http://www.aixm.aero/schema/5.0/profile/gml4aixm.xsd AIXM_Features.xsd AIXM 4.5 An area situated in the vicinity of a runway or provided to protect aircraft during manoeuvring, take-off and landing operations. AIXM 4.5 A code indicating the type of protection area. For example, clearway, obstacle free zone, obstacle free surface, etc.. AirMAT Temporal description of the operational state of the feature. This attribute is used to describe real-time status.) (DO272/ED99) Each RunwayDisplacedArea feature’s attribute idthr shall provide the idthr object identifier value of the operationally corresponding RunwayThreshold (Rule 7). ()DO272/ED99)Each Stopway feature’s attribute idthr shall provide the idthr object identifier value of the operationally corresponding RunwayThreshold (Rule 8). AIXM 4.5 A lighting system installed before the threshold of a runway providing a visual reference for aircraft landing on that runway. Classification of the approach lighting system using as criteria the ICAO Annex 14 standards and recommended practices AIXM 4.5 A regional or organisation specific classification of the approach lighting system equipment. Could also be a brand name AIXM 4.5 The overall length of the approach lighting system. AIXM 4.5 A code indicating the light intensity. For example, LIL, LIM, LIH. AIXM 4.5 A code indicating whether sequenced flashing is available for the approach lighting system. AIXM 4.5 A textual description of the flash characteristics, if provided, for the approach lighting system. AIXM 4.5 A code indicating whether a runway alignment indicator is available for the approach lighting system. An indication of the operational status of the approach lighting system. The list of values include: "in construction", "operational", "unavailable". Identifies the Runway Direction that the ALS serves. AIXM 4.5 One of the two landing and take-off directions of a runway for which attributes like TORA, TODA, LDA, etc. may be defined. AIXM 4.5 The full textual designator of the landing and take-off direction. Examples: 27, 35L, 01R. AIXM 4.5 The measured angle between the runway direction and True North at a given position. Note : The True North is the north point at which the meridian lines meet. Accuracy of the measured angle between the runway direction and True North at a given position. AIXM 4.5 The measured angle between the runway direction and Magnetic North at a given position. AIXM 4.5 A code indicating the direction of the VFR flight pattern at an aerodrome/heliport, i.e. left or right. AMDB Touchdown zone longitudinal slope (slope of 1/3 of the runway length from threshold or first 3000 feet for runways longer than 9000 feet) Elevation of touch down zone: The value of the highest elevation of the runway Touch Down Zone (TDZ). The accuracy of the reported Touch Down Zone elevation Type of marking related to landing categories such as precision, non-precision and basic. The quality of the runway marking such as good, fair, poor and other. Classification of the approach lighting system using as criteria JAR-OPS 1 - Subpart E, Appendix 1 to 1.430 AirMAT Degree to which navigation aids provide accurate approach guidance. Precision approaches utilize both lateral (course) and vertical (glideslope) information (DO272/ED99) Each FinalApproachAndTakeOff feature’s attribute idthr shall provide the idrwy object identifier value of the corresponding HelipadThreshold (Rule 15). The runway element is the start of the runway direction. Typically used to indicate the location of a displaced area. AIXM 4.5 An operationally significant position on the center line of a runway direction. A typical example is the runway threshold. The role of the point along the runway direction centreline. Identifies the geographical position of the runway centerline point. Identifies the runway direction on which the runway centerline point is located. Identifies the ruwnay declared distance for which the runway centerline point ensures. A point with role "RPI" = Runway Point of Intercept, which is the point perpendicular to the Glideslope Antenna on the Runway Centerline. Also known as the Aiming Point. Defines the threshold of Navaid Equipment in relation to the Runway Centerline Point. AIXM 4.5 A defined rectangular area on a land aerodrome/heliport prepared for the landing and take-off of aircraft. Note: this includes the concept of Final Approach and Take-Off Area (FATO) for helicopters. AIXM 4.5 The full textual designator of the runway, used to uniquely identify it at an aerodrome/heliport which has more than one. E.g. 09/27, 02R/20L, RWY 1. The type can be either runway for airplanes or final approach and take off area (FATO) for helicopters. AIXM 4.5 The value of the physical length of the runway. Accuracy of the value of the physical length of the runway. AIXM 4.5 The value of the physical width of the runway. Accuracy of the value of the physical width of the runway. AIXM 4.5 The value of the runway shoulder width. AIXM 4.5 The value of the physical length of the strip. The runway strip is a defined area including the runway and, if applicable, the stopway. It is intended (a) to reduce the risk of damage to aircraft running off the runway and (b) to protect aircraft flying over the runway during take-off or landing operations. AIXM 4.5 The value of the physical width of the strip. AIXM 4.5 A value specifying the longitudinal offset of the strip, when it is not symmetrically extended beyond the two runway ends. Notes: The longitudinal offset defines the distance along the centreline from the middle of the runway centreline towards the middle of the strip centreline. An offset in the direction defined from the threshold with the lower runway direction designation number towards the opposite runway threshold is indicated by a positive value. An offset in the opposite sense is indicated by a negative value. Example: a runway oriented 09/27 has a strip that is extending 120 m before the threshold of the runway direction 09 and only 100 m before the threshold of the runway direction 27. The value of the longitudinal offset will be -10 m. AIXM 4.5 A value specifying the lateral offset of the strip, when it is not symmetrically extended beyond the two runway edges. Note: The lateral offset defines the distance from the runway centreline to the strip centreline in direction perpendicular to the runway centreline. An offset to the right, based on the direction defined from the threshold with the lower runway direction designation number towards the opposite runway threshold, is indicated by a positive value. An offset to the left is indicated by a negative value. Example: a runway oriented 09/27 has a strip that is extending 150 m to the right of the runway direction 09 and 300 m to the left of the same runway direction. The value of the lateral offset will be -75 m. AIXM 4.5 A textual description of the RWY profile. A more precise description may be deduced from the elevation of the RunwayCenterLinePoints Identifies the surface characteristics of the runway. Identifies the Airport where the Runway is situated. Identifies the contaminant of the runway. AMDB A series of devices, namely engaging or catching devices and energy absorption devices used to stop an aircraft by absorbing its momentum in a routine, emergency landing or aborted take-off. AMDB The operational status of the arresting gear device. AirMAT Overall length of the feature. AirMAT Overall width of the feature. The type of device (for example: a hook) that is used to engage an aircraft upon landing in order to immediately stop it. The type of energy absorber (for example: a rotary brake) by which the arresting gear system rapidly dissipates the kinetic energy of a moving aircraft that engages the arresting system, bringing the aircraft to a stop. A boolean decribing the whether the arresting gear is utalized from both runway directions or not. The distance of the arresting system from the closest threshold of the runway /landing area. AMDB A textual description of the arresting gear characteristics. Identifies the runway direction on which the arresting gear is used. Describes the surface characteristics of the arresting gear. Identifies the curve of the arresting gear extent. Identifies the polygon of the arresting gear extent. Identifies the point of the arresting gear extent. AMDB Runway element may consist of one ore more polygons not defined as other portions of the runway class. AMDB The type of element. AMDB The length of the runway element. AMDB The width of the runway element. Identifies the surface characteristics of the runway element. Indicates which runways the Runway Element belongs to. Note that Runway Intersection elements will belong to more than one Runway. (DO272/ED99) Each RunwayElement feature’s attribute idrwy shall provide the idrwy object identifier value corresponding to the name of the real world runway (Rule 1). (DO272/ED99)Each RunwayIntersection feature’s attribute idrwi shall provide an idrwi object identifier value that corresponds to the names of the real world intersection runways (idrwy) (Rule 2). (DO272/ED99)Each RunwayShoulder feature’s attribute idrwy shall provide the idrwy object identifier value of the real world runway (Rule 3). Identifies the extent of the Ruwnay Element. A visual guidance system that provides "below/above glidepath" information to an aircraft executing an approach to a specific runway direction. AIXM 4.5 A code indicating the type of the visual approach slope indicator system. For example, VASIS, A-VASIS, PAPI, A-PAPI, etc.. AIXM 4.5 A code describing a position, relative to the centerline, of the visual approach slope indicator for a FATO/RWY direction. AIXM 4.5 The number of boxes that compose the visual approach slope indicator system. AIXM 4.5 A code indicating whether the visual approach slope indicator system is a portable one. AIXM 4.5 The appropriate approach slope angle to be used by an aircraft using the approach. AIXM 4.5 The Minimum Eye Height over Threshold (MEHT) value. Also known as the threshold crossing height for the Visual Glide Slope Indicator. Identifies the Runway Direction for which the Visual Glide Slope Indicator provides guidance for. A meteorological equipment providing information about the distance over which the pilot of an aircraft on the centre line of a runway can see the runway surface markings or the lights delineating the runway or identifying its centre line. The position along the runway direction for which the reading is provided. AIXM 4.5 A textual description of the RVR meteorological equipment provided for the Runway Direction. AirMAT From AirMAT: Specially prepared surface placed adjacent to the end of a runway to eliminate the erosive affect of the high wind forces produced by airplanes at the beginning of their takeoff rolls [U.S. CADD Feature Table] AirMAT Overall length of the feature AirMAT Temporal description of the operational state of the feature. This attribute is used to describe real-time status Identifies the runway direction on which the blast pad is used. Identifies the extent of the runway blast pad. Identifies the surface characteristics of the runway blast pad. Captures the distances between various Runway Centerline Points and Navaid Equipment. The measured or calculated distance between a Runway Centerline Point and a Navaid Equipment piece. Accuracy of the measured or calculated distance between a Runway Centerline Point and a Navaid Equipment piece. AIXM 4.5 A conventional operational distance declared for a runway direction. For example, TORA, TODA, LDA, ASDA. AIXM 4.5 A code indicating the type of a conventional declared distance. For example, TORA, TODA, LDA, RTODAH, etc.. AIXM 4.5 The value of the declared distance. Accuracy of the value of the declared distance. AIXM 4.5 A position on a taxi guidance line, where aircraft may be asked to hold. AMDB Type of landing operations for which that holding position is relevant. For example, precision cat I, precision cat II, precision cat III. AMDB A code indicating the operational status of the holding position. For example, serviceable, unserviceable, closed, work in progress, etc. (DO272/ED99) The value of a TaxiwayHoldingPosition feature’s attribute idlin shall be identical to the value of the corresponding TaxiwayElement feature’s attribute idlin (Rule 12). (DO272/ED99) The value of a TaxiwayHoldingPosition feature’s attribute idp shall be identical to the idrwy object identifier value of the protected real world runway (Rule 6). (DO272/ED99) The value of a TaxiwayHoldingPosition feature’s attribute idp shall be identical to the value of the operationally corresponding RunwayThresholds feature’s attribute idthr (Rule 20). AIXM 4.5 A defined path at an aerodrome/heliport established for the taxiing of aircraft/helicopters and intended to provide a link between one part of the aerodrome and another, including aircraft/helicopter stand taxilines, apron taxiways, rapid exit taxiways, air taxiways etc.. AIXM 4.5 The textual designator of the taxiway. AIXM 4.5 A code indicating a type of taxiway. For example: air taxiway, ground exit/turnoff, rapid exit/turnoff, stub, turn around, etc. AIXM 4.5 The value of the physical width of the taxiway. AIXM 4.5 The value of the taxiway shoulder width. AirMAT Value for the length of the taxiway Identifies the surface characteristics of the taxiway. Identifies the Airport where the Taxiway is situated. Identifies the contaminant of the taxiway. AMDB Part of a Taxiway AMDB The type of element. AMDB The length of the runway element. AMDB The width of the runway element. Identifies the surface characteristics of the taxiway element. (DO272/ED99) Each TaxiwayElement feature’s attribute idlin shall provide the idlin object identifier value corresponding to the name of the real world taxiway (Rule 9). Identifies the extent of the taxiway element. A line used to guide aircraft on and between airport movement areas. The free-text identifier of the Guidance Line. The type of guidance line. AMDB Maximum speed on Taxiway Indicates the direction in which the guidance line can be used with reference to the start and end points of the associated ElevatedCurve. Identifies the touch down lift off area that the guidance line connects to. (OD272/ED99) The value of a RunwayExitLine feature’s attribute idthr shall be identical to the value of the operationally corresponding RunwayThresholds feature’s attribute idthr (Rule 21). Identifies the apron that the guidance line connects to. (DO272/ED99) Each StandGuidanceLine feature’s attribute idstd shall provide object identifier values for all corresponding ParkingStandLocations (Rule 22). Identifies the extent of the guidance line. Identifies the taxiway that the guidance line connects to. An area used for aircraft de-icing. AirMAT An enumeration of values for the attribute status Identifies the Apron on which the Deicing Area is located on. Identifies the taxiway where the deicing area is located. Identifies the Gate Stand at which the Deicing Area is located. Identifies the surface characteristics of which the Deicing Area is described by. Identifies the extent of the deicing area. AIXM 4.5 A defined area, on a land aerodrome/heliport, intended to accommodate aircraft/helicopters for purposes of loading and unloading passengers, mail or cargo, and for fuelling, parking or maintenance. AIXM 4.5 The full textual name or designator used to identify an apron at an aerodrome/heliport which has more than one. AIXM 4.5 A code indicating the operational status of an apron. For example, serviceable, unserviceable, work in progress, etc. Identifies the surface characteristics of which the Apron is described by. Identifies the Airport where the Apron is situated. Identifies the contaminant of the apron. AMDB Parts of a defined apron area. ApronElements may have functional characteristics defined in the ApronElement type. ApronElements may have jetway, fuel, towing, docking and groundPower services. AMDB AMDB Availability of jetway AMDB Availability of towing service AMDB Availability of docking station system AMDB Availability of ground power AMDB The length of the runway element. AMDB The width of the runway element. (DO272/ED99) The value of a ParkingStandArea feature’s attribute idapron shall be identical to the value of the operationally corresponding ApronElement feature’s attribute idapron (Rule 23). (DO272/ED99) The value of a DeicingArea feature’s attribute idbase shall be identical to the value of the underlying ApronElement feature’s attribute idapron (Rule 26). Identifies the surface characteristics of which the Apron Element is described by. Identifies the extent of the apron element. AIXM 4.5 A parking position for aircraft/helicopters. AIXM 4.5 The textual designator of the gate/stand. For example, 13, 84 A, etc.. AIXM 4.5 A code identifying the characteristics of a stand. Examples: parking position on the apron, isolated aircraft stand, terminal building gate. Identifies the Surface Characteristics for which the Gate Stand is described by. The geographical reference position for the parking position. (DO272/ED99) Each ParkingStandArea feature’s attribute idstd shall provide an idstd object identifier value that holds the idstd object identifier values of all corresponding ParkingStandLocations (Rule 13) Identifies the surface area of the Gate Stand. Identifies the contaminant of the gate stand. AMDB Part of aerodrome surfaces used by service vehicles AMDB The designator or name of the service road. AMDB A code indicating the operational status of a service road. For example, serviceable, unserviceable, work in progress, etc. AirMAT Type of road Identifies the Airport where the Road is situated. Identifies the Surface Characteristics of the Road. Identifies the Gate Stand(s) for which the Road gives access. Identifies the surface area of the Road. AirMAT Bridge for loading/unloading access to airplanes for passengers and crew. AirMAT Type of bridge used passengers to board and deplane Identifies the surface area of the Passenger Loading Bridge. Identifies the gate stand associated with the passenger loading bridge. AIXM 4.5 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. Identifies the Touch Down Lift Off area that is protected