for the quantitative analysis of the interdependencies between different interconnected sectors within an economy, especially in today's highly interactive networks of producers/service providers. In recent years, Leontief's model was also extended in order to assess its resilience to critical events, such as a disruption affecting some sectors and propagating through others according to their vulnerability, reaction times and centrality to the overall economy. In this context, a key factor towards the mitigation of monetary losses is represented by preparedness which, to a large extent, is associated with: (1) the availability of inventories; and (2) the ability to ensure extended continuity of product/service delivery in spite of the temporary, partial, or complete inoperability of some sectors. In this paper - building on an approach based on the dynamic inoperability input-output model with inventory (originally proposed in Barker and Santos 2010) - the authors formulate an optimization problem and propose an algorithm to determine how a proper sizing of each sector's cumulative inventory level can enhance the overall resilience to selected critical events.

• Record URL:
  • https://doi.org/10.1061/9780784413609.071
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784413609
• Supplemental Notes:
  • © 2014 American Society of Civil Engineers
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Galbusera, Luca
  • Azzini, Ivano
  • Jonkeren, Olaf
  • Ntalampiras, Stavros
  • Giannopoulos, Georgios
• Conference:
  • Second International Conference on Vulnerability and Risk Analysis and Management (ICVRAM) and the Sixth International Symposium on Uncertainty, Modeling, and Analysis (ISUMA)
  • Location: Liverpool , United Kingdom
  • Date: 2014-7-13 to 2014-7-16
• Publication Date: 2014

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 695-703
• Monograph Title: Vulnerability, Uncertainty, and Risk: Quantification, Mitigation, and Management

Subject/Index Terms

• TRT Terms: Algorithms; Disaster preparedness; Economic impacts; Infrastructure; Input output models; Inventory; Optimization; Risk management; Service disruption
• Uncontrolled Terms: Critical infrastructure; Disruptions; Interdependencies; Resilience (Adaptability)
• Subject Areas: Economics; Planning and Forecasting; Security and Emergencies; Transportation (General); I10: Economics and Administration; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01532743
• Record Type: Publication
• ISBN: 9780784413609
• Files: TRIS, ASCE
• Created Date: Aug 4 2014 6:46PM