The main difficulties and problems is setting unreasonable on traffic safety facilities such as truck escape ramp, road signs and road traffic marking.
其中比较突出的问题是避险车道，交通标志标线等安全设施设置不合理。
The main difficulties and problems is setting unreasonable on traffic safety facilities such as truck escape ramp, road signs and road traffic marking.
其中比较突出的问题是避险车道，交通标志标线等安全设施设置不合理。
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