Why do dogs wait for traffic lights

Why do dogs wait for traffic lights Generally speaking trained guide dogs are able to identify traffic lights, although the dog’s sense of color is very dull, but for the color of light and dark is very sensitive, so can distinguish between light and dark layers to identify the color. Generally speaking dogs are more alert, when crossing the road, will pay attention to the movement on both sides, but also easy to be frightened when suddenly run wild, so in the absence of the owner traction, or do not let the dog randomly on the road. When pulling a dog on the street, you can consciously let the dog keep the same pace as the master, that is, when the master stops, the dog will immediately stop and will not run away, this process requires repeated practice.