Human reliability analysis in de-energization of power line using HEART in the context of Z-numbers

Abstract

Investigation reveals that a high percentage of incident causes are ascribed to some forms of human error. To effectively prevent incidents from happening, Human Reliability Analysis (HRA), as a structured way to represent unintentional operator contribution to system reliability, is a critical issue. Human Error Reduction and Assessment Technique (HEART) as a famous HRA technique, provides a straightforward method to estimate probabilities of human error based on the analysis of tasks. However, it faces varying levels of uncertainty in assigning of weights to each error producing condition (EPC), denoted as assessed proportion of affect (APOA), by experts. To overcome this limitation and consider the confidence level (reliability or credibility) of the experts, the current study aimed at proposing a composite HEART methodology for human error probability (HEP) assessment, which integrates HEART and Z-numbers short for, Z-HEART. The applicability and effectiveness of the Z-HEART has been illustrated in the de-energization power line as a case study. Furthermore, a sensitivity analysis is fulfilled to investigate the validity of the proposed methodology. It can be concluded that Z-HEART is feasible for assessing human error, and despite the methodological contributions, it offers many advantages for electricity distribution companies.

Human Error Probability Determination in Blasting Process of Ore Mine Using a Hybrid of HEART and Best-Worst Methods

“…The GEP is used to determination of the GTT. For each GEP value, a qualitative description is provided, as shown in Table 1 [ 9 ]. The EPCs indicate the Performance Shaping Factors (PSF) that may influence the HEP, presented in Table 2 [ 9 ].…”

“…For each GEP value, a qualitative description is provided, as shown in Table 1 [ 9 ]. The EPCs indicate the Performance Shaping Factors (PSF) that may influence the HEP, presented in Table 2 [ 9 ]. EPC can be any condition that negatively affects performance.…”

“…Human Reliability Analysis (HRA) [ 9 ] is the primary approach to prevent and reduce human error [ 9 ]. The HRA has three main steps: recognizing fundamental operations, analyzing relevant tasks, and determining human error probability (HEP) [ 10 ].…”

“…Experts were also ranked based on education, experience, and job position. This study could overcome the disadvantages of traditional HEART but needed many inputs and calculations [ 9 ]. However, it is still necessary to provide a fast and user-friendly method that requires few inputs.…”

A comprehensive method for the quantification of medication error probability based on fuzzy SLIM

“…Accordingly, Fuzzy logic has found many applications in HRA. For example, techniques such as CREAM, HEART, and SHERPA have been equipped with Fuzzy logic in different ways to reduce subjectivity and enhance the reliability of results [27][28][29][30]. Consequently, it seems rational, useful, and even necessary to employ Fuzzy logic in developing any new HRA technique.…”