What must a runway have for DAAP relief to be utilized?

For DAAP relief to be utilized, the runway must have an operational visual guidance system. This is crucial as the direct approach and approach procedure perception heavily depend on visual references. An operational visual guidance system provides pilots with necessary navigational aids during the descent and landing phases, ensuring they can safely approach the runway. This guidance system can include components such as precision approach path indicators (PAPI) or an instrument landing system (ILS), which improve situational awareness and help maintain the correct glide path during lower visibility scenarios.

While other factors like a paved surface, appropriate runway length, and clear weather conditions contribute to runway safety and usage, they do not specifically pertain to the utilization of DAAP relief, which relies fundamentally on visual guidance systems for effective operation.