computer software for use in the field of avionics which shows an aircraft symbol on an airport chart or diagram and which includes a warning system for pilots

Computer software and computer hardware for use in the field of avionics, which shows a symbol on an airport chart or diagram corresponding to the location of the vehicle using the GPS coordinates or other location information, which may optionally include a warning that alerts pilots of being on a runway, about to enter a runway, and distance information based on position on or near the runway