On roads of arterial standard and above, traffic calming is never appropriate because they require higher Design Speeds.
干线和以上标准的道路上不适合进行交通稳静化，因为它们要求较高的计算行车速度。
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The road resources between arterials that are left unused are explored to shunt the traffic of arterial network, not only alleviating traffic pressure but also saving land and investment.
Three after being Heng cloud arterial road pull, the traffic condition will soon present new look and suit a vegetable to greatly enter a big proptosis here and transport very convenient.