What are controlled access zones designed to do?

Controlled access zones are specifically designed to restrict access to areas where overhead work is being performed. This restriction is crucial for ensuring the safety of workers and bystanders, as it minimizes the risk of accidents that could occur from falling objects or other hazards associated with overhead tasks. By clearly marking these zones and controlling who or what can enter, organizations can better manage safety protocols and protect individuals from potential dangers in work environments where overhead activities might pose risks.

The other choices, while they may pertain to operational aspects or safety in different contexts, do not directly address the primary purpose of controlled access zones.