A Mathematical Approach for Evaluating the Experience and Training Factor Using the Forgetting Curve in Human Reliability Analysis
Traditional human reliability analysis (HRA) methodologies have difficulty dealing with the dynamic nature of factors such as time and rely on static and expert judgment-based assessments of performance shaping factor (PSF) for limited levels. In this study, we introduce a mathematical approach to dynamically evaluate PSFs related to experience and training. The proposed method integrates […]
A Mathematical Approach for Evaluating the Experience and Training Factor Using the Forgetting Curve in Human Reliability Analysis
Traditional human reliability analysis (HRA) methodologies have difficulty dealing with the dynamic nature of factors such as time and rely on static and expert judgment-based assessments of performance shaping factor (PSF) for limited levels. In this study, we introduce a mathematical approach to dynamically evaluate PSFs related to experience and training. The proposed method integrates […]
Simulator Data Analysis to Inform Digitalized Environment Impacts on Human Reliability
The U.S. Nuclear Regulatory Commission (NRC) has developed a human reliability analysis (HRA) method, termed the Integrated Human Event Analysis System for Event and Condition Assessment (IDHEAS-ECA), in order to estimate human error probabilities (HEPs) in risk-informed regulatory applications. To update the quantification part of IDHEAS-ECA, the NRC required human performance and error data from […]
An Approach to Dynamic Human Reliability Analysis and Its Data Collection Framework
Human reliability analysis (HRA) is a method for evaluating human errors in a variety of complex systems such as nuclear power plants, military systems, aircraft, and chemical plants. Most HRA methods currently used by regulatory institutes or utilities are called static HRA and are carried out by simple worksheets or simple calculators. To date, there […]
Qualitative and Quantitative Evaluation for Representative Human Reliability Analysis Methods
The Korea Institute of Nuclear Safety (KINS) is the regulatory expert organization established by the Korean government to strengthen the nation’s technical capabilities relating to nuclear safety regulation. KINS oversees the technical aspects of nuclear safety regulation, including safety reviews, inspections, education, and safety research—all conducted based on technical knowledge and accumulated regulatory experience. In […]
Use of Time Distributions to Predict Operator Procedure Performance in Dynamic Human Reliability Analysis
The Human Unimodel for Nuclear Technology to Enhance Reliability (HUNTER) framework affords software capable of conducting human reliability analysis (HRA) using a dynamic approach built around operating procedures (OPs) from nuclear power plants (NPPs). Previous HUNTER reports document the development of this software tool, the coupling of HUNTER to the simulator code, the collection of […]
An Approach to Dynamic Human Reliability Analysis and Its Data Collection Framework
Human reliability analysis (HRA) is a method for evaluating human errors in a variety of complex systems such as nuclear power plants, military systems, aircraft, and chemical plants. Most HRA methods currently used by regulatory institutes or utilities are called static HRA and are carried out by simple worksheets or simple calculators. To date, there […]
An Approach to Dynamic Human Reliability Analysis Using the EMRALD Dynamic Risk Assessment Tool
There is a need for research into dynamic human reliability analysis (HRA) (i.e., simulation- or computation-based HRA), as many researchers have emphasized the importance of applying dynamic approaches to probabilistic safety assessments (PSAs). This study proposes the Procedure-based Investigation Method of EMRALD Risk Assessment – Human Reliability Analysis (PRIMERA-HRA), a dynamic HRA approach based on […]
Analysis of Human Error and Performance in Correlation with Simulator Complexity
To date, many efforts utilizing actual historical measurements, expert judgment, and simulator experiment research have been conducted to secure sufficient data for performing human reliability analysis (HRA). These days, experiment research based on full-scope simulators with actual expert operators is considered the leading method of HRA data collection. These full scope empirical studies are favorable […]
An Investigation of Time Distributions for Task Primitives to Support the HUNTER Dynamic Human Reliability Analysis
As an effort to support data collection for dynamic human reliability analysis (HRA), this study investigates time distributions for task primitives defined in the Goals, Operators, Methods, and Selection rules (GOMS)–Human Reliability Analysis (HRA) method. GOMS-HRA was developed to provide cognition-based time and human error probability information for dynamic HRA calculation in the Human Unimodel […]