Which item is crucial for ramp safety communication?

Walkie-talkies are essential for ramp safety communication because they facilitate immediate and direct communication among personnel on the ramp. In a fast-paced environment like an airport ramp, effective communication is vital to coordinate activities, alert team members of potential hazards, and ensure a smooth operation. Walkie-talkies allow for real-time updates and responses, making it easier for ground staff to convey crucial information quickly and effectively, which is critical for maintaining safety protocols.

While mobile phones can serve as communication tools, they may not be as effective due to potential connectivity issues, slower response times, or the necessity of dialing numbers. Flashing lights and warning signals are important visual tools for signaling or alerting workers, but they do not replace the need for clear, verbal communication necessary in complex and dynamic ramp operations where immediate feedback is required.