请用英语评价下面几种有关交通的工具，每个至少超过四句话，并推荐在成都旅游的交通方式：taxi se
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taxi service , so expencive.the subway system, too crowded. the bus system, so crowded.the train system ，always be late. facilities （设施）for pedestrian （行人），oh the road is their yard. parking ,so difficult