A solid green light has meant “go” to American drivers for nearly a century. But at a growing number of intersections across the country, green now comes with ...

The Connecticut Department of Transportation is installing new traffic signals that have reflective backplates. These 3-inch yellow borders improve visibility at night. Credit: CDOT / Instagram Did ...

Every few seconds at intersections across the United States, a driver sitting in a left-turn lane sees a solid green light and pulls forward, expecting oncoming traffic to stop. It doesn’t. According ...

Red means stop and green means go. Well, except at intersections with traffic signals that show solid a green light in the left-hand turn lane. In that case, green means yield, and proceed with ...