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http://dx.doi.org/10.1016/j.net.2021.12.025

Empirical estimation of human error probabilities based on the complexity of proceduralized tasks in an analog environment  

Park, Jinkyun (Korea Atomic Energy Research Institute (KAERI))
Kim, Hee Eun (Korea Atomic Energy Research Institute (KAERI))
Jang, Inseok (Korea Atomic Energy Research Institute (KAERI))
Publication Information
Nuclear Engineering and Technology / v.54, no.6, 2022 , pp. 2037-2047 More about this Journal
Abstract
The contribution of degraded human performance (e.g., human errors) is significant for the safety of diverse social-technical systems. Therefore, it is crucial to understand when and why the performance of human operators could be degraded. In this study, the occurrence probability of human errors was empirically estimated based on the complexity of proceduralized tasks. To this end, Logistic regression analysis was conducted to correlate TACOM (Task Complexity) scores with human errors collected from the full-scope training simulator of nuclear power plants equipped with analog devices (analog environment). As a result, it was observed that the occurrence probability of both errors of commission and errors of omission can be soundly estimated by TACOM scores. Since the effect of diverse performance influencing factors on the occurrence probabilities of human errors could be soundly distinguished by TACOM scores, it is also expected that TACOM scores can be used as a tool to explain when and why the performance of human operators starts to be degraded.
Keywords
Task complexity; Nuclear power plant; Analog environment; Proceduralized task; Error of omission; Error of commission; Logistic regression;
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Times Cited By KSCI : 5  (Citation Analysis)
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