What does the acronym MEA stand for in aviation?

The acronym MEA stands for Minimum Enroute Altitude in aviation. MEA is a critical altitude that ensures safe navigation between two points along a flight route. It guarantees adequate obstacle clearance and ensures that the aircraft is within the operational limits of air traffic control. Specifically, the MEA provides a vertical clearance above terrain and man-made structures, as well as a level of radio signal coverage, allowing pilots to navigate safely while maintaining communication with air traffic control.

This altitude is established for each segment of an airway and is particularly important when flying in mountainous terrain or areas with obstacles that can pose a risk to flight safety. By adhering to the MEA, pilots enhance their situational awareness and ensure compliance with aviation regulations that prioritize safety in flight operations.