In what situation would verbal commands be prioritized over visual signals?

Verbal commands are prioritized in low visibility conditions because communication needs to be clear and direct when visual signals may not be easily seen or understood. In such situations, relying on visual signals can lead to misunderstandings or misinterpretations, which can be dangerous.

Communicating verbally allows the signal person to ensure that the operator receives clear instructions, regardless of visual obstructions or conditions like fog or heavy rain that could hinder sight. This approach helps maintain safety and efficiency, ensuring that the operator can respond appropriately to commands even when visibility is compromised.

While other situations mentioned may influence the effectiveness of communication, such as having many personnel involved or the distance between the operator and the signal person, the critical factor in low visibility is the potential for miscommunication due to lack of visual clarity.