“If you can’t eliminate the hazards or substitute safer alternatives, engineering controls are the next best options. These involve using work equipment or other means to prevent workers from being exposed to a hazard. Engineering controls are physical changes to the workplace and may include equipment guarding, guardrails, traffic control lanes and barriers between vehicles and pedestrians, and many other options. For example, while working at heights cannot be avoided in construction, guardrails can be installed to prevent falls from happening. Guardrails are an example of an engineering control.”
Controlling risks – The hierarchy of controls, WorkSafeBC, https://www.worksafebc.com/en/health-safety/create-manage/managing-risk/controlling-risks
