This is a specialization of the Point class and it inherits all attributes and associations of that class.

Name	Data Type	Definition
elevation	ValDistanceVerticalType	The vertical distance of the point measured from Mean Sea Level (MSL).
geoidUndulation	ValDistanceSignedType	The distance of the geoid above (positive) or below (negative) the mathematical reference ellipsoid at the location of the point.
verticalDatum	CodeVerticalDatumType	The set of reference points or a mathematical model of the Earth's surface (a datum) against which vertical position measurements are made as basis for measuring elevations.
verticalAccuracy	ValDistanceType	The difference between the recorded elevation of a feature and its true elevation referenced to the same vertical datum expressed as a linear error at 95 percent probability.
horizontalAccuracy	ValDistanceType	The difference between the recorded horizontal coordinates of a feature and its true position referenced to the same geodetic datum expressed as a circular error at 95 percent probability.	Inherited from Point

Association	Multiplicity	Role	To	Role description
hasAnnotations	0..*	annotation	Note		Inherited from Point

From	Association	Multiplicity	Role	To	Role description
RunwayCentrelinePoint	isLocatedAt	0..1	location	Geographical position of the runway centreline point.
ArrestingGearExtent	isPoint	0..1	pointExtent	ArrestGearExtent is a point.
RunwayVisualRange	hasPosition	0..1	location	Location of the Runway Visual Range.
TaxiHoldingPosition	isLocatedAt	0..1	location	The location of the TaxiHoldingPosition.
AircraftStand	hasPosition	0..1	location	Location of the gatestand.
TouchDownLiftOff	hasAimingPoint	0..1	aimingPoint	Aiming point for the TouchDownLiftOff zone.
MarkingExtent	hasPointExtent	0..1	location	Marking located at a point.
MarkingBuoy	isLocatedAt	0..1	location	Location of the MarkingBuoy.
AirportHeliport	hasReferencePoint	0..1	ARP	Airport reference point.
SurveyControlPoint	hasPosition	0..1	location	Location of the survey control point.
Reflector	isPlacedAt	0..1	touchdownReflector	The geospatial location of the Touchdown Reflector.
RadarEquipment	isPlacedAt	0..1	location	The graphical location of the component
RadarSystem	isNavigableBy	0..1	location	Graphical location of the radar (system). This should be the same location as the equipment that provides navigability.
LightElement	hasPosition	0..1	location	Light element location.
Service	isProvidedFrom	0..1	location	The location from where the service is provided.
RadioCommunicationChannel	transmitsFrom	0..*	location	The location from where the radio are transmitted.
Navaid	isNavigableBy	0..1	location	Graphical location of the navaid (system). This should be the same location as the equipment that provides navigability
NavaidEquipment	isPlacedAt	0..1	location	the graphical location of the component
NavigationSystemCheckpoint	isDeterminedBy	0..1	position	The position of the check point
SpecialNavigationStation	isLocatedAt	0..1	position	The graphical point of the special navigation station.
AeronauticalGroundLight	hasPosition	0..1	location	The location of the ground light.
Unit	hasPosition	0..1	position	The geographical point of the Unit.
VerticalStructurePartGeometry	hasPointShape	0..1	location	Location of the vertical structure.
DesignatedPoint	isLocatedAt	0..1	location	The geographical location of the designated point.	Inherited from Point
SignificantPoint		0..1	position	An unnamed point designated only with a latitude/longitude.	Inherited from Point

1 - AirportHeliport , 1 - Geometry , 1 - GroundLight , 1 - Navaid , 1 - Seaplanes , 1 - Service Overview , 1 - Surface Lighting , 1 - Surface Marking , 1 - Surveillance System , 1 - TLOF , 1 - Vertical Structures , 1- LightElement , 2 - Aircraft Stands , 2 - Communication Channel , 2 - Runway Direction , 2 - Surveillance Equipment , 2 - Unit , 3 - Runway Operational Point , 3 - Taxi Holding Position , 4 - Special Navigation System , 5 - Navigation System Checkpoint , 5 - Runway Visual Range