由于日本的地面交通已趋近饱和,因而大力发展高架和地下轨道交通。目前,日本有10个城市运营地铁,按开通的顺序排列,分别是东京、大阪、名古屋、神户、札幌、横滨、京都、福冈、仙台和广岛。与世界各国有地铁的城市一样,日本这些城市也都有各自的地铁标记。它既代表了该城市地铁 As Japan’s ground transportation is approaching saturation, great efforts have been made to develop overhead and underground rail transit. Currently, there are 10 cities in Japan that operate the metros, in the order they are opened: Tokyo, Osaka, Nagoya, Kobe, Sapporo, Yokohama, Kyoto, Fukuoka, Sendai and Hiroshima. Like the cities in the world where there is a subway, these cities in Japan also have their own subway markings. It represents the city subway