Flowniveau

Flowniveau is a term used in aviation to describe a specific altitude at which an aircraft is permitted to fly. These levels are part of a standardized air traffic control system designed to ensure separation between aircraft and prevent collisions. Flowniveau is typically expressed in feet and is part of a vertical airspace structure.

The concept of flowniveau is crucial for maintaining orderly air traffic. Aircraft flying at the same or similar altitudes risk collision, so air traffic controllers assign specific flowniveaus to different flight paths. This system is often referred to as "flight levels" in English-speaking countries.

The exact values and the system for assigning flowniveaus can vary slightly between different countries and regions, but the fundamental principle of establishing vertical separation remains consistent worldwide. These levels are not always exact geometric altitudes but are often based on standardized pressure settings. Pilots are instructed to maintain these assigned flowniveaus meticulously, and deviations are closely monitored by air traffic control. This system contributes significantly to the safety and efficiency of air travel.