What defines an "Active Runway" in aviation terminology?

• A. A runway currently closed for maintenance
• B. A runway not in use
• C. A runway currently being used for takeoffs or landings
• D. A secondary runway not approved for commercial flights

Answer: (C)

An "Active Runway" in aviation terminology is defined as a runway that is currently being used for takeoffs or landings. This indicates that the runway is available and safe for aircraft operations at that moment. When a runway is active, air traffic control manages the traffic to ensure safe and efficient use, directing aircraft to take off and land as required.

Understanding the term "active" in this context is essential for maintaining safe operations at an airport. An active runway is typically marked with appropriate signage and lighting to provide pilots with the necessary information for approaching and using the runway.

The other options describe situations where the runway is either closed or not available for operations, which does not align with the definition of an active runway. For instance, a runway closed for maintenance would not be accessible for aircraft, rendering it inactive. Additionally, a runway that is not in use cannot be labeled as active, and a secondary runway not approved for commercial flights would similarly imply limitations on its use, disqualifying it from being termed active.