v1.0.6

ArrestingGearLocation encoding

Owned by WILSON Scott
Last updated: 2021 Mar 31

This section provides ‘ArrestingGearLocation’ feature data encoding guidance.

General

AMD data encoding can start when the necessary geographic information, aeronautical information and basic knowledge regarding the structure of created feature is available.

From the geographical point of view, the ArrestingGear represents a geographical location of the arresting gear cable across the runway – Curve. For the ArrestingGearLocation two or more points shall be measured. The key attributes are the longitude, latitude and the elevation in reference with WGS-84. In the next part the process of converting the geographical information into the GML form thus into geometry information is described.

Based on Aeronatical Data Catalogue the required type of geometry for feature ArrestingGearLocation is 'Line'.  The definition of Curve can be found in the Table A1-9 Data types of the Aeronautical Data Catalogue.

AMD encoding

AIXM 5.1

ED-99 feature ArrestingGearLocation is mapped to the AIXM 5.1 as feature ArrestingGear.

Geometry

In the AIXM 5.1 the geometry of the ArrestingGear can be point, curve or polygon, but in case of this feature the right geometry is curve encoded as object ElevatedCurve.

For more information regarding AIXM 5.1 Geometry encoding follow 'AIXM data coding'.

GML considerations:

AIXM 5.1 is based on GML. Hence, obtained geographical locations shall be transferred into a GML geometry object GeodesicString.

Figure 1 : ArrestingGearLocation

Feature ArrestingGear shall be established in accordance with coding rules and requirements listed in AIXM 5.1 Temporality Model.

AIXM 5.1 features

ArrestingGearLocation is encoded to the AIXM 5.1 as one feature ArrestingGear.

All associations are shown in the UML Diagram (see below).

ArrestingGear

http://aixm.aero/sites/aixm.aero/files/imce/AIXM51HTML/AIXM/Class_ArrestingGear.html

UML Diagram (Runway Direction)

http://aixm.aero/sites/aixm.aero/files/imce/AIXM51HTML/AIXM/Diagram_RunwayDirection.html

Content of example

This is a ficticious example. No feature was present at the aerodrome used.

The following AMD properties are not covered in the AIXM 5.1. coding example: vres, hres, integr. These are covered by an AIXM 5.1. extension.

Coding example - Structure of message

<AIXMBasicMessage  ...>
  <aixm:messageMetadata>
  </aixm:messageMetadata>
  <hasMember>
    <aixm:AirportHeliport gml:id="uuid.0b7a2688-ab95-47e6-82c2-23fe321c4a48">
  </hasMember>
  <hasMember>
    <aixm:ArrestingGear gml:id="uuid.fd16b480-8dd2-466b-a189-320afd09d1ce">
  </hasMember>
  <hasMember>
    <aixm:Runway gml:id="uuid.de77ab7f-6bb1-43b4-817e-ce4465deb3a3">
  </hasMember>
  <hasMember>
    <aixm:RunwayDirection gml:id="uuid.15a02d30-8723-45d4-bd69-07e8b44a2ce2">
  </hasMember>
</AIXMBasicMessage>

Coding example - ArrestingGearLocation

  <hasMember>
    <aixm:ArrestingGear gml:id="uuid.fd16b480-8dd2-466b-a189-320afd09d1ce">
      <gml:identifier codeSpace="urn:uuid:">fd16b480-8dd2-466b-a189-320afd09d1ce</gml:identifier>
      <aixm:timeSlice>
        <aixm:ArrestingGearTimeSlice gml:id="uuid.a9bd769f-9965-411d-a21e-df17bd9abb9d">
          <gml:validTime>
            <gml:TimePeriod gml:id="uuid.a8c7c55d-4204-4bf4-a08b-36a23e0d1f11">
              <gml:beginPosition>2020-09-01T00:00:00Z</gml:beginPosition>
              <gml:endPosition indeterminatePosition="unknown" />
            </gml:TimePeriod>
          </gml:validTime>
          <aixm:interpretation>BASELINE</aixm:interpretation>
          <aixm:sequenceNumber>1</aixm:sequenceNumber>
          <aixm:correctionNumber>0</aixm:correctionNumber>
          <aixm:featureLifetime>
            <gml:TimePeriod gml:id="uuid.2ee43a0d-2560-4347-b5ac-497972ea563e">
              <gml:beginPosition>2020-09-01T00:00:00Z</gml:beginPosition>
              <gml:endPosition indeterminatePosition="unknown" />
            </gml:TimePeriod>
          </aixm:featureLifetime>
          <aixm:status>NORMAL</aixm:status>
          <aixm:runwayDirection xlink:href="#15a02d30-8723-45d4-bd69-07e8b44a2ce2" />
          <aixm:extent_curveExtent>
            <aixm:ElevatedCurve gml:id="uuid.5d685783-4272-45f3-a544-0d64d765b71d" srsName="urn:ogc:def:crs:EPSG::4326">
              <gml:segments>
                <gml:GeodesicString interpolation="geodesic">
                  <gml:posList>50.09299025 14.27569002 50.09346861 14.27622378</gml:posList>
                </gml:GeodesicString>
              </gml:segments>
            </aixm:ElevatedCurve>
          </aixm:extent_curveExtent>
        </aixm:ArrestingGearTimeSlice>
      </aixm:timeSlice>
    </aixm:ArrestingGear>
  </hasMember>


Download feature ArrestingGearLocation:

BL_ArreastingGearLocation.xml

Status: Published