What does ALTRSV stand for in aviation terminology?

The correct interpretation of ALTRSV in aviation terminology is "Altitude Reservation." This term is used in air traffic management to refer to the practice of reserving specific altitudes for aircraft operations, particularly in high-density airspace or during peak traffic periods. The purpose of altitude reservation is to enhance safety and efficiency by preventing altitude conflicts between aircraft, ensuring a more streamlined flow of air traffic.

In operational contexts, altitude reservation can be crucial for maintaining effective separation between aircraft, especially in environments where multiple flights are operating on intersecting routes. This concept also plays a vital role in managing airspace capacity and optimizing the use of available airspace to reduce delays and enhance flight safety.