The width in feet of the physical runway.
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.)
An entity that it licensed to operate aircraft.
An ordered sequence of navigation elements specifying a path through the airspace.
The day number associated with a day class.
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.
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.
A non-airport location where operational weather monitoring hardware is installed.
The month number associated with a day class.
Represents a layer within the airspace, defined by a shear-sided polygon with specified low and high altitudes.
Links a sector to the ARTCC in which the sector is located.
A superclass encompassing the set of airframe and engine manufacturers.
The 2-letter US postal code for the state in which the airport is located.
A defined volume in the the airspace of an ARTCC or TRACON whose flight traffic is typically controlled by a single controller.
Associates an airport with the the STARs designated to route aircraft to that airport.
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.)
Links an airport to a taxiway for that airport.
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.
A class of vehicles that service the flights and maintain the airport physical infrastructure.
The country name of the airline registration.
An alphanumeric sector name that is in general different than the sector ID.
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.
Indicates which operational runway is being measured for visible range.
Vechicle that transports and pumps jet fuel to refuel aircraft.
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.
Indicates whether this airport is capable of an instrument approach.
The set of international (i.e., non-US) airports.
Links a sector to its vertically-stacked set of layers.
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.
The set of airports located in the United States, but outside the contiguous lower 48 states.
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.
The country name where the manufacturer is established.
Links to a geographic point designated as the airport location.
A vehicle that holds deicing fluid and pumping equipment to support deicing.
Links to the geographical point location that is the touchdown spot on the operational runway.
The lower altitude bound of an airspace layer.
Links an airport to an air traffic control tower for that airport.
The set of airports in the continental US.
Air Traffic Control System Command Center (ATCSCC) facility
The number of hours that the airport is offset from the UTC timezone.
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.
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.
Part of an airport's physical infrastructure, including gates, terminals, runways, taxiways, etc.
FAA alphanumeric identifier assigned to the route/airway.
Air Route Traffic Control Center (ARTCC or 'Center') facility
A defined substructure of the airspace used to manage air traffic, including sectors, SIDs, STARs, routes, etc.
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.
The calendar year associated with a day class.
Links an airport to a physical runway for that airport.
The FAA alphanumeric code for the TRACON.
A route that follows a specified radial path emanating from a given fix.
Links the airport to the ARTCC within which it is located.
The 3-letter ARTCC (Air Route Traffic Control Center) code.
Links a deicing pad with its location as a two-dimensional bounding polygon.
Links an airport to a terminal for that airport.
The length in feet of the physical runway.
The timezone identifier for the airport, where the timezone is specified as Area/Location, e.g. America/New_York.
Links an ARTCC to a 2-dimensional bounding polygon.
Links a deicing pad to its queue of aircraft waiting to be deiced.
The set of airports located in the United States.
A structure on the airport surface that serves as an interface between people, baggage, and aircraft.
The set of govenment agencies that perform aviation services.
Associates a physical runway with its two operational runways (180 degrees apart, representing approaches from either end of the physical runway).
The three-letter ICAO code assigned to the airline carrier.
The lower bound of visibility in feet over the centerline of the runway.
The radio call sign associated with an the air carrier. Used by pilots and controllers to identify aircraft over radio frequencies.
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.
A link between the TRACON and its geographic extent, represented as a single shear-sided polygonal volume.
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.
Links to the airport from which this route is destined.
The FAA identifier for the SID or STAR. Typically, but not uniformly, 5 alpha characters plus a revision digit.
A link between an ARTCC tier and the ARTCCs included in the tier.
Indicates whether this airport is a METAR weather reporting station.
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.
A physical location in the airport where deicing is performed.
Associates an airport with the the SIDs designated to route aircraft from that airport.
A high altitude airway based on ground-based VOR sensor locations.
The upper altitude bound of an airspace layer.
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.
A facility where regularly-scheduled aircraft arrive and depart.
Links to the airport for which this route is destined.
The gate identifier assigned by the airport authority.
Links an airport to a representation of its perimeter boundary.
The upper bound of visibility in feet over the centerline of the runway.
Associates a taxiway with its bounding two-dimensional rectangle.
This property links a NAS facility to another NAS facility when there is a letter of agreement (LOA) in place between them.
The thre-letter IATA code assigned to the airport. Contrast with the ICAO and FAA airport codes.
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.
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.
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.
The beginning of the hour stored as a datetime value.
An airport surface leading that connects the ramp area (i.e., the area in the vicinity of the gates) with the runways.
A route within a SID or STAR that connects the common route to one of multiple airports that use the SID/STAR.
Associates an airport terminal with a ramp tower that controlls the aircraft and vehicle traffic in the vicinity of that terminal.
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.
The name of the US state in which the TRACON command center is located.
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.
Associates an airport terminal with a aircraft gate located at that terminal.
An ordered sequence of aircraft awaiting deicing at a deicing pad.
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.
The set of FAA and airport facilities involved in operational air traffic management.
A physical interface between the aircraft and the terminal, used to board passengers and crew.
A superclass encompassing all entities that provide aviation services in the public and private sectors.
A low altitude airway based on ground-based VOR sensor locations.
Links a sector to an immediately adjacent sector that shares a boundary.
The alphanumeric identifier of the airport terminal.
The two-letter IATA code assigned to the carrier.
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.
Air Traffic Control Tower (ATCT) facility
Associates some component of airport infrastructure (runway, terminal, tower, etc.) with its airport.
The FAA identifier for air traffic control tower.
Terminal Radar Approach Control (TRACON) facility
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.
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.
The four-letter ICAO code assignied to the airport. Contrast with the IATA and FAA airport codes.
The city name where the TRACON command center is located.
The backbone portion of a SID or STAR that is flown by all aircraft.
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.
The type of TRACON: Tower-colocated TRACON or standalone TRACON.
Associates a physical runway with its bounding two-dimensional rectangle.
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.