What uses colored lights to tell road users when to stop, when to go, and where to go, so that they don't run into each other or roadway hazards?

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Multiple Choice

What uses colored lights to tell road users when to stop, when to go, and where to go, so that they don't run into each other or roadway hazards?

Colored lights at intersections are used to control traffic flow and prevent crashes. This system—traffic signals—tells road users when to stop (red), when to go (green), and when to slow or prepare to stop (yellow). Some signals also show directional arrows to indicate where you may turn or go, helping drivers, cyclists, and pedestrians move in coordinated ways and avoid conflicts with others or with hazards. Traffic signs, on the other hand, convey information or warnings using shapes and colors but don’t actively control movement with lights. So when the description emphasizes using colored lights to tell when to stop, go, or where to go to keep everyone safe, the best fit is traffic signals.

Colored lights at intersections are used to control traffic flow and prevent crashes. This system—traffic signals—tells road users when to stop (red), when to go (green), and when to slow or prepare to stop (yellow). Some signals also show directional arrows to indicate where you may turn or go, helping drivers, cyclists, and pedestrians move in coordinated ways and avoid conflicts with others or with hazards. Traffic signs, on the other hand, convey information or warnings using shapes and colors but don’t actively control movement with lights. So when the description emphasizes using colored lights to tell when to stop, go, or where to go to keep everyone safe, the best fit is traffic signals.

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