Aircraft departing from the terminal
area must comply with set instructions that will lead
them safely to their enroute departure point. The
current standard instrument departures (SIDs) are
based on factors such as navigational aids available,
aircraft performance, and obstructions to flight.
Because of its accurate and continuous location information,
GPS will offer direct and flexible departure routed,
ease congestion, and save time and fuel while maintaining
high levels of safety.
