AirportSim aids an airport manager interested in efficiency to distribute resources throughout a model airport, balancing cost with customer satisfaction. The AirportSim application is made up of a number of user-manipulable simulation objects that define the airport layout and parameters, such as check-in counters, waiting areas, and security checkpoints. Simulation controls affect the simulation globally, including a terror alert level control that allows the manager to plan for different emergency alert levels as defined by the United States Department of Homeland Security. As passengers walk through the virtual airport, the manager can identify bottlenecks and make changes in real-time to increase the efficiency of the workforce.
(Source: http://tangible.media.mit.edu/projects/airportsim/)