Each color represents how fast the traffic is moving.

交通运行情况是依据颜色来显示的，每种颜色反映着相应的交通运转速度。

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A newly released document includes recordings of air traffic controllers, military pilots and others reacting to the fast-moving events.

一份最新公布的文件包含了空中交通管制员的录音，军事飞行员和其他人对突发事件的反应。

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Many areas require that slow drivers drive in the far-right lane. Faster moving traffic operates in the middle lanes. The fastest cars drive on the far-left side — also called the fast lane.

许多地区要求开得慢的司机在最右侧车道行驶，更快的车流在中间车道行驶，开得最快的司机在最左边车道也就是快车道行驶。

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