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According to PANS-AIM, the length of a route segment shall be provided as geodesic distance.
PANS-AIM Appendix 1 also defines accuracy values the length. Also for the tracks but only for terminal arrival departure.
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AIXM 5.1(.1) does not provide a dedicated accuracy attribute for length. It can only be encoded using a corresponding annotation for the length attribute. |
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Unclear why PANS-AIM defines accuracy values for track in Table A1-3 ATS and other routes data if it is only applicable for terminal arrival departure. |
Lateral Limits
For "ENR 3.1 Lower ATS routes" and "ENR 3.2 Upper ATS routes", PANS-AIM requires the provision of lateral limits.
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| Identifier | Data Encoding Rule | Justification | Data Verification Rule (UID) | Remarks | |||||
|---|---|---|---|---|---|---|---|---|---|
| RSG-101 | RouteSegment.navigationType is mandatory. | Minimum AIP data set | TBD |
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| RSG-102 | RouteSegment.start is mandatory. | Minimum AIP data set | TBD | ||||||
| RSG-103 | RouteSegment.end is mandatory. | Minimum AIP data set | TBD | ||||||
| RSG-104 | RouteSegment.start.EnRouteSegmentPoint.reportingATC is mandatory. | Minimum AIP data set | TBD | ||||||
| RSG-105 | RouteSegment.end.EnRouteSegmentPoint.reportingATC is mandatory. | Minimum AIP data set | TBD | ||||||
| RSG-106 | Either RouteSegment.trueTrack or RouteSegment.magneticTrack shall be provided where RouteSegment.availability.RouteAvailability.direction value equal-to ‘'FORWARD''. | Minimum AIP data set | TBD | Or shall the track always be specified independent of the route segment availability? Is it possible that a route segment is available just backward | |||||
| RSG-107 | Either RouteSegment.reverseTrueTrack or RouteSegment.reverseMagneticTrack shall be provided where RouteSegment.availability.RouteAvailability.direction value equal-to ‘'BACKWARD''. | Minimum AIP data set | TBD | ||||||
| RSG-108 | RouteSegment.length is mandatory. | Minimum AIP data setTBD | TBD | ||||||
| RSG-902 | The accuracy for the length value shall be provided using an annotation for the length attribute. | PANS-AIM | TBD | AIXM 5.1(.1) does not provide a dedicated accuracy attribute. | |||||
| RSG-109 | RouteSegment.pathType is mandatory. | Minimum AIP data set | TBD | ||||||
| RSG-110 | The RouteSegment.pathType shall have value equal-to 'GDS'. | PANS-AIM ENR 3 | TBD | Only in case path of the route segment is really a geodesic line. | |||||
| RSG-111 | The accuracy of the length of the route segment shall be encoded as RouteSegment.annotation.Note.propertyNamevalue equal-to 'length' | Minimum AIP data set | TBD | ||||||
| RSG-112 | RouteSegment.upperLimit is mandatory. | Minimum AIP data set | TBD | ||||||
| RSG-113 | RouteSegment.upperLimitReference is mandatory. | data consistency | TBD | ||||||
| RSG-114 | Either RouteSegment.lowerLimit or RouteSegment.minimumEnrouteAltitude shall be provided. | Minimum AIP data set | TBD | ||||||
| If RouteSegment.lowerLimit is specified, then RouteSegment.lowerLimitReference is mandatory. | Data consistency | TBD | |||||||
| RSG-115 | RouteSegment.minimumObstacleClearanceAltitude is mandatory for ENR 3.1 Lower ATS Routes. | Minimum AIP data set | TBD |
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| RSG-116 | RouteSegment.widthLeft and RouteSegment.widthRight is mandatory for ENR 3.1 Lower ATS Routes and ENR 3.2 Upper ATS Routes. | PANS-AIM ENR 3.1 & ENR 3.2 | TBD | ||||||
| RSG -901 | RouteSegment.widthLeft and RouteSegment.widthRight shall have the same uom. | Data consistancy | TBD | ||||||
| RSG-117 | RouteSegment.requiredNavigationPerformance is mandatory. | Minimum AIP data set | TBD |
See also rule RSG-101 | |||||
| RSG-118 | If the uomDistanceVerticalType has the value ''FL'' or ''SM'', then the attribute upperLimitReference must have the value ''STD'' (standard pressure). | Data consistency | TBD | ||||||
| RSG-119 | When translated to use the same unit of measurement and the same vertical reference, lowerLimit must be lower than or equal to upperLimit. | Data consistency | TBD | ||||||
| RSG-120 | If the uomDistanceVerticalType has the value ''FL'' or ''SM'', then the attribute lowerLimitReference must have the value ''STD'' (standard pressure). | Data consistency | TBD | ||||||
| RSG-121 | The EnRouteSegmentPoint.pointChoice used as RouteSegment.start or RouteSegment.start may not be other than a DesignatedPoint or a Navaid or an AirportHeliport. | Data consistency | TBD | ||||||
| RSG-901 | Two consecutive route segments (of the same Route) should have vertical limits that, if not overlapping, should not be further away than 1000 FT. For example, if segment 1 is FL245 to FL295 and segment 2 is FL310 to FL490, (this rule will need to be adjusted based on operational experience).
