Air Traffic Service

Air Traffic Service (ATS) route; related to the United States FAA definitions, is a specified route designated for channeling the flow of traffic as necessary for the provision of air traffic services. The term “ATS route” refers to a variety of airways, including jet routes, area navigation (RNAV) routes, and arrival and departure routes. An ATS route is defined by route specifications, which may include: (1) An ATS route designator;
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A generic term meaning: 1) Flight Information Service; 2) Alerting Service; 3) Air Traffic Advisory Service; 4) Air Traffic Control Service, Area Control Service, Approach Control Service, or Airport Control Service. (FAA4)

A generic term meaning:

a. Flight Information Service.
b. Alerting Service.

c. Air Traffic Advisory Service.

d. Air Traffic Control Service:
1. Area Control Service,
2. Approach Control Service, or
3. Airport Control Service.