Highway congestion is a familiar frustration for commuters and travelers alike. Often, the knee-jerk solution is to widen roads, adding more lanes to accommodate increasing traffic. However, this approach can be costly, time-consuming, and, paradoxically, sometimes exacerbates traffic issues. A lesser-known but highly effective strategy involves rethinking the management of traffic signals. One town's innovative approach to optimizing traffic lights offers a compelling case study on improving traffic flow without expanding the road.