SAFETY AND EFFICIENT OPERATIONS USING GROUND-BASED

The current demand of air traffic constitutes a restrictive factor in some parts of the world. This growing demand for services will likely shift from scheduled operations towards more unscheduled operations as air taxi, fractional ownership, and on-demand small low-cost aircraft. There will be, therefore, need of implementation, total or partial, of the CNS/ATM (Communication, Navigation, Surveillance/Air Traffic Management) system proposed by ICAO (International Civil Aviation Organization). One of the main goals of the CNS/ATM system is to improve the capacity of the air traffic system mainly with respect to the arrivals and departures per minute rate, at the air transport terminals. The technologies through satellite, specifically, the GNSS (Global Navigation Satellite System) systems, among them, GPS (Global Positioning System) and GLONASS (Global NAvigation Satellite System) and the augmentation systems, as for instance, SBAS (Space-Based Augmentation System) and GBAS (Ground-Based Augmentation System), they will bring great benefits for users and air traffic controllers, once the current systems of navigation do not supply accuracy and enough integrity to guarantee capacity, efficiency and safety in agreement with the current and futur