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An Interface for Enhancing Repeatability in Human Reliability Analysis

Volume 9, Number 2, March 2013 - Paper 3 -  pp. 149-161

P. BARALDI1, A. SOGARO2, M. KONSTANDINIDOU3, and Z. NIVOLIANITOU3

1 Energy Department, Politecnico di Milano, Milan, Italy
2 Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Milan, Italy
3 National Center for Scientific Research "DEMOKRITOS", Athens, Greece

(Received on February 15, 2012, revised on December 04, 2012, and January 14, 2013)

Abstract:

In Human Reliability Analysis (HRA) methods, the estimation of Human Error Probabilities (HEPs) usually requires the assessment of the Performance Shaping Factors (PSFs) characterizing the given contextual scenario in which the tasks are performed. The objective of this work is to develop a visual interface to help the safety analysts in the PSFs assessment. Aiming at the increased repeatability of the PSFs assessment, the proposed methodology is based on the use of anchor points that represent prototype conditions of the PSFs. Furthermore, a detailed description of the anchor points in terms of sub-items characterizing the PSFs is adopted to facilitate the assessment and make the whole process more transparent. The interface is proposed with respect to a developed tool for the estimation of Human Error Probabilities (HEPs) and based on the combination of the Cognitive Reliability And Error Analysis Method (CREAM) with fuzzy logic principles.

 

References: 15

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