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Multiple Choice

What color shall all centerline runway markings be?

Centerline runway markings are painted white to provide the highest contrast along the runway axis. The retroreflective property enhances visibility at night by reflecting light from aircraft headlights back toward the pilot, making the markings easy to see in low-light conditions. Yellow is used for taxiway centerlines, while blue and green relate to other airport guidance and surface markings, not the runway centerline. So the markings should be retroreflective white.

Centerline runway markings are painted white to provide the highest contrast along the runway axis. The retroreflective property enhances visibility at night by reflecting light from aircraft headlights back toward the pilot, making the markings easy to see in low-light conditions. Yellow is used for taxiway centerlines, while blue and green relate to other airport guidance and surface markings, not the runway centerline. So the markings should be retroreflective white.