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Operational models of infrastructure resilience
David L Alderson1, Gerald G Brown1, W Matthew Carlyle1
1Operations Research Department, Naval Postgraduate School, Monterey, CA, USA.
Summary
We introduce a new definition for infrastructure resilience, focusing on operational function and using quantitative models for objective evaluation. This approach aids in assessing system vulnerabilities and guiding policy for enhanced resilience.
Area of Science:
- Systems Engineering
- Infrastructure Management
- Resilience Science
Background:
- Traditional infrastructure resilience definitions lack objective evaluation methods.
- Understanding system dynamics under disruption is crucial for maintaining function.
Purpose of the Study:
- To propose a quantifiable definition of infrastructure resilience.
- To develop a modeling framework for assessing operational resilience.
Main Methods:
- Quantitative modeling of system operation and operator decision-making.
- Simulation of component loss and its impact on system function.
Main Results:
- A precise definition of "operational resilience" is established.
- The model allows systematic evaluation of consequences from component loss.
- Identification of critical vulnerabilities and effective investment strategies.
Conclusions:
- The proposed definition and modeling approach enable objective assessment of infrastructure resilience.
- This framework supports informed decision-making for policymakers to improve infrastructure robustness.
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