The Tokyo Metro Tozai Line connects Nishi-Funabashi Station in Funabashi City, Chiba Prefecture, to Nakano Station in Nakano Ward, Tokyo. 35% of the line is above ground, making it the subway with the most above ground sections in Japan. Within Chiba Prefecture, the line runs almost entirely above ground. Parts of the Toyo Rapid Railway Line run underground.
The Tokyo Metro Tozai Line connects Nishi-Funabashi Station in Funabashi City, Chiba Prefecture, to Nakano Station in Nakano Ward, Tokyo. 35% of the line is above ground, making it the subway with the most above ground sections in Japan. Within Chiba Prefecture, the line runs almost entirely above ground. Parts of the Toyo Rapid Railway Line run underground.