by the Safe Area. AIXM 4.5 A load bearing area on which a helicopter may touch down or lift-off. AIXM 4.5 The textual designator of the touch down and lift-off area. AIXM 4.5 The value of the physical length of the touchdown and lift-off area. AIXM 4.5 The value of the physical width of the touchdown and lift-off area. AIXM 4.5 The value of the maximum profile slope of the touchdown and lift-off area. This value is always expressed as a percent. AIXM 4.5 A code indicating the performance class of helicopters that the Touch Down and Lift-Off Area is intended to serve. AIXM 4.5 A code indicating the operational status of a TLOF. For example, serviceable, unserviceable, closed, work in progress, etc. Locates the aiming point of the TLOF. Identifies the surface area of the Touch Down Lift Off area. Identifies the Surface Characteristics that describe the Touch Down Lift Off area. Identifies the Airport where the Touch Down Lift Off is situated. Only for runways of type FATO (DO272/ED99) Each FinalApproachAndTakeOff feature’s attribute idrwy shall provide the idrwy object identifier value of the corresponding TouchDownAndLiftOff (Rule 14). Identifies the contaminant of the touch down lift off area. AIXM 4.5 One or more light sources located on the ground and that provide visual assistance for air and ground navigation. AIXM 4.5 A textual description of the lighting system. AIXM 4.5 A textual description of the emergency lighting system availability and its characteristics. AIXM 4.5 A code indicating the relative intensity of the lighting system. AIXM 4.5 A code indicating the global colour of the lighting system. An indication of the operational status of the lighting system. The list of values include: "in construction", "operational", "unavailable". Identifies the Light Elements that make up the Ground Light System AIXM 4.5 The lighting system provided for an apron. AIXM 4.5 A code indicating the part of the apron served by the lighting system. Identifies the Apron for which the Lighting System is provided. AIXM 4.5 The lighting system provided for a taxiway at an aerodrome/heliport. AIXM 4.5 A code indicating the part of the TWY surface the lighting system is serving. For example, center line, edge, etc.. Identifies the Taxiway for which the Lighting System is provided. AIXM 4.5 The lighting system provided for a landing and take-off direction, including the stopway lights. AIXM 4.5 A code indicating the part of the runway the lighting system is serving. Identifies the Runway Direction for which the Lighting System is provided. AIXM 4.5 The lighting system provided for a TLOF surface at an aerodrome/heliport. AIXM 4.5 A code indicating the part of the TLOF surface the lighting system is serving. For example, TDZ, THR, center line, edge, etc.. Identifies the Touch Down Lift Off area for which the Lighting System is provided. The lighting system for the centerline guidance line. Identifies the Guidance Line for which the Lighting System is provided. The lighting for the runway project area. Location of the lighting. Identifies the Runway Protect Area for which the Lighting System is provided. Lighting system for a taxiway hold position. The kind of lighting aid provided for the taxiway holding position. Identifies the Taxi Holding Position for which the Lighting System is provided. Pilot controlled lighting The result and the intensity of the lighting system when activated by the pilot. Pilot controlled lighting The number of clicks on the microphone required for activation of the lights at a particular intensity step. Pilot controlled lighting The intensity step of the lighting system activated by the pilot, depending on the number of clicks. Pilot controlled lighting The status of the system (on or off) as result of the number of clicks. A group of symbols displayed on an aerodrome or heliport surface in order to convey aeronautical information. AMDB A textual description of the marking. Indicates if the marking is ICAO standard as described in Annex 14. The quality of the marking such as good, fair, poor and other. Identifies the Marking Elements of which the Marking is made. A symbol displayed on an aerodrome or heliport surface. AMDB A textual description of the marking element. AMDB The colour of the marking. AMDB The style of the marking line, such as continuous, dotted, etc. Identifies the marked polygon. Identifies the marked curve. Identifies the marked point. A symbol or group of symbols displayed on the surface of the taxiway. AIXM 4.5 A code indicating the location of the marking relative to the surface. (DO272/ED99) The value of a TaxiwayGuidanceLine feature’s attribute idlin shall be identical to the value of the corresponding TaxiwayElement feature’s attribute idlin (Rule 10). (DO272/ED99) The value of a TaxiwayIntersectionMarking feature’s attribute idlin shall be identical to the value of the corresponding TaxiwayElement feature’s attribute idlin (Rule 11). Identifies the taxiway element that is marked. A symbol or group of symbols displayed on the surface of the apron. AIXM 4.5 A code indicating the location of the marking relative to the surface. Identifies the Apron on which the Apron Marking is marked. A symbol or group of symbols displayed on the edge of the landing protection area. The location of the marking. Identifies the Airport Heliport Protection Area that is marked. A symbol or group of symbols displayed on the surface of the touch down and lift-off area. AIXM 4.5 A code indicating the location of the marking relative to the surface. Identifies the Touch Down Lift Off area that is marked. AMDB A symbol or group of symbols displayed on the surface of the runway. AIXM 4.5 A code indicating the location of the marking relative to the surface. The runway having the runway markings. (DO272/ED99) Each RunwayMarking feature’s attribute idrwy shall provide the idrwy object identifier value of the real world runway (Rule 4). A symbol or group of symbols displayed as the guidance line. Identifies the Guidance Line on which the Guidance Marking Line is marked. Identifies the Deicing Area that is marked. Identifies the Taxi Holding Position that is marked. Identifies the Gate Stand at which the Gate Stand Markings are marked. Presence or removal of hazardous conditions on movement areas due to snow, ice, slush, water. The type of contaminating substance on the movement area surface. The date and time of the measurement completion (UTC). The depth of the contamination on the surface. The average friction coefficient. A qualitative estimate of the friction. The type of equipment used to determine the reported friction coefficient. Indicates that the surface lights are obscured. Indicates the side on which the lights are obscured. The date and time (UTC) when it is expected to complete further clearance. Indicates that the further total clearance is expected. The date and time of the next intended measurement report (UTC). The surface covered by the contamination. For runways this can be a runway third, such as in the current SNOWTAM reporting style.. Identifies the critical bank associated to the contaminant. Describes ridges of deposited material (such as a snowbank) to the left or right of the runway (relative to the runway direction with the lowest designation number). The side of the runway with the specified snow bank. Distance from centreline of the movement area. Depth of the snow bank. Contains properties that are specific for runways, in association with the presence or removal of hazardous conditons due to snow, ice, slush, water. Indicates the part of the runway that is affected. This attribute supports the current SNOWTAM practice, which consists in reporting the contamination information on each third of the runway length, starting from the threshold of the runway direction having the lower designation number. Length of runway cleared of contamination, if less than the total length. Width of runway cleared of contamination, if less than the total width. Indicates that the cleared width is offset left or right of centre line. Length of runway that is expected to be cleared of contamination, if less than the total length. Contains properties that are specific for taxiways, in association with the presence or removal of hazardous conditons due to snow, ice, slush, water. Width of taxiway cleared of contamination. Indicates that the cleared width is offset left or right of centre line. AirMAT Floating facility which can serve as a mooring place for vessels or as a floating dry dock Identifies the extent of the floating dock site. AirMAT Floating marker which is moored to the bottom at a specific known location, which is used as an aid to navigation or for other special purpose AirMAT Official number of the buoy AirMAT The type of the buoy AirMAT Color of the buoy Identifies the geographical location of the marking buoy. AirMAT Area specifically designated for take-offs and landings of seaplanes Identifies the ramp site associated to the seaplane landing area. Identifies the dock site(s) associated with the seaplane landing area. Identifies the extent of the seaplane landing area. AirMAT Ramps specifically designed to transit seaplanes from land to water and vice versa Identifies the extent of the ramp site. Identifies the centerline of the ramp site. AMDB Part of a movement area under construction The type of work performed in the work area. Date when the activities in the construction area are expected to be operational. Identifies the Airport where the Work Area is situated. AMDB A monumented survey control point The identifier of the control survey point. AMDB The textual description of the monument and its location. Identifies the Airport at which the Survey Control Point is located. Identifies the geospatial location of the Survey Control Point. AIXM 4.5 An entity grouping together the attributes that model characteristics of an airport surface, such as strength, material, etc. AIXM 4.5 A code indicating the composition of an aerodrome/heliport related surface. For example: asphalt, concrete, etc... AIXM 4.5 A coded indication of the preparation technique for the surface area. AIXM 4.5 A qualitative code indicating the condition of a surface. AIXM 4.5 Pavement classification number (PCN) for the surface. AIXM 4.5 A coded indication of the pavement behaviour (rigid or flexible) used for the ACN-PCN determination. AIXM 4.5 A coded indication of the subgrade strength category related to the PCN number. AIXM 4.5 A coded indication of the maximum allowable tire pressure category related to the PCN number. AIXM 4.5 A code indicating the evaluation method for the PCN. AIXM 4.5 The Load Classification Number (LCN) of the surface. AIXM 4.5 The value of the Single isolated Wheel Load (SIWL) weight. AIXM 4.5 The value of the Single Isolated Wheel Load (SIWL) tire pressure. AIXM 4.5 The value of the All Up Wheel Weight. AirMAT Area where aircraft cannot be seen by a control tower and therefore are restricted to move Indicates the Airport where the Non-movement Area is situated. Identifies the surface area of the Non-movement Area. A city or location that may be served by an airport/heliport. AIXM 4.5 The full free text name of the city or town the aerodrome/heliport is serving. AIXM 4.5 A unitary restriction or permission concerning the availability of an aerodrome/heliport for certain flight types and/or aircraft types, during specific hours. AIXM 4.5 A code indicating whether the limitation is a permission or an interdiction. For a Conditional Permision, this indicates that a prior permission is required. Positive values indicate prior permission required before using the airport movement area. Note: this can only be specified for limitations of type "conditional permission". A code indicating a reason for restrictions in airport operations. For example, work in progress, presence of birds, etc. There is an implicit OR between AerdodromeHeliportUsageConditions related to the same limitation. The Unit responsible for the usage limitation AIXM 4.5 A combination of flight and/or aircraft characteristics used to define an aerodrome/heliport usage limitation. There is an implicit AND between the different Conditions (e.g., isBasedOnAircraft, isBasedOnFlight, concernsOperation). A code indicating whether the meteorological conditions allow visual or instrumental operations. The greatest distance at which lights of 1,000 candelas can be seen and identified against an unlit background (as reported by the airport). Indicates whether the visibility is a minimum or a maximum value. The distance over which a pilot of an aircraft on the centreline of the runway can see the runway surface markings or the lights delineating the runway or identifying its centre line. Indicates whether the RVR is a minimum or maximum value. Identifies the type of flight for which the usage condition is based on. Identifies the type of aircraft for which the usage condition is based on. Identifies the schedule when the usage condition is applicable. Identifies the type of operation for which the usage condition applies. AIXM 4.5 The totality of the usage restrictions/permissions for an aerodrome/heliport or for a particular set of movement area elements, which are related to flight type and/or aircraft type. Identifies the limitations that compose the Airport Heliport Usage. Identifies the SeaplaneLandingArea for which the Aiport Heliport Usage affects. Identifies the TaxiwayElement for which the Aiport Heliport Usage affects. Identifies the RunwayElement for which the Aiport Heliport Usage affects. Identifies the ApronElement for which the Aiport Heliport Usage affects. Identifies the GuidanceLine for which the Aiport Heliport Usage affects. Identifies the AirportHeliport for which the Aiport Heliport Usage affects. Identifies the Runway Direction for which the Aiport Heliport Usage affects. Identifies the Apron for which the Aiport Heliport Usage affects. Identifies the GateStand for which the Aiport Heliport Usage affects. Identifies the Taxiway for which the Aiport Heliport Usage affects. Identifies the TouchDownLiftOff for which the Aiport Heliport Usage affects. AIXM 4.5 An area situated in the vicinity of a runway, FATO or TLOF, provided to protect aircraft during manoeuvring, take-off and/or landing operations. AIXM 4.5 The value of the physical width of the protection area. AIXM 4.5 The value of the physical length of the protection area. AIXM 4.5 A textual description of the lighting system on the protection area. Indicates if the protection area is obstacle free. Identifies the Surface Characteristics that describe the Airport Heliport Protection Area. Identifies the surface area of the Airport Heliport Protection Area. A type of aerodrome operations, such as take-off, landing, taxiing, etc. The type of operations AIXM 4.5 Two aerodromes/heliports may be co-located sharing some or all of their ground facilities. E.g. a civil and a military aerodrome using the same runway. AIXM 4.5 A code indicating the extent of the collocation situation of the two aerodrome/heliports. AIXM 4.5 A free text description of the collocation situation, giving details about the facilities which are actually shared. This is the main aerodrome. This is the dependant airport which is using the facilities of the host airport. AIXM 4.5 A defined area on land or water (including any buildings, installations and equipment) intended to be used either wholly or in part for the arrival, departure and surface movement of aircraft/helicopters. AIXM 4.5 A coded designator for an Aerodrome/Heliport. The rules according to which this identifier should be formed are as follows: 1. If the AD/HP has an ICAO four letter location indicator, then this one will become the CODE_ID for the Aerodrome/Heliport; 2. If the AD/HP does not have an ICAO four letter location indicator, but it has an IATA three letter code, then this one will become the CODE_ID for the Aerodrome/Heliport; 3. If the AD/HP has neither an ICAO four letter location indicator nor an IATA three letter code, then an artificial generated code will be used. This will contain a group of letters and a number. The group of letters could be the 2 letter code of the State being responsible for the Aerodrome/Heliport and the number could be an integer between 0001 and 9999. AIXM 4.5 The full free text name of the aerodrome/heliport. AIXM 4.5 The four letter ICAO location indicator of the aerodrome/heliport, as listed in ICAO DOC 7910. AIXM 4.5 The three letter IATA designator of the aerodrome/heliport. AIXM 4.5 A code specifying the type of aerodrome. For example, aerodrome only, combined aerodrome/heliport or simple landing site. Indicating that the airport is certified according to the ICAO rules. An aerodrome or heliport not open for the public. Only for the use of the owners. AIXM 4.5 The primary organization type in terms of civil or military, which controls the airport. AIXM 4.5 A textual description of the aerodrome reference point (ARP). For example, 258°/985M from THR 01, geometric center of TLOF etc.. AIXM 4.5 The value of the aerodrome elevation. The vertical distance between the highest point of the landing area of an aerodrome and mean sea level. Note: this might be different from the elevation of the Aerodrome Reference Point. AIXM 4.5 The vertical distance from the stated elevation within which there is a defined confidence of the true position falling. AIXM 4.5 Attribute to take the \"Vertical Datum\" (viz. the tide gauge to determine MSL - for example, \"AMSTERDAM GAUGE\", \"NEWLYN\" etc.). AIXM 4.5 A free text description of the aerodrome site direction and distance from the city it serves or from another point easily distinguishable from the air. AIXM 4.5 The measured angle between Magnetic North and True North at a given point and at the time reported in dateMagneticVariation. By convention, the measure is expressed as a positive number if Magnetic North is to the east of True North and negative if Magnetic North is to the west of True North. Therefore, magnetic bearing + magnetic variation = true bearing. The following rule of thumb applies: ""variation east-magnetic least, variation west-magnetic best"". The accuracy of the Magnetic Variation in angle degrees. AIXM 4.5 The date on which