Illustrate the hierarchy of control measures that can be used to minimize risks associated with working at heights?

1. Elimination: The most effective control measure is to eliminate the need to work at heights whenever possible. This can be achieved by using alternative methods such as working from the ground or using equipment like cherry pickers or scissor lifts.

2. Substitution: If working at heights cannot be eliminated, the next best option is to substitute the task with a safer alternative. This could involve using a different type of equipment or changing the work process to reduce the risk of falls.

3. Engineering controls: Engineering controls involve physically changing the work environment to reduce the risk of falls. This could include installing guardrails, toe boards, or safety nets to prevent workers from falling.

4. Administrative controls: Administrative controls involve implementing policies and procedures to minimize the risk of falls. This could include providing training on working at heights, implementing a permit-to-work system, or establishing safe work practices.

5. Personal protective equipment (PPE): PPE should be used as a last resort when all other control measures have been exhausted. This could include harnesses, lanyards, helmets, and other equipment to protect workers in the event of a fall.

By implementing a hierarchy of control measures, employers can effectively minimize the risks associated with working at heights and ensure the safety of their workers.