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Excerpt

This section provides "AerodromeReferencePoint" data encoding guidance.

Table of Contents

Vocabulary

ED-99

ED-119/AMXM

AIXM 5.1

AIRM

Name

AerodromeReferencePoint

AM_AerodromeReferencePoint

AirportHeliport[Property ‘ARP’]

AerodromeReferencePoint

Information concept:

AerodromeReferencePoint: http://www.airm.aero/viewer/1.0.0/conceptual-model.html#AerodromeReferencePoint → http://www.airm.aero/viewer/1.0.0/conceptual-model/AerodromeReferencePoint.html

Data concept:

Aerodrome: http://www.airm.aero/viewer/1.0.0/logical-model.html#Aerodrome

Information concepts indicate the reference vocabulary and relations of an AerodromeReferencePoint with other concepts. Data concepts indicate the reference features and properties for service architects, information/data architects and system implementers.

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 AerodromeReferencePoint represents the designated geographical location of an aerodrome. This location shall be measured with required accuracy. 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 Aeronautical Data Catalogue the required type of geometry for feature AerodromeReferencePoint is 'Point'. The definition of Point can be found in the Table A1-9 Data types in the Aeronautical Data Catalogue.

AMD encoding

AIXM 5.1

ED-99 AerodromeReferencePoint is mapped in the AIXM 5.1 as property 'ARP' of feature AirportHeliport.

Geometry

In the AIXM 5.1 the geometry of the feature ARP is point encoded as object ElevatedPoint.

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 Point.

Figure 1: AerodromeReferencePoint

Time

Feature AirportHeliport with property AerodromeReferencePoint (ARP) shall be established in accordance with coding rules and requirements listed in AIXM 5.1 Temporality Model.

AIXM 5.1 features

In the AIXM 5.1 the geometry of the ARP is encoded as object ElevatedPoint. The ARP is associated from the feature AirportHeliport via the hasReferencePoint association in the AirportHeliport feature.

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

AirportHeliport feature

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

UML Diagram

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


Info
titleContent of example

The following AMD properties are not covered in the AIXM 5.1. coding example: vres, hres, integr, systems, mintelev, maxtelev, avgtelev, devtelev, maxtgrad, devtgrad. These are covered by an AIXM 5.1. extension.


Coding example - Structure of message

Code Block
languagexml
<AIXMBasicMessage  ...>
  <aixm:messageMetadata>
  </aixm:messageMetadata>
  <hasMember>
    <aixm:AirportHeliport gml:id="uuid.0b7a2688-ab95-47e6-82c2-23fe321c4a48">
  </hasMember>
</AIXMBasicMessage>

Coding example - AerodromeReferencePoint (AirportHeliport property 'ARP')

Code Block
languagexml
  <hasMember>
    <aixm:AirportHeliport gml:id="uuid.0b7a2688-ab95-47e6-82c2-23fe321c4a48">
      <gml:identifier codeSpace="urn:uuid:">0b7a2688-ab95-47e6-82c2-23fe321c4a48</gml:identifier>
      <aixm:timeSlice>
        <aixm:AirportHeliportTimeSlice gml:id="uuid.a03a08d1-25f9-4e10-8447-8f8e4c6e2b12">
          <gml:validTime>
            <gml:TimePeriod gml:id="uuid.56b20da6-b580-44b1-a6b7-c46f889d0fec">
              <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.e6534f0e-5a48-45ff-85e2-e91237908fbc">
              <gml:beginPosition>2020-09-01T00:00:00Z</gml:beginPosition>
              <gml:endPosition indeterminatePosition="unknown" />
            </gml:TimePeriod>
          </aixm:featureLifetime>
          <aixm:designator>LKPR</aixm:designator>
          <aixm:name>PRAGUE AIRPORT</aixm:name>
          <aixm:locationIndicatorICAO>LKPR</aixm:locationIndicatorICAO>
          <aixm:designatorIATA>PRG</aixm:designatorIATA>
          <aixm:type>AD</aixm:type>
          <aixm:certifiedICAO>YES</aixm:certifiedICAO>
          <aixm:privateUse>NO</aixm:privateUse>
          <aixm:ARP>
            <aixm:ElevatedPoint gml:id="uuid.6225f9e9-3eaf-4416-b7d2-6279c4be4b71" srsName="urn:ogc:def:crs:EPSG::4326">
              <gml:pos>50.10083333 14.26</gml:pos>
              <aixm:horizontalAccuracy uom="M">0.5</aixm:horizontalAccuracy>
              <aixm:elevation uom="M">376</aixm:elevation>
              <aixm:verticalAccuracy uom="M">0.5</aixm:verticalAccuracy>
            </aixm:ElevatedPoint>
          </aixm:ARP>
        </aixm:AirportHeliportTimeSlice>
      </aixm:timeSlice>
    </aixm:AirportHeliport>
  </hasMember>

Table of properties of AerodromeReferencePoint

ED-99/DO-272AIXM 5.1Contained within example

AerodromeReferencePoint

AirportHeliport [Property ‘ARP’]

-1stfeatfeatureLifetime.gml:TimePeriod.gml:beginPositionyes2endfeatfeatureLifetime.gml:TimePeriod.gml:endPositionyes3stvalidvalidTime.gml:TimePeriod.gml:beginPosition

yes

4endvalidvalidTime.gml:TimePeriod.gml:endPositionyes5interpinterpretationyes6

feattype

Note: Can be implied

-7idnumberidentifieryes8

idarpt

locationIndicatorICAO

yes9

iata

designatorIATA

yes10namenameyes11

vacc

ARP.ElevatedPoint.verticalAccuracy

yes12

hacc

ARP.ElevatedPoint.horizontalAccuracy

yes13

vres

ARP.ElevatedPoint.verticalResolution

no (part of AIXM extension)14

hres

ARP.ElevatedPoint.horizontalResolution

no (part of AIXM extension)15

source

source
OR
gmd:MD_Metadata.gmd:dataQualityInfo.gmd:lineage.gmd:LI_Lineage.gmd:processStep.gmd:LI_ProcessStep
Note: Needs processor with a role set to "publisher".
yes
16
integr
integrity
no (part of AIXM extension)17
revdate
revisionDate
OR
gmd:MD_Metadata.gmd:identificationInfo.gmd:MD_DataIdentification.gmd:citation.gmd:CI_Citation.gmd:date.gmd:CI_Date.gmd:date
Note: Needs gmd:CI_Date.gmd:dateType.gmd:CI_DateTypeCode to be set to "revision"
yes
18
elev
fieldElevation
yes19systems
Not in scope of AIXM 5.1
no (part of AIXM extension)20mintelev
Not in scope of AIXM 5.1
no (part of AIXM extension)21maxtelev
Not in scope of AIXM 5.1
no (part of AIXM extension)22avgtelev
Not in scope of AIXM 5.1
no (part of AIXM extension)23devtelev
Not in scope of AIXM 5.1
no (part of AIXM extension)24maxtgrad
Not in scope of AIXM 5.1
no (part of AIXM extension)25devtgrad
Not in scope of AIXM 5.1
no (part of AIXM extension)26geopnt
ARP.ElevatedPoint
yes
Download feature AerodromeReferencePoint:
BL_ARP.xml
Missing attributes are part of the extension for the AIXM 5.1
https://ext.eurocontrol.int/aixm_confluence/display/AMX/Scope+of+AMX 
AMXM
https://ext.eurocontrol.int/aixm_confluence/display/AMX/AerodromeReferencePoint
TBD