What are touchdown zone markings, and where are they located?

• A. Pairs of white bars starting 100 feet past the threshold and continuing down the runway to denote the touchdown zone.
• B. A single white line at the threshold
• C. Black and yellow stripes near the mid-runway
• D. Circular dots along the centerline

Answer: (A)

Touchdown zone markings are white rectangular bars placed on both sides of the runway centerline starting 100 feet beyond the threshold and continuing down the runway at 500-foot intervals for the first 3,000 feet. They provide distance cues to help pilots identify the ideal landing zone after touchdown. This matches the description of starting near the threshold and marking the touchdown zone, unlike a single line at the threshold, black and yellow stripes, or circular dots along the centerline.