In aviation, an air traffic service (ATS) is a service which regulates and assists aircraft in real-time to ensure their safe operations.
In particular, ATS is to: The ATS further provides four services: An ATS route is a designated route for channeling the flow of traffic as necessary for the provision of air traffic services.
Routes may be defined with a designator; a path to and from significant points; distance between significant points; reporting requirements; and the lowest safe altitude.
Recently European ATS service providers are facing a greater change on the European market, with the introduction of Single European Sky, that divides Europe into "functional airspace blocks" – which is replacing the old, national airspace blocks.
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