The advanced urban traffic signal control system has an important effect on improving the traffic condition and sufficiently utilizing roadway capacity of the existing road.

先进的城市交通信号控制系统对改善交通状况，充分利用现有道路的通行能力起着重要作用。

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The original problems existing in agricultural transportation vehicle management system caused increasing traffic accidents in recent years.

原有农用运输车管理体制存在的问题，导致了近年来农用运输车交通事故率大幅度上升的情况。

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There are several disadvantages in the existing urban public transport system, such as lacking of capacity, weather-sensitive, frequent traffic accidents, badly environment pollution and so on.

现有的城市公交系统通常存在运力不足，受天气影响大，交通事故频繁以及对环境污染大等缺点。

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At sequester levels, our ATC system should be able to easily handle existing air traffic, if its administrators wanted it to so.

FORBES: Sequester Scaremongers Caught Red Handed on Air Controller Cuts