Yellow lettering on a black background, often with a yellow border. These tell the operator exactly which apron or taxiway they are currently on.
Continuous red or white lines that delineate the "envelope" or footprint of the aircraft. Ground equipment must remain outside these lines until the aircraft is powered down. These tell the operator exactly which apron or
Black lettering on a yellow background. These provide location data, such as gate numbers or terminal directions.
Yellow solid lines that guide the nose wheel of an aircraft toward a specific parking position or gate.