Lesson 3 - Hazard Identification and Risk Management Flashcards
Definitions: Hazards
A condition or object with the potential to injure persons, damage/destroy property or hamper operational capabilities.
Types of hazards (16 hazards)
- Physical
- Mechanical
- Electrical
- Chemical
- Ergonomic
- Biological
- Fire
- Design
- Standard operating procedures
- Working environment
- Regulatory
- Defences
- Human performance
- Natural
- Technical
- Economic
When to give special attention to identifying hazards? (3 conditions)
- An unexplained increase in safety-related events or regulatory deviance
- Major operational changes
- Before/during periods of significant organisational change
Definitions: Risk
The probability that an event will occur.
Risk = No. of undesirable outcomes / Total possible outcomes
When is “As Low As Reasonably Possible” (ALARP) reached?
When the risk is tolerable and cannot be reduced further, where the solution is impractical/financially unfeasible to implement.
Regions of Risk Triangle (3 regions)
- Unacceptable
- Tolerable (earliest point of ALARP)
- Acceptable
Risk assessment process (4 parts)
- Define the problem and state the risks
- Determine the probability of undesirable outcomes
- Determine the severity of undesirable outcomes
- Determine risk acceptability
Probability tiers of adverse consequences (5 probabilities)
- Extremely improbable
- Improbable
- Remote
- Occasional
- Frequent
Severity of adverse consequences (5 tiers)
- Catastrophic
- Hazardous
- Major
- Minor/nuisance
- Negligible