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Terrain and Obstacle Data (Phase 2 P-13 P-14)
The requirements for electronic Terrain and Obstacle Data (TOD) are listed in ICAO Annex 15 (Aeronautical Information Services), Chapter 10.
The requirements are for a State to ensure the availability of electronic TOD, in accordance with stringent numerical requirements established for 4 distinct Areas of the State territory, over which AIS is provided. These areas are:
- Area 1: the entire territory of a State.
- Area 2: within the vicinity of an aerodrome.
- Area 3: the area bordering an aerodrome movement area.
- Area 4: the radio altimeter operating area runway, category II or III.
A Terrain and Obstacle Data Working Group (TOD WG) was established in 2006. The main focus of the group is to support ECAC States with the implementation the requirements for Terrain and Obstacles according to ICAO Annex 15, Chapter 10. All documentation concerning the meetings of this group is available on OneSky Teams.
The TOD Manual has been developed to provides assistance to those tasked with implementing electronic terrain and obstacle data (eTOD). It is intended to be used by those bodies involved in the origination, processing and provision of electronic terrain and obstacle data, from the point at which the need for origination is identified, through to the point when the State makes it available in accordance with the requirements of ICAO Annex 15. The current edition is 2.0 which was released in the autumn of 2011.
The TOD manual is a living document, updated by the TOD WG as experience grows during implementation. In order to ensure that this document can continue to meet stakeholder needs, it is important that comments on the document and any issues identified as not being adequately addressed are brought to the attention of EUROCONTROL.
The implementation of the TOD requirements as stated by ICAO Annex 15 requires the collection and survey of a relatively large amount of terrain and obstacle data. In order to support Members States in the production and management of this data, EUROCONTROL has developed the TOD Manual. In order to further consolidate this manual, EUROCONTROL commissioned a feasibility study in order to evaluate the TOD Manual in view of putting eTOD into practice. The performed tasks, findings and recommendations (made by a consortium of French and Swiss ANSP's and Regulators) have been summarized in the Pilot Study Report.