What kind of equipment is used to form a secure safety barrier at heights?

Guard rails are specifically designed to create a secure safety barrier at heights, preventing falls from elevated surfaces such as scaffolding, roofs, or work platforms. They act as a physical barrier, providing support and safety to workers by stopping them from falling off the edge of structures. This is crucial in vertical workplaces where the risk of falling is a significant concern.

While full-body harnesses serve an essential role in fall protection by securing workers to a fall arrest system, they do not act as barriers. Safety helmets provide head protection from falling objects but do not prevent falls from heights. Industrial gloves, although important for hand protection, do not contribute to safety at heights in terms of fall prevention. Thus, guard rails are the primary equipment used for forming a safety barrier at heights.