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Step 3 - Evaluate likelihood of an event

Step 3 Evaluate likelihood of an event Risk analysis tasks Risk Communication tasks

The purpose of this stage is to assess the likelihood of any event that will result in the consequences outlined in Step 2

1. Assess the likelihood of single and cumulative hazard events (cascading hazards are addressed against the trigger hazard).

2. Cumulative hazards may result in an increase in likelihood e.g. three cumulative hazards which are “possible” may increase overall likelihood to “likely”.

1. Record decisions and assumptions about likelihood and occurrence for transparency and use in communication at step 4.

Full table Steps 1-5