A statistical approach to estimating effects of performance shaping factors on human error probabilities of soft controls

Kim, Yochan; Park, Jinkyun; Jung, Woo‐Sik; Jang, Inseok; Seong, Poong Hyun

doi:10.1016/j.ress.2015.06.004

Cited by 47 publications

(11 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Three of the studies were performed on modern ACR simulators [Park et al 2017;Kim et al 2015;Kim et al 2018], one used a system and HSI simulated on computers [Xu et al 2008], one comparative study was carried out on analogue simulator and tablet computers [Massaiu and Fernandes 2017] and one relied on operational experience from Korean NPPs including both analogue and digital MCRs [Ham and Park 2018]. Two of the studies used university students, whereas licensed operators were used in the other ones.…”

Section: Test Settingsmentioning

confidence: 99%

Effects of digitalization of nuclear power plant control rooms on human reliability analysis – A review

Porthin

Liinasuo

Kling

2020

Reliability Engineering & System Safety

View full text Add to dashboard Cite

The changes in the operating conditions of the main control room of nuclear power plants due to new digitalized human-system interfaces (HSIs) pose challenges to traditional human reliability analysis (HRA) methods. This paper reviews current knowledge about the effect of digital HSI on human behaviour and reliability, relevant performance shaping factor (PSF) taxonomies as well as research on the effect of PSFs on human error probability estimates in advanced control rooms (ACRs). It cannot be generally concluded that either analogue or digitalized control rooms would be always better than the other. ACRs have the potential to offer error reducing and supportive features to the user, but may also introduce increased complexity and interface management tasks as well as potentially error-prone team working practices. Some effects seem universal, but most depend on the specific design. The main PSF categories presented in HRA methods and international guidelines seem still relevant in ACRs. Quantitative empirical studies show that especially training and experience, availability and quality of procedures as well as task type or complexity are important factors. However, digitalization changes the way in which the PSFs should be defined and measured, and the effects of PSFs on the error estimates may be different.

show abstract

Section: Test Settingsmentioning

confidence: 99%

Effects of digitalization of nuclear power plant control rooms on human reliability analysis – A review

Porthin

Liinasuo

Kling

2020

Reliability Engineering & System Safety

View full text Add to dashboard Cite

show abstract

“…In summary, HFM allows specialists to identify and characterize PSFs and convert them to a numeric scale for use in the HRA method. [9], [31], [42], [48]. Reliability engineers have set HEP nominal values [49] and consider PSFs as multipliers greater or smaller than one if the effect is detrimental or positive, respectively [44], [50]- [52].…”

Section: A Human Reliability Contextmentioning

confidence: 99%

The Effect of Psychotropic Drugs as a Performance Influencing Factor on Human Reliability Assessment

et al. 2020

View full text Add to dashboard Cite

The increasing use/abuse of psychotropic drugs is an alarming social phenomenon with repercusions in many areas, especially in reliability engineering. The aim of this paper is to present a method developed by a multidisciplinary team composed of ergonomists, psychiatrists, information technologists, and reliability engineers to quantitatively consider the impact of psychotropic drugs on the assessment of human reliability of Operation and Maintenance (O&M) personnel of a hydroelectric plant. To achieve the proposed objective, the first step was the identification of drugs that affect the psychic-cognitive/sensory and motor functions as a side effect and the frequency (probability of occurrence) of the effect. This was done mining public and private drug databases. A qualitative (symbolic) scale later translated into numerical values was used to quantify the impact of each drug on the affected functions. At the same time, O&M tasks were broken down into observable activity sequences, recording the frequency of each activity on each task (Task Analysis). Then, the relationship between each activity and the sensory-cognitive-motor psychic functions was established, based on the knowledge and experience of the team involved. Again a qualitative (symbolic) scale was defined and later transformed into a numerical scale. As a result, the first version of a drug effect-task knowledge database (KDB) was built with the symbolic and numerical values assigned to all relationships between the different model elements. Although the KDB needs to be systematically reviewed and updated by a broader network of ergonomists and psychiatrists, it has served as proof of concept and a starting point for the development of a human risk management tool for hydroelectric power plants. The last step was to calculate a new Performance Shaping Factor (PSF) due to Psychotropic Drugs Use (PDU), for each drug in each of the O&M tasks. In a preliminary assessment of the inclusion of PDU-PSF with three common methods of Human Reliability Assessment (HRA), we found an increased risk of human failure ranging from approximately 15% to 35%, depending on the HRA method. The case study used to illustrate the method considered a routine operator inspection task using an antidepressant drug. The proposed method can be updated for new drugs and can be refined/customized for other high-risk human activities such as oil and gas and petrochemical industries, nuclear power plants, aviation, and surgery, among others. INDEX TERMS Human error analysis, reliability, task analysis, psychotropic drugs, human reliability.

show abstract

“…The difficulty of obtaining data from event report is that these usually only report when an error occurs. It is difficult to know if some particular PSFs/EFCs, such as complexity, are present when the error occurred compared to normal operations [8,40]. A particular challenge in analyzing complexity in event reports is that the event reports are usually not very detailed and it is very difficult to understand which subcomponents of complexity are involved.…”

Section: Difficulties In Obtaining Empirical Data On Complexity Frommentioning

confidence: 99%

Challenge to Collect Empirical Data for Human Reliability Analysis—Illustrated by the Difficulties in Collecting Empirical Data on the Performance-Shaping Factor Complexity

Laumann

Skogstad

2019

ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part B: Mechanical Engineering

View full text Add to dashboard Cite

This paper discusses the challenges with collecting positivistic empirical data (objective, observable, reliable, replicable, experimental, and true) in human reliability analysis (HRA), and illustrates it by presenting the difficulties in collecting empirical data on the performance-shaping factor (PSF) complexity. The PSF complexity was chosen to illustrate the difficulties with empirically collecting data because it is included in many HRA guidelines and it has been discussed as an important PSF to understand error rates in large accident scenarios. This paper discusses the challenges with collecting empirical data from a pure positivistic paradigm with experiments, as well as from literature reviews and data from event reports, training, and operations. The paper concludes that because of all the challenges with the positivistic empirical data collections methods in HRA, we should discuss whether experts' judgements could be a better approach to obtain HRA data and error rates. In a postpositivistic view, qualitative data or experts' judgments could also be looked at as empirical data if the data were collected in a systematic and transparent way.

show abstract

A statistical approach to estimating effects of performance shaping factors on human error probabilities of soft controls

Cited by 47 publications

References 38 publications

Effects of digitalization of nuclear power plant control rooms on human reliability analysis – A review

Effects of digitalization of nuclear power plant control rooms on human reliability analysis – A review

The Effect of Psychotropic Drugs as a Performance Influencing Factor on Human Reliability Assessment

Challenge to Collect Empirical Data for Human Reliability Analysis—Illustrated by the Difficulties in Collecting Empirical Data on the Performance-Shaping Factor Complexity

Contact Info

Product

Resources

About