runway width in feet
range: float
domain: Physical Runway
comment: The width in feet of the physical runway.
type: DatatypeProperty

taxiway ID
range: string
domain: Taxiway
comment: An identifier for the taxiway.
type: DatatypeProperty

T-Route
subclass of: RNAV route
comment: A low altitude RNAV airway route. (RNAV routes allow an aircraft to choose any course within a network of navigation beacons, rather than navigate directly to and from the beacons.)
type: Class

Air carrier
subclass of: Aviation service provider
comment: An entity that it licensed to operate aircraft.
type: Class

AirspaceRoute
subclass of: Airspace infrastructure component
comment: An ordered sequence of navigation elements specifying a path through the airspace.
type: Class

dayOfMonth
range: integer
domain: NAS day
comment: The day number associated with a day class.
type: DatatypeProperty

ARTCCtier
subclass of: Airspace infrastructure component
comment: A donut-shaped geographical area surrounding a designated central ARTCC. The first tier includes all the ARTCCs that share a boundary with the designated ARTCC. The tier two ARTCCs includes the first tier ARTCCs plus those adjacent to the first tier ARCCCs. And so on.
type: Class

RNAV route
subclass of: Federal airway
comment: An RNAV (Random Navigation) route is defined relative to a network of existing ground-based navigation beacons. RNAV allows an aircraft to choose any course within the network, rather than navigate using only point-to-point routes defined by the beacons.
type: Class

Stand-alone weather station
subclass of: Thing
comment: A non-airport location where operational weather monitoring hardware is installed.
type: Class

calendarMonth
range: integer
domain: NAS day
comment: The month number associated with a day class.
type: FunctionalProperty
type: DatatypeProperty

Airspace layer
subclass of: Airspace infrastructure component
comment: Represents a layer within the airspace, defined by a shear-sided polygon with specified low and high altitudes.
type: Class

located in Center
range: ARTCC
domain: Sector
comment: Links a sector to the ARTCC in which the sector is located.
type: ObjectProperty

Aviation industry manufacturer
subclass of: Aviation service provider
comment: A superclass encompassing the set of airframe and engine manufacturers.
type: Class

Located in State
range: string
domain: Airport
comment: The 2-letter US postal code for the state in which the airport is located.
type: FunctionalProperty
type: DatatypeProperty

Sector
subclass of: Airspace infrastructure component
comment: A defined volume in the the airspace of an ARTCC or TRACON whose flight traffic is typically controlled by a single controller.
type: Class

has STAR
range: Standard Arrival Route
domain: Airport
comment: Associates an airport with the the STARs designated to route aircraft to that airport.
type: ObjectProperty

Q-Route
subclass of: RNAV route
comment: A high altitude RNAV airway route. (RNAV routes allow an aircraft to choose any course within a network of navigation beacons, rather than navigate directly to and from the beacons.)
type: Class

has taxiway
range: Taxiway
domain: Airport
comment: Links an airport to a taxiway for that airport.
type: ObjectProperty

tfms monitor alert parameter
range: integer
domain: Sector
comment: The maximum number of aircraft permitted in a given sector at any time, per agreement between FAA and Air Traffic Controller union. MAP (Monitor Alert Parameter) is a TFMS input parameter.
type: DatatypeProperty

Airport service vehicle
subclass of: Airport infrastructure component
comment: A class of vehicles that service the flights and maintain the airport physical infrastructure.
type: Class

country of registry
range: string
domain: Air carrier
comment: The country name of the airline registration.
type: DatatypeProperty

has sector name
range: string
domain: Sector
comment: An alphanumeric sector name that is in general different than the sector ID.
type: DatatypeProperty

VOR route
subclass of: Federal airway
comment: A VOR route is defined relative to a network of existing ground-based VOR navigation beacons. VOR routes consist of point-to-point segments, where the points are defined by the beacons. More modern RNAV routes allow any path within the network, not limited to VOR-to-VOR segments.
type: Class

runway measured
range: Operational runway
domain: RVR measurement
comment: Indicates which operational runway is being measured for visible range.
type: ObjectProperty
type: FunctionalProperty

Air carrier name
range: string
domain: Air carrier
comment: The official name of an air carrier.
type: DatatypeProperty

Refueling truck
subclass of: Airport service vehicle
comment: Vechicle that transports and pumps jet fuel to refuel aircraft.
type: Class

has sector ID
range: string
domain: Sector
comment: A sector identifier that consists of the ARTCC identifier concatenated with a three-digit number. This identifier is in general different than the sector name.
type: DatatypeProperty

is instrument control eligible
range: boolean
domain: Airport
comment: Indicates whether this airport is capable of an instrument approach.
type: DatatypeProperty

