Process Safety and Environmental Protection 2016 DOI: 10.1016/j.psep.2016.06.012 View full text
Hamid Jahanian, Qamar Mahboob

Abstract: Risk based optimisation ALARP a b s t r a c tUsing the concept of ALARP (As Low As Reasonably Practicable) and the Expected Utility Theory (EUT), this paper introduces a risk-based optimisation approach to the SIL (Safety Integrity Level) determination process. In the commonly used SIL determination methods the target SIL is determined by comparing the existing level of risk to a pre-set corporate risk target; the gap defines the level of risk that should be reduced by additional layers of protection, such as…

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