traffic-light

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["交通信号灯"]

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You figure it out that that is a traffic light,that that traffic light is red and not green,that that means that you need to stop

You figure it out.You figure it out that that is a traffic light,that that traffic light is red and not green,

has found crashes drop 40 percentfrom when you convert a traffic light into a roundabout.Injury crashes have dropped 76 percent,

have done computer simulations of what happenswhen fuzzy estimates combine, even in light traffic,when cars just share GPS data,

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经济学人(The Economist)