What is the primary function of approach control?

• A. To manage all air traffic within the terminal area
• B. To facilitate aircraft departures from the runway
• C. To manage arriving aircraft until they reach the tower's control
• D. To coordinate emergency landings

Answer: (C)

The primary function of approach control is to manage arriving aircraft until they reach the tower's control. This responsibility involves providing instructions and guidance to ensure safe and efficient integration of incoming flights into the terminal airspace. Approach control typically handles aircraft during their descent and approach phases, ensuring they are sequenced properly for landing and are maintained at safe distances from one another.

In this context, the approach control ensures that arriving aircraft are safely guided through various stages of their descent, often providing critical vectors and altitude adjustments. This allows for the orderly flow of traffic into the airport and is a key aspect of air traffic management, as it prevents conflicts and reduces the risk of incidents.

While the other options touch on important aspects of air traffic control, they do not accurately reflect the primary role of approach control specifically. For example, managing all air traffic within the terminal area encompasses more than just the arrival phase and includes departures and other traffic management functions. Facilitating aircraft departures focuses on a different aspect of operations, while coordinating emergency landings, although a crucial function of air traffic control, is not the primary responsibility of approach control.