What does the abbreviation "RNAV" stand for?

The abbreviation "RNAV" stands for Area Navigation. This term refers to a method of aircraft navigation that permits operations on any desired flight path within the coverage of station reference points or within the limits of the capability of self-contained systems, or a combination of both. RNAV enables an aircraft to fly a planned route without the need to fly directly to ground-based navigational aids, thereby enhancing the flexibility and efficiency of air traffic operations.

The concept of area navigation allows pilots to use waypoints defined by the Global Positioning System (GPS) or other navigational databases, thus simplifying route planning and allowing for more direct routing in crowded airspace or throughout complex airways. This results in fuel savings as well as time efficiency during flights.