Journal of the Ergonomics Society of Korea (대한인간공학회지)

Ergonomics Society of Korea (대한인간공학회)
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An Improvement of Evaluation Items for a Subjective Workload Assessment in Nuclear Power Plants

원자력발전소의 주관적 업무량 평가를 위한 평가 항목 개선

  • Park, Jae-kyu (Department of Industrial Management Engineering, Korea University) ;
  • Lee, Yong-Hee (I & C and Human Factors Research Division, Korea Atomic Energy Research Institute)
  • 박재규 (고려대학교 산업경영공학과) ;
  • 이용희 (한국원자력연구원 계측제어인간공학연구부)
  • Received : 2010.03.19
  • Accepted : 2010.07.08
  • Published : 2010.08.31
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Abstract

Workload assessment is one of the important elements of the human factors evaluation for the nuclear power plants in operation. This paper describes a further study upon the additional elements of the workload which elements should be considered in the subjective workload assessment. We have tried to predict the burden of the work and to improve the work through a comparison of the objective workload and the subjective workload in the previous studies in nuclear power plants. However, there is a restriction to perform a precise assessment because of the limitations of the method itself. The objective workload assessment is performed by relative comparison using the quadrant analysis with objective workload and subjective workload because there were no clear criteria of objective workload assessment. And the subjective workload assessment is performed by NASA-TLX (NASA Task Load Index) which includes six evaluation dimensions of subjective workload. NASA-TLX is difficult to grasp the other aspects that could influence on the subjective workload because the analysis relies on predetermined assessment items. We conduct a factor analysis between the factors that affect the workload and the assessment adopted from ISO 10075 and NASA-TLX. At the same time, this study suggests other evaluation elements which can be added for subjective workload assessment except for evaluation elements of NASA-TLX.

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References

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