What does "minimum safe altitude" mean?

"Minimum safe altitude" refers to the lowest altitude at which an aircraft can safely operate without the risk of collision with obstacles on the ground, such as buildings, towers, and terrain. This altitude ensures that an aircraft has adequate clearance from these obstacles, providing a margin of safety during operations, particularly in areas where there may be limited airspace or when flying in mountainous terrain.

Understanding this concept is crucial for pilots and air traffic controllers to prevent accidents and ensure the safety of the aircraft during flight maneuvers, especially during take-offs and landings. It helps in planning routes and making operational decisions, promoting safe aviation practices.