Worker fatigue rears its ugly head in a multitude of asset intensive industries, often with serious ramifications. Fatigue causes lowered alertness. This leads to slowed reaction times, reduced vigilance, poor decision making, and lack of communication. In extreme cases, this may contribute to catastrophic incidents. Unless individuals actually fall asleep, the incident is normally a combination of faulty decision making within a critical situation. Research by Professor David Dinges at the University of Pennsylvania showed that fatigue contributes between 30 and 90 percent of all serious incidents across industries.

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