Which color lights are used at the intersection of apron areas and taxiways?

Which color lights are used at the intersection of apron areas and taxiways?

• A. Blue
• B. Green
• C. Red
• D. Amber

Answer: (D)

In airport ground lighting, colors quickly tell you what surface you’re on and what kind of movements to expect. The area where apron (ramp) operations meet taxiways is a mixed-traffic zone, so a warning cue is used there. Amber lights are placed at that apron-taxiway intersection to signal caution and alert crews to the boundary as aircraft move from the apron onto the taxiway or vice versa. This helps reduce surprises and potential conflicts in a busy area. Blue lights mark taxiway edges, and red and green serve other purposes on the airfield, so they aren’t used to designate this boundary.

In airport ground lighting, colors quickly tell you what surface you’re on and what kind of movements to expect. The area where apron (ramp) operations meet taxiways is a mixed-traffic zone, so a warning cue is used there. Amber lights are placed at that apron-taxiway intersection to signal caution and alert crews to the boundary as aircraft move from the apron onto the taxiway or vice versa. This helps reduce surprises and potential conflicts in a busy area.

Blue lights mark taxiway edges, and red and green serve other purposes on the airfield, so they aren’t used to designate this boundary.