What is the Minimum Enroute Altitude (MEA) designed to assure?

The Minimum Enroute Altitude (MEA) is specifically designed to ensure both navigational signal coverage and obstacle clearance for aircraft flying along a specific route. This altitude provides a guarantee that pilots will receive reliable navigation signals from ground-based facilities, which are crucial for maintaining flight path accuracy. In addition, the MEA is set at a height that safely distances aircraft from terrain and obstacles, allowing for a buffer that helps prevent mid-air collisions with mountains, towers, and other obstacles.

By adhering to the MEA, pilots can navigate with confidence, knowing that they are flying at an altitude that is specifically established to provide safety during enroute operations, thus fulfilling both the navigational and safety aspects necessary for effective flight management.