Fatigue is a safety risk in aviation because of performance deficits in flight crews that have been shown to be correlated with fatigue. At FedEx, owing to the around-the-clock and across-time-zones nature of its operations, the development of a science-based system for tracking and managing fatigue risk will be critical for safe operations and operational flexibility going forward. To improve upon proactively implemented fatigue-friendly scheduling policies, FedEx is developing science-based rostering and scheduling software to further minimize fatigue and enhance alertness in operations. This paper outlines the development process for this software and discusses how that software model will integrate into FedEx's operational processes. Once validated and implemented, the software model is likely to improve both scheduling performance and increase flight safety.
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