What is the minimum width of the transitional surface?

What is the minimum width of the transitional surface?

• A. 2050 ft
• B. 1050 ft
• C. 900 ft
• D. 1500 ft

Answer: (B)

Transitional surfaces serve as a buffer around the runway, extending outward from the runway edges to provide obstacle clearance as aircraft rotate, take off, and climb out. The standard defines a fixed minimum width for this buffer, which is 1050 feet. That width ensures there’s enough lateral space to keep obstacles out of the path of aircraft during these critical phases. The other widths either exceed or fall short of this mandated minimum, so 1050 feet is the correct choice for the minimum transitional surface width.

Transitional surfaces serve as a buffer around the runway, extending outward from the runway edges to provide obstacle clearance as aircraft rotate, take off, and climb out. The standard defines a fixed minimum width for this buffer, which is 1050 feet. That width ensures there’s enough lateral space to keep obstacles out of the path of aircraft during these critical phases. The other widths either exceed or fall short of this mandated minimum, so 1050 feet is the correct choice for the minimum transitional surface width.