Also found in: Acronyms.
altitude reservation[′al·tə‚tüd ‚rez·ər′vā·shən]
The prior approval by the appropriate air traffic control agencies of flight plans, requesting use of certain airspace for the purpose of expediting mass movement of aircraft or other special air operations.
A flight altitude assigned to an aircraft by an air-traffic control agency.
altitude reservation (ALTRV)
Airspace of defined dimensions within controlled airspace, reserved for the use of a civil or military agency during a specified period. Normally, it is for mass movement of aircraft but can be for any other purpose as well. An altitude reservation may be confined to a fixed area (stationary) or moving in relation to the aircraft that operate within it (moving).