The NextGen roll-out
NextGen will be implemented nationally airport by airport, region by region, aircraft by aircraft, over a period of years. ADS-B applications and supporting infrastructure will be introduced in a phased deployment consisting of four segments:
Segment 1 FY 2007 - 2011
ADS-B, TIS-B, and FIS-B services would be provided in limited areas that can obtain benefits from early avionics equipage. Some aircraft would equip with advanced avionics to support airborne situation awareness applications.
Segment 2 FY 2009 - 2014
The ground ADS-B service infrastructure would be deployed on a NAS-wide scale and avionics equipage would continue.
Segment 3 FY 2015 - 2020
All aircraft would be equipped and the applications discussed below will be available NAS-wide. Existing legacy surveillance infrastructure removal would begin to eliminate unnecessary redundant ADS-B radar coverage.
Segment 4 FY 2021 - 2025
Segment 4 would be longer term, encompassing the implementation of more complex aircraft/vehicle based applications, the removal of TIS-B services as full avionics equipage is realized, and the decommissioning of unneeded legacy surveillance assets displaced by ADS-B coverage.
Segments 1, 2 and 3 will initially support the following services and applications:
Services
- ATC Surveillance
- FIS-B and TIS-B
Applications
- Final approach runway occupancy awareness
- Enhanced visual acquisition
- Enhanced visual approach
- Airport surface situational awareness
- Conflict detection
- Weather and NAS Status Situational Awareness
Goal: Complete operational status in 2025
Looking at the planned roll-out in the broadest terms, the goal is to reach complete operational status in 2025. By that time - actually by 2020 - flying in the enumerated airspace will be required to be ADS-B Out equipped. Ideally, most if not all such aircraft will also be ADS-B In equipped. The entire ground architecture will be completely built out and operational for a number of years. All the add-on ancillary services that will be available to planes through ADS-B In, and to air fleet managers, will be tested and operational. In other words, the entire ADS-B system will be fully operational.
Saying that the system will be fully built out and operational by 2025, or more realistically sometime between 2020 and 2025, does not mean that parts of it and various features will not be available much sooner, as they are completed and tested.
So far, the roll-out plan is on schedule and under budget thanks to ITT.