Which sign provides the remaining runway length in 1000-foot increments?

• A. Runway Safety Area/Obstacle-Free Zone Boundary
• B. Runway Distance Remaining
• C. ILS Critical Area Boundary
• D. Runway Location

Answer: (B)

The sign that shows how much runway is left is the Runway Distance Remaining sign. It displays the remaining runway length in 1,000-foot increments, so pilots can quickly gauge whether there is enough distance left for a safe landing rollout or a rejected takeoff. This information is crucial for performance planning and situational awareness as you approach or depart the runway.

Other signs mark boundaries or locations rather than distance. A sign indicating the Runway Safety Area/OFZ boundary marks where protected space begins or ends, not how much runway remains. The ILS critical area boundary sign demarcates the protected area around the ILS, again not the remaining runway length. The Runway Location sign identifies which runway you’re on or near, which helps with navigation but does not convey remaining runway distance.