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EGNOS Safety of Life Service
| EGNOS | |
|---|---|
| Title | EGNOS Safety of Life Service |
| Author(s) | GMV. |
| Level | Basic |
| Year of Publication | 2011 |
The EGNOS Safety of Life Service (SoL) consists of an augmentation signal to the Global Positioning System (GPS) Standard Positioning Service (SPS) intended for most transport safety critical applications. The target application domains are, thus, aviation, maritime, railway and road where degradation in the navigation system performance without a notice within the specified time to alert would endanger lives.
Terms and Conditions
The Safety of Life Service is accessible to any user equipped with an EGNOS certified receiver and located within the appropriate EGNOS SoL Service area.
However, navigation operations based on the EGNOS SoL Service require authorization issued by the relevant authority as long as the specific authority or applicable regulation states that no such authorization is required. This authorization, as defined in EGNOS Mission Requirements Document[1], is subjected to specified operational conditions and limitations, existence of published navigation procedure and to the certification of the on board navigation equipment.
Consequently, an aircraft or operator will need to be subscriber of the required Service Level Agreement in order to get a service guarantee from the EGNOS Service Provider on the EGNOS Safety of Life Service. In addition, the service guarantee will only be applicable within the Safety of Life Service area.
EGNOS SoL for Aviation
The SoL Service is intended to support a wide range of transport domains. Nevertheless, the main objective of the EGNOS SoL service is to support civil aviation operations down to Localizer Performance with Vertical guidance (LPV). This means that the service is compliant with aviation Approach with Vertical Guidance (APV-I) requirements defined in the ICAO Standard and Recommended Practices (SARPs) for SBAS[2] as expressed in EGNOS Safety of Life Service Definition Document.[3]
At the date of this publication, only the aviation domain has specific service requirements, as well as certification and individual authorization procedures developed and implemented.
On the 2nd March 2011, the European Satellite Services Provider (ESSP)[4] declared[5] the Safety-of-Life (SoL) signal officially available for aviation with the authorization of the European Commission (EC) to provide the service. At this point message type 0 (MT0) that used to transmit the same contents as a regular MT2 message before certification of EGNOS for civil aviation was removed.
The aviation user, as mentioned in the Terms and Conditions definition, is subjected to the specific Working Agreements between ESSP and Air Navigation Service Providers (ANSPs) as stated by the EC Single European Sky regulation.[6]
In this context, the EGNOS SoL Service is only guaranteed for use in aviation, for all phases of flight within the corresponding EGNOS SoL Service area, to aviation users. Aviation users, as referred in the EGNOS SoL Service Definition Document,[7] are namely:
- Airspace users, as defined in the Single European Sky framework Regulation[8], equipped with an EGNOS certified receiver and located within the appropriate EGNOS SoL Service area corresponding to the phase of flight in which the EGNOS SoL Service is used.
- Certified Air Navigation Service Providers having signed a working agreement with ESSP SAS that is valid at the moment of the use of the EGNOS SoL Service.
The EGNOS SoL Service will be provided for a minimum period of 20 years and any significant change in the service will be notified at least six years in advance.'
Safety of Life Requirements
Benefits for Civil Aviation
Notes
References
- ^ EGNOS Mission Requirements Document, version 2.0, 8th May 2006, Galileo Joint Undertaking
- ^ Minimum Operational Performance Standards for Global Positioning System/Wide Area Augmentation System Airbone Equipment
- ^ EGNOS Safety of Life Service Definition Document
- ^ European Satellite Services Provider
- ^ EGNOS Safety of Life Service Start Official declaration
- ^ Regulation (EC) No 549/2004 of the European Parliament and of the Council of 10 March 2004 laying down the framework for the creation of the single European sky
- ^ Cite error: Invalid
<ref>tag; no text was provided for refs namedEGNOS SoL SDD - ^ Regulation (EC) No 549/2004 of the European Parliament and of the Council of 10th March 2004 laying down the framework for the creation of the single European sky (the framework Regulation).