What does a steady green light from the light gun indicate?

A steady green light from the light gun indicates "Proceed to cross." In the context of airfield operations, this signal is used to communicate with aircraft. When an aircraft receives a steady green light, it means that it is safe to move forward, whether that involves taxiing onto a runway or crossing a specific point.

The importance of this signal lies in its clarity and significance for safety within the airfield. The steady green light creates an unambiguous directive that pilots can trust, ensuring a smooth flow of operations on the ground and minimizing the risk of accidents.

Understanding this signal is crucial for pilots and ground crew, as it directly affects their actions during taxiing and crossing procedures. Recognizing and accurately responding to light signals is an essential part of safe airfield management.