International airport
subclass of: Airport
comment: The set of international (i.e., non-US) airports.
type: Class

has sector layer
range: Airspace layer
domain: Sector
comment: Links a sector to its vertically-stacked set of layers.
type: ObjectProperty

date
range: date
domain: NAS day
comment: The date corresponding to the day represented by the day class. The value of this property is a date datatype. In contrast, the class represents the day conceptually as an object.
type: FunctionalProperty
type: DatatypeProperty

Non CONUS airport
subclass of: USairport
comment: The set of airports located in the United States, but outside the contiguous lower 48 states.
type: Class

has airspace layer geometry
range: ShearSidedPolygonalVolume
domain: Airspace layer
comment: Links an airspace layer with a polygon describing its location in 3-space. A sector is composed of a sequence of layers, each of which is represented as a shear-sided polygonal volume.
type: ObjectProperty

manufacturer country name
range: string
domain: Airframe manufacturer
comment: The country name where the manufacturer is established.
type: DatatypeProperty

airport location
range: PointLocation
domain: Airport
comment: Links to a geographic point designated as the airport location.
type: ObjectProperty
type: FunctionalProperty

Deicing truck
subclass of: Airport service vehicle
comment: A vehicle that holds deicing fluid and pumping equipment to support deicing.
type: Class

touchdown point
range: PointLocation
domain: Operational runway
comment: Links to the geographical point location that is the touchdown spot on the operational runway.
type: ObjectProperty
type: FunctionalProperty

airspace layer low altitude
range: integer
domain: Airspace layer
comment: The lower altitude bound of an airspace layer.
type: DatatypeProperty

has tower
range: ATCT
domain: Airport
comment: Links an airport to an air traffic control tower for that airport.
type: ObjectProperty

Continental US airport
subclass of: USairport
comment: The set of airports in the continental US.
type: Class

ATCSCC
subclass of: NAS facility
comment: Air Traffic Control System Command Center (ATCSCC) facility
type: Class

hours offset from UTC
range: integer
domain: Airport
comment: The number of hours that the airport is offset from the UTC timezone.
type: FunctionalProperty
type: DatatypeProperty

has tier
range: ARTCCtier
domain: ARTCC
comment: Asociates an ARTCC with the set of ARTCCs in its nth level tier. Tier 1 includes the central ARTCC plus all ARTCCs immediately adjoining the central ARTCC; tier 2 includes tier 1 plus all adjacent ARTCCs two steps away from the central ARTCC. And so on.
type: ObjectProperty
type: InverseFunctionalProperty

RVR measurement
comment: A measurement of the distance over which a pilot of an aircraft on the centerline of a runway can see the runway surface markings delineating the runway and its centerline. RVR (Runway Visible Range) is expressed as an interval specifying the minimum and maximum number of feet visible.
type: Class

Airport infrastructure component
subclass of: Thing
comment: Part of an airport's physical infrastructure, including gates, terminals, runways, taxiways, etc.
type: Class

route ID
range: string
domain: AirspaceRoute
comment: FAA alphanumeric identifier assigned to the route/airway.
type: DatatypeProperty

ARTCC
subclass of: NAS facility
subclass of: Airspace infrastructure component
comment: Air Route Traffic Control Center (ARTCC or 'Center') facility
type: Class

Airspace infrastructure component
subclass of: Thing
comment: A defined substructure of the airspace used to manage air traffic, including sectors, SIDs, STARs, routes, etc.
type: Class

Operational runway
subclass of: Airport infrastructure component
comment: An operational runway is a named runway one used in airport operations. There are two operational runways corresponding to one physical runway; these operational runways are 180 degrees apart.
type: Class

calendarYear
range: integer
domain: NAS day
comment: The calendar year associated with a day class.
type: FunctionalProperty
type: DatatypeProperty

has runway
range: Physical Runway
domain: Airport
comment: Links an airport to a physical runway for that airport.
type: ObjectProperty

has TRACON ID
range: string
domain: TRACON
comment: The FAA alphanumeric code for the TRACON.
type: FunctionalProperty
type: DatatypeProperty

