The dataset provides information on the conical surfaces of Iowa airports. The conical surface extends outwards and upwards from the boundary of the horizontal surface at a slope of 20:1 for a horizontal distance of 4,000 feet.

The dataset provides information on airport approach surfaces. The approach surface is longitudinally centered on the extended runway centerline and extends outward and upward from each end of the primary surface. An approach surface is applied to the end of each runway based upon the type of approach available. (Slopes can vary from 20:1, 34:1, 40:1 or 50:1).

The Airport Runways database is a geographic dataset of runways in the State of Maryland containing information on the physical characteristics of the runways. The 6716 runways in the dataset are runways associated with the 19721 airports in the companion airport data set. This geospatial data is derived from the FAA's National Airspace System Resource Aeronautical Data Product (Effective 17 March 2013).

Simple polygons of airport data, specifically aircraft movement areas and airport boundaries. Data created with ArcGIS software and is in ESRI shapefile format.

The Runway Ends Table dataset is updated every 28 days from the Federal Aviation Administration (FAA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The Runways database contains runways in the United States and US territories with information on the physical characteristics of the runways. Not all runways in this dataset have geospatial locations associated with them, as this is not a required data element from the airport source. As a result, this database contains a polyline layer, a points layer and a table. The polyline layer contains runways that had corresponding runways ends. The points layer contains mostly heliports, but also non-linear landing areas. The table contains runways where geospatial information was not reported. The runways in the database are associated with the airports dataset on NTAD, showing runways for all official and operational aerodromes. This geospatial data is derived from the FAA's National Airspace System Resource Aeronautical Data.