There is an element of uncertainty in every complicated engineering endeavor. "In July 2003, in the Pacific, a Japanese fishing boat was sunk by a flying cow," Robert Bea told me. Bea is a professor of civil and environmental engineering at the University of California, Berkeley, and a leading scholar of risk; he also spent many years working in research and management at Shell. The cow, it turned out, was part of an illegal cattle shipment bound from Anchorage to Russia; as the plane approached its destination the smugglers became nervous about their cargo and began shoving it out of the plane. "No risk analysis can ever be complete. No one can predict a flying cow."
The story may be comical, but the insight and importance is deadly serious. The seriousness is increasingly an issue for engineers - - from climate change uncertainty to terrorism risks to energy disruptions - - our flying cow moments should be of concern. If you cannot model or predict with any level of certainty our flying cow events - - then what?
The issue becomes one of resilience - - where resilience is defined as the ability to bounce or spring back into shape, position, etc. after being pressed or stretched. The fundamental concept is the linkage between resilience and the ability to recover after a physical stress. You cannot predict the flying cow taking down your pump station. The issue then becomes your organizational abilities to adapt and the speed with which you can get the pump station back online.
Think in terms of the Four R's presented below - -
- Robustness - - the inherent strength or resistance in a system to withstand external demands without degradation or loss of functionality.
- Redundancy - - system properties that allow for alternative options, choices, and substitutions under stress.
- Resourcefulness - - the capacity to mobilize needed resources and services in emergencies.
- Rapidity - - the speed with which disruption can be overcome and safety, services, and financial stability restored.
Are you prepared for the next flying cow?
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