What are the colors and spacing of taxiway edge lights?

What are the colors and spacing of taxiway edge lights?

• A. Blue; spacing no more than 30 m
• B. Green; spacing 60 m
• C. White; spacing 25 m
• D. Amber; spacing 40 m

Answer: (A)

Taxiway edge lights are blue, and they are placed to clearly mark the sides of the taxiway so the edges stay visible to the pilot, especially at night or in low visibility. The spacing is kept tight—no more than about 30 meters between lights—so the edge line remains continuous and easy to follow along the entire taxiway length and around curves. If the lights were spaced farther apart, the edge could disappear from view and you might misjudge where the pavement ends. The other colors don’t apply to taxiway edges: green is used for the taxiway centerline, white for runway edges, and amber has other specialized uses, not standard taxiway edge lighting.

Taxiway edge lights are blue, and they are placed to clearly mark the sides of the taxiway so the edges stay visible to the pilot, especially at night or in low visibility. The spacing is kept tight—no more than about 30 meters between lights—so the edge line remains continuous and easy to follow along the entire taxiway length and around curves. If the lights were spaced farther apart, the edge could disappear from view and you might misjudge where the pavement ends. The other colors don’t apply to taxiway edges: green is used for the taxiway centerline, white for runway edges, and amber has other specialized uses, not standard taxiway edge lighting.