Definition
A computer-calculated estimate of the time an aircraft will arrive at the vertex of a metering fix, used by air traffic control to sequence and meter traffic into a busy airport.
Plain English
The time the computer expects your aircraft to reach a specific point in the sky that controllers use to space arriving traffic.
Context Anchor
Seen in FAA abbreviation lists and in timing or traffic-flow information where an aircraft’s arrival at a specific route point is important.
Derivation
Vertex comes from Latin meaning 'highest point' or 'turning point.' In ATC, the vertex is a designated turning or metering point on an arrival route. The term tells you it is the predicted clock time at that specific point.
Why Pilots Care
Supports safe and efficient handling of multiple aircraft during high-traffic arrival periods.
Intuition Check
Do not read VTA as the time of arrival at the airport. It means the time of arrival at a specified route point or turning point.
Example Sentence 1
The traffic management system uses each aircraft's VTA to build an orderly arrival sequence into the terminal area.
Example Sentence 2
Meeting the assigned VTA allowed the flight to merge smoothly into the arrival stream.