Radial Route
subclass of: AirspaceRoute
comment: A route that follows a specified radial path emanating from a given fix.
type: Class

within ARTCC
range: ARTCC
domain: Airport
comment: Links the airport to the ARTCC within which it is located.
type: ObjectProperty

artcc ID
range: string
domain: ARTCC
comment: The 3-letter ARTCC (Air Route Traffic Control Center) code.
type: FunctionalProperty
type: DatatypeProperty

airport name
range: string
domain: Airport
comment: The official name of the airport.
type: FunctionalProperty
type: DatatypeProperty

deicing pad location
range: Polygonal2DRegion
domain: Deicing pad
comment: Links a deicing pad with its location as a two-dimensional bounding polygon.
type: ObjectProperty
type: FunctionalProperty

Airframe manufacturer
subclass of: Aviation industry manufacturer
comment: A manufacturer of physical aircraft.
type: Class

has terminal
range: Terminal
domain: Airport
comment: Links an airport to a terminal for that airport.
type: ObjectProperty

runway length in feet
range: float
domain: Physical Runway
comment: The length in feet of the physical runway.
type: DatatypeProperty

has TRACON name
range: string
domain: TRACON
comment: The common name for the TRACON.
type: DatatypeProperty

within timezone
range: string
domain: Airport
comment: The timezone identifier for the airport, where the timezone is specified as Area/Location, e.g. America/New_York.
type: FunctionalProperty
type: DatatypeProperty

has center geometry
range: Polygonal2DRegion
domain: ARTCC
comment: Links an ARTCC to a 2-dimensional bounding polygon.
type: ObjectProperty

has queue
range: Deicing queue
domain: Deicing pad
comment: Links a deicing pad to its queue of aircraft waiting to be deiced.
type: ObjectProperty
type: FunctionalProperty

USairport
subclass of: Airport
comment: The set of airports located in the United States.
type: Class

Terminal
subclass of: Airport infrastructure component
comment: A structure on the airport surface that serves as an interface between people, baggage, and aircraft.
type: Class

Government aviation service provider
subclass of: Aviation service provider
comment: The set of govenment agencies that perform aviation services.
type: Class

associated operational runway
range: Operational runway
domain: Physical Runway
comment: Associates a physical runway with its two operational runways (180 degrees apart, representing approaches from either end of the physical runway).
type: ObjectProperty

ICAO Air Carrier Code
range: string
domain: Air carrier
comment: The three-letter ICAO code assigned to the airline carrier.
type: FunctionalProperty
type: DatatypeProperty

min visibility
range: integer
domain: RVR measurement
comment: The lower bound of visibility in feet over the centerline of the runway.
type: FunctionalProperty
type: DatatypeProperty

airline callsign
range: string
domain: Air carrier
comment: The radio call sign associated with an the air carrier. Used by pilots and controllers to identify aircraft over radio frequencies.
type: DatatypeProperty

NAS
version info: Created with TopBraid Composer
imports: equipment
type: Ontology

manufacturer full name
range: string
domain: Airframe manufacturer
comment: The full name of the manufacturer.
type: DatatypeProperty

Transition route
subclass of: SIDSTARroute
comment: A route within a SID or STAR that feeds aircraft into or out from the common route of the SID/STAR. In other words, the transition route is a feeder route from the en route segment of a flight into the heart of a STAR for arrival; or an exit route from a SID funneling flights to their appropriate initial jet routes for the en route segment of flight.
type: Class

has TRACON layer
range: Airspace layer
domain: TRACON
comment: A link between the TRACON and its geographic extent, represented as a single shear-sided polygonal volume.
type: ObjectProperty

NAS day
subclass of: Thing
comment: A class that represents a day of the year. Events, such as flights, weather forecasts, and other events are linked to the instance of the day they occurred.
type: Class

departure route airport
range: Airport
domain: Airport route
comment: Links to the airport from which this route is destined.
type: ObjectProperty

sidstar ID
range: string
domain: SIDSTAR
comment: The FAA identifier for the SID or STAR. Typically, but not uniformly, 5 alpha characters plus a revision digit.
type: DatatypeProperty

includes ARTCC
range: ARTCC
domain: ARTCCtier
comment: A link between an ARTCC tier and the ARTCCs included in the tier.
type: ObjectProperty

is weather reporting station
range: boolean
domain: Airport
comment: Indicates whether this airport is a METAR weather reporting station.
type: DatatypeProperty

Canadian airport
subclass of: International airport
comment: The set of Canadian airports.
type: Class

air carrier alias
range: string
domain: Air carrier
comment: An alternative name for an air carrier.
type: DatatypeProperty

Standard Arrival Route
subclass of: SIDSTAR
comment: A STAR (Standard Terminal Arrival Route) is an air traffic control coded arrival route established for application to arriving IFR (Instrument Flight Rules) aircraft destined for certain airports.
type: Class

