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A key driver of the ADS-B progress in Europe is the CRISTAL Co-opeRative ValidatIon of Surveillance Techniques and AppLications of ADS-B) initiative of the CASCADE Programme. This initiative consists of validation trials, as a means of testing the technology in real situations, focussing on “pocket areas”, where the operational needs for ADS-B applications exist and growing to cover wider regions (“crystallisation effect”). The CRISTAL approach is based on partnerships (collaborative funding arrangements) between CASCADE and its stakeholders (local ANSPs, airlines and industry). The sharing of results and information exchange maximises benefits. The CRISTAL trials, seek also to make best use of the Agency investments e.g. the ADS-B Validation Testbed (AVT), which is the reference platform for the ADS-B validation work in Europe.
The CRISTAL projects will provide inputs to the standardisation, certification and operational approval. The ADS-B standards and certification together with the CRISTAL trials will form the bridge to a harmonised implementation of ADS-B in Europe, initially in “pocket” areas and then on a wider scale.
The CRISTAL approach had initially focussed mainly on ANSPs plus industry partnerships and was using opportunity traffic. Now this is being complemented by the ADS-B Pioneer Airlines project. The objective of the latter is to provide support to airlines to reach airworthiness approval of their installations for ADS-B NRA. The certification will be in accordance with the EASA material (Acceptable Means of Compliance, AMC) and the relevant standards, mentioned above.
CRISTAL Projects
An overview of the currently ongoing CRISTAL projects is given below:
Project
Objectives
Planned
Completion Date
CRISTALSURFT
Simulations and trial of ATSAW SURF
2009
CRISTAL GA
Trials of ADS-B NRA and
ATSAW for General Aviation
