Which controller is primarily responsible for sequencing and spacing inbound traffic in the terminal area?

• A. Ground Control
• B. Approach Control
• C. Tower
• D. Center

Answer: (B)

In the terminal area, sequencing and spacing inbound traffic is handled by Approach Control. This facility, often called TRACON, uses radar and ground coordination to manage arrivals as they transition from en route flight to the final approach. They sequence aircraft for a safe, steady flow, adjust speeds and descent profiles, and vector aircraft to align them for the instrument approach and eventual handoff to the tower for landing clearance. Ground control focuses on taxiing on the airport surface, while the tower handles takeoffs, landings, and the immediate final approach airspace, and Center controls en route, high-altitude traffic. So for organizing inbound arrivals into the terminal area, Approach Control is the best fit.