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Introduction
For Route Segment, PANS-AIM requires as part of the minimum data set information about the navigation specification and required navigation performance.
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| There are several open questions/issues about the encoding of this information, regarding both PANS-AIM and AIXM 5. Thus, this page has only limited coding guidelines (work around) and besides this is mainly used to highlight the issues detected. |
For the AIP data set PANS-AIM requires 2 properties related to Performance Based Navigation (PBN) of a route segment.
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Indication on the sensor requirements including any navigation specification limitations
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| title | PANS-AIM Issue |
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ICAO Doc 9613 (PBN Manual)
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AIXM 5.1.1 provides two attributes regarding navigation specifications for a RouteSegment. Both seem to be insufficient to code the designation of the PBN specification.
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As a workaround, until the open PBN issue are clarified within the AIXM CCB, the following coding is proposed:
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This has been raised as an issue to the AIXM CCB to be considered for AIXM 5.2. For the status of the Change Proposal see AIXM-135 Proposed Workaround for AIXM5.1(.1): Code for navigationType 'RNAV' or 'OTHER:RNP' and for requiredNavigationPerformance the navigation acurracy, e.g. '5' or '4'. The two concatenated values would result in the corresponding RNAV or RNP navigation specification, e.g. RNAV 10 or RNP 4, according to the values defined in ICAO Doc 9613 (PBN Manual). |
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Note: This workaround does not work for one PBN navigation specifications applied for en-route: The Advanced RNP (A-RNP). For this particular case an corresponding Note may be provided. |
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In an AIP this information is published in the ENR 3 section.
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Coding rules for PBN Requirements for Route Segment
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Coding Examples
Coding examples can be found in the DONLON AIXM 5.1.1 AIP data set file AIP Data Set - Specimen (DONLON).
| No. | Description | XPath Expression |
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| RSG-EX-01 | Route segment with navigation specification | //aixm:RouteSegmentTimeSlice[@gml:id ='RSG_UA4_BARIM_WOB'] |
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