"Airports usually consist of a landing area, which comprises an aerially accessible open space including at least one operationally active surface such as a runway for a plane to take off and to land or a helipad, and often includes adjacent utility buildings such as control towers, hangars and terminals, to maintain and monitor aircraft."
The design and planning of airport facilities, including runways, taxiways, terminal buildings, and air traffic control towers.
"Larger airports may have airport aprons, taxiway bridges, air traffic control centers, passenger facilities such as restaurants and lounges, and emergency services."
"In some countries, the US in particular, airports also typically have one or more fixed-base operators, serving general aviation."
"Operating airports is extremely complicated, with a complex system of aircraft support services, passenger services, and aircraft control services contained within the operation. Thus airports can be major employers."
"...as well as important hubs for tourism and other kinds of transit."
"Because they are sites of operation for heavy machinery, a number of regulations and safety measures have been implemented in airports, in order to reduce hazards."
"Airports have major local environmental impacts, as both large sources of air pollution, noise pollution, and other environmental impacts."
"...making them sites that acutely experience the environmental effects of aviation."
"Airports are also vulnerable infrastructure to extreme weather..."
"...climate change caused sea level rise..."
"Utility buildings such as control towers... to maintain and monitor aircraft."
"... at least one operationally active surface such as a runway for a plane to take off and to land or a helipad."
"Passenger facilities such as restaurants and lounges..."
"A number of regulations and safety measures have been implemented in airports..."
"Airports can be major employers..."
"... important hubs for... other kinds of transit."
"...a complex system of aircraft support services, passenger services, and aircraft control services contained within the operation."
"Airports have major local environmental impacts, as both large sources of... noise pollution..."
"Passenger services..."
"... and emergency services."