Example of a quantified bow tie
Bow tie: a risk quantification method

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Example of a quantified bow tie


Bow tie: a risk quantification method

Author : Olivier IDDIR

Publication date: June 10, 2015, Review date: September 2, 2020 | Lire en français

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6. Example of a quantified bow tie

6.1 Case study presentation

To illustrate the quantified bow-tie methodology, a simplified case is studied with the dreaded event "rupture of an unloading arm of a liquefied gas wagon". The assumptions are as follows:

  • liquefied gas is not unloaded in a closed enclosure;

  • the unloading station is located in an area that could potentially be affected by domino effects (explosion on a neighboring unit).

This case study is intended to illustrate the various stages of the method:

  • the creation of the fault tree, which enables an analysis of the minimum cuts in the tree and an assessment of the frequency of occurrence of the...

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