Deicing pad
subclass of: Airport infrastructure component
comment: A physical location in the airport where deicing is performed.
type: Class

has SID
range: Standard Instrument Departure
domain: Airport
comment: Associates an airport with the the SIDs designated to route aircraft from that airport.
type: ObjectProperty

Jet route
subclass of: VOR route
comment: A high altitude airway based on ground-based VOR sensor locations.
type: Class

airspace layer high altitude
range: integer
domain: Airspace layer
comment: The upper altitude bound of an airspace layer.
type: DatatypeProperty

has common route
range: Common route
domain: SIDSTAR
comment: Associates a common route with a SID or STAR. A SID or STAR has a single common route, but can have multiple airport or transition routes.
type: ObjectProperty

Airport
subclass of: NAS facility
comment: A facility where regularly-scheduled aircraft arrive and depart.
type: Class

arrival route airport
range: Airport
domain: Airport route
comment: Links to the airport for which this route is destined.
type: ObjectProperty

gate ID
range: string
domain: Gate
comment: The gate identifier assigned by the airport authority.
type: FunctionalProperty
type: DatatypeProperty

airport boundary
range: Polygonal2DRegion
domain: Airport
comment: Links an airport to a representation of its perimeter boundary.
type: ObjectProperty

max visibility
range: integer
domain: RVR measurement
comment: The upper bound of visibility in feet over the centerline of the runway.
type: FunctionalProperty
type: DatatypeProperty

taxiway location
range: Polygonal2DRegion
domain: Taxiway
comment: Associates a taxiway with its bounding two-dimensional rectangle.
type: ObjectProperty
type: FunctionalProperty

has LOA with
range: NAS facility
domain: NAS facility
comment: This property links a NAS facility to another NAS facility when there is a letter of agreement (LOA) in place between them.
type: SymmetricProperty

IATA Airport Code
range: string
domain: Airport
comment: The thre-letter IATA code assigned to the airport. Contrast with the ICAO and FAA airport codes.
type: FunctionalProperty
type: DatatypeProperty

has transition route
range: Transition route
domain: SIDSTAR
comment: Associates a transition route with a SID or STAR. A SID or STAR has a single common route, but can have multiple airport or transition routes.
type: ObjectProperty

tier level
range: integer
domain: ARTCCtier
comment: The degree number of the ARTCC tier. Tier 1 includes the central ARTCC plus all ARTCCs immediately adjoining the central ARTCC; tier 2 includes tier 1 plus all adjacent ARTCCs two steps away from the central ARTCC. And so on.
type: FunctionalProperty
type: DatatypeProperty

Ramp tower
subclass of: Airport infrastructure component
comment: A control tower from which ramp controllers guide aircraft movements as they enter and exit the taxiways, and arrive and leave the gates. The ramp is the area of the airport surface where planes, service vehicles, and people meet.
type: Class

starting time
range: time
domain: NAShour
comment: The beginning of the hour stored as a datetime value.
type: FunctionalProperty
type: DatatypeProperty

Taxiway
subclass of: SequencedItem
subclass of: Airport infrastructure component
comment: An airport surface leading that connects the ramp area (i.e., the area in the vicinity of the gates) with the runways.
type: Class

Airport route
subclass of: SIDSTARroute
comment: A route within a SID or STAR that connects the common route to one of multiple airports that use the SID/STAR.
type: Class

has ramp tower
range: Ramp tower
domain: Terminal
comment: Associates an airport terminal with a ramp tower that controlls the aircraft and vehicle traffic in the vicinity of that terminal.
type: ObjectProperty

Physical Runway
subclass of: Airport infrastructure component
comment: A physical runway, defined as a delimited rectangular surface region of the airport. Each physical runway is associated with two operational runways, 180 degrees apart.
type: Class

has TRACONstate
range: string
domain: TRACON
comment: The name of the US state in which the TRACON command center is located.
type: DatatypeProperty

SIDSTAR
subclass of: Airspace infrastructure component
comment: A superclass of SID and STAR defining the properties shared by both, specifically the set of common, airport, and transition routes that comprise the SID/STAR.
type: Class

has gate
range: Gate
domain: Terminal
comment: Associates an airport terminal with a aircraft gate located at that terminal.
type: ObjectProperty

Deicing queue
subclass of: Restriction
  on property: hasSequencedItem
  all values from: Aircraft
subclass of: Restriction
  on property: hasLastItem
  all values from: Aircraft
subclass of: Restriction
  on property: hasFirstItem
  all values from: Aircraft
subclass of: Sequence
comment: An ordered sequence of aircraft awaiting deicing at a deicing pad.
type: Class

