Touchdown zone lights consist of which of the following?

• A. A single row of lights along the runway edge
• B. Two rows of transverse light bars disposed symmetrically about the runway centerline in the runway touchdown zone
• C. Centerline lighting
• D. Approach lights at the runway end

Answer: (B)

Touchdown zone lights are designed to give you clear depth cues as you approach the runway, helping you identify the exact point to touch down. They achieve this by arranging two rows of light bars on either side of the runway centerline within the touchdown zone. This symmetrical pattern near the threshold provides a distinctive visual reference that improves depth perception, especially in low-visibility conditions.

The other options describe different lighting systems: a single row along the runway edge would be edge lights, centerline lighting runs along the middle of the runway, and approach lights are located at the far end to guide you in from the approach.