Airports play an important role for air travel.
During take-offs and landings, when driving down the runways and taxiways, an airplane must follow the orders of air traffic controllers. With radar and their own eyes air traffic controllers watch what is happening in the airport and the skies above, while giving detailed directions. In the runways there are aviation lights to guide pilots for take-offs and landings. Signals are sent to the airplanes to let them know their flight path for safety at night or on cloudy days.
Chemical fire trucks and rescue vehicles can be called out in the event of an accident.