Land_and_hold_short_operations
Land and hold short operations
Air traffic control procedure for aircraft landing&holding short of an intersecting runway
Land and Hold Short Operations (LAHSO, pronounced "La-So") is an air traffic control procedure for aircraft landing and holding short of an intersecting runway or point on a runway, to balance airport capacity and system efficiency with safety. [1]
This article includes a list of general references, but it lacks sufficient corresponding inline citations. (July 2008) |
Its use is voluntary: if a pilot denies LAHSO clearance the Air Traffic Controller must revector the aircraft to ensure adequate separation from other aircraft landing or departing an intersecting runway or crossing down field. Due to the inherent risk of simultaneous runway operations, a heightened level of situational awareness is necessary, and student pilots or pilots not familiar with LAHSO should not participate in the program.
Although used in the US, many countries do not permit LAHSO clearances, and some airlines' operating procedures do not allow their acceptance in countries that do permit them.
LAHSO was previously called SOIR (Simultaneous Operations on Intersecting Runways), and incorporates and expands all SOIR definitions.