1. AIXM 5 Concepts
The use case presentation has revealed just a few of the new applications and services that could be developed on the foundation offered by an internationally agreed aeronautical information exchange specification. These services range from ‘classical’ automation, such as database driven charting, to new possibilities, such as updating on-board situation awareness systems with the latest NOTAM in force. Let’s see now which are the main elements that position AIXM version 5 as the candidate for becoming this internationally agreed aeronautical data exchange standard.
This presentation is based on the first part of the “AICM and AIXM 5 - Exchange Model goals, requirements and design” document.

2. Obstacles ICAO Annex 4, 14, 15 & DOC 8126 RTCA /EUROCAE DO-276/ED-98
AICM 4.5
IATA
Lighting
Schedule
Area 1, 2, 3
Point, Line, Polygon
Obstacle (ICAO) = All fixed (whether temporary or permanent) and mobile objects, or parts thereof, that are located on an area intended for the surface movement of aircraft or that extend above a defined surface intended to protect aircraft in flight
As an example, the new Belgocontrol Tower in Brussels.

3. What is an obstacle
Obstacle (ICAO) = All fixed (whether temporary or permanent) and mobile objects, or parts thereof, that are located on an area intended for the surface movement of aircraft or that extend above a defined surface intended to protect aircraft in flight
As an example, the new Belgocontrol Tower in Brussels.

4. Obstacle type

5. Obstacle horizontal geometry
Lines
Points, Circles
Polygons

6. Obstacle effectivity OBSTACLE Time Table Working Days 8 to 5 PM
Any other time

7. Obstacle status

8. Obstacle lighting status

9. Obstacle lighting effectivity
Sunset to Sunrise
Obstacle Lighting
Time Table

10. Obstacle made of parts Top elevation Vertical extent 343 m
Horizontal extent - polygon

11. Obstacle made of parts

12. Obstacle made of parts

13. Obstacle made of parts
or, more detailed…

14. Obstacle and Lighting

15. Obstacle areas

16. XML Sample – “antenna”
<Obstacle xmlns=" xmlns:gml=" xmlns:xlink=" xmlns:xsi=" xsi:schemaLocation=" AIXM-GML-ObjectTypes.xsd" gml:id="ID000000">
<identifier codeSpace="
<gml:validTime>
<gml:TimePeriod>
<gml:beginPosition> T00:00:00</gml:beginPosition>
<gml:endPosition indeterminatePosition="unknown"/>
</gml:TimePeriod>
</gml:validTime>
<timeSlice>
<ObstacleTimeSlice gml:id="ID000002">
<interpretation>BASELINE</interpretation>
<name>Donlon</name>
<type>antenna</type>
<markingPattern>painted - vertical bands</markingPattern>
… see next slide ---
</ObstacleTimeSlice>
</timeSlice>
</Obstacle>

17. XML Sample – “antenna” <ObstacleTimeSlice gml:id="ID000002">
… see previous slide ---
<markingPattern>painted - vertical bands</markingPattern>
<markingFirstColour>RED</markingFirstColour>
<markingSecondColour>WHI</markingSecondColour>
<constructionStatus>COMPLETED</constructionStatus>
<groupOfObstacles>N</groupOfObstacles>
<remark>A fictitious obstacle</remark>
<madeOf>
<ObstaclePart gml:id="ID000004">
<verticalExtent uom="FT">104</verticalExtent>
<elevationAccuracy uom="FT">5</elevationAccuracy>
<hasPointShape>
<ElevatedPoint srsDimension="2" srsName="WGS84" gml:id="ID000005">
<gml:pos> </gml:pos>
<horizontalAccuracy uom="FT">10</horizontalAccuracy>
<elevation uom="FT">255</elevation>
<geoidUndulation uom="FT">-25</geoidUndulation>
<verticalDatum>EGM-96</verticalDatum>
<verticalAccuracy uom="FT">5</verticalAccuracy>
</ElevatedPoint>
</hasPointShape>
</ObstaclePart>
</madeOf>
<isEffective>
<TimeTable gml:id="ID000006"> <workingHoursCode>H24</workingHoursCode> </TimeTable>
</isEffective>
</ObstacleTimeSlice>

18. References
Available soon on
AIXM Obstacle Proposal