ICAO Annex 14 (Aviation)

Available with Aviation Airports license.

Available with Aviation Charting license.

Summary

Creates obstruction identification surfaces (OIS) based on ICAO Annex 14 specifications. These surfaces define the airspace around aerodromes to be free of obstacles so flight operations can be performed safely. This tool creates surfaces as a polygon or multipatch features.

Usage

• The Input Runway Features parameter must be z-enabled.

• This tool creates the OIS in an existing polygon or multipatch feature class. The OIS can also be generated in an existing polygon shapefile. If a feature class is used as the Target OIS Features parameter value, it must include a vertical spatial reference.

• To create a .json file for the Custom JSON File parameter, use the CustomizeOIS.exe utility included in the Aviation Airports Product Data download available from My Esri.

• The Airport Elevation parameter has a default value of 0. If you use an elevation value greater than 0, it takes precedence and overrides any existing airport elevation value read from the Input Airport Control Point Feature parameter.

• The Input Airport Control Point Feature parameter can be used to supply x-, y-, and z-geometry for the Airport Elevation parameter, displaced threshold point features, or both. If displaced threshold points are included, surfaces will be constructed based on their x-, y-, and z-geometry instead of their corresponding Input Runway Feature parameter endpoint.

• OIS tools are flexible and accept a variety of input and output feature class types. For more information, see the OIS Input and Output schemas.

• The horizontal surface generated by this tool will be cut by the transitional and approach surface for output polygon features; however, the surface will be continuous for output multipatch features.

  Legacy:

  In ArcGIS Pro 2.6.x and earlier versions, the horizontal surface generated by this tool will be cut by the transitional or approach surfaces.

• High Runway End refers to runway direction identifiers 19 through 36. Low Runway End refers to runway direction identifiers 01 through 18.

• If processing multiple runway features, check the Include Merged Surfaces parameter to create an additional Merged Horizontal Surface and Merged Conical Surface.

  The additional merged surfaces will be continuous and will have an additional surface created to fill in the areas bounded by edges tangent to the outer edges of the individual surfaces.

Parameters

Dialog

Label	Explanation	Data Type
Input Runway Features	The input runway dataset. The feature class must be z-enabled and contain polylines.	Feature Layer
Target OIS Features	The output feature class that will contain the generated OIS.	Feature Layer
Runway Classification	Specifies the runway classification for the Input Runway Features parameter value. Non instrument code number 1—A runway intended for the operation of aircraft using visual approach procedures. Runway strip length is 30 meters. Non instrument code number 2—A runway with a 60-meter strip length and 40-meter strip width that is intended for the operation of aircraft using visual approach procedures. Non instrument code number 3—A runway with a 60-meter strip length and 75-meter strip width that is intended for the operation of aircraft using visual approach procedures. Non instrument code number 4—A runway with a 60-meter strip length and 75-meter strip width that is intended for the operation of aircraft using visual approach procedures. Non precision approach code number 1—An instrument runway served by visual aids and a nonvisual aid providing at least directional guidance adequate for a straight-in approach. This runway type has a 60-meter strip length and a 75-meter strip width on either side of the runway centerline. Non precision approach code number 2—An instrument runway served by visual aids and a nonvisual aid providing at least directional guidance adequate for a straight-in approach. This runway type has a 60-meter strip length and a 75-meter strip width on either side of the runway centerline. Non precision approach code number 3—An instrument runway served by visual aids and a nonvisual aid providing at least directional guidance adequate for a straight-in approach. This runway type has a 60-meter strip length and a 150-meter strip width on either side of the runway centerline. Non precision approach code number 4—An instrument runway served by visual aids and a nonvisual aid providing at least directional guidance adequate for a straight-in approach. This runway type has a 60-meter strip length and a 150-meter strip width on either side of the runway centerline. Precision approach category I code number 1—An instrument runway served by an Instrument Landing System (ILS) or a Microwave Landing System (MLS) and visual aids intended for operations with a decision height not lower than 60 meters (200 feet) and either a visibility not less than 800 meters or a runway visual range not less than 550 meters. This runway type has a 60-meter strip length and a 75-meter strip width on either side of the runway centerline. Precision approach category I code number 2—An instrument runway served by ILS and MLS and visual aids intended for operations with a decision height not lower than 60 meters (200 feet) and either a visibility not less than 800 meters or a runway visual range not less than 550 meters. This runway type has a 60-meter strip length and a 75-meter strip width on either side of the runway centerline. Precision approach category I code number 3 4—An instrument runway served by ILS and MLS and visual aids intended for operations with a decision height not lower than 60 meters (200 feet) and either a visibility not less than 800 meters or a runway visual range not less than 550 meters. This runway type has a 60-meter strip length and a 150-meter strip width on either side of the runway centerline. Precision approach category II III code number 3 4—An instrument runway served by ILS and MLS and visual aids intended for operations with a decision height lower than 60 meters (200 feet) but not lower than 30 meters (100 feet) and a runway visual range not less than 350 meters. This runway type has a 60-meter strip length and a 150-meter strip width on either side of the runway centerline.	String
Length of High Runway End Clearway (Optional)	The length of the area at the high end of the runway. The unit of measurement is based on the input runway features.	Double
Length of Low Runway End Clearway (Optional)	The length of the area at the low end of the runway. The unit of measurement is based on the input runway features.	Double
Airport Elevation (Optional)	The highest elevation on any of the runways of the airport. The value must be in the vertical coordinate system linear units of the target feature class. If no value is provided, the highest point from the Input Runway Features dataset will be used.	Double
Runway Direction (Optional)	Specifies the end of the runway where the approach surface will be created. High end to low end—The approach surface will be created at the high end of the runway to the low end. If a displaced threshold point exists at the high end of the runway, that point will be honored when creating the OIS. Low end to high end—The approach surface will be created at the low end of the runway to the high end. If a displaced threshold point exists at the low end of the runway, that point will be honored when creating the OIS. Both ends—The approach surface will be created at both the low end and high end of the runway.	String
Include Merged Surfaces (Optional)	Specifies whether merged surfaces will be generated. Checked—All the surfaces will be generated for the merged surfaces, as well as merged conical and horizontal surfaces. This is the default. Unchecked—Surfaces will not be generated for the merged surfaces.	Boolean
Custom JSON File (Optional)	The import configuration, in JSON format, that will be used to create the custom OIS.	File
Input Airport Control Point Feature (Optional)	The point features containing an Airport Elevation feature, displaced threshold features, or both. Values provided for the Airport Elevation parameter will take precedence over these point features.	Feature Layer

