Definition
A point at an adjusted altitude along an Area Navigation (RNAV) high altitude route where a pilot changes navigation guidance from one VOR/DME station to the next, ensuring continuous course information along the route.
Plain English
The spot along a high-altitude RNAV route where you stop tracking from one ground-based navigation station and start tracking from the next, so you always have a usable signal.
Context Anchor
Seen in arrival procedure and air traffic control discussions, especially when describing where an aircraft begins the arrival segment toward an airport.
Derivation
“Transition” comes from a Latin idea meaning “to go across” or “to pass from one state to another.” That helps here because the aircraft is passing from one phase of flight into another: from en route flight into the arrival and descent toward landing.
Why Pilots Care
Marks where published altitude and speed restrictions become mandatory, ensuring proper traffic sequencing and preventing conflicts with other aircraft or terrain.
Intuition Check
Do not read “transition point” as just any place where something changes. In this FAA use, it is a defined navigation position tied to an arrival and a distance from the runway threshold.
Example Sentence 1
Approaching the transition point, the pilot retuned the navigation receiver to the next VOR/DME along the route.
Example Sentence 2
ATC cleared the flight direct to the transition point to join the approach from the en route structure.