Any runway or runways currently being used for takeoff or landing. When multiple runways are used, they are all considered active runways. In the metering sense, a selectable adapted item which specifies the landing runway configuration or direction of traffic flow. The adapted optimum flight plan from each transition fix to the vertex is determined by the runway configuration for arrival metering processing purposes.

Listed in the Pilot/Controller Glossary as a cross-reference to RUNWAY IN USE/ACTIVE RUNWAY/DUTY RUNWAY, whose text is shown above.

Source FAA Pilot/Controller Glossary↗ · checked 2026-08-25