An airport city is the “inside the fence” airport area of a large airport, including the airport (terminals, apron, and runways) and on-airport businesses such as air cargo, logistics, offices, retail, and hotels. The airport city is at the core of the Aerotropolis, a new urban form evolving around many major airports. The concepts of airport cities and Aerotropolises are promoted in the works of John D. Kasarda, a professor and a CEO of a consulting company associated with these concepts.