A series of green flashes directed at an aircraft on the ground signifies?

The series of green flashes directed at an aircraft on the ground is an indication that the aircraft is clear to taxi. In aviation communication, colored signals are employed for ground operations, especially when radio communication might not be possible. A steady green light signals "clear for takeoff" or "clear to taxi," while a series of green flashes specifically designates that the aircraft can proceed safely along the taxiways.

This signaling is particularly important for safe aircraft movement on the ground, ensuring that flight crews can operate effectively even when audio communication systems may be compromised or during situations with high noise levels. Understanding these signal meanings assists pilots in maintaining situational awareness and complying with ground control instructions.