the european organisation for the safety of air navigation aixm 4.5 to 5.1 mapping razvan guleac...

The European Organisation for the Safety of Air Navigation

AIXM 4.5 to 5.1 Mapping

Razvan Guleac

DNM/COO/NOM/ADM

AIXM 5.1 Seminar

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Mapping Guidelines

• Made available on www.aixm.aero FEB 2010

• Finalised DEC 2010

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Mapping Diagrams – AD_HP Usage

AICM 4.5 AIXM 5.1

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EAD AIXM 4.5 to 5.1 Mapping

• Based on a Mapping Specification: EAD/DOC – ECR57T

• Structure:

• Mapping tables• What goes where

• Mapping rules• How

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Mapping Tables

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Types of Mapping

• One (AICM 4.5) Entity -> One (AIXM 5.1) Feature• AUTH_FOR_AIRSPACE -> AuthorityForAirspace

• One (AICM 4.5) Entity -> Several (AIXM 5.1) Features• DME -> DME & Navaid

• Several (AICM 4.5) Entities -> One (AIXM 5.1) Feature• ENR_ROUTE_RTE & RTE_SEG -> Route

• One (AICM 4.5) Entity -> One (AIXM 5.1) Object• AIRCRAFT_CLASS -> AircraftCharacteristics

• One (AICM 4.5) Attribute / Relationship -> One (AIXM 5.1) Property• CODE_TYPE -> type

• One (AICM 4.5) Attribute -> Several (AIXM 5.1) Properties• EN_ROUTE_RTE TXT_DESIG -> Route designatorPrefix,

designatorSecondLetter, designatorNumber

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Route / NAVAID Mapping – AICM 4.5

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Route / Navaid Mapping – AIXM 5.1

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NAVAID MappingDME

NDB

ILS

ILS_GP

ILS_LLZ

MLS_AZIMUTH

MLS_ELEVATION

VOR

MLS

TACAN

MKR

VOR

Navaid

NavaidComponent

NavaidOperationalStatus

Localizer

MarkerBeacon

Elevation

Glidepath

Azimuth

NavaidEquipmentMonitoring

AuthorityForNavaidEquipement

TACAN

DME

NDB

ElevatedPoint

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DME Mapping

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Mapping Rules

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AIXM 5.1 Geometry

• Based on a geometry subset of GML

• Curves: • ArcByCenterPoint, CircleByCenterPoint, ArcString, Arc, Circle,

GeodesicString, Geodesic, LineStringSegment

• Surfaces:• PolygonPatch, Rectangle, Triangle

• Complemented by the OGC Aviation Domain Working Group discussion paper: Use of GML in Aeronautical Data• ArcByCenterPoint – reference system, direction of angle measurement• Rhumb Line (Loxodrome) – GML geodesic segment

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Geometry Mapping – LAT/LONG/Datum

gml:pos

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AIRSPACE MappingCODE_DATUM = WGE (WGS84)

startAngle<endAngle

CWA

startAngle>endAngle

CCA

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AIRSPACE_VERTEX

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SDO Compatibility – New Mandatory Attributes

• SDO (AICM 4.5) Business Rule for CWA & CCA:

• Qualify a new mandatory attribute: VAL_RADIUS_ARC

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SDO Compatibility – New Plausibility Check

• 1% Plausibility Rule extended: • Calculated distance [VERTEX – CENTRE] versus

VAL_RADIUS_ARC

NO_SEQ = 1

NO_SEQ = 2

Current: ABS(D1-D1)/D1<=1%

D1

D2

NEW: ABS(D1-R)/D1<=1%

R

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EAD AIXM 5.1 Airspace

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Mapping Impact on AIXM 5.1 Temporality

• Entity to Object Mapping• Two AICM 4.5 entities map into an AIXM 5.1 feature and an

Object• E.g.: ORG_AUTH & ORG_AUTH_ASSOC

• Cancel Future Committed Data• EAD SDO Rule: One slot committed with an earlier date

cancels any future committed data version• Same principles to be applied in AIXM 5.1 implementation

• Withdrawal of an AICM 4.5 Entity mapping into an AIXM 5.1 Object• The Object is withdrawn, but the feature still exists

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ORG_AUTH Mapping

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EAD AIXM 5.1 Temporality Implementation

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SDO Data Migration - OBSTACLES

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OBSTACLE Mapping - Type

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VerticalStructure - type

type = TOWER VerticalStructure type = OTHER:SEE_NOTE_AIXM_4_5_MAPPING

note = Wind farm 80 wind turbines within area 553011.52N…

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