Emergency systems survivability analysis

Two other techniques, ESSA and EERA, are used to assess the effects of major accidents. Essential systems survivability analysis (ESSA) is as its name implies analysis is carried out to see whether essential systems such as emergency shutdown (ESD) or fire-flghting systems can survive, say, flood or localized fire. Escape, evacuation and rescue analysis (EERA) is used in particular in offshore platforms... 

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