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Risk Decision Making in Operational Safety Management– Experience from the Nordic Benchmark Study

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  • Jan Holmberg
  • Urho Pulkkinen
  • Kurt Pörn
  • Kecheng Shen

Abstract

Technical Research Centre of Finland (VTT) and Studsvik AB, Sweden, have simulated decision making of the Swedish Nuclear Power Inspectorate and a power company by applying decision models in a benchmark study. Based on the experience from the benchmark study, a decision analysis framework to be used in safety related problems is outlined. By this framework both the power companies and the safety authorities could be provided with a more rigorous, systematic approach in their decision making. A decision analytic approach provides a structure for identifying the information requirements of the problem solving. Thus it could serve as a discussion forum between the authorities and the utilities. In this context, probabilistic safety assessment (PSA) has a crucial role of expressing the plant safety status in terms of reactor core damage accident probability and of risk contributions from various accident precursors. However, a decision under uncertainty should not be based solely on probabilities, particularly when the event in question is a rare one and its probability of occurrence is estimated by means of different kinds of approximations.

Suggested Citation

  • Jan Holmberg & Urho Pulkkinen & Kurt Pörn & Kecheng Shen, 1994. "Risk Decision Making in Operational Safety Management– Experience from the Nordic Benchmark Study," Risk Analysis, John Wiley & Sons, vol. 14(6), pages 983-991, December.
    • Handle: RePEc:wly:riskan:v:14:y:1994:i:6:p:983-991
    DOI: 10.1111/j.1539-6924.1994.tb00067.x
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    References listed on IDEAS

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    1. Frank Noonan & Charles A. Vidich, 1992. "Decision Analysis for Utilizing Hazardous Waste Site Assessments in Real Estate Acquisition," Risk Analysis, John Wiley & Sons, vol. 12(2), pages 245-251, June.
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