Color and Type of Signal |
Aircraft on the Ground |
Aircraft in Flight |
Vehicles, Equipment and Personnel |
Steady green |
Cleared for takeoff |
Cleared to land |
Cleared to cross, proceed or go |
Flashing |
Cleared for taxi |
Return for landing, followed by steady green at appropriate time |
Not applicable |
Steady red |
STOP |
Give way to other aircraft and continue circling |
STOP |
Flashing |
Taxi clear of the runway in use |
Airport unsafe, do not land |
Clear the taxiway or runway |
Flashing |
Return to starting point on the airport |
Not applicable |
Return to starting point on the airport |
Alternating |
Exercise Extreme Caution |
Exercise Extreme Caution |
Exercise Extreme Caution |