Inclusion of fatigue effects in human reliability analysis

Inclusion of fatigue effects in human reliability analysis

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Article ID: iaor20119158
Volume: 96
Issue: 11
Start Page Number: 1437
End Page Number: 1447
Publication Date: Nov 2011
Journal: Reliability Engineering and System Safety
Authors: ,
Keywords: quality & reliability, engineering, risk
Abstract:

The effect of fatigue on human performance has been observed to be an important factor in many industrial accidents. However, defining and measuring fatigue is not easily accomplished. This creates difficulties in including fatigue effects in probabilistic risk assessments (PRA) of complex engineering systems that seek to include human reliability analysis (HRA). Thus the objectives of this paper are to discuss (1) the importance of the effects of fatigue on performance, (2) the difficulties associated with defining and measuring fatigue, (3) the current status of inclusion of fatigue in HRA methods, and (4) the future directions and challenges for the inclusion of fatigue, specifically sleep deprivation, in HRA.

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