Tokyo Metro Fukutoshin Line

The 10000-series train on test-run. It will serve the Fukutoshin Line.

The Tokyo Metro Fukutoshin Line (東京地下鉄副都心線, Tōkyō Chikatetsu Fukutoshin-sen), formerly known as Tokyo Metro Line 13 (東京地下鉄13号線, Tōkyō Chikatetsu Jūsangō-sen), is a Tokyo Metro subway line currently under construction in Tokyo, Japan. A 3.2 km segment from Kotake-Mukaihara to Ikebukuro, running parallel to the Yurakucho Line on separate tracks and known as the Yurakucho New Line (有楽町新線, Yūrakuchō Shin-sen), is already in operation.

The section presently under construction will connect to Shinjuku and Shibuya via Zoshigaya, Sendagaya and Meiji Shrine, with service scheduled to start in June 2008. Through services to Kawagoe-shi station on the Tōbu Tōjō Main Line, and Hanno station on the Seibu Ikebukuro Line will be offered. Starting in 2012, the Tokyu Toyoko Line will move to share the line's Shibuya terminus and offer through services on the Minato Mirai Line to Motomachi Chūkagai Station, in Yokohama.

Development

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Construction underway on the Fukutoshin Line in northern Shibuya

Fukutoshin is Japanese for "secondary city center," and the Fukutoshin Line connects three of Tokyo's secondary city centers: Ikebukuro, Shinjuku and Shibuya. Presently, only JR East has rail service between the three (on the Yamanote Line and Saikyo Line). The new line was conceived to relieve congestion along this busy corridor, and to provide convenient through service between the northwest of Tokyo, the southwest of Tokyo and the city center.

The line was initially planned in 1972 as a run from Shiki, Saitama to Shinjuku, with the possibility of further extension to Shibuya, Shinagawa and Haneda Airport. In 1985, a second Ministry of Transportation committee proposed that the line terminate at Shibuya. Part of the northern end of the original plan line became unnecessary following improvements to the Tobu Tojo Line and the beginning of through service from the Yurakucho Line.

Stations

Operational

Station	Ward/City	Transfers
Wako-shi Station	Wako, Saitama	Tokyo Metro Yurakucho Line
Chikatetsu Narimasu Station	Itabashi, Tokyo	Tokyo Metro Yurakucho Line
Chikatetsu Akazuka Station	Nerima, Tokyo	Tokyo Metro Yurakucho Line
Heiwadai Station	Nerima, Tokyo	Tokyo Metro Yurakucho Line
Hikawadai Station	Nerima, Tokyo	Tokyo Metro Yurakucho Line
Kotake-Mukaihara Station	Nerima, Tokyo	Tokyo Metro Yurakucho Line (through service), Seibu Yurakucho Line (through service)
Senkawa Station	Toshima, Tokyo	Tokyo Metro Yurakucho Line
Kanamecho Station	Toshima, Tokyo	Tokyo Metro Yurakucho Line
Shinsen Ikebukuro Station	Toshima, Tokyo	Yamanote Line, Saikyo Line, Shonan-Shinjuku Line, Takasaki Line, Utsunomiya Line, Tokyo Metro Marunouchi Line, Tokyo Metro Yurakucho Line, Tōbu Tōjō Main Line, Seibu Ikebukuro Line

Planned

The final station names are:

Station	Ward/City	Transfers
Zoshigaya Station	Toshima, Tokyo	Toden Arakawa Line (Kishibojinmae Station)
Nishi-Waseda Station	Shinjuku, Tokyo
Higashi-Shinjuku Station	Shinjuku, Tokyo	Toei Oedo Line
Shinjuku-sanchome Station	Shinjuku, Tokyo	Tokyo Metro Marunouchi Line, Toei Shinjuku Line
Kitasandō Station	Shibuya, Tokyo
Meiji-Jingumae Station	Shibuya, Tokyo	Tokyo Metro Chiyoda Line, Yamanote Line (Harajuku Station)
Shibuya Station	Shibuya, Tokyo	Tokyu Toyoko Line (through service starting 2012), Yamanote Line, Saikyo Line, Shonan Shinjuku Line, Tokyo Metro Ginza Line, Tokyo Metro Hanzomon Line, Tokyu Den-en-toshi Line, Keio Inokashira Line