QRA is a technique used to systematically calculate the risks from hazardous events. It involves predicting the size of consequences associated with a hazard, and the frequency at which a release of the hazard may be expected to occur. These aspects are then combined in order to obtain numerical values for risk – usually risk of fatality.
This presentation explores the basics of QRA and offers an insight into this risk assessment methodology.
The QRA process
Identification of QRA scenarios
Inventory calculations & frequency assessment
Risk calculation - societal risk