Air traffic control (ATC) is a service that manages the safe and orderly flow of air traffic in the skies and at airports. Controllers use radar and radio communication to guide pilots, ensuring that aircraft maintain safe distances from each other during takeoff, landing, and while flying. ATC is divided into different sectors, including ground control, which manages aircraft on the ground, and tower control, which oversees takeoffs and landings. The primary goal of air traffic control is to prevent collisions and ensure efficient travel for all flights, contributing to overall aviation safety.