Derived Output

Label	Explanation	Data Type
Output OIS Features	The updated feature class containing the generated OIS.	Feature Layer

Python

arcpy.aviation.ICAOAnnex14(in_features, target, runway_type, {highend_clear_way_length}, {lowend_clear_way_length}, {airport_elevation}, {runway_direction}, {include_merged_surface}, {custom_json_file}, {airport_control_point_feature_class})

Name	Explanation	Data Type
in_features	The input runway dataset. The feature class must be z-enabled and contain polylines.	Feature Layer
target	The output feature class that will contain the generated OIS.	Feature Layer
runway_type	Specifies the runway classification for the in_features parameter value. NON_INSTRUMENT_CODE_NUMBER_1—A runway intended for the operation of aircraft using visual approach procedures. Runway strip length is 30 meters. NON_INSTRUMENT_CODE_NUMBER_2—A runway with a 60-meter strip length and 40-meter strip width that is intended for the operation of aircraft using visual approach procedures. NON_INSTRUMENT_CODE_NUMBER_3—A runway with a 60-meter strip length and 75-meter strip width that is intended for the operation of aircraft using visual approach procedures. NON_INSTRUMENT_CODE_NUMBER_4—A runway with a 60-meter strip length and 75-meter strip width that is intended for the operation of aircraft using visual approach procedures. NON_PRECISION_APPROACH_CODE_NUMBER_1—An instrument runway served by visual aids and a nonvisual aid providing at least directional guidance adequate for a straight-in approach. This runway type has a 60-meter strip length and a 75-meter strip width on either side of the runway centerline. NON_PRECISION_APPROACH_CODE_NUMBER_2—An instrument runway served by visual aids and a nonvisual aid providing at least directional guidance adequate for a straight-in approach. This runway type has a 60-meter strip length and a 75-meter strip width on either side of the runway centerline. NON_PRECISION_APPROACH_CODE_NUMBER_3—An instrument runway served by visual aids and a nonvisual aid providing at least directional guidance adequate for a straight-in approach. This runway type has a 60-meter strip length and a 150-meter strip width on either side of the runway centerline. NON_PRECISION_APPROACH_CODE_NUMBER_4—An instrument runway served by visual aids and a nonvisual aid providing at least directional guidance adequate for a straight-in approach. This runway type has a 60-meter strip length and a 150-meter strip width on either side of the runway centerline. PRECISION_APPROACH_CATEGORY_I_CODE_NUMBER_1—An instrument runway served by an Instrument Landing System (ILS) or a Microwave Landing System (MLS) and visual aids intended for operations with a decision height not lower than 60 meters (200 feet) and either a visibility not less than 800 meters or a runway visual range not less than 550 meters. This runway type has a 60-meter strip length and a 75-meter strip width on either side of the runway centerline. PRECISION_APPROACH_CATEGORY_I_CODE_NUMBER_2—An instrument runway served by ILS and MLS and visual aids intended for operations with a decision height not lower than 60 meters (200 feet) and either a visibility not less than 800 meters or a runway visual range not less than 550 meters. This runway type has a 60-meter strip length and a 75-meter strip width on either side of the runway centerline. PRECISION_APPROACH_CATEGORY_I_CODE_NUMBER_3_4—An instrument runway served by ILS and MLS and visual aids intended for operations with a decision height not lower than 60 meters (200 feet) and either a visibility not less than 800 meters or a runway visual range not less than 550 meters. This runway type has a 60-meter strip length and a 150-meter strip width on either side of the runway centerline. PRECISION_APPROACH_CATEGORY_II_III_CODE_NUMBER_3_4—An instrument runway served by ILS and MLS and visual aids intended for operations with a decision height lower than 60 meters (200 feet) but not lower than 30 meters (100 feet) and a runway visual range not less than 350 meters. This runway type has a 60-meter strip length and a 150-meter strip width on either side of the runway centerline.	String
highend_clear_way_length (Optional)	The length of the area at the high end of the runway. The unit of measurement is based on the input runway features.	Double
lowend_clear_way_length (Optional)	The length of the area at the low end of the runway. The unit of measurement is based on the input runway features.	Double
airport_elevation (Optional)	The highest elevation on any of the runways of the airport. The value must be in the vertical coordinate system linear units of the target feature class. If no value is provided, the highest point from the in_features dataset will be used.	Double
runway_direction (Optional)	Specifies the end of the runway where the approach surface will be created. HIGH_END_TO_LOW_END—The approach surface will be created at the high end of the runway to the low end. If a displaced threshold point exists at the high end of the runway, that point will be honored when creating the OIS. LOW_END_TO_HIGH_END—The approach surface will be created at the low end of the runway to the high end. If a displaced threshold point exists at the low end of the runway, that point will be honored when creating the OIS. BOTH_END—The approach surface will be created at both the low end and high end of the runway.	String
include_merged_surface (Optional)	Specifies whether merged surfaces will be generated. INCLUDE_MERGED_SURFACE—All the surfaces will be generated for the merged surfaces, as well as merged conical and horizontal surfaces. This is the default. NOT_INCLUDE_MERGED_SURFACE—Surfaces will not be generated for the merged surfaces.	Boolean
custom_json_file (Optional)	The import configuration, in JSON format, that will be used to create the custom OIS.	File
airport_control_point_feature_class (Optional)	The point features containing an Airport Elevation feature, displaced threshold features, or both. Values provided for the Airport Elevation parameter will take precedence over these point features.	Feature Layer

