Simulation of commercial flights

A model is set up to simulate commercial flights in 4-D-mode. Basic data are standard flight tracks of German domestic flights; altitudes included range up to flightlevel FL300. For simulation runs, flight times profiles are derived both from real flights and departure times respectively fly-over times of the Berlin gates. Aircraft movements are simulated with respect to airways, departure and arrival routes, air traffic control areas, starts and landings. Conflicts arise in the case of too short distances to other aircraft. They are solved dependently on flight attitude, e.g. en route state by changing the flight level, or by holding procedures if an aircraft cannot be sequenced for final approach. The simulation is carried out for 465 domestic flights per day. Some results and an outlook on suitable applications are given.