What does it mean when the Tower shines a flashing green light at you?

When the Tower shines a flashing green light at you, it indicates that you should proceed on your route as given by Air Traffic Control (ATC). This signal is part of the communication protocol used to convey instructions to ground vehicles operating on the airside of the airport.

In the context of airside operations, a flashing green light serves as a clear directive to continue safely and without interruption, ensuring efficient movement around the airport environment. This is particularly important for vehicles that may be interacting with aircraft or operating in proximity to runways and taxiways, where timely actions can help maintain safety and operational flow.

Other types of signals, such as a steady green light or different colors, convey other meanings—like clearance to take off or a stop signal—highlighting the importance of understanding these signals for safe airside operations. This clear communication helps prevent misunderstandings that could lead to dangerous situations in a bustling airport environment.