An overview of the Aviation OIS toolbox

The Aviation OIS toolbox contains tools that generate obstruction identification surfaces (OIS) according to different specifications.

Tool name	Description
FAA 18B	Creates obstruction identification surfaces based on the FAA 18B specification. These surfaces describe airspaces that should be free of obstructions. Surfaces are used to support planning and design activities. The type, function, and dimension of a surface differ by runway classification. This tool creates surfaces as polygon or multipatch features or triangulated irregular networks (TINs).
FAA FAR 77	Creates obstruction identification surfaces based on the FAA FAR 77 specification. These surfaces describe airspace segments that are clear of obstructions. The type, function, and dimension of a surface differs by runway classification. This tool creates surfaces as polygon or multipatch features, or triangulated irregular networks (TINs).
ICAO Annex 14	Creates obstruction identification surfaces based on the ICAO Annex 14 specification. These surfaces define areas of airspace around an aerodrome. Each area defines the limits to which an obstruction may project into an airspace. The type, function, and dimension of a surface differ by runway classification. This tool creates surfaces as polygon or multipatch features, or triangulated irregular networks (TINs).
ICAO Annex 15	Creates obstruction 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 obstruction may project into an airspace. This tool creates surfaces as polygon or multipatch features, or triangulated irregular networks (TINs).