Communications, Navigation, Surveillance / Air traffic management
Airspace capacity is determined by the combined capabilities of the communications, navigation, surveillance and air traffic management systems (CNS/ATM) in place. These include ground and aircraft-based systems and requirements vary according to the airspace being considered.
We have regulations and aircraft equipment mandates in place to support CNS/ATM. These mandates implement Performance-Based Navigation (PBN), Mode S Transponders and Automatic Dependent Surveillance-Broadcast (ADS-B) to provide the navigation and surveillance capabilities needed to improve air traffic management efficiency and harmonise Australian operations with global standards.