Who must remain in plain sight of each other when giving hand signals?

The requirement for the ground worker to remain in plain sight of each other when giving hand signals is critical for ensuring safety and clear communication on the job site. When ground workers and machine operators are able to see one another, they can effectively interpret hand signals, which are often used to direct equipment and coordinate movements in an environment where noise might obscure verbal communication.

This visibility helps prevent accidents by ensuring that all parties are aware of each other's actions and intentions. The ground worker may need to signal for movements such as lowering or lifting equipment, and without being able to see each other, there is a risk of misunderstood signals, which could lead to injuries or property damage.

While a spotter, foreman, or machine operator may also need to maintain communication and awareness of their surroundings, the specific focus on the ground worker in this context underscores their role in directly managing safety on the ground in conjunction with the equipment operator's actions.