Raleigh–Durham International Airport (IATA: RDU, ICAO: KRDU, FAA LID: RDU) is located at Wake County, North Carolina, United States. The airport has 3 runways and serves 38 destinations.
The number of flights makes it perfect for controllers wishing to direct traffic on multiple runways without the sometimes stressful conditions that can be found on larger airports.

Added bonus: FREE San Diego International Airport (IATA: SAN, ICAO: KSAN, FAA LID: SAN), also known as Lindbergh Field.

By being the busiest single runway airport in the US it adds some different challenge to the controllers.
KSAN has a replaced threshold that’s not simulated within Tower! 2011 so the planes will land and take off from the end of the runway.