Class - TouchDownLiftOffSafeArea

<< feature >> Logical View.AIXM.AIXM Features.AirportHeliport.Helicopter Surfaces

<<feature>> An obstacle free zone area situated in the vicinity of a touch down and lift-off area, provided to protect helicopters during manoeuvring, take-off and/or landing operations.

Inheritance

This is a specialization of the AirportHeliportProtectionArea class and it inherits all attributes and associations of that class.

List of attributes

Name	Data Type	Definition
width	ValDistanceType	The value of the physical width of the protection area.	Inherited from AirportHeliportProtectionArea
length	ValDistanceType	The value of the physical length of the protection area.	Inherited from AirportHeliportProtectionArea
lighting	CodeYesNoType	The availability of a lighting system that visually identified the Protection Area in low visibility conditions.	Inherited from AirportHeliportProtectionArea
obstacleFree	CodeYesNoType	Indicates if the protection area is obstacle free.	Inherited from AirportHeliportProtectionArea

Navigable associations from TouchDownLiftOffSafeArea

Association	Multiplicity	Role	To	Role description
protects	0..1	protectedTouchDownLiftOff	TouchDownLiftOff	The protected TouchDownLiftOff.
hasSurfaceDescribedBy	0..1	surfaceProperties	SurfaceCharacteristics	The surface characteristics of the AirportHeliportProtectionArea.	Inherited from AirportHeliportProtectionArea
hasExtent	0..1	extent	ElevatedSurface	Extent of the protection area.	Inherited from AirportHeliportProtectionArea
hasAnnotations	0..*	annotation	Note		Inherited from AirportHeliportProtectionArea

Used By (diagrams)

2 - TLOF Protection Area , 4 - Runway Protection

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Class - TouchDownLiftOffSafeArea

Inheritance

List of attributes

Navigable associations from TouchDownLiftOffSafeArea

Used By (diagrams)