Page Comparison

airport designator

The published designator of the airport where the apron is located, used in combination with other elements in order to identify the apron portion concerned.

AirportHeliport.designator

airport name

The published name of the airport where the apron is located, used in order to identify the apron(s) and/or apron portion(s) concerned.

AirportHeliport.name

apron name

The published name of the apron concerned. This information is used in combination with the airport designator/name in order to identify the affected  apron(s) and/or apron portion(s)

Apron.name

The coordinates defining the apron portion affected by the limitation.

location and extent description

Textual description of the limitation-affected apron portion location and extent. 

ApronElement.availability.ApronAreaAvailability.operationalStatus with value 'LIMITED' and 

ApronElement/..Availability/..Usage.type with value 'CONDITIONAL'

ApronElement.availability.ApronAreaAvailability.operationalStatus with value 'LIMITED' and 

ApronElement/..Availability/..Usage.type with value 'RESERV'

ApronElement.availability.ApronAreaAvailability.operationalStatus with value 'LIMITED' and 

ApronElement/..Availability/..Usage.type with value 'FORBID'

additionally allowed for

The description of one or more additional operations that are available for a specific purpose during the event duration.

ApronElement.availability.ApronAreaAvailability.operationalStatus with value 'OTHER:EXTENDED' and 

ApronElement/..Availability/..Usage.type with value 'PERMIT'

aircraft

The description of one or more aircraft (such as "helicopter") types that are exceptionally permitted or prohibited (depending on the apron portion during it's limitationlimitation type) during the event duration.

ApronElement/..Availability/..Usage/..selection/..AircraftCharacteristics 

Only the following AircraftCharacteristics properties are allowed to be used in this scenario: type, engine, wingSpan, wingSpanInterpretation, weight, weightInterpretation.

flight

The description of one or more type of flight categories (such as "emergency") that are exceptionally permitted or prohibited (depending on the apron portion during its limitationlimitation type) during the event duration.

ApronElement/..Availability/..Usage/..selection/..FlightCharacteristics.

Only the following FlightCharacteristics properties are allowed to be used in this scenario: type, rule, status, military, origin, purpose.

reason

The reason for the apron portion usage limitation.

ApronElement/ApronAreaAvailability.annotation with propertyName='operationalStatus' and purpose='REMARK'.

Note that the property "warning" of the ApronAreaAvailability class is not used here because it represents a reason for caution when allowed to operate on the apron, not a reason for a limitation.

start time

The effective date & time when the apron portion limitation starts. This might be further detailed in a "schedule".

ApronElement/ApronTimeSlice/TimePeriod.beginPosition, Event/EventTimeSlice.validTime/beginPosition and Event/EventTimeSlice.featureLifetime/beginPosition

end time

The end date & time when the apron portion limitation ends.

ApronElement/ApronTimeSlice/TimePeriod.endPosition, Event/EventTimeSlice.validTime/endPosition and Event/EventTimeSlice.featureLifetime/endPosition also applying the rules forEvents with estimated end time

schedule

A schedule might be provided, in case the apron portion's usage is effectively limited according to a regular timetable, within the overall limitation period.

ApronElement/ApronAreaAvailability/Timesheet/... according to the rules for Schedules

note

A free text note that provides further details concerning the apron portion limitation.

ApronElement/ApronAreaAvailability.annotation with purpose='REMARK'

ER-01

The temporary usage limitation of an apron portion shall be encoded as:

• a new Event with a 'BASELINE' TimeSlice (scenario='APE.LIM', version='2.0'), for which a PERMDELTA TimeSlice may also be provided; and

• a TimeSlice of type BASELINE for the ad-hoc ApronElement feature, for which the event:theEvent property points to the Event instance created above;

ER-04

The ApronElement BASELINE TimeSlice shall have ApronAreaAvailability with 'operationalStatus' equal to

• 'LIMITED', if the apron portion usage is "conditional for", "closed, except for", "prohibited for";
• 'OTHER:EXTENDED', if the apron portion usage is "allowed for".

If the apron portion usage is "conditional for" specified operations, flight and/or aircraft categories, then all specified limitations shall be encoded as ApronAreaUsage child elements with type='CONDITIONAL'.

If the apron portion is "closed, except for" specified operations, flight and/or aircraft categories, then all specified limitations shall be encoded as ApronAreaUsage child elements with type='RESERV'.

If the apron portion usage is "prohibited for" specified operations, flight and/or aircraft categories, all specified limitations shall be encoded as ApronAreaUsage child elements with type='FORBID'.

The "aircraft-flight-PPR" branch can be used more than once. If this the case, then a parent ConditionCombination with logicalOperator='OR' shall be coded first. Otherwise, this parent element is not necessary.

Then, each flight and/or aircraft combination shall be coded as a child ConditionCombination with logicalOperator equal to:

• 'NONE' - if either a flight condition or aircraft condition is specified (but not both);
• 'AND' - if both a flight condition and aircraft condition are specified.

ER-10

If PPR time is specified, the uom attribute shall also be specified.