| EAD Rule | TBD | ||||||
| RSG-902 | The angle between two consecutive segments of the same route cannot exceed 90 degrees.
| EAD Rule | TBD | ||||||
| RSG-903 | At the border (defined as a buffer area of 2 km on each side) between two areas of responsibility, route segments should be continued by route segments of the same or another Route. | EAD Rule | TBD |
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| RSG-904 | Route segments of the same Route should be consecutive (no gaps): not more than two significant points should be either the start or the end of a single route segment. | EAD Rule | TBD |
According to the rule definition the rule is violated, because four significant points "KPT", "TGO", "KRH" and "ECCHO" are used only once, either as start or end point of a route segment. | |||||
| RSG-905 | Route segments of the same Route should be consecutive: no segment should be described in the opposite order of significant points (start instead of end and vice-versa) compared to the adjacent segments. | EAD Rule | TBD |
In the given example the rule is violated, because route segment "ECCHO - ANEKI" is described in the opposite order of the adjacent segments. | |||||
| RSG-906 | Route segments of the same Route should be consecutive (no multiple branches): no significant point should appear on 3 or more segments, either as start or as end point. | EAD Rule | TBD |
According to the rule definition the rule is violated, because ANEKI appears on three route segments. Subsequently this results in multiple branches; "ANEKI - ECCHO" and ANEKI - RUDUS". | |||||
| RSG-907 | The position of the SignificantPoint used as the beginning of the RouteSegment must be separated by at least 30m (1 sec of arc) from the position of the SignificantPoint used as the end of the RouteSegment.
| EAD Rule | TBD | ||||||
| RSG-908 | widthLeft and widthRight must have a value between 0.5 NM and 10 NM. | EAD Rule | TBD |
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| RSG-909 | The value of EnRouteSegmentPoint.reportingATC for RouteSegment.start and RouteSegment.end of any two consecutive segments of the same route must be consistent. | EAD Rule | TBD | In case of FIR BRDY points there are situations when the source data of the concerned neighbouring countries do not match. For example on routes crossing the border between Latvia and Sweden, the report at the border points is specified 'on request' in the Sweden AIP and as 'compulsory' in the Latvia AIP. | |||||
| RSG-910 | The difference between length and the calculated length of the related RouteSegment cannot exceed 5 KM.
| EAD Rule | TBD |
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| RSG-911 | The difference between Initial trueTrack and the calculated initial true track of the related RouteSegment cannot exceed 2 degrees. The difference between reverseTrueTrack and the calculated reverse initial true track of the related RouteSegment cannot exceed 2 degrees.
| EAD Rule | TBD |
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| No. | Description | XPath Expression |
|---|---|---|
| RSG-EX-101 | Route Segments | //aixm:RouteSegmentRouteSegmentTimeSlice[@gml:id='RSG_UA4_BARIM_WOB'] | //aixm:DesignatedPointTimeSlice //aixm:NavaidTimeSlice[ |