the magnetic variation had this value. AIXM 4.5 The annual rate of change of the magnetic variation. AIXM 4.5 The value of the reference temperature at an aerodrome/heliport. AIXM 4.5 A textual description of the altimeter check locations. AIXM 4.5 A textual description of the secondary power supply available at the aerodrome/heliport. AIXM 4.5 A textual description of the wind direction indicator (WDI) and its position at the aerodrome/heliport. AIXM 4.5 A textual description of the landing direction indicator (LDI) and its position at the aerodrome/heliport. AIXM 4.5 The value of the transition altitude. AIXM 4.5 The value of the transition flight level. The mean lowest temperature of the coldest month of the year References: PANSOPS 8168, PART III Section 3 Chapter 4 BARO-VNAV Indicating that the airport is no longer in operational use, but it's infrastructure is still present and visible from the air. Identifies the Cities that the Airport serves. Identifes the Organisation Authority who manages the Airport. Identifies the Airport Reference Point. Defines the Airport boundaries. Indicates the Altimeter Source(s) located at a particular AirportHeliport. Identifies the Airport Contact. An instrument that measures and indicates the elevation at which an object, such as an airplane, is located Indications if the Altimeter is Remote or Local. Indicates if the Altimeter is Primary or Secondary. This represents the hours the altimeter is in service. AIXM 4.5 The responsibility that one organisation has for an airspace. Description: For example, this entity will indicate which State is de jure and which State is de facto responsible for the airspace. AIXM 4.5 A categorisation of the role that one organisation has for an airspace Description: For example, the airspace is under the jurisdiction of Organization/Authority, the airspace is delegated to the Organization/Authority for the provision of air traffic services. AIXM 4.5 A defined three dimensional region of space relevant to air traffic. AIXM 4.5 A code indicating the general structure or characteristics of a particular airspace. AIXM 4.5 A published sequence of characters allowing the identification of the airspace. Description: Typical examples are the ID of the Danger, Prohibited, Temporary segregated Areas, etc. AIXM 4.5 A type designator used locally (inside a State or a Region) for a particular airspace sub-category. AIXM 4.5 The name given to an airspace by a responsible authority. Description: It should be written as published, with no significance to upper or lower case letters. AIXM 4.5 A code indicating the Airspace designator is recorded in ICAO Doc. 7910. AIXM 4.5 The primary organization type in terms of civil or military, providing air traffic services within a designated airspace. AIXM 4.5 A flight level that indicates the division of airspace defined as lower and upper. AIXM 4.5 The role of the component in the airspace geometry. If the geometry of an airspace is composed of single volume, then the attributes of this association class may be left empty. AIXM 4.5 A code indicating how the component participates in the aggregation, such as addition, subtraction or intersection. AIXM 4.5 A number indicating the order of the component in the aggregation. AIXM 4.5 A qualified relation between two airspace, such as non-overlapping working/activation hours. AIXM 4.5 A code indicating how the two airspace are associated together. A defined volume in the air, described as horizontal projection with vertical limits. AIXM 4.5 The vertical position of the airspace ceiling. AIXM 4.5 The reference surface used for the value of the upper limit. For example, Mean Sea Level, Ground, standard pressure, etc.. AIXM 4.5 When specified, the maximum limit overrides the upper limit, in those parts of the airspace where the upper limit is situated below the maximum limit. AIXM 4.5 The reference surface used for the value of the maximum limit. For example, Mean Sea Level, Ground, standard pressure, etc.. AIXM 4.5 The vertical position of the airspace floor. AIXM 4.5 The reference surface used for the value of the lower limit. For example, Mean Sea Level, Ground, standard pressure, etc.. AIXM 4.5 When specified, the minimum limit overrides the lower limit, in those parts of the airspace where the lower limit is situated below the minimum limit. For example, an airspace that has "Upper FL 245, Lower 11 500 FT MSL but at least 2 000 FT GND'. AIXM 4.5 The reference surface used for the value of the minimum limit. For example, Mean Sea Level, Ground, standard pressure, etc. The width of the corridor, in case the AirspaceVolume has been originally defined as having a corridor shape. Conditions of usage for an airspace. Time and Level associated with a specific usage. AIXM 4.5 The primary situation or reason on the ground or in the air, which may have an impact on air traffic. The activation status of the airspace block. The specific users in terms of civil or military allowed to use the designated airspace when active. Indicates the type of Aircraft that are using the Airspace during its activation. The airspace class for an airspace level block. AIXM 4.5 A categorisation of airspace which determines the operating rules, flight requirements, and services provided. According to Annex 11, Appendix 4. AIXM 4.5 A physical or political border. In general, it will be the border between two countries or States but could also be a coastline, the description of the bank of an important river, or any other geographical shape which can be named and used to describe the border of an airspace. If two countries/States have more than one common border, each one will be an occurrence of this entity. AIXM 4.5 The name of the common border. If the two countries (States) have more than one common border, each one will have a different name. For example, France-Germany, France-Switzerland, Croatia-Serbia-north, Croatia-Serbia-south, etc.. AIXM 4.5 A code indicating the type of geographical border. The most common situation is the political boundary between two countries. An association class that defines the dependency between the geometry of an AirspaceVolume and the geometry of another (parent) Airspace. AIXM 4.5 A code indicating how the contributor Airspace impacts the geometry of the AirspaceVolume. An AIXM curve derived from GM_Curve and extended to include Horizontal Accuracy Properties The horizontal distance from the stated geographical position within which there is a defined confidence of the true position falling. An AIXM elevated curve derived from, which extends curve with properties that represent the vertical position (elevation, datum, accuracy). Elevation (above Mean Sea Level) refers to the top of the feature described by the Elevated Point. A distance separating the geoid and the ellipsoid at that position. In respect of WGS-84 geodetic datum, the difference between the WGS-84 ellipsoidal height and geoidal height represents geoidal undulation. Attribute to take the \"Vertical Datum\" (viz. the tide gauge to determine MSL - for example, \"AMSTERDAM GAUGE\", \"NEWLYN\" etc.). An AIXM Point derived from GM_Point that includes properties for describing a point with elevation and vertical extent. Used in obstacles, navaids, etc. Elevation (above Mean Sea Level) refers to the top of the feature described by the Elevated Point. A distance separating the geoid and the ellipsoid at that position. In respect of WGS-84 geodetic datum, the difference between the WGS-84 ellipsoidal height and geoidal height represents geoidal undulation. Attribute to take the \"Vertical Datum\" (viz. the tide gauge to determine MSL - for example, \"AMSTERDAM GAUGE\", \"NEWLYN\" etc.). An AIXM elevated surface derived from, which extends Surface with properties that represent the vertical position (elevation, datum, accuracy). Elevation (above Mean Sea Level) refers to the top of the feature described by the Elevated Point. A distance separating the geoid and the ellipsoid at that position. In respect of WGS-84 geodetic datum, the difference between the WGS-84 ellipsoidal height and geoidal height represents geoidal undulation. Attribute to take the \"Vertical Datum\" (viz. the tide gauge to determine MSL - for example, \"AMSTERDAM GAUGE\", \"NEWLYN\" etc.). AIXM Point containing horizontal accuracy data. In AIXM horizontal accuracy is considered a property of the geometry. The horizontal distance from the stated geographical position within which there is a defined confidence of the true position falling. An AIXM surface derived from GM_Surface and extended to include Horizontal Accuracy Properties The horizontal distance from the stated geographical position within which there is a defined confidence of the true position falling. AIXM 4.5 An entity used to describe operational hours, working hours, activation hours, hours of watch, etc. . AIXM 4.5 A code indicating the type of working hours. Indicates, for Timetables that have Timesheets using legal holidays, which are exactly the legal holidays to be applied. The related Organisation/Authority would typically be a State, but could also be an Organisation inside the State. AIXM 4.5 A component of a timetable, which must be specified with only one set of attributes, indicating the working hours of an other element. AIXM 4.5 A code indicating the time reference system (for example, 'UTC'). AIXM-ID: codeTimeRef AIXM-TYPE: codeTimeRef AIXM-DESCRIPTION: Time reference system AIXM-POSITION: 1 AIXM 4.5 The start date of the validity of a timesheet. Used together with DATE_VALID_TIL to express repetitive time periods like 15 May to 15 November. AIXM-ID: dateValidWef AIXM-TYPE: dateMonthDay AIXM-DESCRIPTION: Yearly start date AIXM-POSITION: 2 AIXM 4.5 The end date of the validity of a timesheet. Used together with DATE_VALID_WEF to express repetitive time periods like 15 May to 15 November. AIXM-ID: dateValidTil AIXM-TYPE: dateMonthDay AIXM-DESCRIPTION: Yearly end date AIXM-POSITION: 3 AIXM 4.5 A code indicating the day the timesheet is referring to. AIXM-ID: codeDay AIXM-TYPE: codeDay AIXM-DESCRIPTION: Affected day or start of affected period AIXM-POSITION: 4 AIXM 4.5 A code indicating the days affected by a timesheet, as follows: - if the value of this attribute is NULL, the TIME_TIL, CODE_EVENT_TIL, TIME_REL_EVENT_TIL and CODE_COMB_TIL must be considered as occurring on the day specified in the attribute CODE_DAY (e.g. MON from 07:30 till 16:00); - if the value of this attribute is not NULL, the TIME_TIL, CODE_EVENT_TIL, TIME_REL_EVENT_TIL and CODE_COMB_TIL must be considered as occurring on the day specified in this attribute and the period described by the timesheet is considered to be a continuous one (e.g. MON 07:30 till FRI 16:00); AIXM-ID: codeDayTil AIXM-TYPE: codeDay AIXM-DESCRIPTION: End of affected period AIXM-POSITION: 5 AIXM 4.5 The time of the day (specified in the CODE_DAY attribute) when the period described in the timesheet starts. AIXM-ID: timeWef AIXM-TYPE: time AIXM-DESCRIPTION: Start - Time AIXM-POSITION: 6 AIXM 4.5 A coded reference to an event (like sunset or sunrise), the occurrence of which indicates when the period described in the Timesheet starts. AIXM-ID: codeEventWef AIXM-TYPE: codeTimeEvent AIXM-DESCRIPTION: Start - Event AIXM-POSITION: 7 AIXM 4.5 The number of minutes before or after the event referred to in the CODE_EVENT_WEF attribute when the period described in the Timesheet starts. AIXM-ID: timeRelEventWef AIXM-TYPE: timeLap AIXM-DESCRIPTION: Start - Relative to event AIXM-POSITION: 8 AIXM 4.5 When both the TIME_WEF and CODE_EVENT_WEF values are not NULL, this attribute explains how the combination of the two attributes should be interpreted, i.e. which of the two moments in time is the beginning of the period described by the timesheet. AIXM-ID: codeCombWef AIXM-TYPE: codeCombTimeEvent AIXM-DESCRIPTION: Start - Interpretation AIXM-POSITION: 9 AIXM 4.5 The time of the day when the period described in the timesheet ends. AIXM-ID: timeTil AIXM-TYPE: time AIXM-DESCRIPTION: End - Time AIXM-POSITION: 10 AIXM 4.5 A coded reference to an event (like sunset or sunrise), the occurrence of which indicates when the period described in the Timesheet ends. AIXM-ID: codeEventTil AIXM-TYPE: codeTimeEvent AIXM-DESCRIPTION: End - Event AIXM-POSITION: 11 AIXM 4.5 The number of minutes before or after the event referred to in the CODE_EVENT_TIL attribute when the period described in the Timesheet ends. AIXM-ID: timeRelEventTil AIXM-TYPE: timeLap AIXM-DESCRIPTION: End - Relative to event AIXM-POSITION: 12 AIXM 4.5 When both the TIME_TIL and CODE_EVENT_TIL values are not NULL, this attribute explains how the combination of the two attributes should be interpreted, i.e. which of the two moments in time is the end of the period described by the timesheet. AIXM-ID: codeCombTil AIXM-TYPE: codeCombTimeEvent AIXM-DESCRIPTION: End - Interpretation AIXM-POSITION: 13 AIXM 4.5 An entity used to model special dates used in the description of the working/applicability/activation hours of various things, such as legal holidays, etc.. AIXM-ID: SpdType AIXM-DESCRIPTION: Special date - Version ++++ Change ++++ Set stereotype AIXM-IDENTIFIER_CLASS: SpdUidType AIXM-IDENTIFIER_ELEMENT: SpdUid AIXM-IDENTIFIER_DESCRIPTION: Special date - Version is a version of Special dates AIXM 4.5 The type of the special date. Examples:' legal holiday', 'busy Friday', etc. AIXM-ID: codeType AIXM-TYPE: codeSpecialDate AIXM-DESCRIPTION: Type ++++ Change ++++ Set stereotype AIXM 4.5 The date concerned. AIXM-ID: dateDay AIXM-TYPE: dateMonthDay AIXM-DESCRIPTION: Date ++++ Change ++++ Set stereotype AIXM 4.5 The year concerned. If no year is indicated, then the same date will be concerned every year. AIXM-ID: dateYear AIXM-TYPE: dateYear AIXM-DESCRIPTION: Year ++++ Change ++++ Set stereotype AIXM 4.5 The name associated with the day (especially for public holidays). AIXM-ID: txtName AIXM-TYPE: txtName AIXM-DESCRIPTION: Name AIXM-POSITION: 2 Precision Approach Radar (PAR) is designed for use as a landing aid rather than an aid for sequencing and spacing aircraft to provide lateral and vertical guidance to an aircraft pilot for landing up to the missed approach point. PAR equipment may be used as a primary landing aid or it may be used to monitor other types of approaches. It is designed to display range, azimuth, and elevation information. It is similar to an instrument landing system (ILS) but requires control instructions. One type of instrument approach that can make use of PAR is the ground-controlled approach (GCA). Denotes the type of Precision Approach Radar. The glideslope angle at which the PAR provides landing assistance. The accuracy of the glideslope angle at which the PAR provides landing assistance. A textual description of the relative location of the equipment. Identifies the Reflectors utilized with a PAR. Defines the type of Primary Surveillance Radar (i.e. ASR or ARSR). Indicates radar use of a RadarEquipment as a component of the radar service provided by a RadarSystem. Physical radar equipment like PAR, ARSR, ASR, SECRA, etc.. Textual name of the equipment. Serial number of the equipment. The applicable range of the equipment to detect aircraft. Accuracy of the applicable range of the equipment to detect aircraft. Indicates whether the component has dual frequency. Indicates whether a Moving Target Indicator (MTI) is available for the component. The MTI function eleminates ground clutter. Indicates how the component is powered if the primary power fails. The measured angle between Magnetic North and True North at a given point and at the time reported in dateMagneticVariation. By convention, the measure is expressed as a positive number if Magnetic North is to the east of True North and negative if Magnetic North is to the west of True North. Therefore, magnetic bearing + magnetic variation = true bearing. The following rule of thumb applies: ""variation east-magnetic least, variation west-magnetic best"". Accuracy of the magnetic variation. The date on which the magnetic variation had this value. Indicates if the radar equipment is digital or analogue. Indicates the equipment is for military use only. Indicates the equipment is for special use procedures only such as Helipads, etc. Indicates the equipment is to be only used for certain type of aircraft that are capable of using it. In some instances, the slope angle or procedure can only be flown by high performance aircraft. Identifies the contact information of the group or individual associated with the Radar Equipment. This will be a contact who is outside of the associated Organisation Authority for the Radar System. It could be the maintenance technician for the radar system. The geographical point at which the radar is located. One or more Radar Equipment providing radar services. Defines the type of service for the Radar System. Model of the equipment ( ASR-11, etc) General Terrain Monitors (GTM) monitor aircraft clearance above the highest terrain and obstacles in a general area The Identifier broadcasted for a Secondary Radar. Identifies the component(s) associated to a Radar System Defines the Offices that manage the Radar Equipment. Identifies the Airport Heliport at whicht the system is located or is near. Indicates what runway(s) the radar services. This is the location used when the radar system acts as a significant point. This location is usually the location of one of the radar equipments. Describes the various reflectors used with Precision Approach Radars. Indicates if the reflector is for Touchdown or a Runway End. The geographical point at which the Touchdown Reflector is located. Secondary Surveillance Radar (SSR aka Secondary Radar (SECRA)) is a radar system in which the object to be detected is fitted with the cooperative equipment in the form of a radio receiver/transmitter (transponder). Radar pulses transmitted from the searching transmitter/receiver (interrogator) site are received in the cooperative equipment and used to trigger a distinctive transmission from the transponder. This reply transmission, rather than a reflected signal, is then received back at the transmitter/receiver site for processing and display at an air traffic control facility. Mode S, or mode select, despite also being called a transponder radar system replacement for Air Traffic Control Radar Beacon System (ATCRBS), is actually a data packet protocol which can be used to augment ATCRBS transponder positioning equipment (radar and TCAS). Mode S is designed to fully interface with ATCRBS systems: mode S SSRs can interrogate ATCRBS transponders, and AIS-P transponders will also reply to older ATCRBS and TCAS interrogations. Indicates the SRR is autonomous or independent. Monopulse radar is an adaptation of conical scanning radar which sends additional information in the radar signal in order to avoid problems caused by rapid changes in signal strength. The system also makes jamming more difficult. Most radars designed since the 1960s are monopulse systems. Altitude for which the Radar provides vertical coverage. Distance for which the Radar provides vertical coverage. Azmuth for which the Radar provides vertical coverage. Indicates whether the antenna tilt is Variable or Fixed. Angle at which the antenna is tilted. The Automated Radar Terminal System (ARTS) is a system in the air traffic control system using radar intelligence to detect and display pertinent data such as flight identification, altitude, and position of aircraft operating in the terminal area. A Radar with this attribute automatically tracks controlled aircraft and presents alpha-numeric information adjacent to their targets. It may even automatically calculate the separation between different aircrafts and provide an alert if that separation is compromised as per the set standards. Identifies the Ground Station locations where the Radar Scope is utilized. Indicates whether a Video Map is available for the component. The geometry of surfaces used to define the altitude the length of a segment, holding pattern, etc., in function of the obstructions located in the area. Indicated the type of area being assessed such as 40:1, 72:1, MA, Final, etc a sequence number indicating a part of an assessment area. The slope value of the extent Highest of the minimum altitudes in controlling obstacles plus the altitude adjustments (operational factors) The altitude at the bottom of the assessment area AirMAT Low to high gradient within the airspace AirMAT Specifies zones within obstruction identification surfaces (OIS) AirMAT Identifier for the safety regulations in effect within the zone AirMAT Description of the use of the zone Identifies the aircraft category for which the Obstacle Assessment Area is evaluated for. Identifies the extent of the Obstacle Assessment Area. [FAA 8260.3] The highest airspace, obstacle or terrain relative to a prescribed plane within a specified area. NOTE: In precision approach procedures where obstacles penetrate the approach surface, the controlling obstacle is the one which results in the requirement for the highest decision height (DH). required altitude adjustment above any obstacle or terrain within a defined safety buffer region. The safety buffer allows for errors in the air and in the accuracy of data such as obstacle accuracy. This together with other adjustments (human factor adjustments, lighting adjustments, altimeter adjustments, etc). give the minimum altitude. The value of the minimum obstacle clearance altitude. A code indicating whether the controlling obstacle penetrates the assessment surfaces. Rule: if surfacePenetration is "NO", then slopePenetration will not have a value. A value calculated by dividing 102.0 (a constant) with the angle of the glidepath "Close-In Obstacles" are those that would penetrate the 40:1 OCS and would require a climb gradient to 200 feet or less above the departure end of runway. So if an aircraft climbs at the minimum standard 200 feet per NM, "Close-In Obstacles" are those within 1 NM from the end of the runway. Operational factors applied to obstacle clearance altitudes to produce the safest usable altitude. Ability to adjust the segment altitude Adjustments applicable to either local altimeter or secondary altimeter. Applicable to the final minimums based on altimeter settings. Set to Y if primary altimeter. Not applicable for TAA or MSA. The adjustment value The geometry of surfaces that define altitude levels and the structure of an area used to evaluate obstacles for determining holding patterns. Max altitude allowed for all aircraft categories at all defined speeds A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance. Minimum altitude allowed for all aircraft categories at all defined speeds A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance. Restricted speed for containment in a smaller pattern Number of the holding template Evaluation is for turbulentAir Leg length for when holding is toward the navaid Leg length for when holding is away the navaid Identifies the point for which safe holding id designed for. Identifies the Unplanned Holding determined by the Holding Assessment. Provides the location relative to Used only for MSA/ESA. The bearing from a given point to the obstruction. The distance from a given point to the obstruction. The type of point referenced when determining the bearing and distance to the obstruction. Example MSA/ESA center point, DER Indicates the obstacle position relative to the centerline Airspace evaluation controlling obstacle (the highest terrain point). Identifies the location of the controlling terrain. AIXM 4.5 A table of consecutive cruising levels described under vertical separation criteria limited by an upper and lower level and used by General Air Traffic. AIXM 4.5 A code identifying the table of discrete cruising levels. For example, ICAO IFR, ICAO VFR, ICAO IFR RVSM, etc. AIXM 4.5 The textual description of the cruising levels table. An indication whether the table is according to the ICAO SARPS. The general rule by which standard level columns are used in a national airspace or within a region. For example, in France, IFR odd RVSM levels are used between 0 and 179 degrees. A code indicating the flight rules observed by the aircraft. For example IFR or VFR. The start angle of the sector relative to the North. The end angle of the sector relative to the North. A code indicating the direction of the zero bearing. For example, magnetic north or true north. AIXM 4.5 A column of consecutive cruising levels within a standard level table. AIXM 4.5 A code identifying the column. For example, ODD or EVEN. The unit of measurement used by the column. A code indicating that reduced vertical separation minima is applied in the column. AIXM 4.5 A specified cruising level, part of a column within a table of discrete cruising levels used by General Air Traffic. AIXM 4.5 The value of the cruising level. A limitation, such as coverage, usability, etc., of a navaid equipment or service frequency AIXM 4.5 A code indicating the type of radio navigation aid limitation. AIXM 4.5 The value of the scalloping angle, which may affect the radial reading of a VOR or TACAN in plus or minus. Identifies the signal restrictions associated with the PAR. Identifies the Circle Sector defined by a Radio Frequency Area. Designated part of a surface movement area where a specific frequency is required by air traffic control or ground control Information required to enable contact with the responsible person and/or organisation. This model is derived from ISO19115-2003:Geographic Information- Metadata The official name of the contact. The official title of the contact. Detailed text description of what the contact is/does, and how it may be accessed and used. On-line or Network information that can be used to contact the individual or organisation, including eMail address and web site page. The official name telecomunication netwrok on which the resource is located. Location (address) for on-line access using a Uniform Resource Locator address or similar addressing scheme such as http://www.statkart.no/isotc211 The connection protocol to be used. The address of the electronic mailbox of the responsible organisation or individual. Physical address at which the organization or individual may be contacted. Derived from ISO19115-2003 The street address line for the location. More than one address line may be used. The city of the location or organisation. The state or province of the location or organisation. The ZIP or other postal code for the location or organisation. The country of the physical address for the location or orgainsation. Full name, not ISO 3166 abbreviations. Telephone numbers at which the organisation or individual may be contacted. From ISO19115-2003 The telephone number by which individuals can speak to the responsible organisation or individual. The telephone number of a facsimile machine for the responsible organisation or individual. Describes the navigation capability of the aircraft. AIXM 4.5 Indication of the equipment and the certification for a specified capability; i.e.: RNAV, RVSM, etc. AIXM 4.5 A specific aircraft type, such as airplane, balloon, helicopter, etc., and/or having specific equipment (certification), such as RNAV or RVSM. AIXM 4.5 Indicating the type of an aircraft. AIXM 4.5 Indicating the type of aircraft engine. AIXM 4.5 A coded indication for the number of engines of an aircraft. AIXM 4.5 A coded aircraft type designator assigned by ICAO to all aircraft heavier than micro-/ultra-light. Classification of aircraft based on 1.3 times stall speed in landing configuration at maximum certified landing mass. The distance between the wing tips of the aircraft. Indicates whether the Aircraft Characteristic concerns aircraft with larger or smaller wingspan. AirMAT A classification of aircraft by wing span dimmensions. It can be used to indicate the size of aircraft that a taxiway can handle. The maximum aircraft take-off weight. Indicates whether the Aircraft Characteristic concerns aircraft with bigger or smaller weight. The maximum number of passengers Indicates whether the Aircraft Characteristic concerns aircraft with larger or smaller number of passengers. A speed (IAS) that can be maintained by the aircraft. Indicates whether the speed is a maximum or minimum imposed value. The wake turbulence category of the aircraft. Identifies the capabilities of an aircraft. AIXM 4.5 A specific flight type, such as IFR/VFR, national/international, OAT/GAT, etc. AIXM 4.5 A code indicating a specified type of a flight, such as OAT/GAT. AIXM 4.5 A code indicating a specific flight rule, such as IFR or VFR. AIXM 4.5 The designation of a special status for a flight (e.g. ""HEAD"" for Head of State, ""STATE"" for State aircraft other than that of the Head of State). AIXM 4.5 A code indicating whether it is a military flight. AIXM 4.5 A code indicating the origin of the flight with regard to the national borders. AIXM 4.5 A code indicating the purpose of the flight. An elementary light source, part of a lighting system. A code indicating the colour of the lights in the group. A code indicating the relative intensity of the lights in the group. The exact value of the intensity of the lights in the group. A code indicating the type of light source. An indication of the operational status of the light element. The list of values include: "in construction", "operational", "unavailable". Identifies the geospatial location of the Light Element. A combination of an airspace layer (between two vertical levels) and a time table. Upper limit of the block. The data type also allows a special non-numerical value "CEILING", meaning "the top of the airspace. This can useful in the case of Airspace that have a non-constant upper limit. A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance: QFE, QNH, STD. Lower limit of the block. The data type also allows a special non-numerical value "FLOOR" meaning "the bottom of the airspace". This can useful in the case of Airspace that have a non-constant lower limit. A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance: QFE, QNH, STD. Indicates how the upper and/or lower altitude values should be interpreted. A group of properties that help describe a 3D pattern based on start angle, stop angle, inner distance, outer distance and upper/lower altitude. Direction indicating clock-wise or counter-clockwise Beginning of angle Ending of angle A code indicating the type of angle: magnetic, bearing, VOR radial. A code indicating a direction with regard to a reference point. Angle sector volume inner limit Angle sector volume outer limit When the codeDescrDistVer is 'B', this it the upper altitude limit of the TAA. A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance: QFE, QNH, STD. Minimum sector altitude. It is the highest of the minimum altitudes in controlling obstacles plus the altitude adjustments (operational factors) A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance: QFE, QNH, STD. AIXM 4.5 The provision of tangible goods, information, instructions, guidance, etc. to pillots, flights, aircraft operators and other personnel and institutions concerned with flight operations. AIXM 4.5 The destination (arriving, departing, etc.) of the flights for which the information is provided. The order of priority of the service, such as "primary" or "alternate". AIXM 4.5 A code indicating whether the service is compliant with the ICAO standards and recomended practices specified for this type of service. A free text name by which the service is identified. Indicates the operational capability of the service. Identifies the Unit for which Services are provided. The service that is provided on the radio frequency. AIXM 4.5 One or two (communication) frequencies used to provide a service. For one way broadcast (such as ATIS) the frequencyTransmission attribute only will be used. The type of communication channel. AIXM 4.5 A code indicating the role of the communication channel, interms of primary, alternate, emergency, etc. AIXM 4.5 The value of the transmission frequency. AIXM 4.5 The value of the reception frequency. The identifier of the radio channel on which the communication takes place. A specified code used for data link, such as used for logon to an ATS unit. AIXM 4.5 A code indicating the type of emission, as defined at the 1979 ITU World Administrative Radio Conference. For example, A3E, etc.. AIXM 4.5 A code indicating if whether or not a frequency treats "selective call". Indicates if the communication channel has been flight checked. Indicates the operational capability of the operational channel. Indicates the eventual directionality of the communication channel. The schedule by which the radio frequency is normally used. AIXM 4.5 Information about the operational identifier by which the provider of the service is called and the language used. AIXM 4.5 The full textual service provider identification or callsign for a particular frequency. For example, Athinai Control, Malmoe Radar, etc.. A code indicating the language in which the service is provided on a particular frequency, as associated with a particular call sign. Pilot controlled lighting Service providing airborne control of lights by keying the aircraft's microphone. Often available at locations without specified hours for lighting and where there is no control tower or Flight Service Station (FSS); or when the tower or FSS is closed (locations with part-time tower or FSS). Pilot controlled lighting Type of pilot controlled lighting service - standard or non-standard. Pilot controlled lighting The length of time the lighting is illuminated, normally 15 minutes. Pilot controlled lighting The number of intensity steps/levels for a particular type of lighting system. Pilot controlled lighting The intensity step/level of the lighting system when not in use. The radio frequency to be used by the pilot for the activation of the system. Pilot controlled lighting Descriptions of pilot controlled lighting systems for each airport having either FAA-approved systems, standard systems of other countries, or non-standard systems. The desciption explains the type lights, method of control, and operating frequency in clear text. Identifies the Light Activation that the Pilot Controlled Lighting controlls. Identifies the Ground Light System that the Pilot Controlled Lighting activates. Identifies the Approach Lighting System that the Pilot Controlled Lighting activates. A kind of service that consists in the provision of aeronautical, meteorological, traffic and related information to aircraft crew and other actors involved in flight operations, in flight or on the ground. AIXM 4.5 The type of information service provided. AIXM 4.5 Indicating whether the service is provided as voice message. Indicates whether the service is available via data-link. Identifies the Procedure for which the Information Service is concerned. A kind of service that provides control and separation services, to aircraft in the air and on the ground. AIXM 4.5 A code indicating if the service is provided with radar assistance. Indicates if Controller-Pilot Data-Link Communication (CPDLC) is available in support of the service. The channel on which the data-link takes place , if applicable. A kind of service that provides control and separation services, to aircraft at the airport. AIXM 4.5 The type of ground traffic control service provided. A kind of service that provides control and separation services to aircraft in the air. AIXM 4.5 The type of air traffic control service provided. A kind of service that provides flight planning and flow management operations. AIXM 4.5 The type of air traffic flow management service provided. A kind of service that provides alerting, search and rescue functions. AIXM 4.5 The type of air traffic flow management service provided. AIXM 4.5 Services that provide maintenance of the airport infrastructure and dirrect support to aircraft on the ground. AIXM 4.5 A free text description of the facilities associated with the service. AIXM 4.5 Passenger services and facilities available at an aerodrome/heliport (like medical facilities) or in the surrounding area (hotels in city etc.). AIXM 4.5 A code indicating the type of passenger facility/service available. A kind of airport service that provides rescue and fire fighting capabilities for aircraft in emergency at and around the airport. AIXM 4.5 A standard categorisation of the rescue and fire-fighting capabilities of an aerodrome on the basis of the length and fuselage width of the largest aircraft to be rescued. AIXM 4.5 A code indicating the standard referred to by the fire fighting category value. A kind of service that proivides clearance capabilities for airport surfaces. Description of the snow removal priorities. A kind of service that provides supplies (fuel, oil, oxygen, etc.) to aircraft. Note: instances should be grouped by provider (associated Unit) The types of oil supplied. AIXM 4.5 Fuel types used for aircraft/helicopters. AIXM 4.5 A code indicating a type of fuel for aircraft and helicopters (e.g. OCT73, OCT80-87, AVGAS, OCT100-130, OCT115-145, MOGAS, JET, A1, A1+, B, JP4, JP5). AIXM 4.5 A textual description of the fuel. AIXM 4.5 NITROGEN supplies in aviation. AIXM 4.5 The type of nitrogen supplies for aviation usage. AIXM 4.5 Oil types used for aircraft/helicopters. AIXM 4.5 A code indicating a category of oil used in aircraft (e.g. TURBO, AVIA, HYD). AIXM 4.5 A textual description of the oil available. AIXM 4.5 Oxygen supplies used in aviation. AIXM 4.5 The type of oxygen supplies for aviation usage. Defines the location of a designated point using a combination of angles and distances based on the guidance service. The set of angles and distances must not under specify the location. The indications that are part of the PointReference must locate the same designated point. Describes the role of the defined point reference. Example: DME, INT, recommended navaid, fix tolerance Because the fix may be received early, protection against obstacles must be provided from a line perpendicular to the flight course. PriorFixTolerance indicates the error distance (from the fix to the earliest point where the fix may be received along the flight course. Indicates the error distance (from the fix to the latest point where the fix may be received along the flight course. The point reference occurs at (locates) DesignatedPoint. Indicates the angle from the navigation aid(s) or designated point on which the fix is based. Indicates the distance from the navigation aid(s) or designated point on which the fix is based. The dimensions of the fix tolerance area are determined by the system use accuracy of the navigation aid(s) on which the fix is based, and the distance from the facility. Indicates a point associated with a defined segment. Indicating the type of position report required by an ATC Unit. Eg.: compulsory or on request. Indicates if the aircraft is required to fly directly over the fix. If code is Yes, then it is a 'fly-over' waypoint. If the code is No, then the associated fix is a 'fly-by' waypoint. [ICAO] Waypoints are identified as either flyover or fly-by. Fly-by waypoint. A waypoint which requires turn anticipation to allow tangential interception of the next segment of a route or procedure Flyover waypoint. A waypoint at which a turn is initiated in order to join the next segment of a route or procedure. A point used for RNAV procedures/routes. Radar guidance is possible for reaching this point. Segment point is located using specific makeup known as a reference. The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). Indicates a point or a condition associated with a defined segment leg. Identifies the function or position the point plays in the approach procedure. The lead radial provides information for aircraft with single receiving equipment to change the receiver to the localizer or other facility providing the course guidance and to ensure the aircraft is within the clearance coverage area of LOC facilities before changing frequency or accepting oncourse indication. The lead DME , like the lead Radial, provides information for aircraft with single receiving equipment to change the receiver to the localizer or other facility providing the course guidance and to ensure the aircraft is within the clearance coverage area of LOC facilities before changing frequency or accepting oncourse indication. Indicates the point is also a Final Approach Course Fix (FACF). Indicates a point associated with a defined EnRoute segment. Free flight is a an air traffic control method that uses no centralized control (e.g. air traffic controllers). Instead, parts of airspace are reserved dynamically and automatically in a distributed way using computer communication to ensure the required separation between aircraft A code indicating that the point has a specific role in the reduced vertical separation minima (RVSM) context. The recommended turn radius when continuing on the previous segment of the route (start point) or when continuing on the next segment of the route(end point). A code indicating the usage of the point in the case of a military training route. AIXM 4.5 An angular reference from a navaid or with reference to a designated point. AIXM 4.5 The indication of a bearing (at a given point) by the measurement of the angle between the bearing and either True North or Magnetic North (this should appear explicitly or implicitly). The angle is measured clockwise from 0 degrees up to but not including 360 degrees. The value can also be a VOR radial. For example, Westward is expressed as 270. A code indicating the direction of the zero bearing. For example, magnetic north or true north. Code indicating the if the angle is TO or FROM the Navaid or Designated Point that is used. The indication of a bearing (at a given point) by the measurement of the angle between the bearing and True North. The angle is measured clockwise from 0 degrees up to but not including 360 degrees. The value can also be a VOR radial. For example, Westward is expressed as 270. The angle expressed as compass direction. The lowest altitude that an aircraft can receive signal. The angle indication occurs at (locates) DesignatedPoint. The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). AIXM 4.5 A distance reference from a navaid or with reference to a designated point. AIXM 4.5 The value of the distance. The lowest altitude that an aircraft can receive signal. indicates the distance is from distance measuring equipment or just a simple distance The distance indication occurs at (locates) DesignatedPoint. The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). Indicates the role of the AngleIndication in the PointReference (for example, along track versus intersecting). Defines if the angle indication provides the course guidance for the segment. Provides details about the level of responsibility of an OrganisationAuthority for a Navaid Equipment. The type of relationship between the NavaidEquipment and the OrganizationAuthority. Provides details about the level of responsibility of an OrganisationAuthority for a Special Navigation System Station. The type of responsibility of the OrganizationAuthority for the Special Navigation System Station. AIXM 4.5 A component of an MLS consisting of an SHF transmitter and associated equipment, radiating signals in a volume of airspace served by the MLS, thereby furnishing azimuth indications to aircraft approaching the runway or back azimuth indications to aircraft departing from the runway or performing a missed approach procedure. AIXM 4.5 A code indicating if it is 'normal' or 'back' azimuth equipment. AIXM 4.5 The measured angle between the azimuth beam and True North at the azimuth antenna. Note : The True North is the north point at which the meridian lines meet. Accuracy of the measured angle between the azimuth beam and True North at the azimuth antenna AIXM 4.5 The measured angle between the direction of the azimuth beam and Magnetic North at the azimuth antenna. AIXM 4.5 The value of the angle within which the azimuth indication is proportional to the deviation from the azimuth zero indication direction, and left of this direction from the azimuth antenna. AIXM 4.5 The value of the angle within which the azimuth indication is proportional to the deviation from the azimuth zero indication direction, and right of this direction from the azimuth antenna. AIXM 4.5 The value of the angle from the zero indication direction within which the azimuth indication is usable, and left of this direction from the azimuth antenna. AIXM 4.5 The value of the angle from the zero indication direction within which the azimuth indication is usable, and right of this direction from the azimuth antenna. AIXM 4.5 A code indicating the channel on which the Microwave Landing System is operating. A point established to test the Inertial Navigation System in the aircraft. A VOR test transmits a test signal used to determine the accuracy of a VOR receiver on the ground or airbourne. Indicates the navigation aid on which the fix is based. Provides details about the level of responsibility of an OrganisationAuthority for a Special Navigation System. The type of responsibility of the OrganizationAuthority for the Special Navigation System. AIXM 4.5 UHF distance measuring equipment, operating on the interrogation-answer principle. The time required for the round trip of the signal exchange is measured in the airborne DME unit and translated into distance. AIXM 4.5 A code indicating a particular type of UHF distance measuring equipment. Examples: DME/N, DME/W, DME/P. AIXM 4.5 The channel of the DME. See Annex 10, Table A, end of Chapter 3 for channelling details and for a list of allowable values. AIXM 4.5 The frequency of a virtual VHF facility paired with the DME according to ICAO Annex 10, table A, ch.3. AIXM 4.5 The value of the displacement, for example, the distance from the DME antenna to where the zero range indication occurs. AIXM 4.5 A component of an MLS consisting of an SHF transmitter, and associated equipment radiating signals within a volume of airspace served by the MLS, thereby furnishing elevation information as an angular value to aircraft approaching the runway. AIXM 4.5 The normal glide path angle for the MLS installation. AIXM 4.5 The value of the lowest elevation angle authorized for an MLS procedure. AIXM 4.5 The value of the span angle of the elevation transmitter signal between the lower and the upper limits. Accuracy of the elevation angle. AIXM 4.5 A component of an ILS consisting of a UHF transmitter radiating signals and providing a straight line descent path in the vertical plane containing the center line of the runway served by the ILS, and thereby furnishing descent information down to the lowest authorized decision height or to the surface of a runway, depending on the Facility Performance Category of the ILS. AIXM 4.5 The frequency value of the glide path indicator. AIXM 4.5 The angle of the glide path. Accuracy of the Glidepath angle. AIXM 4.5 The value of the ILS Reference Datum Height (ILS RDH). Accuracy of the value of the ILS Reference Datum Height (ILS RDH). AIXM 4.5 A component of an ILS consisting of a VHF transmitter, radiating signals in the direction served by the ILS, to provide a straight line descent path in the vertical plane containing the center line of the runway. AIXM 4.5 The frequency of the localizer. AIXM 4.5 The measured angle between the localizer beam and Magnetic North at the localizer antenna. Accuracy of the measured angle between the localizer beam and Magnetic North at the localizer antenna. AIXM 4.5 The measured angle between the localizer beam and True North at the localizer antenna. Note : The True North is the north point at which the meridian lines meet. Accuracy of the measured angle between the localizer beam and True North at the localizer antenna. AIXM 4.5 The angular difference between True North and the station declination (Magnetic North - as indicated by the station). AIXM 4.5 The localizer course width, in degrees. Accuracy of the localizer course width, in degrees. AIXM 4.5 A code indicating the usability of the localizer signal in the back course sector. AIXM 4.5 A marker beacon serving to identify a particular location in space by means of a 75MHz transmitter which transmits a directional signal to be received by aircraft flying overhead. AIXM 4.5 A code indicating the class of the radio marker. For example, fan marker, low-powered fan marker, Z marker. AIXM 4.5 The value of the radio emission frequency. AIXM 4.5 The true bearing of the minor axis of the marker beacon. (source: ARINC 424 Specification) One or more Navaid Equipment providing navigation services. The Navaid Equipment share business rules like paired frequencies. Type of the navaid service such as ILS, MLS, VORTAC, VOR/DME, etc. The coded identifier given to the navaid system. The long name given to the composite navaid. A code indicating the landing precision of a navaid when used as a landing system. Indicates the state of the navaid. Indicates if the navaid has been flight checked. Indicates that the navaid is installed at a particular landing area. Navaid system can have components that perform a specific function for aircraft guidance. This is the location used when the navaid acts as a significant point. This location is usually the location of one of the navaid equipments. This represents the hours the equipment is in service. Indicates that the navaid is installed at a particular landing area. Typically used for ILS and MLS systems. Indicates navigation use of a NavaidEquipment as a component of the navigation service provided by a Navaid. For example the DME NavaidEquipment is a NavaidComponent of an ILS system. The DME may be collocated with the Localizer and the DME may provide the navigable location for the Navaid service. Set of navaid equipment that are collocated. All Navaid equipment that has the same value for this property are collocated together. For example in a VOR/DME Navaid the VOR and DME navaid equipment will be assigned the same collocationGroup number = 1. For example an ILS might have a Localizer with collocation Group number = 1 and collocated DME and Glidepath sharing collocationGroup number = 2. A code indicating the position, in a navaid landing system, of the markers situated on the centerline of a runway. For example: outer, middle, etc.. Indicates the navaid equipment used to specify the navigable location of the Navaid when the navaid is used as significant point A physical navaid equipment like VOR, DME, localizer, TACAN, etc.. The identifying code given to the navaid. The long name given to the navaid equipment. A code indicating the type of emission, as defined at the 1979 ITU World Administrative Radio Conference. Indicates if the navaid equipment is mobile. AIXM 4.5 The measured angle between Magnetic North and True North at the VOR and at the time reported in dateMagneticVariation. By convention, the measure is expressed as a positive number if Magnetic North is to the east of True North and negative if Magnetic North is to the west of True North. Therefore, magnetic bearing + magnetic variation = true bearing. The following rule of thumb applies: ""variation east-magnetic least, variation west-magnetic best"". The accuracy of the measured angle between Magnetic North and True North at the VOR and at the time reported in dateMagneticVariation AIXM 4.5 The year the magnetic variation was measured. Indicates the state of the navaid. Indicates if the navaid equipment has been flight checked. This is the location where the navaid equipment resides. This represents the hours the equiprment is not monitored. Represents the organization responsible for the equipment. AIXM 4.5 A point established and marked on the surface of an aerodrome allowing the checking of a navigation system (like VOR, GNSS, etc.) or initialisation of an inertial navigation system. The textual description describing the location of the checkpoint. Indicates the position of the checkpoint; airbourne or ground Indicating the upper limit of the block in which the check should be conducted. A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance: QFE, QNH, STD. Indicating the lower limit of the block in which the check should be conducted. A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance: QFE, QNH, STD. Indicates how the upper and/or lower altitude values should be interpreted. AIXM 4.5 The value of the distance from the checkpoint to the navaid. AIXM 4.5 The indication of a bearing (at a given point) by the measurement of the angle between the checkpoint and the navaid equipment (VOR) Identifies the point of he checkpoint. Identifies the airport for which the checkpoint is established. Simplified Directional Facility (SDF) provides a final approach course similar to that of the ILS localizer although is not as precise as Localizer. It does not provide glide slope information. The SDF transmits signals within the range of 108.10 to 111.95 MHz. The approach techniques and procedures used in an SDF instrument approach are essentially the same as those employed in executing a standard localizer approach except the SDF course may not be aligned with the runway and the course may be wider, resulting in less precision. Usable off-course indications are limited to 35 degrees either side of the course centerline. Instrument indications received beyond 35 degrees should be disregarded. This angle is generally not more than 3 degrees. The SDF signal is fixed at either 6 degrees or 12 degrees as necessary to provide maximum flyability and optimum course quality. AIXM 4.5 The frequency of the localizer. AIXM 4.5 The measured angle between the localizer beam and Magnetic North at the localizer antenna. AIXM 4.5 The measured angle between the localizer beam and True North at the localizer antenna. Note : The True North is the north point at which the meridian lines meet. AIXM 4.5 A Non-directional radio beacon. A low or medium frequency radio beacon which transmits signals whereby the pilot of an aircraft properly equipped can determine bearings and 'home in' on the station. AIXM 4.5 The frequency of the NDB emission. AIXM 4.5 The class of the NDB. For example, NDB or Locator. The emission band for the NDB AIXM 4.5 A land based station of a special navigation system. AIXM 4.5 The textual name of the station. AIXM 4.5 A code indicating the type of service within the chain. E.g. Master, Red Slave (DECCA), Slave (LORAN) etc.. AIXM 4.5 The value of the emission frequency. AIXM 4.5 A code indicating the type of emission, as defined at the 1979 ITU World Administrative Radio Conference. Station provides a service in a special navigation system chain Special navigation system station - Version is operating according to Special navigation system station Special navigation system station - Version is under responsibility of Organisaton or authority Represents the graphical location of the Special Navigation Station. AIXM 4.5 A VHF omnidirectional radio range beacon. A short-range, very-high-frequency omnidirectional beacon which provides an indication in the aircraft of the bearing of the beacon, or left-right track indication. AIXM 4.5 A code indicating a type of VOR, e.g. conventional VOR or Doppler VOR. AIXM 4.5 The value of the frequency. AIXM 4.5 A code indicating the direction of the 'zero bearing' provided by the station. For example: magnetic north, true north. AIXM 4.5 The angular difference between True North and the station declination (Magnetic North - as indicated by the station). AIXM 4.5 A UHF Tactical Air Navigation beacon. A navigation system developed by military and naval forces providing, as far as the navigating pilot is concerned and for suitably equipped aircraft, the same indication as a VOR/DME system. AIXM 4.5 A code indicating the channel of the TACAN system. AIXM 4.5 The angular difference between the direction of the 'zero bearing' indicated by the station and the direction of the True North. AIXM 4.5 A wide area (worldwide) navigation system based on a chain of land stations or a satellite constellation providing radio frequency signals which can be used by airborne equipment to determine at least, the aircrafts two-dimensional position or, depending on the capability of the system, the three-dimensional position. AIXM 4.5 A code indicating the type of special navigation system. For example, LORAN, DECCA, GNSS, etc. AIXM 4.5 The coded identifier of a special navigation system chain. AIXM 4.5 The textual name of the chain of a special navigation system. For example, Mangern Chain Special navigation system - Version is under the responsibility of Organisaton or authority AIXM 4.5 A geographical location not marked by the site of a radio navigation aid, used in defining an ATS route, the flight path of an aircraft or for other navigation or ATS purposes. AIXM 4.5 The coded designator of the point. For example, the five-letter ICAO name of the point, etc.. AIXM 4.5 The specific type of designated point whether published by the State, published by the ICAO or created by another agency for convenience of identification etc. AIXM 4.5 The full textual name of a designated point, if any. For example, 'GOTAN Intersection' for GOTAN. Name may also be used to identify an unnamed point (See ARINC 424 for unnamed points. Represents the graphical location of the designated point The DesignatedPoint is located above the centre of the TLOF. The designated Point indentifier is unique within all other designated points associated with the same aerodrome/heliport. Typically, such points are used for RNAV procedures at that aerodrome/heliport. The DesignatedPoint is over a centerline point. AIXM 4.5 A significant point's use and relative location to an airspace. AIXM 4.5 A code indicating the way a significant point is used in association to airspace. Description: Ex: entry point, exit point, etc. A code indicating the location of a significant point in relation to airspace. Description: Ex: In, Out, On Border. defines a point in the airspace The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). A general text note for a feature or for one of its properties. The name of the feature property for which this note is relevant, if applicable. If no propertyName is specified, then the Note is relevant for the feature as a whole. The note content expressed in a specific language. As a minimum, all Notes shall be expressed in English. The text of the Note, in a specific language. AIXM 4.5 A feature used to model various Organisations and Authorities. For example: ATS Organisations, Aircraft Operating Agencies, States, Groups of States, etc. AIXM 4.5 The full official name of the State, Organisation, Authority, aircraft operating agency, handling agency etc. AIXM 4.5 A coded identifier of the organisation, authority, agency or unit. Description: CA= Canada, FAA= Federal Aviation Administration, UK = United Kingdom, ICAO = International Civil Aviation Organization AIXM 4.5 A code indicating the nature of an authority in terms of its status or business role in ATM. For example: State, group of States, organisation within a State, aircraft operating agency, etc. Identifies the contact for the Organisation. AIXM 4.5 This entity type serves to realise the different 'two-way associations' which may exist between 'organisations/authorities' of the same and/or different types. Example: - an organisation/authority/agency may consist of any number of other organisations/authorities/agencies; AIXM 4.5 The kind of association between two Organisations/Authorities. Identifies the Child Organisation. Identifies the Parent Organisation. AIXM 4.5 A generic term meaning variously all types of 'units' providing all types of services. This includes particularly Air Traffic Management (ATM) Units but also units which are not express verbs included in ATM such as SAR, MET, COM etc. AIXM 4.5 The full textual name of a unit. This name must be established according to the rules specified by ICAO, viz.: in the official language of the country, transposed into the Latin Alphabet where necessary. AIXM 4.5 A type by which the Unit is recognised, ussualy related to the standard type of services provided by it (e.g. area control center, advisory center, aeronautical information services office). AIXM 4.5 A code indicating whether the Unit is setup according to the ICAO SARPS. AIXM 4.5 A coded designator associated with the Unit. For example, the ICAO Location Indicator of an ACC, as listed in DOC 7910. Indicates whether the Unit is civil, military or joint. Identifies the geographical point of the Unit. Identifies the Airport of Heliport where the Unit is located. Identifies the Organisation that supervises the Unit. Identifies the schedule by which the Unit works. This association class describes the operational/functional relation that exists between a Unit and a RelatedUnit. AIXM 4.5 The kind of dependency between the Unit and the RelatedUnit. A part of the vertical structure that can be represented as point, line or polygon with vertical extent. The horizontal projection of an obstacle is a Point. The horizontal projection of an obstacle is a Curve. The horizontal projection of an obstacle is a Shape. The lights marking the position of an obstacle at night or in low visibility conditions. Indicates if the lighting is ICAO standard as described in Annex 14. A code indicating the operational status of the lighting. For example, serviceable, unserviceable, work in progress, etc. Identifies the schedule on which the lighting is active. Identifies the Light Elements of which the Vertical Structure Lighting is composed of. Identifies the Vertical Structure on which the lighting is installed on. AirMAT An area defined by ICAO for the purpose of collecting obstacle data in electronic format, as necessary to satisfy requirements of air navigation systems or functions. Indicates the type of the obstacle coverage area. Examples: Area 1, 2, 3 or 4. AirMAT Obstruction identification surface that obstructing area represents Used to identify obstacles within Area 2 or Area 3 (ICAO Annex 15). Used to identify obstacles within a Area 4 (ICAO Annex 15) Used to identify obstacles within a State Territory (Area 1 - ICAO Annex 15) Identifies the extent of the Obstacle Area. Identifies the obstacle(s) associated with the obstacle area. All fixed (whether temporary or permanent) and mobile objects, or parts thereof that extend above the surface of the Earth. Those vertical structures that are located on an area intended for the surface movement of aircraft or that extend above a defined surface intended to protect aircraft in flight are considered obstacles. The name of the vertical structure, if applicable, A code indicating the type of vertical structure, such as building, tower, cable, etc. This property enables the provision of information about the construction of the man-made object that constitutes the vertical structure. The predominant material used in the vertical structure. A simple indication that the obstacle is lighted, when no further details are available. The general layout of the external paint or another marking element, intended to increase the visibility of the vertical structure. The principal colour of the marking. The secondary colour for the marking. Indicates if the markings comply with the ICAO standard, as described in Annex 14. A flag indicating whether the vertical structure consists of a number of closely situated similar objects. A flag indicating whether the vertical structure is expected to move around its nominal location. The accuracy property of the related Point, Surface or Point can be used to provide the maximum displacement range. AirMAT Overall length of the obstruction AirMAT Overall width of the obstruction AirMAT Boolean indicating whether the obstruction is easily broken Identifies the schedule on which the structure is active. Identifies the Marker Beacon associated to the Vertical Structure. Identifies a part(s) that makes up the Vertical Structure. Identifies the passenger service hosted by the vertical structure. Identifies the ground light system supported by the vertical structure. Identifies the Navigation Aid Equipment hosted by the Vertical Structure. Identifies the Special Navigation Station hosted by the vertical structure. Identifies the unit hosted by the vertical structure. Identifies the OrganisationAuthority hosted by the vertical structure. Identifies the service supported by the vertical structure. Describes a (sub)sector used to restrict flight within a circling area. Restrictions may only be valid for specific times depicts the attributes that describe the geometry for the restricted area depicts the geometry for the restricted area [FAA 8260.3] The area in which aircraft circle to land under visual conditions after completing an instrument landing approach. depicts the geometry for the circling area Circling is used on approach procedure to safely provide visual guidance to other runways. Obstacle assessment of circling areas can define specific conditions causing restrictions or different minimums. A different circling area is constructed and evaluated by aircraft category Identifies the Obstacle Assessment Area for which the Circiling Area is evaluated by. Vertical and horizontal visual minimums for a procedure segment conditions such as aircraft category, navigation equipment usage, procedure type, altimeter, etc. The lowest altitude used in establishing compliance with obstacle clearance criteria. The lowest altitude an aircraft flies before making a decision to land or abort and take the missed approach. (Highest of the lower limit altitudes in controlling obstacles plus the altitude adjustments (operational factors)) An indication of the meaning of the altitude value, such as obstacle clearance altitude or decision altitude. A code indicating the reference for the altitude. The height value for the minimum The height value for the minimum used by militaries, such as DoD in United States. The height reported by a radio altimeter. Applies to CAT II. An indication of the meaning of the height value, such as obstacle clearance height or decision height. The reference surface for the height value. The minimum visibility needed to land at the airport when using the specified altitude and/or height. The visibility value applicable to the military height. Indicates visibility measurement type. Indicates if this minima is the primary. Minimums are adjusted when equipment is unavailable. Used to describe adjustments to minimums when equipment is not available Indicates if the specified altitude/height is adjusted for the case when certain equipment is unavailable. Describes the non-standard table. Indicates if the specified altitude/height is adjusted for the case when the approach lighting is inoperative. contains the adjusted values Adjustments that need to be applied in case equipment is inoperative. Indicates of the approach lighting is INOPERATIVE Subdivision of the TAA to allow for lower altitudes. The lowest altitude will provide a minimum clearance of 300m (1000ft) above all objects located in the sector. Indicates if the aircraft is not required to fly directly over the fix. If code is Yes, then it is a 'flyby' waypoint. If the code is No or nil, then the associated fix is a 'fly-over' waypoint. [ICAO] Waypoints are identified as either flyover or fly-by. Indicates that a course reversal is not required. If the code is Yes, then the products will indicate 'NoPT'. A code indicating how the altitude attributes should be interpreted: 'at' the lower altitude, 'at or above' the lower altitude, 'at or below' the lower altitude or 'between' the altitudes specified in the attributes lowerAltitude and upperAltitude distances. Identifies the circle sector that describes the terminal arrival area sector. depicts the geometry of the TAA sector geometry Obstacle assessment resolves the need for TAA sectors. Terminal arrival area/altitude (TAA). [ICAO] The lowest altitude that will provide a minimum clearance of 300 m (1 000 ft) above all objects located in an arc of a circle defined by a 46 km (25 NM) radius centered on the initial approach fix (IAF), or where there is no IAF on the intermediate approach fix (IF), delimited by straight lines joining the extremity of the arc to the IF. The combined TAAs associated with an approach procedure shall account for an area of 360 degrees around the IF. Terminal Arrival Areas may be provided for RNAV approaches to facilitate descent and entry to the procedure. TAAs are associated with an RNAV procedure based upon the "T" or "Y" Arrangement. The Basic T approach segment configuration is the standard configuration for transition from the en route to the terminal environment. The standard arrangement consists of three TAAs: straight-in, right and left base. Indicates the base type of the arrival area. Types include: Left Base, Right Base, Straight In Buffer size of the outer arc boundary Buffer size of the lateral (or inner) boundary The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). depicts the geometry of the TAA buffer area. Terminal Arrival Area may be subdivided into sectors. TAA supplies shift from the enroute environment to the approach procedure. Final Approach Segment Data Block. The additional information about the Precision Final Segment. Most attributes describe the LPV path point record required for WAAS procedures. (ARINC) Horizontal Alert Limit (HAL) is the radius of a circle in the horizontal plane (the local plane tangent to the WGS-84 ellipsoid), with its center being at the true position, which describes the region which is required to contain the indicated horizontal position with the required probability for a particular navigation mode assuming the probability of a GPS satellite integrity failure being included in the position solution is less than or equal to E-4 per hour. (ARINC) Vertical Alert Limit (VAL) is half the length of a segment on the vertical axis (perpendicular to the horizontal plane of WGS-84 ellipsoid), with its center being at the true position, which describes the region which is required to contain the indicated vertical position with a probability of 1-E-7 per approach, assuming the probability of a GPS satellite integrity failure being included in the position solution is less than or equal to E-4 per hour. The width of the lateral course at the Landing Threshold Point (LTP). This width, in conjunction with the location of the Flight Path Alignment Point (FPAP) defines the sensitivity of the lateral deviations throughout the approach. Other altitudes (not defined by a segment) that are to be depicted on the profile view, such as HAT for ILS CAT II approaches. Indicates the point of the altitude measurement as reporting on a terminal procedure chart. The calculated altitude at the indicated point. The reference for the altitude. Other distances (not defined by a segment) that are to be depicted on the profile view, such as HAT for ILS CAT II approaches. Indicates starting point of the vertical or horizontal measurement The altitude of the start point at the distance given. Used to indicate the distance from the threshold for a specified descent altitude. Indicates ending point of the vertical or horizontal measurement Calculated distanced between the start and end point. Table of timings usually between final approach fix and the missed approach point. Indicates starting point of the vertical or horizontal measurement Indicates ending point of the vertical or horizontal measurement The duration of the flight between the start point and the end point. The speed of the aircraft used to calculate the time. declared altitudes declared distances declared timing (ICAO) A series of predetermined manoeuvres by reference to flight instruments with specified protection from obstacles from the initial approach fix, or where applicable , from the beginning of a defined arrival route to a point from which a landing can be completed and thereafter, if a landing is not completed, to a position at which holding or en route obstacle clearance criteria apply. Prefix used in support of current naming conventions A name describing the type of radio navigational aid/system One character code for multiple approaches of the same approach type; Z-A The final approach track value for copter procedures, 1 - 360. A suffix letter for circling only procedures, A - Z. The textual instruction for procedure turns and tear drops. the additional equipment needed to fly the procedure not listed in approachType Operating channel of electronic transceiving equipment Indicates an expected level of service, e.g., LNAV/VNAV or LPV may not be available. Wide Area Augmentation System (WAAS). Approach procedure designates the landing areas Approach procedure will include missed approach instructions for safety Approach Procedure