What color are taxiway edge markings?

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Multiple Choice

What color are taxiway edge markings?

Taxiway edge markings are designed to be highly visible both in daylight and at night, so they are painted in yellow and made retroreflective. The retroreflective property means they bounce light back toward the source (aircraft headlights), making the taxiway boundaries easy to see under low visibility conditions. That’s why the best description is retroreflective yellow. Nonreflective yellow would be harder to spot at night, white is typically used for runway markings rather than taxiways, and blue is associated with taxiway edge lights rather than painted markings.

Taxiway edge markings are designed to be highly visible both in daylight and at night, so they are painted in yellow and made retroreflective. The retroreflective property means they bounce light back toward the source (aircraft headlights), making the taxiway boundaries easy to see under low visibility conditions. That’s why the best description is retroreflective yellow. Nonreflective yellow would be harder to spot at night, white is typically used for runway markings rather than taxiways, and blue is associated with taxiway edge lights rather than painted markings.

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