The different organizations of air traffic

To provide these services, an organization (control tower, en route center ...) is established. There are several types. Depending on the type of traffic, different agencies provide air traffic control: The centers en route air navigation (ACC) are responsible for ensuring that the air traffic services for the benefit of aircraft cruise (excluding nearby aerodrome). For example, there are 5 regional control centers (also called en route centers) in France who share the provision of the service control throughout France. The centers approach control (APP) are responsible for ensuring that the air traffic services in the vicinity of an aerodrome, in a control area whose size is variable. Air traffic controllers are usually located in the cab of a control tower or radar room in a specially built.
. In the second terminal OuestLes centers aerodrome control (TWR for Tower or control tower) are responsible for ensuring that the air traffic services in a restricted area (about a dozen kilometers) around an aerodrome. Their main function is the management of the airstrip. The service is delivered from the cab of a control tower. These bodies were differentiated because the skills, rules and technical means are not the same. A control center in motion requires a radar, while the main tool in aerodrome control is the view. On approach, all aircraft want to go in the same place: the track was a phenomenon "funnel". En route, the aircraft have different origins and destinations, the problems are many scattered and random. These and other differences led to this classification. There are also other organizations that are called "control" by abuse of language, but do not control service, just information services and warning. These organizations are: FIS: Flight Information Service. It is co-located with a control center in road or an approach. They make the flight information services and warning in an area not controlled. AFIS: Aerodrome Flight Information Service (flight information service on aerodrome), which replaces the aerodrome control within a controlled aerodrome not providing information services and warning. The AFIS officer, contrary to an air traffic controller can not give any instructions to the pilots but it may suggest maneuvers. They are generally of former military controllers.