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Cadastre of obstacle limitation surfaces
Regions and cities, Environment
Obstacle limitation surfaces are a series of three-dimensional surfaces that delimit the obstacle-free airspace generally required for flight safety. Objects that penetrate thes...
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Safety zone plan
Regions and cities, Environment
For each airport, a security zone is to be established, which protects the airspace from obstacles. The FOCA will decide in each case whether a safety zone is necessary for air ...