ARCDBA.JBA_Imgnry_Surface_2007_Py

This definition/description of Runway Airspace Imaginary Surfaces is from the Air Installation Compatible Use Zone Study, Andrews Air Force Base, Maryland, December 2007, p.4-1 to 4-4.Runway airspace imaginary surfaces, in graphical form, are the result of the application of obstruction height criteria to Andrews AFB. Imaginary surfaces are surfaces in space around airfields in relation to runways. The surfaces are designed to define the obstacle-free airspace at and around the airfield. Refer to Unified Facilities Criteria (UFC) 3-260-01, Airfield and Heliport Planning and Design (http://www.wbdg.org/ccb/DOD/UFC/ufc_3_260_01.pdf), for a more complete description of runway airspace imaginary surfaces for Class B runways.

The purpose of the this layer is to display the Imaginary Runway Surfaces that create the object free space surrounding the runways of Joint Base Andrews, Prince George's County, Maryland.