The ADS-B NRA service provides a cost effective solution to achieve benefits in terms of capacity, efficiency and safety in a similar way as it could be achieved with an SSR.
For more details, please refer to http://www.eurocontrol.int/cascade/public/standard_page/ads_b_nra.html.
EASA certified A320/A330/A340 aircraft at the beginning of 2008 and A380 aircraft at the end of 2007 eligible for ADS-B NRA operations. However, operators must obtain an operational approval from their Authorities before starting ADS-B NRA operations. Refer to 2.6.2 – Operational Approval of ADS-B OUT.
2.2.2. ADS-B SURVEILLANCE IN RADAR AREAS (ADS-B RAD)
The ADS-B-RAD service enables to decommission redundant SSRs and to provide the same level of surveillance service in areas where radar surveillance currently exists. It applies to en-route and terminal phases of flight in airspace classes A to E.
The application improves safety and reduces surveillance costs through the replacement of some SSRs with ADS B receivers.
Note: The European CASCADE program defines the ADS-B RAD service areas with high traffic density and the ADS-B NRA service for areas with low traffic density. Therefore, for the ADS-B RAD service, ATC ground stations will still use a minimum number of SSR as backup. The use of ADS-B ground receivers combined with a minimum number of SSR is more cost-effective than an exclusive set of SSR.
For more details, please refer to
http://www.eurocontrol.int/cascade/public/standard_page/RAD.html
At the time of writing the brochure, Eurocontrol and industrial partners work on standards for the provision of the ADS-B RAD service.
2.2.3. ADS-B SURVEILLANCE ON AIRPORT SURFACES (ADS-B APT)
The ADS-B APT service provides ATC controllers with a new surveillance tool of movements on airport surface. It covers aircraft and ground vehicles equipped with an ADS-B emitter. The ADS-B APT service may be used as either a supplement or substitute for existing ground installations (e.g. Surface Movement Radar – SMR).
At the time of writing the brochure, Eurocontrol and industrial partners work on standards for the provision of the ADS-B APT service.
ADS-B, as a new technology, brings its set of new terms. The most commonly used when talking about ADS-B are the following. Technical terms may not be of operational interest but may be useful during discussions with engineers.
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