In foreign countries, Pavement Management System (PMS) is proved to be an efficient tool to allocate maintenance funds and maintain the service level of road network.
在国外，路面管理系统已经被证明是一个统筹养护资金分配，维持路网服务水平的有效工具。
How to effectively provide the better information service for the vehicles running in the net has become a bottleneck to restrict the road network transportation service level promotion.
如何有效的向在网车辆提供更好的信息服务，成为了制约路网交通服务水平提升的瓶颈。
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