Which type of radar is primarily used for surveillance in air traffic control?

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The correct answer, terminal radar, is used primarily for surveillance in air traffic control, especially in the vicinity of airports. Terminal radar systems provide detailed information about aircraft positions and movements, crucial for ensuring safe takeoffs, landings, and ground movements within the controlled airspace around an airport.

Terminal radar operates at lower altitudes and is designed to track aircraft in close proximity, allowing air traffic controllers to maintain safe separation between aircraft as they approach and depart from the airspace. This radar system enhances situational awareness and helps prevent collisions, making it essential for the safety and efficiency of airport operations.

While primary radar and secondary radar are also important in air traffic control, terminal radar specifically refers to the systems set up to manage the crowded airways and airspace around major airports. Mobile radar may be used for various applications but is not primarily designated for surveillance in air traffic control.