Stuck at a red light? You may need to let it know you're there

(NEXSTAR) - It’s probably happened to you. You pull up to a stop light, and you wait patiently for the light to turn green. Maybe cross traffic continues moving through the intersection, or maybe you’re the only car at the intersection. Yet somehow, the light never seems to turn green. Chances are, you’re sitting at a light that doesn’t know you’re there. Some traffic lights run on timers, which can vary by the time of day or during certain events. In