Hanzōmon Line

The 16.8 km (10.4 mi) line serves the wards of Shibuya, Minato, Chiyoda, