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. <