Control of urban traffic pollution the motor vehicle emission should be controlled.
控制城市交通污染，必须严格控制机动车的排放。
Highly application of GIS to urban traffic pollution management has been developed, which consisted of proscenium-GIS system, back stage-motor vehicle emission model and spatial data base.
开发了高层应用城市交通污染管理信息系统，由前台gIS系统、后台机动车排放模型、空间数据库三大部分构成。
Though urban infrastructures were constructed largely, especially in big city and Megalopolis, road resource can' t satisfy traffic volume because number of motor vehicle increases rapidly.
虽然城市道路等基础设施在加速建设，但在城市中，尤其是大城市、特大城市，道路资源增长远不能满足因机动车增长而导致的交通量增长。
Though urban infrastructures were constructed largely, especially in big city and Megalopolis, road resource can' t satisfy traffic volume because number of motor vehicle increases rapidly.
虽然城市道路等基础设施在加速建设，但在城市中，尤其是大城市、特大城市，道路资源增长远不能满足因机动车增长而导致的交通量增长。
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