Cycom Communications Corp. The Control Tower is the airport's nerve center. In the tower, air traffic controllers use radar, radio, signal lights, and other equipment to direct air traffic near the airport as well as movements of aircraft on the ground. Control towers at major airports may handle almost 190 landings and take-offs an hour during peak periods.
Some airports have control towers on top of the terminal.
Large windows enclose the tower and give the controllers a clear view of the airport grounds and of landings and take-offs. In the control tower, the air traffic controllers guide aircraft as they land, take off, and taxi. The controllers see that the traffic keeps moving smoothly, rapidly, and safely. They must have good eyesight, speak clearly over the radio, and be able to think quickly. The controllers must also be able to remain calm during periods of heavy air traffic.