General Warning: Exercise extreme precautions
Flashing RED: clear the active runway. Flashing RED AND GREEN: General Warning: Exercise extreme caution.
Exercise extreme caution.
Cleared to cross
Cleared to cross
Clear active runway
clear the active runway
In aviation, flashing red means get of the runway if you are on the ground and it means the airport is not safe for landing if you are in the air.
Return to Starting Point on Airport
General Warning: Exercise extreme precautions
If your aircraft is on the ground, a steady red light from the control tower light gun means STOP. If you are airborne, a steady red light means to give way to other aircraft, and continue circling.
Exercise extreme caution
return to starting point