Traffic signal indicators are an essential part of modern transportation systems, guiding vehicles and pedestrians safely and efficiently through intersections and along busy streets. Most drivers are familiar with the standard red, yellow, and green cycles that control the flow of traffic during the day. However, a common sight during late-night hours is the blinking or flashing of these signals, often replacing the regular cycling pattern. This operational shift raises several important questions: Why do traffic signal indicators blink at night? What are the underlying reasons, and how does this practice impact safety, efficiency, and energy consumption? In this comprehensive article, we will explore the many facets of nighttime blinking traffic signals, including their history, technical operation, safety implications, and the future of traffic management.