declares distances, altitudes and timing for safe landing. Properties of the Missed Approach A textual description of the entire missed approach. a second climb-to-altitude provided on a missed approach based off the remote altimeter source. It is provided when the 40:1 surface can not be cleared. For example, (6,100 when using Denver/Stapleton altimeter setting) is a parenthetical instruction. The altitude for the alternate climb instruction. (In PANS-OPS and TERPS design this is the 40:1 surface penetration - second climb to altitude.) Typical services for a procedure are: 1. The unit providing altimeter service. The final approach condition that must be met to use the set of minima. For example, straight in approach to runway 9R Localizer only. (S-LOC 9R) (circling 8,16) Enumerant indicating final approach path. [ICAO] Required navigation performance (RNP). [ICAO] Specifies the minimum navigation performance accuracy required in an airspace. It is the navigation performance accuracy of all the user and navigation system combinations within an airspace. Note: It is a tolerance factor for flying. The factor is taken into consideration when determining protected airspace for aircraft. AirMAT The capability of an aircraft to climb with a certain gradient in take-off configuration. minimums may be created for a set of conditions restrictions may be created for a set of conditions Defines the approved aircraft categories. Minimum Final Approach Condition may apply to one or more Runway Directions;final and sidestep The altimeter that the Minimum Final Approach Condition applies to. Relationship exists when multiple RNP minimas exist AIXM 4.5 (ICAO) A designated instrument flight rule (IFR) departure route linking the aerodrome or a specific runway of the aerodrome with a specified significant point, normally on a designated ATS route, at which the en-route phase of a flight commences. AIXM 4.5 The full textual designator of the SID. For example, - KOGAL1A - a Standard Instrument Departure ending at a designated point KOGAL. AIXM-ID: txtDesig AIXM-TYPE: txtDesigIap AIXM-DESCRIPTION: Designator ++++ Change ++++ Set stereotype flag indicating the departure is a contigency route Departure procedure designates the take off area. An area specified by sectors with altitude or procedure decent gradient limitations for omnidirectional departures or Pilot navigation area. indicates what type of area is defined; omnidirectional area, pilot navigation area. The minimum cloud base needed when using this departure navigation area. The minimum visibility needed when using this departure navigation area. Identifies the SID for which the Navigation Area protects. Defines a subdivision of the Navigation Area designed to provide safety. The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). subdivision of a sector to allow for different altitudes or gradients. Defines a non graphical definition describing a portion of a navigation area. Identifies the obstacle that control the altitude definition of the sector or would penetrate the 40:1 OCS. Identifies the Sector Design defined by the Navigation Area Sector. AIXM 4.5 Minimum en-route altitude (MEA). The altitude for an en-route segment that provides adequate reception of relevant navigation facilities and ATS communications, complies with the airspace structure and provides the required obstacle clearance. The lowermost vertical position at the end point, when flying on the route portion in the direction indicated in the RoutePortionUsage. The reference surface used for the value of the minimumCrossingAtEnd. For example, Mean Sea Level, Ground, standard pressure, etc.. The uppermost vertical position at the end point, when flying on the route portion in the direction indicated in the RoutePortionUsage. The reference surface used for the value of the maximumCrossingAtEnd. For example, Mean Sea Level, Ground, standard pressure, etc.. Identifies th type of aircraft engine allowed for the condition Criteria A code indicating the direction of the turn. Procedure design Gradient Indicates if the sector is clear for the direction of turn. AIXM 4.5 (ICAO) A designated instrument flight rule (IFR) arrival route linking a significant point, normally on an ATS route, with a point from which a published instrument approach procedure can be commenced. AIXM 4.5 The textual designator of the STAR. For example, - FUL3A - a Standard Arrival beginning at designated point FUL. Indicates the runways available from the arrival Usage limitations for a procedure. A code indicating the status of the procedure for flight planning/operations. Identifies the time the procedure is available. Identifies the availability of a series of predetermined manoeuvres with specified protection from obstacles A series of predetermined manoeuvres with specified protection from obstacles. A textual description of providing direction in case of communication failure. AIXM 4.5 A textual description of the procedure. Rules used in the design of the procedure. The set of rules followed when encoding the procedure legs Indicates if the procedure has been flight checked. AIXM 4.5 The name of the instrument procedure. Indicates the procedure is an RNAV procedure Procedure services one or more aerodromes and/or heliports. Procedure may be limited to aircraft categories and/or aircraft capabilities A transition contains and is flown by a equential series of segment legs. The guidance service is using a Navaid. The guidance service is using a special navigation system. The guidance service is using a radar system. Areas that are restricted from use for a procedure. example is restricted areas defined for an omnidirectional departure. Indicated the type of restriction area Identifies the Procedure which the restriction applies to. Identifies the Obstacle Assessment Area that evaulates the restriction. Identifies the Circle Sector for which the restriction is described by. A portion of an procedure as defined by two consecutive significant points. An indication of the event that allows identifying the end of the leg and the start of the next leg on the procedure. For example, reaching an altitude or outbound timing. A code defining a specific type of flight path such as arc, base turn outbound, base turn inbound, track, proc turn, hold in lieu. A comprehensive description of the 'path and terminator' concept is given in ARINC Specification 424, Attachment 5, Path and Terminator. The value of the course angle in degrees. A code indicating the type of course to be observed. E.g. true track, magnetic track, heading, VOR radial, true bearing, magnetic bearing. Indicates flight direction to/from the navaid providing the course guidance. A code indicating the direction of the turn. The value of the speed limit on the procedure leg. Rules: As a plausibility rule, value should be equivalent to between 0 and 400, when expressed in Km/h. A code indicating the reference system for a speed value. A code indicating how the speed attributes of a procedure leg should be interpreted. The recommended bank angle of the aircraft on the turn. Rules: As a plausibility rule, value should be between 5 and 35 degrees. Length of the segment Segment duration Indicates if a procedure turn is required at the end of the segmentleg. Default is No. The value of the upper altitude used with codeDescrDistVer: At or below the higher altitude. Between the lower and the upper altitude. A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance: QFE, QNH, STD. The lower limit altitude. used with codeDescrDistVer: At or above the lower altitude. At the lower altitude Between the lower and the upper altitude. Lower altitude is recommended. Expect lower altitude by ATC. A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance: QFE, QNH, STD. A code indicating how the altitude attributes of a procedure leg should be interpreted. Alternate altitude when directed by Air Traffic Control A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance: QFE, QNH, STD. The value of the vertical climb angle of the aircraft on the procedure leg. A negative value means descent. Rules: As a plausibility rule, value should be between -10 and +50 degrees. determines the starting point of the segment determines the ending point of the segment Segment Leg is depicted by the trajectory An segment known as an Arc can be defined as a radius and distance around a center point. Aircraft trajectory must not cross the angle indication. Aircraft trajectory must not cross this distance indication. A segment leg can be established for specific aircraft characteristics. The segment leg uses a holding pattern for arrival holding, missed approach holding or hold in lieu of procedure turn. A group of consecutive segments that are part of a branch on an approach procedure, SID or STAR. Used strictly for ARINC coding. The identifier will be the initial point for each transition. A transition includes multiple segment legs. The type of transition. a textual description of the procedure transition A heading provided for use, when a departure is designed to incorporate radar vectors at the termination point, in the event ATC instructions are not received prior to or at the termination fix. Business Rule: This relationship is only used for Departure Runway Transitions. Transition is graphically represented by curve Identifies the Segment Legs that compose the Procedure Transition. Describes how the holding pattern is used on a segment. Indicates how the holding is used on the approach segment. Textual description of descend requirement on a procedure. Instructions for descending in holding pattern. Example: TEZNE WP ARRIVALS DESCEND TO 14000 IN TEZNE WP HOLDING PATTERN (N,LT,169 INBOUND) PRIOR TO COMMENCING APPROACH An altitude referenced in the holding use instructions. A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance: QFE, QNH, STD. A portion of a terminal approach procedure as defined by two consecutive significant points. Approaches have defined segments (Initial, Intermediate, etc.) that can have stepdown legs. A type of segmentleg designed in accordance with the rules for arrival feeder segments having the properties specific to a arrival feeder approach segment. [ICAO] Required navigation performance (RNP). [ICAO] Specifies the minimum navigation performance accuracy required in an airspace. It is the navigation performance accuracy of all the user and navigation system combinations within an airspace. Note: It is a tolerance factor for flying. The factor is taken into consideration when determining protected airspace for aircraft. A portion of an arrival procedure (STAR) as defined by two consecutive significant points. [ICAO] Required navigation performance (RNP). [ICAO] Specifies the minimum navigation performance accuracy required in an airspace. It is the navigation performance accuracy of all the user and navigation system combinations within an airspace. Note: It is a tolerance factor for flying. The factor is taken into consideration when determining protected airspace for aircraft. Arrivals have defined legs. A portion of an departure procedure as defined by two consecutive significant points. [ICAO] Required navigation performance (RNP). [ICAO] Specifies the minimum navigation performance accuracy required in an airspace. It is the navigation performance accuracy of all the user and navigation system combinations within an airspace. Note: It is a tolerance factor for flying. The factor is taken into consideration when determining protected airspace for aircraft. Minimum obstacle clearance altitude (MOCA). The minimum altitude for a defined segment of flight that provides the required obstacle clearance. Departures have defined Legs. Identifies the established conditions for the departure A type of segmentleg designed in accordance with the rules for final segments having the properties specific to a final approach segment.. Guidance system used on the final approach segment of an instrument approach procedure. (Commonly used to differentiate lines in a minima table.) Landing system category for use of the minima [FAA-H-8261-1] The temperature at which a Baro-VNAV is noted NA. It is the minimum temperature limitation published for each procedure for which Baro-VNAV minimums are published. This temperature represents the airport temperature below which the use of Baro-VNAV is not authorized to the LNAV/VNAV DA. For example, the note "Baro-VNAV NA below -20°C (-5°F)" implies that the approach may not be flown at all using Baro-VNAV when the temperature is below -20° Celsius. However, Baro-VNAV may be used for approach guidance down to the published LNAV MDA. Note: Used in the LNAV final segment. Applies to RNAVguidance. Indicates if DME/DME RNP 0.3 is allowed. DME/DME based RNP-.03 systems may be used only when a chart note indicates DME/DME availability, for example, "DME/DME RNP-0.3 Authorized." Specific DME facilities may be required, for example, "DME/DME RNP-0.3 Authorized, ABC, XYZ required." Note: Used on RNAV final segment. Final Leg of an approach establishes conditions to be applied. The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). Identifies the point on the final approach course of a nonprecision straight-in approach procedure from which normal descent from the MDA to the runway touchdown point may be commenced, provided visual reference is established. An RNAV precision approach has a final approach segment data block. A type of segmentleg designed in accordance with the rules for initial segments having the properties specific to a initial approach segment. [ICAO] Required navigation performance (RNP). [ICAO] Specifies the minimum navigation performance accuracy required in an airspace. It is the navigation performance accuracy of all the user and navigation system combinations within an airspace. Note: It is a tolerance factor for flying. The factor is taken into consideration when determining protected airspace for aircraft. A type of segmentleg designed in accordance with the rules for intermediate segments having the properties specific to an intermediate approach segment.. The intermediate segment begins at the point where the initial approach intercepts the FAC. [ICAO] Required navigation performance (RNP). [ICAO] Specifies the minimum navigation performance accuracy required in an airspace. It is the navigation performance accuracy of all the user and navigation system combinations within an airspace. Note: It is a tolerance factor for flying. The factor is taken into consideration when determining protected airspace for aircraft. A type of segmentleg designed in accordance with the rules for missed approach segments having the properties specific to a missed approach approach segment.. The missed approach segment begins at DA and ends at the clearance limit. Indicates if the missed approach leg is part of the primary instruction. Indicates if MAP is before or after the Threshold Elevation of the missed approach surface at the missed approach point. [ICAO] Required navigation performance (RNP). [ICAO] Specifies the minimum navigation performance accuracy required in an airspace. It is the navigation performance accuracy of all the user and navigation system combinations within an airspace. Note: It is a tolerance factor for flying. The factor is taken into consideration when determining protected airspace for aircraft. Indicates the order of the segment legs within a transition. The grouping of Landing Areas or Takeoff Areas serviced by the procedure. Procedure may allow landing at multiple runways. Procedure may allow landing at multiple TLOF DME facilities that are used for a particular segments for DME/DME navigation. An indication that the DME is critical for navigation on a procedure segment. Specifies whether the critical DME passed satisfactory or unsatisfactory. Identifies the DME used for a procedure. Identifies the Segment Leg used for evaluating the Distance Measuring Equipment A set of Minimum Sector Altitudes which completely describe an area centered on a significant point, usually contained within a sector of 46km (25NM) radius. Indicates the type of area, either MSA or ESA The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). Safe Altitude area may be subdivided into sectors. Minimum Safe/Sector altitudes protect approach by providing obstacle clearance around the navigation facility upon which the approach is predicated. ICAO Annex 4: For SID: "9.9.3.1 The established minimum sector altitude, based on a navigation aid associated with the procedure, shall be shown with a clear indication of the sector to which it applies." For STAR: "10.9.3.1 The established minimum sector altitude shall be shown with a clear indication of the sector to which it applies." Subdivision of the MSA to allow for lower altitudes. Width of the secondary area used to evaluate the lowest usable altitude for obstacle assessment. depicts the geometry for the MSA Obstacle assessment resolves the need for MSA sectors. depicts the attributes that describe the geometry for the MSA A predetermined manoeuvre which keeps an aircraft within a specified airspace while awaiting further clearance. A code indicating the type of holding procedure. E.g. en-route holding, terminal area holding. The radial, course, bearing or magnetic directional course (if navaid is a localizer) from the facility or waypoint on which holding is based. The type of course to be observed. E.g. true track, magnetic track, heading, VOR radial, true bearing, magnetic bearing The course of the inbound leg. Direction of the turn Max altitude allowed for all aircraft categories at all defined speeds A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance. Minimum altitude allowed for all aircraft categories at all defined speeds A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance. Restricted speed for containment in a smaller pattern Printable text description of the holding pattern When holding with left turns, the reason should be stated Identifies the span is timing. Identifies the span is a length Identifies the second waypoint of a two point holding, used to define the end of the outbound leg. holding occurs at this point A race track pattern depicts a holding pattern. First time a point