Resilient systems are those which are designed to operate such that the entire system is equipped to respond effectively and recover quickly from disruptive events. In this setting, a system is broadly defined as a collection of interacting stakeholders, infrastructures, operations, and tasks that collectively form a complex whole. Examples of systems we work on include, supply chains, transportation, manufacturing, energy, and healthcare infrastructures. Resiliency in systems can be achieved by making effective decisions in designing for and preparing, responding, and recovering from natural or man-made disruptive events. Effective decision making in these stages require the consideration of multiple issues including (but not limited to):
- How to detect events that will eventually lead to a significant disruption;
- Analyzing the trade-off between vulnerability and risk reduction to costs involved;
- Understanding and managing the interaction and potentially conflicting objectives of multiple stake-holders;
- Allocation of limited resources under constrained settings; etc.
We use a variety of operations research and industrial engineering tools along with interdisciplinary collaborations to address problems in designing and managing resilient systems.