What's New in NextGen: August 2012 Posting

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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 July, 2 new ADS-B radio stations became operational, bringing the total to 400. 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 provided and the required performance for the set of services is achieved.

New service volumes were added in advisory services:

• 1 Terminal Service Volume
• 2 Surface Service Volumes
• 8 Separation Terminal Service Volumes

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 our website under technical maps.

Since July, we published new satellite-based navigation procedures:

• WAAS LPVs - 2

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