Air navigation services is a complex, living system which is itself connected with other systems (e.g. the flight operations of the airlines, airport operations and environmental protection and noise control).
For this reason, sustainable improvements in safety require the cooperation of multiple actors, a common risk assessment process, the identification of overarching improvements and a solid understanding of strategies for their implementation.
To maintain and further improve its high safety standards, skyguide conducts safety surveys within its operational units, using a methodology developed by its own experts and known as the Unit safety risk assessment (USRA). Conducted jointly with the relevant partner organisations, these surveys provide a snapshot of the risks associated with the operating environment, offer risk-reduction strategies, and encourage timely improvement measures.
The methodology has already proved itself in multiple complex settings, and can also be applied in fields other than aviation.