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To evaluate the D-AIM concept live trials will be performed as part of D-AIM. LFV will provide the infrastructure and do the necessary adaptions to align with the D-AIM concept. This section describes the use cases addressed in the trials.
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Trial use cases
Five use cases will be addressed in the trials;
Provision of base-line aeronautical data via a web feature service (WFS) and/or a web mapping service (WMS) to ground users and pre-flight airborne users.
Provision of Temporary Segregated Area (TSA) status in-flight, graphically and geo-spatially displayed
Taxiway (TWY) and/or runway (RWY) closure notification in-flight, graphically and geo-spatially displayed
Provision of meteorological (MET) information in-flight, graphically and geo-spatially displayed. MET messages used in the trials will be:
- METAR
- SIGMET
All use cases in the D-AIM trials that include provision of information in-flight will use broadcast mode from ground to air. Most use cases would probably benefit from having a broadcast mode and a demand mode (request from pilot, reply from ground system) working in parallel. However, due to limitations in project resources both transmission modes cannot be encompassed for in the trials. Therefore broadcast mode have been chosen as the only transmission mode for the trials, this choice is based on the intention to make use of as much of the already existing equipment, knowledge and experiences within LFV as possible.
Trials disposition
The D-AIM trials will be organised in two phases, further described below
Phase 1
The first phase will encompass the set-up and installation of the D-AIM system and equipment in small scale and also include verification of functionality. "Small scale" referring to an Airport Mapping Database (AMDB) for one airport, one ground station and one aircraft will be part of the first phase of the D-AIM trials. The software for the Electronic Flight Bag (EFB) used in phase 1 will be developed by LFV.
Phase 1 will also include lobbying activities with external user focus, trying to get one or more external users to be part of the second phase of the D-AIM trials. A part of these lobbying activities will be a live demonstration showing the Phase 1 system in operation, combined with a workshop.
Phase 2
The second phase will include more airports, more ground stations and hopefully more aircraft. Approximately twelve ground stations and AMDB for five airports will be part of the D-AIM trials' second phase. The EFB/CDTI software developed by LFV will possibly be replaced by software developed by a commercial provider.
The validation of the D-AIM system and applications will mostly be based on experiences and data collected during the second phase.
Use cases may be added, extended or modified if found opportune, depending on related evolutions such as for example is the case with AIXM5 and Digital Notam.
Find out more about the trials
A comprehensive description of the trials is available in the D-AIM Trials Definition found in the Documents section in the left hand menu.
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