Evaluation of risks

A TRA is a formal risk assessment for a specific task

It breaks the task down into steps, usually derived from the Work Instruction, and then:

• analyses the potential hazards for each step,
• records the existing controls already specified by procedures,
• and describes any additional controls required for each step to ensure the risks remain acceptable.

It is designed to be referred to before conducting the task as a reminder of the potential hazards and necessary controls.

Every task that is conducted regularly should have a TRA written for it.

If about to conduct a non-routine task that includes potential hazards, a TRA should be created if one does not already exist.

Definitions

As Low as Reasonably Practicable (ALARP): BGP Offshore has a legal duty to reduce risks to a level that is As Low as Reasonably Practicable (ALARP). Risk is shown to be ALARP when it can be demonstrated that the risk of activity has been reduced to a level acceptable to stakeholders. To reduce a risk to a level “as low as reasonably practicable” represents the point where the time, trouble, difficulty and cost of further reduction measures become unreasonably disproportionate to the additional risk reduction obtained.

In other words – no task is risk free; ALARP allows focusing of efforts on where they will have the most impact.

Consequence: Outcome of an event affecting objectives.

Hazard: A hazard is any object, situation, or behavior that has the potential to cause injury, ill health, or damage to property or the environment.

Hazard Effect: The consequences (harm) if a particular hazard is realized. Hazard effect in this context covers injury to people, ill-health or damage to property, equipment or the environment.

Initial Risk: The initial risk rating is based on the realistic outcome (severity) identified in the Hazard Effects and the likelihood of the Hazard Effects occurring, with all the BGPO existing controls in place. (E.g. A1 (Low), B4 (Medium), C5 (High)

Likelihood: Chance of something happening. This is targeted when trying to reduce the event from happening.

Residual Risk: Risk remaining after any additional control measures being applied which are excluding from BGPO existing controls. (E.g. A1 (Low), B4 (Medium), C5 (High)

Risk: The product of the chance that a specific adverse event will occur and the severity of the consequences of the event.

Severity: The numeric value assigned to a consequence.