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The Application of the Enhanced Bayesian THERP in the HRA Methods Empirical Study Using Simulator Data
VTT, Technical Research Centre of Finland, Espoo, Finland.
2008 (English)In: Proc. of PSAM 9 — International Conference on Probabilistic Safety Assessment & Management, 18–23 May 2008, Hong Kong, China, IAPSAM — International Association of Probabilistic Safety Assessment and Management, 2008Conference paper, Published paper (Other academic)
Abstract [en]

PSAM 9. International Conference on Probabilistic Safety Assessment & Management. Hong Kong, China, 18 - 23 May 2008. Paper 0180 The enhanced Bayesian THERP (Technique for Human Reliability Analysis) method is based on the use of the time-reliability curve introduced in the Swain's human reliability analysis (HRA) handbook and on adjustment of the time-dependent human error probabilities with five performance shaping factors (PSFs): (1) support from procedures, (2) support from training, (3) feedback from process, (4) need for co-ordination and communication, (5) mental load, decision burden. In the enhanced Bayesian THERP, the PSFs are elicited by expert judgments, which are then aggregated in a Bayesian manner. This approach has been successfully used in real PSA-studies, where the plant operators have been the experts assessing the levels of the PSFs. The method has proven to be a systematic way to qualitatively and quantitatively analyze operator actions. This paper presents the application of the enhanced Bayesian THERP in an international study "HRA Methods Empirical Study Using Simulator Data." The enhanced Bayesian THERP (Technique for Human Reliability Analysis) method is based on the use of the time-reliability curve introduced in the Swain's human reliability analysis (HRA) handbook and on adjustment of the time-dependent human error probabilities with five performance shaping factors (PSFs): (1) support from procedures, (2) support from training, (3) feedback from process, (4) need for co-ordination and communication, (5) mental load, decision burden. In the enhanced Bayesian THERP, the PSFs are elicited by expert judgments, which are then aggregated in a Bayesian manner. This approach has been successfully used in real PSA-studies, where the plant operators have been the experts assessing the levels of the PSFs. The method has proven to be a systematic way to qualitatively and quantitatively analyze operator actions. This paper presents the application of the enhanced Bayesian THERP in an international study "HRA Methods Empirical Study Using Simulator Data

Place, publisher, year, edition, pages
2008.
National Category
Philosophy
Identifiers
URN: urn:nbn:se:kth:diva-90778OAI: oai:DiVA.org:kth-90778DiVA: diva2:506533
Conference
PSAM 9 — International Conference on Probabilistic Safety Assessment & Management, IAPSAM — International Association of Probabilistic Safety Assessment and Management. Hong Kong, China. 18–23 May 2008
Note
QC 20120508Available from: 2012-02-28 Created: 2012-02-28 Last updated: 2012-05-08Bibliographically approved

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CiteExportLink to record
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