As a transport company manager, build houses for the workers who will load your truck with goods and deliver them from point A to point B. It's a Simcity game with tower defense like elements.
Starting as an air traffic controller in the year 1925, your small grass airfield grows into a major international airport in 1970. Witness the WW2, the flying mail service in the 1920's, the breaking of the sound barrier, and birth of the passenger jet.