The PRA process typically includes the following five steps:
1. Define Scope and Objectives
Start by clarifying the purpose of the PRA. Are you assessing a new facility, a process change, or a new piece of equipment? Identify the team and set clear objectives.
2. Identify Hazards
This step involves brainstorming all possible risks. Tools like checklists, historical data, and expert judgment are useful here.
3. Assess Risks
Each identified hazard is evaluated based on two main criteria:
Probability: How likely is the risk to occur?
Impact: What would happen if it did?
A risk matrix is often used to rank and prioritize risks.
4. Recommend Preliminary Controls
While PRA is not a full mitigation plan, it includes initial recommendations. These could be design changes, additional studies, or quick-fix safety measures.
5. Document and Review
Finally, all findings should be documented clearly. Regular reviews help refine the PRA as more data becomes available or as the project evolves.