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The effect of two complexity factors on the performance of emergency tasks—An experimental verification

Author

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  • Park, Jinkyun
  • Jung, Wondea
  • Jung, Kwangtae

Abstract

It is well known that the use of procedures is very important in securing the safety of process systems, since good procedures effectively guide human operators by providing ‘what should be done’ and ‘how to do it’, especially under stressful conditions. At the same time, it has been emphasized that the use of complicated procedures could drastically impair operators’ performance. This means that a systematic approach that can properly evaluate the complexity of procedures is indispensable for minimizing the side effects of complicated procedures. For this reason, Park et al. have developed a task complexity measure called TACOM that can be used to quantify the complexity of tasks stipulated in emergency operating procedures (EOPs) of nuclear power plants (NPPs). The TACOM measure consists of five sub-measures that can cover five important factors making the performance of emergency tasks complicated. However, a verification activity for two kinds of complexity factors—the level of abstraction hierarchy (AH) and engineering decision (ED)—seems to be insufficient. In this study, therefore, an experiment is conducted by using a low-fidelity simulator in order to clarify the appropriateness of these complexity factors. As a result, it seems that subjects’ performance data are affected by the level of AH as well as ED. Therefore it is anticipate that both the level of AH and ED will play an important role in evaluating the complexity of EOPs.

Suggested Citation

  • Park, Jinkyun & Jung, Wondea & Jung, Kwangtae, 2008. "The effect of two complexity factors on the performance of emergency tasks—An experimental verification," Reliability Engineering and System Safety, Elsevier, vol. 93(2), pages 350-362.
    • Handle: RePEc:eee:reensy:v:93:y:2008:i:2:p:350-362
    DOI: 10.1016/j.ress.2006.09.027
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    Cited by:

    1. Monferini, A. & Konstandinidou, M. & Nivolianitou, Z. & Weber, S. & Kontogiannis, T. & Kafka, P. & Kay, A.M. & Leva, M.C. & Demichela, M., 2013. "A compound methodology to assess the impact of human and organizational factors impact on the risk level of hazardous industrial plants," Reliability Engineering and System Safety, Elsevier, vol. 119(C), pages 280-289.
    2. Ge, Xiangyu & Zhou, Qianxiang & Liu, Zhongqi, 2020. "Assessment of space station on-orbit maintenance task complexity," Reliability Engineering and System Safety, Elsevier, vol. 193(C).

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