Name	Data Type	Definition
designator	TextDesignatorType	The textual designator of the taxiway.
type	CodeTaxiwayType	An indication of a type of taxiway. For example: air taxiway, ground taxiway, exit/turnoff, rapid exit/turnoff, stub, turn around, etc.
width	ValDistanceType	The value of the physical width of the taxiway.
widthShoulder	ValDistanceType	The value of the taxiway shoulder width.
length	ValDistanceType	The value for the length of the taxiway.
abandoned	CodeYesNoType	An indicator that a taxiway is no longer in operational use, but it is still physically present and visible, although usually in a degraded state.

Association	Multiplicity	Role	To	Role description
isSituatedAt	0..1	associatedAirportHeliport	AirportHeliport	The airport the taxiway is associated with.
hasSurfaceDescribedBy	0..1	surfaceProperties	SurfaceCharacteristics	Surface characteristics of the Taxiway.
isOperationalBy	0..*	availability	ManoeuvringAreaAvailability	The operational status of the Taxiway.
isContaminated	0..*	contaminant	TaxiwayContamination
hasAnnotations	0..*	annotation	Note

From	Association	Multiplicity	Role	To	Role description
DeicingArea	isLocatedOn	0..1	taxiwayLocation	The taxiway associated with the deicing area.
TaxiwayLightSystem	isProvidedFor	0..1	lightedTaxiway	Taxiway lit by the light system.
TaxiwayMarking	isMarkedOn	0..1	markedTaxiway	Taixway that is marked.
GuidanceLine	connects	0..*	connectedTaxiway	Taxiway connected by the GuidanceLine.
TaxiwayElement	describesPartOf	0..1	associatedTaxiway	The Taxiway associated with the TaxiwayElement.

1 - Surface Contamination , 1 - Surface Marking , 1 - Taxiway , 2 - AirportHeliport Association , 2 - Guidance Line , 2 - Surface Lighting Elements , 3 - Runway Operational Point , 4 - Manoeuvering Area Availability