is established in Enroute environment at a navaid, all radials are checked for holding; 360 deg. (A circle is used for assessment) If the point is a designated point, holding along the course guidance radial is checked. If no restrictions are found, holding on any radial (unplanned) is approved. If restrictions are found, holding restrictions may be noted or holding may be restricted to defined holding patterns. Indicates if the holding pattern is used as an unplanned holding. Note: Enroute use only. value of the altitude approved based on unplanned holding assessment. Indicates: "HEI" = The distance measured from the ground,(AGL) "ALT" = The distance measured from mean sea level (MSL) indicates unplanned holding is completely contained within controlled airspace. Identifies the point used to clear safe holding. Duration of the holding pattern outbound leg. Length of the holding pattern outbound leg. AIXM 4.5 A type of traffic flow condition element which consist of crossing the common border between two adjacent airspace, when flying directly from one airspace into the other airspace. AIXM-ID: AbcType AIXM-DESCRIPTION: Airspace border as crossing condition ++++ Change ++++ Set stereotype AIXM 4.5 A direct flight (DCT) between two significant points, outside the existing route network. AIXM 4.5 A category of direct flights (DCT), having some particular characteristics, such as a minimum length. AIXM 4.5 A value used to indicate that only Direct Flights (DCT) that exceed this value are concerned. AIXM 4.5 A direct flight (DCT) between two specified significant points. The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). AIXM 4.5 A combination of conditions involving: 1) an operator such as \"AND\", \"OR\", \"AND NOT\", \"SEQUENCE\", \"NONE\" and 2) one or more operands, each of these being either a condition element or another combination of conditions. AIXM 4.5 The type of operation combining an elementary condition or a previously defined combination with other elementary conditions or previously defined combinations. AIXM 4.5 Circumstance related to the elementary condition (such as departing from an aerodrome), which is used to further refine the selection of flights being affected by the restriction. AIXM 4.5 A code indicating if the condition element is a reference location for the flight restriction, i.e. if the time schedule associated with the restriction must be considered as applicable for that flight condition element. AIXM 4.5 A code qualifying a location (such as an airspace, aerodrome, point, etc.) when used as condition element. For example, departing from that location, crossing the location, activation hours of the location are used as condition, etc.. AIXM 4.5 A single level or a level band associated with a flight restriction, either condition or routing element. AIXM 4.5 The value of the uppermost cruising level. The data type also allows a special non-numerical value "CEILING", meaning "the top of the airspace. This can useful in the case of Airspace that have a non-constant upper limit. AIXM 4.5 The reference surface used for the value of the upper level. For example, Mean Sea Level, Ground, standard pressure, etc.. AIXM 4.5 The value of the lowermost cruising level. The data type also allows a special non-numerical value "FLOOR" meaning "the bottom of the airspace". This can useful in the case of Airspace that have a non-constant lower limit. AIXM 4.5 The reference surface used for the value of the lower level. For example, Mean Sea Level, Ground, standard pressure, etc.. AIXM 4.5 A rule meant to regulate the use of the route network, by identifying a set of flights which fulfil a combination of elementary flow conditions and either forbidding them on a particular routing or obliging them to follow one routing out of a set of mandatory alternatives. AIXM 4.5 A coded value which identifies the restriction. AIXM 4.5 A code indicating if the restriction is an interdiction or a mandatory routing. AIXM 4.5 A textual description of the operational goal of the restriction. AIXM 4.5 A textual description of the restriction. AIXM 4.5 A sequence of routing elements (points, route portions or airspace) that must/must not appear in the specified order in the flight plan of an aircraft fulfilling the conditions of the related Flight Restriction (according to its type attribute). An element of a route of flight AIXM 4.5 An airspace, route or point that is concerned by a specified flight restriction. AIXM 4.5 A number in sequence used to indicate the order of the routing element in the flight restriction routing to which it belongs. AIXM 4.5 The value of the speed limit imposed on a routing element. AIXM 4.5 A code indicating the reference system for the speed value. For example: IAS, TAS or GS (ground speed). AIXM 4.5 A code indicating whether the speed is a maximum, a minimum or an imposed value. The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). An operand in a flight condition combination. AIXM 4.5 A sequence number used to indicate the order of the operand when composing the FlightConditionCombination. If the route portion is "ID irellevant", then it will not be associated with any specific EnRouteRoute. The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). AIXM 4.5 A portion of a route to be flown usually without an intermediate stop, as defined by two consecutive significant points. A code indicating if the route segment is in the upper airspace, the lower airspace or both. AIXM 4.5 The vertical position of the route segment ceiling. The reference surface used for the value of the upper limit. For example, Mean Sea Level, Ground, standard pressure, etc.. AIXM 4.5 The vertical position of the route segment floor. The reference surface used for the value of the lower limit. For example, Mean Sea Level, Ground, standard pressure, etc.. Minimum obstacle clearance altitude (MOCA). The minimum altitude for a defined segment of flight that provides the required obstacle clearance. AIXM 4.5 The type of segment path. For example, great circle, rhumbline, geodesic line, etc. AIXM 4.5 The initial true track. AIXM 4.5 The initial magnetic track. AIXM 4.5 The reverse initial true track. AIXM 4.5 The reverse initial magnetic track. AIXM 4.5 The length of the path (depending on the type of the path). The distance from the centreline of the route segment to the left edge, when considering the direction from the start point to the end point. The distance from the centreline of the route segment to the right edge, when considering the direction from the start point to the end point. Indicates the turn direction (if any) at the end of the current segment, in order to continue on to the next segment of the same route. indicates a signal gap in the segment A combination of time and levels associated with a particular usage type. A code indicating the availability of the route portion for flight planning. AIXM 4.5 The usage of a particular route portion with regard to direction, timetable and cruising levels. AIXM 4.5 A code indicating the direction in which the route segment is considered when a specific usage is described, ie. forward or backward. The direction for which the usage is specified, expressed as compass angle. AIXM 4.5 Minimum en-route altitude (MEA). The altitude for an en-route segment that provides adequate reception of relevant navigation facilities and ATS communications, complies with the airspace structure and provides the required obstacle clearance. The lowermost vertical position at the end point, when flying on the route portion in the direction indicated in the RoutePortionUsage. The reference surface used for the value of the minimumCrossingAtEnd. For example, Mean Sea Level, Ground, standard pressure, etc.. The uppermost vertical position at the end point, when flying on the route portion in the direction indicated in the RoutePortionUsage. The reference surface used for the value of the maximumCrossingAtEnd. For example, Mean Sea Level, Ground, standard pressure, etc.. AIXM 4.5 Classification of the Route Portion for navigational purposes. Examples: conventional, RNAV. AIXM 4.5 A code indicating the required navigation performance for the route portion A suffix for the route designator (according ICAO Annex 11), indicating whether advisory service only is available on that portion, or the RNP status of the route portion. AIXM 4.5 A group of two or more consecutive segments of the same route, which have the usage and/or the same flight restrictions. The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). DME facilities that are used for a particular route for DME/DME navigation. An indication that the DME is critical for navigation on the route portion. Specifies whether the critical DME passed satisfactory or unsatisfactory. AIXM 4.5 A specified route designed for channelling the flow of traffic as necessary for the provision of air traffic services, from the end of the take-off and initial climb phase to the commencement of the approach and landing phase. A prefix for the route designator, indicating whether the route is upper ATS, reserved for helicopters or reserved for supersonic flights. The letter of the route designator. Depending on the region, letters may have special significance with regard to the route usage limitations. The number of the route designator. A suffix for the route designator, indicating alternates for homonymus routes (especially for military training routes). AIXM 4.5 A textual description of the area in which a designated route is situated. AIXM 4.5 A free text name by which the route is known. Route classification. AIXM 4.5 A code indicating the flight rules to be observed by aircraft. For example, VFR and/or IFR. A code indicating if the route segment is international or domestic. A code indicating whether the route is for exclusive use by military aircraft. A code indicating the type of military training activity for which the route has been designed. Indicates the Organisation normally originating activity on a military training route. The distance from the start of the route portion to the position where change over occurs for VOR defined routes. The distance from the start of the route portion to position of the change over point. The association to a designated point The association to a navaid This association should be used for a SignificantPoint located at the centre of a TLOF and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the runway direction threshold and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This association should be used for a SignificantPoint located at the Airport/Heliport ReferencePoint and which is not declared as DesignatedPoint, because it is unnamed and does not have references (distance and/or angle indications) This choice should be used when the SignificantPoint is a simple unnamed latitude/longitude location and it does not have references (angle and/or distance indications). Typical examples are the North Atlantic track points, flight restrictions that refer to an arbitrary geographical position. Otherwise, use DesignatedPoint (when it is named and/or when it has references). Defines aerial refueling procedures. Air refueling operations are normally conducted on tracks or in anchor areas. There are certain mission requirements and operational considerations which may necessitate enroute refueling operations or the establishment of special tracks/anchors. Military refueling operations are performed on specially designated route. These routes have significant points to guide the Receiver aircraft safely into rendevous with the Tanker. Aerial refueling tracks are established to accommodate refueling operations along a prescribed route. An aerial refueling track consists of an ARIP, ARCP, and an exit point. Navigation check points between the ARCP and exit point are specified, as required, to facilitate navigation along the route. It also includes the tanker orbit pattern at the ARCP, and the altitude block(s) assigned for the track. The refueling track required dimensions vary accroding to aircraft type: Turbojet - Normally, a rectangle 60 NM long (48 NM uptrack and 12 NM downtrack from ARCP or anchor point) and 25 NM wide, oriented longitudinally along the ARIP-ARCP or anchor point segment of the track so as to provide 7 NM of airspace on the nonholding side of the refueling track and 18 NM of airspace on the holding side. This pattern shall normally be designed for left turns. When right turns are used, the orientation of the orbit pattern will shift accordingly. Conventional/Turboprop - Normally, a rectangle 34 NM long (27 NM uptrack and 7 NM downtrack from ARCP or anchor point) and 18 NM wide, oriented longitudinally along the ARIP-ARCP or anchor point segment of the track so as to provide 4.5 NM of airspace on the nonholding side of the refueling track and 13.5 NM of airspace on the holding side. The pattern shall normally be designed for left turns. When right turns are used, the orientation of the orbit pattern will shift accordingly. A prefix for the designator of the Aerial Refueling route. This value will always be "AR". The Route_Number will be numeric 3 digits (1 through 999), which is mandatory. The suffix is either one or two alpha and is optional. Aerial refueling may include its predominant direction as a part of its designator. A have a free-text identifier for the Aerial Refueling procedure. For example: BAUMHOLDER, etc. Specifies the type of refueling operation: Track, Anchor, or both. APN CODE - Rendezvous beacon code for Airborne Navigation Radar. (either X-band or Ku-Band based on the number associated (69, 134, 135)). First digit allowable values: 1, 2, 3 Second digit allowable values: 0, 1, 2, 3, 4 Third digit allowable values - 0, 1, 2, 3, 4 OR No values entered APX CODE - X band Airborne Identification Radar code. First digit allowable values: 2, 3, 4, 5, 6 Second digit allowable values: 1 OR No values entered A code indicating the tanker channel of the TACAN system. A code indicating the receiver channel of the TACAN system. This flag indicates if the aerial refueling is assigned for helicopter usage. Refer to Special Refueling Requirements document JO 7610.4M, page 10-6-2, page 10-6-8. This flag indicates if the aerial refueling supports special mission/sortie. refer to Special Refueling Requirements JO 7610.4M, section 10-6-1. Special tracks/anchors shall not be published in the DOD FLIP planning document, but may be described in letters of agreement. This flag indicates whether the aerial refuleing track supports simultaneous opposite direction aerial refueling. Once the aircraft reaches the end of aerial refueling track, it can turn around right or left, which is referred to as the Direction of Course Reversal Turn. Then, it goes back on the same route that it came from. It only applies to bi-directional routes. Indicates either the airspace that protects or airspace that are crossed by the Aerial Refueling procedure. AerialRefuelingLeg may be either an anchor or a track. In either case, the points that make up an anchor or track are defined in the AerialRefuelingPoint. The Anchor class provides additional anchoring data related to only AR anchors. The geometry of a track is represented by the Curve object and geometryof an anchor is represented by Surface object. Defines individual points that make up the aerial refueling track. Note: by default, AerialRefuelingPoint has: - reportingATC = 'NO_REPORT' - flyover = 'YES' - radarGuidance = 'NO' This attribute defines the order of points that make up an aerial refueling track or anchor. Defines the usage type of an aerial refueling point. A left-hand race track pattern with legs separated by a minimum of 20 NM and a minimum leg length of 50 NM. The refueling track required dimensions vary accroding to aircraft type: “Turbojet - Normally, a rectangle 60 NM long (48 NM uptrack and 12 NM downtrack from ARCP or anchor point) and 25 NM wide, oriented longitudinally along the ARIP-ARCP or anchor point segment of the track so as to provide 7 NM of airspace on the nonholding side of the refueling track and 18 NM of airspace on the holding side. This pattern shall normally be designed for left turns. When right turns are used, the orientation of the orbit pattern will shift accordingly. ; and “Conventional/Turboprop - Normally, a rectangle 34 NM long (27 NM uptrack and 7 NM downtrack from ARCP or anchor point) and 18 NM wide, oriented longitudinally along the ARIP-ARCP or anchor point segment of the track so as to provide 4.5 NM of airspace on the nonholding side of the refueling track and 13.5 NM of airspace on the holding side. The pattern shall normally be designed for left turns. When right turns are used, the orientation of the orbit pattern will shift accordingly. The radial, course, bearing or magnetic directional course (if navaid is a localizer) from the facility or waypoint on which anchor is based. The course of the inbound leg. Direction of the turn Restricted speed for containment in a smaller pattern Printable text description of the anchor. Distance between two parallel legs of the Aerial Refueling racetrack. The length of the Aerial Refueling racetrack. Base flight level for aerial refueling anchors as defined in some foreign AR anchor patterns. For example, for the Gretchen low anchor in Germany the refueling base level is defined as FL 130. Altitude block levels are FL 110 and FL 150. A code indicating the reference for a vertical distance. For exampel, distance: from GND, from the MSL, and from the WGS-84 ellipsoid. Defines tracks (sequence of points) that are used for aerial refueling operation. A service that is provided for aircraft on aerial refueling track or anchor, e.g. air traffic control. Information about the availability of a specific AerialRefueling procedure. AIXM 4.5 The cardinal direction in which the Aerial Refueling route is used. This could be different from the predominant usage direction specified by the designatorDirection of the AerialRefueling. The activation status of the Aerial Refueling. Provides details about the kind of authority that the Organisation has over the Aerial Refueling route. AIXM 4.5 A categorisation of the role that one organisation has for an Aerial Refueling route.