What should be the characteristics of the fixes provided to pilots for holding?

The characteristics of the fixes provided to pilots for holding should be selected and prominent. This means that the fixes should be easily identifiable and recognizable on the pilot's navigation displays. Prominence is crucial for ensuring that pilots can quickly locate and navigate to the holding fix without confusion, especially in busy airspace or under stress.

Selected fixes often include waypoints that are derived from established navigation sources, making it simpler for pilots to plan their approach and maintain situational awareness. Visibility and ease of recognition help reduce workload during critical phases of flight, such as holding patterns.

In contrast, characteristics such as being complex, non-specific, or rural and isolated would hinder the pilots' ability to efficiently manage their flight path and maintain safety during holding maneuvers. Therefore, the focus is on simplicity and clarity to enhance operational effectiveness.