ICAO Annex 15 (Aeronautical)

Summary

Creates obstacle identification surfaces based on the ICAO Annex 15 specification. These surfaces define areas of airspace around an aerodrome. Each area defines the limits to which an obstacle may project into an airspace. This tool creates surfaces as polygon features.

Usage

• The production database must be defined in the Data Management pane of the Production Properties dialog box.

• The Input Runway Features must be Z enabled.

• The options you pick in Linear Unit and Angular Unit will automatically populate most of the surface parameters. You can modify these existing preset values but the generated geometry may not be valid.

• The tool does not create the Output Feature Class. You can specify the ObstacleArea feature class as the Output Feature Class. You can find the ObstacleArea feature class in your production database. The Output Feature Class must exist, be Z enabled, and have the same geometry type and fields as the ObstacleArea feature class.

• The Output Feature Class must have a vertical spatial reference.

• This tool always runs in foreground mode. If you run this tool with Background Processing checked on, the tool will automatically switch to foreground processing.

Syntax

ICAOAnnex15_Aeronautical (in_features, input_feature_sql, input_clear_way, input_runway_type, input_ois_unit, input_ois_slope, primary_surface, primary_surface_length, primary_surface_width, conical_surface, conical_surface_slope, conical_surface_offset, approach_surface, approach_divergence, first_section_length, first_section_slope, output_feature_class)

Parameter	Explanation	Data Type
in_features	The input runway dataset. The feature class must be Z enabled and contain polylines.	Feature Layer
input_feature_sql	A Structured Query Language (SQL) WHERE clause that selects a subset of features from in_features.	SQL Expression
input_clear_way	The length of the area at the end of the take-off run. An aircraft can make a portion of its initial climb over this area.	Double
input_runway_type	Runway type. The default is eTod.	String
input_ois_unit	The runway length linear unit of measurement. Feet —Runway length is in feet. This is the default. Meters —Runway length is in meters.	String
input_ois_slope	The angular unit of measurement for slope values. For stand-alone scripts, use a long value to specify the angular unit enumerator. In the ArcGIS Python window, you can use either a long or string value (from autocomplete). 0 —Slope angle is expressed as a grade (inclination) in percent. 1 —Slope angle is expressed in degrees. 2 —Slope angle is expressed as X units of run per 1 vertical unit.. This is the default.	Long
primary_surface	Controls the creation of a primary surface. This surface extends beyond the runway's threshold in each direction. CREATE_PRIMARY_SURFACE —Creates a primary surface. This is the default. NO_CREATE_PRIMARY_SURFACE —Does not create a primary surface.	Boolean
primary_surface_length	Primary surface length excluding the length of the runway.	Double
primary_surface_width	Primary surface width excluding the width of the runway.	Double
conical_surface	Controls the creation of a conical surface. ICAO Annex 15 refers to this surface as Area 2c, the obstacle data collection surface. CREATE_CONICAL_SURFACE —Creates a conical surface. This is the default. NO_CREATE_CONICAL_SURFACE —Does not create a conical surface.	Boolean
conical_surface_slope	The slope value of the surface created by conical_surface. The default value is 1.2%.	Double
conical_surface_offset	The distance from the edge of the primary surface to the outer edge of area 2c, the conical surface. This value defaults to 10km.	Double
approach_surface	Controls the creation of an approach surface. These surfaces are inclined planes preceding the runway's threshold. CREATE_APPROACH_SURFACE —Creates an approach surface. This is the default. NO_CREATE_APPROACH_SURFACE —Does not create an approach surface.	Boolean
approach_divergence	The rate of divergence of two sides that originate from the approach surface's inner edge.	Double
first_section_length	The length of the first section of the approach surface.	Double
first_section_slope	A slope value computed from the vertical plane containing the runway's centerline.	Double
output_feature_class	The output feature class that will contain the generated obstacle identification surfaces. This feature class must already exist.	Feature Layer

Code Sample

ICAOAnnex15 example (Python window)

The following Python window script demonstrates a use of the ICAOAnnex15 function.

# Change the path to input_features
input_features = "Database Servers\\YOUR_SQLEXPRESS.gds\\ASP_PD (VERSION:dbo.DEFAULT)\\ASP_PD.DBO.ADHPSurfaceLine"

# change the path to output_features - this feature class must already exist
output_features = "C:\\data\\work.gdb\\ObstacleAreaICAO"

# import the toolbox - you may have to alter this path
arcpy.ImportToolbox(r'C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Aeronautical Tools.tbx')

# exec ICAOAnnex15
arcpy.ICAOAnnex15_Aeronautical(input_features, "OBJECTID in (2)", "0", "eTOD", "Meters", "Rise (X:1)", "CREATE_PRIMARY_SURFACE", "0", "255", "CREATE_CONICAL_SURFACE", "83.3333333333333", "10000", "CREATE_APPROACH_SURFACE", "6.66666666666667", "10000", "83.3333333333333", output_features)

Environments

This tool does not use any geoprocessing environments

Licensing Information

ArcView: No

ArcEditor: No

ArcInfo: Requires Aeronautical Solution