Runway Lights outline what portion of the runway?

Runway Lights outline what portion of the runway?

• A. Lateral and longitudinal limits of the usable runway surface
• B. Approach lighting array
• C. Taxiway route boundaries
• D. Sign locations

Answer: (A)

Runway lights define the portion of the runway that is actually usable by marking it in two directions. The lights along the edges show the width, outlining the lateral limits of the usable surface, while lighting and threshold cues indicate how far along the runway the usable length extends, outlining the longitudinal limits. This boundary can change if part of the runway is displaced or closed, but the lighting tells you the portion available for landing and takeoff. Other lighting systems, like approach lighting, assist the approach but do not define the usable runway area.

Runway lights define the portion of the runway that is actually usable by marking it in two directions. The lights along the edges show the width, outlining the lateral limits of the usable surface, while lighting and threshold cues indicate how far along the runway the usable length extends, outlining the longitudinal limits. This boundary can change if part of the runway is displaced or closed, but the lighting tells you the portion available for landing and takeoff. Other lighting systems, like approach lighting, assist the approach but do not define the usable runway area.