Definition
A computerized system used by air traffic management to monitor, predict, and balance the flow of aircraft across the National Airspace System. It uses real-time flight data, weather information, and airport capacity to identify congestion before it happens and apply traffic management initiatives such as ground stops, delays, or rerouting to keep traffic moving safely and efficiently.
Plain English
A computer system that helps controllers see the big picture of air traffic across the country, spot bottlenecks before they form, and adjust the flow so aircraft don't pile up at busy airports or in crowded airspace.
Context Anchor
Seen in aviation acronym lists and in material about air traffic control systems, airport operations, or traffic-flow management.
Why Pilots Care
It reduces airborne holding, ground delays, and reroutes by matching traffic to real-time capacity.
Intuition Check
Do not read “traffic” as highway traffic here. In this aviation context, it means aircraft movement and the information used to manage that movement safely.
Example Sentence 1
The ground delay at the destination airport was issued through the advanced traffic management system after thunderstorms reduced arrival capacity.
Example Sentence 2
ATMS initiatives allowed the flight to depart on time instead of absorbing a ground delay.