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| Status | Description | ||||||
|---|---|---|---|---|---|---|---|
| 'AVBL_FOR_ACTIVATION' | The feature may be activated. | ||||||
| 'ACTIVE' | The airspace is active (but it might not be in use yet). | ||||||
| 'IN_USE' | The airspace is actually used inside the activation period. |
| |||||
| 'INACTIVE' | The airspace is not active. | ||||||
| 'INTERMITTENT' | The Airspace is active but with periods of no real usage. | ||||||
| 'OTHER' | Other. |
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- as ACTIVE for the time and levels when the airspace is actually operating;
- as AVBL_FOR_ACTIVATION when the actual activation is "announced by NOTAM", which is a frequently encountered situation for certain D and R areas;
- as' INACTIVE' for the time and levels when the airspace is know to not be operating.
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| Note | ||
|---|---|---|
| ||
The value 'IN_USE' should not be used for AIP Data Set, it is reserved for dynamic activation of Airspace (Digital NOTAM). |
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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| Warning | ||
|---|---|---|
| ||
AIXM does not provide a sufficient list of values.Workaround Workaround AIXM 5.1(.1): Use 'OTHER'.Status 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, which by a digital NOTAM may be limited to the actual AirspaceLayer used, which may be just a portion of its whole vertical extent .
More details about airspace activation in regard to digital NOTAM can be found in the Digital NOTAM Event Specification
.
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".
However, in an AIP the first item is only published for ATS airspaces of section AD 2.17, whereas the latter is only published for ATS airspaces airspace listed in section ENR 2.1.
For special activity airspaces the "Time of activity" is defined as "Time interval when the special activity takes place".
In the following, only those coding rules specific to the airspace subjects will be discussed. For For the general coding guidelines for Timesheet refer to topic Common coding patterns.
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