Journal OACI

No. 2

Implementation of space-based communications, navigation, surveillance and air traffic management (CNS/ATM) systems, a concept endorsed by ICAO in 1991, is well under way. Numerous planning, research and development activities have been initiated. In the months and years ahead, the ICAO Journal will keep readers informed on efforts to implement the new CNS/ATM systems worldwide. Our first article comes from Singapore, where a new ATC system with ADS capability is scheduled to enter service next year. A new radar simulator functionally identical to the future operational system is already in operation.