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A specified geographical location used in defining an ATS route or the flight path of an aircraft and for other navigation and ATS purposes.
Note.— There are three categories of significant points: ground-based navigation aid, intersection and waypoint. In the context of this definition, intersection is a significant point expressed as radials, bearings and/or distances from ground-based navigation aids.
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The AIXM definition for intersection is not in line with the one of ANNEX 11. CodeReferenceRoleBaseType contains the value 'INTERSECTION', which is defined as follows:
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The term significant point is not defined In ANNEX 15 or nor PANS-AIM. However, the terms significant point and designated significant points occur in several sections, especially in "ENR 3. ATS ROUTES" to define the route.
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A geographical location not marked by the site of a radio navigation aid, used in defining an ATS route, the flight path of an aircraft or for other navigation or ATS purposes.
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| title | AIXM 5.1.1 issue |
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In AIXM, a DesignatedPoint is a specialisation of a SignificantPoint.
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In Appendix 1 of PANS-OPS (Aeronautical Data Catalogue) the Waypoint subject is part of the ATS Route section, presuming that the term is applicable for all kind of ATS routes and not only RNAV routes!
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| title | PANS-AIM issue |
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In AIXM, the class DesignatedPoint is used to model points that have an official (5 letter) designator, have specified coordinates and do not mark the position of a Navaid. This includes, but is not limited to, "waypoints" as many designated points are used for purposes other than defining a RNAV route.
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