Which of the following describes the purpose of Runway Centerline Lighting System?

The Runway Centerline Lighting System is primarily designed to assist pilots in landing visually, particularly during low visibility conditions. This system uses a series of lights installed along the centerline of the runway to provide visual guidance for pilots as they approach for landing. The lights change color to convey important information about the runway's condition, including whether the aircraft is on the correct path for landing. This capability is essential for maintaining safety during approaches and ensuring that pilots can accurately gauge their position relative to the runway, especially in adverse weather conditions.

The other options do not align with the specific role of this lighting system. While navigation during takeoff and taxiway guidance are important aspects of airport operations, they do not pertain to the primary function of the Runway Centerline Lighting System. Safe altitude levels are typically indicated by other means, such as air traffic control instructions and onboard instruments, rather than by runway lighting systems.