台北市,位于台湾岛的北尖端。长久以来,交通方面存在着困难问题。其原因是该市人口是世界上人口密度最大者之一。最近十年来,街道上行驶的各种车辆达到允许的三倍,缺乏大量运输手段,公共汽车和出租汽车挤满在街道上,街道狭窄,又无扩大交通干线的可 Taipei, located on the northern tip of Taiwan Island. For a long time, there have been difficulties in transportation. The reason is that the city’s population is one of the largest in the world. In the recent 10 years, the permitted number of vehicles on the streets has tripled. There has been a lack of means of transport. Buses and taxis are packed in the streets with narrow streets and no expansion of traffic routes.