Road traffic signals shall be added, changed or renewed in time upon the need of passage.

根据通行需要，应当及时增设、调换、更新道路交通信号。

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Green, as opposed to red, means safety; it is the color of free passage in road traffic.

绿色，与红色相反，意味着安全性；它是道路交通中自由通行的颜色。

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Rapid commodity transport passage is a kind of new traffic plan mode.

快速货运通道是一种新的交通规划模式。

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Current municipal traffic monitoring systems study individual stretches of road that use induction loops to sense the passage of cars, or complex camera systems that capture licence plates.

BBC: Tech that trumps traffic tangles

The passage is now open for four or five months a year and is getting more traffic.

ECONOMIST: The melting north | The