The properties of the Runway Direction subject listed This page contains the mapping for the following data items as defined in PANS-AIM, chapter 5.3.3.1.1
i) FATO (designation, length, width, threshold point);
These properties, which are considered as minimum for the AIP data set are mapped to the following main AIXM 5 features:
%20FATO%20-%20Mapping.png?version=3&modificationDate=1491236177000&cacheVersion=1&api=v2)
...
//aixm:RunwayCentrelinePoint/axim:role="THR"/aixm:location/aixm:ElevatedPoint
|
//aixm:RunwayCentrelinePoint/axim:role="THR"/aixm:location/aixm:ElevatedPoint/aixm:horizontalAccuracy
...
| Note | ||
|---|---|---|
| ||
In AIXM 5, the Runway and its associated classes are used to encode both Runway and FATO. The Runway |
...
.typeattribute is used to define if the record is an instance of a Runway or a FATO. Hence, a FATO has to be encoded as Runway with type equal-to ‘FATO’. |
| PANS-AIM | Description (PANS-AIM) | AIXM 5 | Definition (AIXM 5.1.1) | Remarks |
|---|---|---|---|---|
| Threshold point | The beginning of that portion of the FATO usable for landing. | RunwayCentrelinePoint.role equal-to'THR' | RunwayCentrelinePoint: An operationally significant position on the centre line of a runway direction. A typical example is the runway threshold. role: The role of an operationally significant position on the centre line of a runway direction. | |
| Threshold point - Position | Geographical location of FATO threshold point | RunwayCentrelinePoint.location.ElevatedPoint and RunwayCentrelinePoint.location.ElevatedPoint.horizontalAccuracy | 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 point - Elevation | Elevation of the FATO threshold |
//aixm:RunwayCentrelinePoint/axim:role="THR"/aixm:location/aixm:ElevatedPoint/aixm:elevation
|
//aixm:RunwayCentrelinePoint/axim:role="THR"/aixm:location/aixm:ElevatedPoint/aixm:verticalAccuracy
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. | The verticalAccurracy encoded refers to both the |
| elevation |
| and the |
| geoidUndulation |
| . | |
| Threshold point - Geoid undulation | WGS-84 Geoid undulation at FATO threshold position |
//aixm:RunwayCentrelinePoint/axim:role="THR"/aixm:location/aixm:ElevatedPoint/aixm:geoidUndulation
|
//aixm:RunwayCentrelinePoint/axim:role="THR"/aixm:location/aixm:ElevatedPoint/aixm:verticalAccuracy
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. | According to ICAO Annex 14, Volume II
| |||||
| Designation | The full textual designator of the landing and take-off area. |
Runway.designator | Runway: A defined rectangular area on a land aerodrome/heliport prepared for the landing and take-off of aircraft. Note: this includes the concept of Final Approach and Take-Off Area (FATO) for helicopters. designator: The designator of a runway, used to uniquely identify it at an aerodrome/heliport. | |
| Length | The longitudinal extent of FATO |
Runway.nominalLength |
and |
Runway.lengthAccuracy | nominalLength: The declared longitudinal extent of the runway for operational (performance) calculations. lengthAccuracy: Accuracy of the value of the physical length of the runway. | |
| Width | The transversal extent of FATO |
| Runway.nominalWidth | nominalWidth: The declared transversal extent of the runway for operational (performance) calculations. | AIXM 5 provides a |
Runway.widthAccuracy attribute. But accuracy is not specified for the width of a FATO in PANS-AIM. (For "TLOF width" and "Runway width" PANS-AIM defines an accuracy.) |