Runway Guard Lights Configuration A involves which arrangement?

Runway Guard Lights Configuration A involves which arrangement?

• A. Two pairs of yellow lights at each side of taxiway, at distance from runway centerline not less than specified for a take-off runway
• B. Yellow lights spaced across the taxiway at 3m intervals
• C. Single yellow beacon at the taxiway center
• D. Red lights across the taxiway near the runway

Answer: (A)

Runway Guard Lights are designed to warn pilots as they approach a runway boundary, using amber lights that mark the taxiway entry to the runway. The configuration described places two pairs of yellow (amber) lights on each side of the taxiway at a specified offset from the runway centerline, ensuring the boundary is clearly visible and that pilots have adequate lead time before reaching the runway. This setup matches the intended purpose of guard lights: providing a clear, bilateral warning from both sides of the taxiway entrance. The other options don’t fit this purpose—spreading lights across the taxiway, using a single beacon, or using red lights do not align with the typical amber boundary indication used for Runway Guard Lights.

Runway Guard Lights are designed to warn pilots as they approach a runway boundary, using amber lights that mark the taxiway entry to the runway. The configuration described places two pairs of yellow (amber) lights on each side of the taxiway at a specified offset from the runway centerline, ensuring the boundary is clearly visible and that pilots have adequate lead time before reaching the runway.

This setup matches the intended purpose of guard lights: providing a clear, bilateral warning from both sides of the taxiway entrance. The other options don’t fit this purpose—spreading lights across the taxiway, using a single beacon, or using red lights do not align with the typical amber boundary indication used for Runway Guard Lights.