What lighting system helps guide aircraft in low visibility conditions?

The Surface Movement Guidance and Control System (SMGCS) is designed specifically to assist in the safe movement of aircraft on the ground during low visibility conditions. This system provides pilots and ground controllers with guidance on the safe paths to follow while taxiing, particularly in fog, rain, or other scenarios that limit visibility. SMGCS incorporates visual aids such as lights and signage to clearly delineate taxiways, runways, and other critical areas.

In low visibility situations, clear and effective guidance is crucial for avoiding collisions and ensuring aircraft safety. The components of SMGCS—such as enhanced lighting systems and ground markings—are strategically designed to maintain operational safety under these challenging conditions.

Other options, while related to lighting, do not offer a comprehensive system for guiding aircraft in low visibility. For instance, medium intensity lights and high intensity lights are generally used for runway or approach lighting but do not constitute a complete guidance system like SMGCS. Taxiway centerline lights also serve as visual aids but are part of the broader SMGCS framework, rather than a standalone system that encompasses all aspects of ground movement in low visibility.