Figure 10.4: The air navigation services.
The Air Navigation Services (ANS) conform all the services that are provided to airspace users (i.e., aircraft) such that all flight operations are safely (and efficiently) performed. These services are provided by each country within the volumes of air under its responsibility. The provider of these services, which can be either government departments, state-owned companies, or privatised organisations, are referred to as Air Navigation Service Providers as introduced in the previous section. Figure 10.4 presents an schematic of the different services.