日本是一个名副其实的汽车大国。因为国土狭小,人口密度高,有限的道路资源与不断增长车辆间的矛盾比较突出。特别是东京、大阪等大城市,车多路少的问题更为严重,以致一些路段和区域时常发生堵车。例如,东京的面积只有2100多平方公里,人口却高达1200万,每两人就拥有一辆小汽车,并且还在不断增长。 Japan is a veritable car power. Because of the small territory and high population density, the contradiction between the limited road resources and the ever-increasing number of vehicles is outstanding. In particular, in major cities like Tokyo and Osaka, the problem of fewer cars and more roads has become even more serious, causing frequent traffic jams in some sections and areas. For example, Tokyo, with an area of ​​more than 2,100 square kilometers and a population of 12 million, owns a car for every two people and is still growing.