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j) TLOF (designator, centre point, length, width, surface type);

These properties, which are considered as minimum AIP data set for TLOF are mapped to the following main AIXM 5 features:

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PANS-AIMDescription (PANS-AIM)AIXM 5Remarks
DesignatorThe full textual designator of TLOFTouchDownLiftOff.designator
Centre point - PositionGeographical location of TLOF threshold point

TouchDownLiftOff.aimingPoint.ElevatedPoint

TouchDownLiftOff.aimingPoint.ElevatedPoint.horizontalAccuracy


Centre point - ElevationElevation of the TLOF threshold

TouchDownLiftOff.aimingPoint.ElevatedPoint.elevation

TouchDownLiftOff.aimingPoint.ElevatedPoint.verticalAccuracy

The verticalAccurracy encoded refers to both the elevation and the geoidUndulation.
Centre point - Geoid undulationWGS-84 Geoid undulation TLOF centre point position

TouchDownLiftOff.aimingPoint.ElevatedPoint.geoidUndulation

TouchDownLiftOff.aimingPoint.ElevatedPoint.horizontalAccuracy

The verticalAccurracy encoded refers to both the elevation and the geoidUndulation.
LengthThe longitudinal extent of TLOFTouchDownLiftOff.length
Warning
titleAIXM issue

AIXM 5 does not provide a "lengthAccuracy" attribute for the TLOF feature. PANS-AIM defines an accuracy for the TLOF length.

WidthThe transversal extent of TLOFTouchDownLiftOff.width
Warning
titleAIXM issue

AIXM 5 does not provide a "widthAccuracy" attribute for the TLOF feature. PANS-AIM defines an accuracy for the TLOF width.

Surface typeThe surface type of TLOFTouchDownLiftOffTouchDownLiftOff.surfaceProperties.SurfaceCharacteristics.composition