v1.0.6

ArrestingSystemLocation encoding

Owned by WILSON Scott
Last updated: 2021 Mar 31

This section provides ‘ArrestingSystemLocation’ 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, several points of the outer border of the ArrestingSystemLocation need to be captured. The key attributes are the longitude, latitude in reference with WGS-84 and the elevation of each captured point. 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 ArrestingSystemLocation is 'Polygon'. The definition of Polygon can be found in the Table A1-9 Data types of the Aeronautical Data Catalogue.

AMD encoding

AIXM 5.1

ED-99 feature ArrestingSystemLocation is mapped in the AIXM 5.1 as feature ArrestingGear with property 'engageDevice' set to "EMAS".

Geometry

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

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 PolygonPatch.

Figure 1 : ArrestingSystemLocation

Time

Feature ArrestingGear[engageDevice='EMAS'] shall be established in accordance with coding rules and requirements listed in AIXM 5.1 Temporality Model.

AIXM 5.1 features

ArrestingGear is encoded to the AIXM 5.1 as feature ArrestingGear with property engageDevice set to 'EMAS'.

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.2d001d89-4477-4414-beda-32915fb9e7f0">
  </hasMember>
  <hasMember>
    <aixm:Runway gml:id="uuid.3f4952ee-a237-47d9-ab33-23f46a6332b1">
  </hasMember>
  <hasMember>
    <aixm:RunwayDirection gml:id="uuid.f3b6aa50-7cce-455e-b33b-9706289f7d14">
  </hasMember>
</AIXMBasicMessage>

Coding example - ArrestingSystemLocation

  <hasMember>
    <aixm:ArrestingGear gml:id="uuid.2d001d89-4477-4414-beda-32915fb9e7f0">
      <gml:identifier codeSpace="urn:uuid:">2d001d89-4477-4414-beda-32915fb9e7f0</gml:identifier>
      <aixm:timeSlice>
        <aixm:ArrestingGearTimeSlice gml:id="uuid.09b16a9b-1a89-4b01-9ef0-a08ff11b2f5c">
          <gml:validTime>
            <gml:TimePeriod gml:id="uuid.30415c85-b855-4cc2-9b85-91324ec7ada9">
              <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.a505ddd4-3111-4433-b853-4a7850e0e96e">
              <gml:beginPosition>2020-09-01T00:00:00Z</gml:beginPosition>
              <gml:endPosition indeterminatePosition="unknown" />
            </gml:TimePeriod>
          </aixm:featureLifetime>
          <aixm:status>NORMAL</aixm:status>
          <aixm:length uom="M">95</aixm:length>
          <aixm:width uom="M">70</aixm:width>
          <aixm:engageDevice>EMAS</aixm:engageDevice>
          <aixm:location uom="M">1</aixm:location>
          <aixm:runwayDirection xlink:href="#f3b6aa50-7cce-455e-b33b-9706289f7d14" xlink:title="24" />
          <aixm:extent_surfaceExtent>
            <aixm:ElevatedSurface gml:id="uuid.e4e04591-e2a7-4f5f-9796-201993b55898" srsName="urn:ogc:def:crs:EPSG::4326">
              <gml:patches>
                <gml:PolygonPatch>
                  <gml:exterior>
                    <gml:Ring>
                      <gml:curveMember>
                        <gml:Curve gml:id="uuid.a46d76c4-e724-4be4-adf8-b2dafb5f6188">
                          <gml:segments>
                            <gml:GeodesicString interpolation="geodesic">
                              <gml:posList>50.10153975 14.2265092 50.10118792 14.22530221 50.10175609 14.22487792 50.10210749 14.22609514 50.10153975 14.2265092</gml:posList>
                            </gml:GeodesicString>
                          </gml:segments>
                        </gml:Curve>
                      </gml:curveMember>
                    </gml:Ring>
                  </gml:exterior>
                </gml:PolygonPatch>
              </gml:patches>
              <aixm:horizontalAccuracy uom="M">0.5</aixm:horizontalAccuracy>
              <aixm:elevation uom="M">376</aixm:elevation>
              <aixm:verticalAccuracy uom="M">0.5</aixm:verticalAccuracy>
            </aixm:ElevatedSurface>
          </aixm:extent_surfaceExtent>
        </aixm:ArrestingGearTimeSlice>
      </aixm:timeSlice>
    </aixm:ArrestingGear>
  </hasMember>


Download feature ArrestingSystemLocation:

BL_ArreastingSystemLocation.xml

Status: Published