FAA Design Standards
Runway clearances addressed in this section include Building Restriction Lines (BRL), aircraft parking limit lines, and runway safety areas. Each of these criteria provides clearances from potential hazards for routine operations for aircraft operating on the airfield. BRL’s provide the necessary clearance between buildings or other fixed objects and the runway centerline. FAA criteria for a BRL recommend that it encompass the runway protection zones, the runway object free area, NAVAID critical areas, areas required for terminal instrument procedures and ATC tower line-of-sight. These factors should be applied to all new cargo facilities at airports.
Aircraft parking limit lines define the shortest distance that the tail of an aircraft can be to a runway, according to FAR Part 77 criteria. Aircraft parking limit lines are particularly useful, in developing cargo layout concepts. A 1,060-foot limit line from the runway centerline for A380 aircraft, a 954-foot limit line for B747/B777 aircraft, a 907-foot limit line for DC-10/L-1011 aircraft, and an 808-foot limit line for B757 or smaller aircraft should be used for planning aircraft parking positions.
For larger gateway airports, where possible, taxiway requirements for runway-to-taxiway, taxiway-to-taxiway, and taxiway-to- fixed or movable objects should be based on Aircraft Design Group VI, as defined in FAA Advisory Circular (AC) 150/5300-13, Airport Design. Where it is not practical to provide Group VI separations, Group V standards should be implemented as a minimum. The taxiway-to-fixed or movable object separation for the B747 is 160 feet.