Standard Instrument Departure
subclass of: SIDSTAR
comment: A SID (Standard Instrument Departure) is an air traffic control coded departure procedure that has been established at certain airports to simplify clearance delivery procedures.
type: Class

NAS facility
subclass of: Thing
comment: The set of FAA and airport facilities involved in operational air traffic management.
type: Class

Gate
subclass of: Airport infrastructure component
comment: A physical interface between the aircraft and the terminal, used to board passengers and crew.
type: Class

Aviation service provider
subclass of: Thing
comment: A superclass encompassing all entities that provide aviation services in the public and private sectors.
type: Class

Victor route
subclass of: VOR route
comment: A low altitude airway based on ground-based VOR sensor locations.
type: Class

Aircraft engine manufacturer
subclass of: Aviation industry manufacturer
comment: A manufacturer of aircraft engines.
type: Class

adjacent sector
range: Sector
domain: Sector
comment: Links a sector to an immediately adjacent sector that shares a boundary.
type: ObjectProperty

terminal ID
range: string
domain: Terminal
comment: The alphanumeric identifier of the airport terminal.
type: FunctionalProperty
type: DatatypeProperty

IATA Carrier Code
range: string
domain: Air carrier
comment: The two-letter IATA code assigned to the carrier.
type: FunctionalProperty
type: DatatypeProperty

NAShour
subclass of: Thing
comment: A class that represents an hour within a day. Events, such as flights, weather forecasts, and other events are linked to the instance of the day they occurred.
type: Class

ATCT
subclass of: NAS facility
subclass of: Airport infrastructure component
comment: Air Traffic Control Tower (ATCT) facility
type: Class

SIDSTARroute
subclass of: AirspaceRoute
comment: A route that defines a SID or STAR.
type: Class

associated airport
range: Airport
domain: Airport infrastructure component
comment: Associates some component of airport infrastructure (runway, terminal, tower, etc.) with its airport.
type: ObjectProperty
type: FunctionalProperty

tower ID
range: string
domain: ATCT
comment: The FAA identifier for air traffic control tower.
type: FunctionalProperty
type: DatatypeProperty

TRACON
subclass of: Restriction
  on property: has TRACONtype
  all values from: Datatype
    one of: TRACON
    one of: TOWER
subclass of: NAS facility
subclass of: Airspace infrastructure component
comment: Terminal Radar Approach Control (TRACON) facility
type: Class

FAA airport code
range: string
domain: Airport
comment: The alphanumeric FAA code of lenth 3 or 4 for the airport. Contrasted with the ICAO and IATA codes, which in general are different. Often the IATA and FAA codes are identical.
type: FunctionalProperty
type: DatatypeProperty

Federal airway
subclass of: AirspaceRoute
comment: An airspace route that is defined by FAA and can be filed as part of a flight plan: a jet route, a Q-route, a T-Route, a Victor route.
type: Class

ICAO airport code
range: string
domain: Airport
comment: The four-letter ICAO code assignied to the airport. Contrast with the IATA and FAA airport codes.
type: FunctionalProperty
type: DatatypeProperty

has TRACONcity
range: string
domain: TRACON
comment: The city name where the TRACON command center is located.
type: DatatypeProperty

Common route
subclass of: SIDSTARroute
comment: The backbone portion of a SID or STAR that is flown by all aircraft.
type: Class

has airport route
range: Airport route
domain: SIDSTAR
comment: Associates an airport route with a SID or STAR. A SID or STAR has a single common route, but can have multiple airport or transition routes.
type: ObjectProperty

has TRACONtype
range: string
domain: TRACON
comment: The type of TRACON: Tower-colocated TRACON or standalone TRACON.
type: DatatypeProperty

runway footprint
range: Polygonal2DRegion
domain: Physical Runway
comment: Associates a physical runway with its bounding two-dimensional rectangle.
type: ObjectProperty
type: FunctionalProperty

runway ID
range: string
domain: Class
  union of: Physical Runway
  union of: Operational runway
comment: An identifier for the runway. For physical runways, the convention is to label runways by their heading, dropping the last digit. E.g. for Liverpool, runway 9/27 is facing approximately magnetic heading 90 degrees in one direction, and 270 degrees in the opposite direction. If an airport has parallel runways, these would then be marked Left, Center and Right, e.g. 9L, 9C, 9R. For operational runways, the runway identifiers specifies one direction only: either 9 or 27 in the Liverpool example.
type: DatatypeProperty