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Introduction
For special activity airspace, PANS-AIM requires as part of the minimum AIP data set to provide information about the type of restriction or nature of hazard. In case of an ADIZ (Air Defense Information Zone), the risk of interception in the event of penetration shall be indicated.
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The value 'IN_USE' should not be used for AIP Data Set, it is reserved for dynamic activation of Airspace processes (flexible use of airspace). |
Activity types
In addition to the list of activity types listed above, the following activities might occur in relation with certain danger areas. They should be encoded prefixed by OTHER:, as indicated below:
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AIXM does not provide a sufficient list of values. Workaround AIXM 5.1(.1): Use 'OTHER'. Status AIXM 5.2: CCB issue AIXM-226 contains proposal to add more values (including the above ones) to the enumeration list for activity. |
Vertical layer
The restriction may be limited within the airspace to a certain vertical portion of airspace by using the AirspaceLayer class. The vertical limits of the airspace concerned may be defined by a certain upper and lower limit of the AirspaceVolume.
Schedules
For ATS airspace, Appendix 1 of PANS-AIM (Aeronautical Data Catalogue) defines the "Hours of applicability" for the airspace and in addition the "Hours of Service", which are "the operational hours of the station serving the unit".
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For the general coding guidelines for Timesheet refer to topic Common coding patterns.
Hours of Applicability
For ATS airspaces published in "AD 2.17 Air traffic services airspace" PANS-AIM requires:
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The example below shows that in AD 2.17 the hours of applicability are not published. in AD 2.18 however, the Hours of operation of the frequency the unit is providing the service for the airspace are published.
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Hours of Service
This information is required for ATS airspace usually published in "ENR 2.1 FIR, UIR, TMA AND CTA":
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In AIXM, this information will be provided via the Service.availability', see ATS Unit providing Service.
Time of Activity
This information is required for special activity airspace usually published section in "ENR 5":
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In AIXM, this information will be provided via the Airspace.activation property. The AirspaceActivation class and its properties are used to code the detailed information, including the status and the timeInterval. See also topic Restriction & Activation.
A status has to be coded, in order to support the AIXM Digital NOTAM Event concept .
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The example below shows the Time of activity of a special activity airspace.
The example below shows the time Time of activity of a danger area with the note that it will be activated by NOTAM. This will be coded with corresponding Timesheet and the status 'AVBL_FOR_ACTIVATION'.
The next figure shows and example where the time of activity of a restricted area is defined by a schedule and additional hours of activity will be announced by NOTAM. In this case corresponding Timesheet will be coded and the status 'ACTIVE'. The additional activation by NOTAM will be coded as AirspaceActivation.annotation.
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Coding Example
The figure below gives a simple example of an airspace activation for BERTRIX AREA.
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| No. | Description | XPath Expression |
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| ATC-EX-01 | AMSWELL Control providing service for AMSWELL FIR, Hours of of service: H24 | //aixm:AirspaceTimeSlice[@gml:id='ATC_AMSWELL_ACC'] |
| ASE-EX-03 | Special activity airspace, Prohibited Area, Circle, Time of activity: H24 | //aixm:AirspaceTimeSlice[@gml:id='ASE_VAARDNOR_P'] |
| ASE-EX-04 | Special activity airspace, Restricted Area, Arc segment (Arc by centrepoint) | //aixm:AirspaceTimeSlice[@gml:id='ASE_BRAVO_R'] |
| ASE-EX-05 | Special activity airspace, Restricted Area, Rectangle | //aixm:AirspaceTimeSlice[@gml:id='ASE_BURGENVALK_R'] |
| ASE-EX-06 | Special activity airspace, Restricted Area, reference to state boundary (annotation) | //aixm:AirspaceTimeSlice[@gml:id='ASE_WINSWUK_R'] |
| ASE-EX-07 | Special activity airspace, Local type, reference to state boundary (xlink:href), Time of activity: 1 OCT - 31 JUL | //aixm:AirspaceTimeSlice[@gml:id='ASE_EAMOA01_MOA'] |
| ASE-EX-08 | Special activity airspace, Danger Area, Time of activity: MON-FRI 0700-1700 (0600-1600) | //aixm:AirspaceTimeSlice[@gml:id='ASE_HORSHAM_D'] |
| ASE-EX-09 | Special activity airspace, Danger Area, within CTR | //aixm:AirspaceTimeSlice[@gml:id='ASE_DONLON_D'] |
| ASE-EX-19 | Aerial sporting activities airspace, Time of activity: 0600-SS SUN: 0900-1600 | //aixm:AirspaceTimeSlice[@gml:id='ASE_DONBURG_PARACHUTE_JUMPING_AERA'] |