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| PANS-AIM | Description (PANS-AIM) | AIXM 5 | Definition (AIXM 5.1.1) | Remarks | |||||
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| Designator | The full textual designator of the landing and take-off direction. Examples: 27, 35L, 01R. | RunwayDirection.designator | RunwayDirection: One of the two landing and take-off directions of a runway for which attributes like Take-off Run Available (TORA), Take-off Distance Available (TODA), Landing Distance Available (LDA), etc. may be defined. designator: A designator for one of the two possible landing and/or take-off directions of a runway or Final Approach and Take-off Area (FATO). | ||||||
| True bearing | The true bearing of the runway. | RunwayDirection.designator.trueBearing and RunwayDirection.designator.trueBearingAccuracy | trueBearing: The accuracy of the measured angle between the runway direction and True North at a given position. trueBearingAccuracy: The measured angle between the runway direction and Magnetic North at a given position. | ||||||
| Threshold - Position | Geographical location for runway threshold | RunwayCentrelinePoint.location.ElevatedPoint and RunwayCentrelinePoint.location.ElevatedPoint.horizontalAccuracy | RunwayCentrelinePoint: An operationally significant position on the centre line of a runway direction. A typical example is the runway threshold. location: Geographical position of the runway centreline point. horizontalAccuracy:The difference between the recorded horizontal coordinates of a point and its true position referenced to the same geodetic datum expressed as a circular error at 95 percent probability. | ||||||
| Threshold - Elevation | Elevation of the runway threshold | RunwayCentrelinePoint.location.ElevatedPoint.elevation and RunwayCentrelinePoint.location.ElevatedPoint.verticalAccuracy | elevation: The vertical distance of the point measured from Mean Sea Level (MSL). verticalAccuracy: The difference between the recorded elevation of a point and its true elevation referenced to the same vertical datum expressed as a linear error at 95 percent probability. | ||||||
| Threshold - Geoid undulation | WGS-84 Geoid undulation at runway threshold position | RunwayCentrelinePoint.location.ElevatedPoint.geoidUndulation and RunwayCentrelinePoint.location.ElevatedPoint.verticalAccuracy | geoidUndulation: The distance of the geoid above (positive) or below (negative) the mathematical reference ellipsoid at the location of the point. | ICAO Annex Annex 14 requires the Geoid undulation of the threshold for precision approach runways and for non-precision approaches runways of aerodromes used by international civil aviation.
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| Threshold - Type | The indication if the threshold is displaced/ not displaced. A displaced threshold is not located at the extremity of a runway. | RunwayCentrelinePoint.role | role: The role of an operationally significant position on the centre line of a runway direction. | When encoded role equal to 'THR' the threshold is not displaced. When encoded role equal to 'DISTHR' the threshold is displaced. | |||||
| Threshold - Displacement | Distance of displaced threshold Note: If displaced threshold | RunwayCentrelinePoint.roleequal-to 'DISTHR' .associatedDeclaredDistance.RunwayDeclaredDistance.type equal-to 'DTHR' .declaredValue.RunwayDeclaredDistanceValue.distance and RunwayCentrelinePoint.roleequal-to 'DISTHR' .associatedDeclaredDistance.RunwayDeclaredDistance.type equal to 'DTHR' .declaredValue.RunwayDeclaredDistanceValue.distanceAccuracy | associatedDeclaredDistance: The declared distance marked by the RunwayCentrelinePoint. type: The type of a conventional operational distance declared for a runway direction. declaredValue: Schedule of validity for the Declared Distances. distance: The conventional operational distance declared for a runway direction. distanceAccuracy: The accuracy of the value of a conventional operational distance declared for a runway direction. |
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| Declared distances - TORA | Take-off run available - The length of runway declared available and suitable for the ground run of an aeroplane taking off. | RunwayCentrelinePoint.role.associatedDeclaredDistance.RunwayDeclaredDistance.type equal-to 'TORA' .declaredValue.RunwayDeclaredDistanceValue.distance and RunwayCentrelinePoint.role.associatedDeclaredDistance.RunwayDeclaredDistance.type equal-to 'TORA' .declaredValue.RunwayDeclaredDistanceValue.distanceAccuracy | see above | ||||||
| Declared distances - TODA | Take-off distance available - The length of the take-off run available plus the length of the clearway, if provided. | RunwayCentrelinePoint.role.associatedDeclaredDistance.RunwayDeclaredDistance.type equal-to 'TODA' .declaredValue.RunwayDeclaredDistanceValue.distance and RunwayCentrelinePoint.role.associatedDeclaredDistance.RunwayDeclaredDistance.type equal-to 'TODA' .declaredValue.RunwayDeclaredDistanceValue.distanceAccuracy | see above | ||||||
| Declared distances - ASDA | Accelerate-stop distance available - The length of the take-off run available plus the length of the stopway, if provided. | RunwayCentrelinePoint.role.associatedDeclaredDistance.RunwayDeclaredDistance.type equal-to 'ASDA' .declaredValue.RunwayDeclaredDistanceValue.distance and RunwayCentrelinePoint.role.associatedDeclaredDistance.RunwayDeclaredDistance.type equal-to 'ASDA' .declaredValue.RunwayDeclaredDistanceValue.distanceAccuracy | see above | RunwayCentrelinePoint.role shall be 'START_RUN' | |||||
| Declared distances - LDA | Landing distance available - The length of runway which is declared available and suitable for the ground run of an aeroplane landing. | RunwayCentrelinePoint.role.associatedDeclaredDistance.RunwayDeclaredDistance.type equal-to 'LDA' .declaredValue.RunwayDeclaredDistanceValue.distance and RunwayCentrelinePoint.role.associatedDeclaredDistance.RunwayDeclaredDistance.type equal-to 'LDA' .declaredValue.RunwayDeclaredDistanceValue.distanceAccuracy | see above | RunwayCentrelinePoint/role shall be either 'THR' or 'DISTHR'. | |||||
| Declared distances - Remarks | Remarks including runway entry or start point where alternative reduced declared distances have been declared | RunwayCentrelinePoint.associatedDeclaredDistance .RunwayDeclaredDistance.annotation, or RunwayCentrelinePoint.associatedDeclaredDistance .RunwayDeclaredDistance.declaredValue.RunwayDeclaredDistanceValue.annotation | The Note may be provided for the appropriate declared distance property or class. |
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