Urban rail transport and surface public transit are two main parts of urban public transport system.
轨道交通与地面常规公交共同支撑着城市公共交通系统。
The Widely existing fact for both home and abroad is that the urban public transport system has duality and is undergoing management loss.
城市公共交通具有二重性并存在经营亏损是国内外普遍存在的事实。
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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