Derived Output

Name	Explanation	Data Type
derived_outfeatureclass	The updated feature class containing the generated OIS.	Feature Layer

Code sample

ICAOAnnex14 example 1 (stand-alone script)

The following Python script demonstrates how to use the ICAOAnnex14 function.

import arcpy

# set gp environment
arcpy.env.workspace = "c:/data/ois.gdb"
arcpy.CheckOutExtension("Aeronautical")

# Input Runway Feature Class
inFeatures = "RunwayCenterline"

# feature class that will contain the OIS surface
outFeatureClass = "ObstructionIdSurface"

# runway variables
runway = "NON_INSTRUMENT_CODE_NUMBER_1"
runwayDir = "HIGH_END_TO_LOW_END"

#_Exec_ICAOAnnex14
arcpy.ICAOAnnex14_aviation(inFeatures, outFeatureClass, runway, 10, 0, 100,
                           runwayDir, "INCLUDE_MERGED_SURFACE")

arcpy.CheckInExtension("Aeronautical")

ICAOAnnex14 example 2 (stand-alone script)

The following Python script demonstrates how to use the ICAOAnnex14 function with the custom_json_file parameter.

import arcpy

# set gp environment
arcpy.env.workspace="c:/data/ois.gdb"
arcpy.CheckOutExtension("Aeronautical")

# Input Runway Feature Class
inFeatures = "RunwayCenterline"

# feature class that will contain the OIS surface
outFeatureClass = "ObstructionIdSurface"

# runway variables
runway = "NON_INSTRUMENT_CODE_NUMBER_1"
runwayDir = "HIGH_END_TO_LOW_END"
customJSON = r"C:\data\customOIS.json"

#_Exec_ICAOAnnex14
arcpy.ICAOAnnex14_aviation(inFeatures, outFeatureClass, runway, 10, 0, 100,
                           runwayDir, "INCLUDE_MERGED_SURFACE", customJSON)

arcpy.CheckInExtension("Aeronautical")

ICAOAnnex14 example 3 (stand-alone script)

The following Python script demonstrates how to use the ICAOAnnex14 function with the airport_control_point_feature_class parameter.

import arcpy

# set gp environment
arcpy.env.workspace="c:/data/ois.gdb"
arcpy.CheckOutExtension("Aeronautical")

# Input Runway Feature Class
inFeatures = "RunwayCenterline"

# feature class that will contain the OIS surface
outFeatureClass = "ObstructionIdSurface"

# runway variables
runway = "NON_INSTRUMENT_CODE_NUMBER_1"
runwayDir = "HIGH_END_TO_LOW_END"
customJSON = r"C:\data\customOIS.json"

# Feature class that will contain the Airport Elevation feature
inACPFeatures= "AirportControlPoint"

#_Exec_ICAOAnnex14
arcpy.ICAOAnnex14_aviation(inFeatures, outFeatureClass, runway, 10, 0, 0,
                           runwayDir, "INCLUDE_MERGED_SURFACE", customJSON, inACPFeatures)

arcpy.CheckInExtension("Aeronautical")

Environments

Current Workspace

Licensing information

• Basic: No
• Standard: Requires Airports or ArcGIS Aviation Charting
• Advanced: Requires Airports or ArcGIS Aviation Charting