Definition
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This scenario includes the possibility to provide obstacle type point, line or polygon, but it does not support obstacles composed of multiple parts;
This scenario includes encoding of new mobile obstacles. However, the scenario does not cover the temporarily modification of the elevation of an obstacle, such as an arresting device that is up.
This scenario includes groups of obstacles with similar objects, closely locatedheight located in close proximity to one another;
This scenario includes both airport and en-route obstacles, although the later is rarely occurring in NOTAM messages;
This scenario does not support encoding of obstacle with variable elevation; only a single elevation value can be provided; eventual reduced elevation information shall be provided as notes.
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Data item | value | AIXM mapping | |||||
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group | An indication whether the obstacle consists of a number of closely situated similar objects, for which a simple lat/long position (and eventually radius) is provided. | VerticalStructure.group with this list of values CodeYesNoType | |||||
mobile | An indication whether the obstacle is expected to move around its nominal location | VerticalStructure/VerticalStructurePart.mobile with this list of values CodeYesNoType | |||||
obstacle type | A type of vertical structure | VerticalStructure.type and VerticalStructure/VerticalStructurePart.type with this list of values CodeVerticalStructureType | |||||
description | A textual description of the obstacle, such as the number of similar items for a group, etc. | VerticalStructure.annotation with propertyName="type" and purpose="DESCRIPTION" | |||||
airport | Information such as designator or name used to identify the airport where the obstacle is located Note: the airport data item is multioccuring and supports providing information for more than one AD in the "vicinity". Please also note that there are no strict operational rules for what 'vicinity' means, hence the NOTAM operator will have to explicitly select the AirportHeliport that need to be considered in the vicinity. But at least they can be coded in relation with the Event. The Digital NOTAM data provider interface might offer suggestions with respect to the features affected by the new obstacle, but in any case, the operator shall be allowed to take the final decision by selecting the airports for which a NOTAM is really generated. | Event.concernedAirportHeliport href | |||||
location remarks | A named geographical location where or close to which the obstacle is located (especially for Area 1 obstacles) or a free text description of the obstacle position (distance, direction) in relation to relevant airport elements, such as a runway threshold or the control tower. Note: the information on relative position of an obstacle may serve as supplementary information for obstacles located closer to the airport. | VerticalStructure/VerticalStructurePart.annotation with propertyName="horizontalProjection_location" and purpose="REMARK"
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identifier | An alphanumerical designator by which the obstacle is identified in the national obstacle database | VerticalStructure/VerticalStructurePart.designator | |||||
point | The latitude, longitude and horizontal reference datum associated with the obstacle position. | VerticalStructure/VerticalStructurePart/ElevatedPoint according to the rules for encoding for encoding {{Geometrical and geographical data}} | |||||
line | Pairs of latitude/longitude values along a line, including the horizontal reference datum associated with the obstacle extent and location | VerticalStructure/VerticalStructurePart/ElevatedCurveaccording to the rules for encoding for encoding {{Geometrical and geographical data}} | |||||
polygon | Pairs of latitude/longitude values defining a polygon, including the horizontal reference datum associated with the obstacle extent and location | VerticalStructure/VerticalStructurePart/ElevatedSurfaceaccording to the rules for encoding for encoding {{Geometrical and geographical data}} | |||||
circle | A type of polygon in which all the points are located at constant geodesic distance from the centre of the circle. | VerticalStructure/VerticalStructurePart/ElevatedSurfaceaccording to the rules for encoding for encoding {{Geometrical and geographical data}} | |||||
elevation | The elevation (distance from Mean See Level) at the top of the obstacle. | VerticalStructure/VerticalStructurePart/ElevatedPoint or ElevatedSurface or ElevatedCurve/elevation including its unit of measure | |||||
height | The distance between the uppermost and the lowermost parts of the obstacle. | VerticalStructure/VerticalStructurePart.verticalExtent | |||||
lighting | An indication if the obstacle is lighted. | VerticalStructure.lightedwith the following list of valuesCodeYesNoType | |||||
marking description | Includes the description of visual markers (other than lights) that are installed on the obstacle, such as painting, flags, signs, etc. | VerticalStructure.annotation with propertyName="markingICAOStandard" and purpose="REMARK" | |||||
start time | The effective date & time when the obstacle starts to exist. This might be further detailed in a "schedule". | VerticalStructure/VerticalStructureTimeSlice.featureLifetime/beginPosition, VerticalStructure/VerticalStructureTimeSlice/validTime/beginPosition, Event/EventTimeSlice.validTime/beginPosition and Event/EventTimeSlice.featureLifetime/beginPosition | |||||
end time | The end date & time when the obstacle ceases to exist | VerticalStructure/VerticalStructureTimeSlice.featureLifetime/endPosition, VerticalStructure/VerticalStructureTimeSlice/validTime/endPosition, Event/EventTimeSlice.validTime/endPosition and Event/EventTimeSlice.featureLifetime/endPosition also applying the rules for {{Events with estimated end time}} | |||||
schedule | A schedule might be provided, in case the obstacle is only active according to a regular timetable, within the period between the start of life and the end of life. | VerticalStructure/VerticalStructurePart/Timesheet/...according to the rules for {{Schedules}} | |||||
note | A free text note that provides further details about the obstacle, such as the reason for which it exists, reduced height at certain times, etc. | VerticalStructure.annotation with purpose=”REMARK” |
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