And the planar roundabout in urban road is much, restricting viatic traffic capacity badly.

且城市道路中的平面交叉路口多，严重制约着道路的通行能力。

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Next, the viatic demand of consumer and the way that seek viatic service also are in produce a change.

其次，消费者的旅行需求和寻求旅行服务的方式也在发生改变。

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