What is the purpose of a Center in the national airspace system?

• A. To provide weather briefings to pilots.
• B. To coordinate arrivals and departures at a major airport.
• C. To manage en route separation and sequencing for high-altitude flights.
• D. To monitor runway conditions.

Answer: (C)

Centers handle the flow of aircraft as they travel between airports at high altitudes, focusing on keeping traffic safely spaced and properly sequenced across large regions. They issue clearances, manage en-route separation, and coordinate handoffs from one center to the next as flights move along the routes. This is what keeps the national airspace system running smoothly for high-altitude, long-distance travel.

Weather briefings are provided by other facilities, not by Centers; coordinating arrivals and departures at a single airport is the job of TRACONs and the local tower; monitoring runway conditions is handled by airport operations and weather services. The Centers’ main purpose is en-route separation and sequencing for high-altitude flights.