In ALS, what does RAIL stand for?

In ALS, what does RAIL stand for?

• A. Runway Alignment and Illumination Lamps
• B. Runway Approach Illumination Lights
• C. Runway Auxiliary Indicator Light
• D. Sequenced Flashing Lights

Answer: (B)

RAIL stands for Runway Approach Illumination Lights. This refers to the lights that form part of the approach lighting system and provide the visual cues guiding the pilot along the final approach toward the runway threshold, especially in low visibility. They extend along the approach path to aid alignment and depth perception as you transition from instrument to visual reference. The other terms describe different lighting elements or naming, which is why the established expansion is Runway Approach Illumination Lights.

RAIL stands for Runway Approach Illumination Lights. This refers to the lights that form part of the approach lighting system and provide the visual cues guiding the pilot along the final approach toward the runway threshold, especially in low visibility. They extend along the approach path to aid alignment and depth perception as you transition from instrument to visual reference. The other terms describe different lighting elements or naming, which is why the established expansion is Runway Approach Illumination Lights.