The accidental risk assessment methodology for industries (ARAMIS)/layer of protection analysis (LOPA) methodology: a step forward towards convergent practices in risk assessment?
In the last ten years, layer of protection analysis (LOPA) emerged as a simplified form of quantitative risk assessment (QRA). The European Commission funded project Accidental Risk Assessment Methodology for Industries in the context of the Seveso 2 Directive (ARAMIS) has recently been completed. ARAMIS has several modules which give a consistent simplified approach to risk assessment which does not approach the complexity or expense of full QRA. LOPA is potentially a means of carrying out the assessment of barriers required in ARAMIS. This paper attempts to explain the principles of LOPA and the means by which it can be used within ARAMIS.
Gowland
Richard
R
European Process Safety Centre, 161-189 Railway Terrace, Rugby, Warwickshire CV 21 3 HQ, UK. RGowland-epsc@icheme.org.uk
D000062:Accidents, Occupational / Q000517:prevention & control*; D015984:Causality; D002617:Chemical Industry / Q000458:organization & administration / Q000592:standards*; D003264:Containment of Biohazards; D003663:Decision Trees; D004781:Environmental Exposure / Q000517:prevention & control*; D004868:Equipment Failure; D005060:Europe; D005062:European Union; D017408:Guidelines as Topic; D015386:Hazardous Substances; D006801:Humans; D008962:Models, Theoretical; D018570:Risk Assessment / Q000379:methods*; D017751:Safety Management / Q000379:methods*
D015386:Hazardous Substances