Use of Risk Analysis During Operations Phase

Abstract

Quantitative risk analysis was for a long time used mainly for the design phase and for extensive modifications. If the analysis was carried out in the operations phase, it was conducted in a way corresponding to use in the design phase, without reflecting the vast differences between design and operation from a HES (or strictly speaking major hazard risk) management point of view. In the last ten years, the use of QRA has increased in the operations phase. It is starting to be conducted in different ways, in order to reflect the differences that are important from a management point of view. Several aspects in this connection are discussed in this chapter.