Runway lights are essential lighting systems used at airports to guide pilots during takeoff and landing, especially in low visibility conditions. These lights are strategically placed along the edges and centerline of the runway to provide clear visual cues. They help ensure safe aircraft operations by indicating the runway's boundaries and alignment. There are different types of runway lights, including threshold lights, which mark the beginning of the runway, and approach lights, which assist pilots in aligning with the runway during descent. These lighting systems are crucial for maintaining safety and efficiency in aviation operations.