What's New in NextGen

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Implementing NextGen initiatives involves complex activities ranging from concept development to deployments of capabilities in the National Airspace System (NAS).

Since March, 36 new ADS-B radio stations became operational, bringing the total to 481. Additionally, the network includes advisory services and separation services. A service volume is a defined volume of airspace in the NAS within which a set of ADS-B services are available and achieved the required performance for the set of services.

Since March, new service volumes included:

• 23 Advisory Terminal Service Volumes
• 1 New Advisory Surface Service Volume
• 1 New Advisory Enroute Service Volume
• 1 New Separation Terminal Service Volume
• 1 New Separation Enroute Service Volume

More specific localized capabilities enabled by ADS-B and a description of the three types of service volumes (En Route, Terminal and Surface) can be found on the NextGen website under technical maps.

Satellite-based procedures, updated every eight weeks, are real implementations that currently provide benefits. These implemented procedures and identification of other implementations are on our interactive maps.

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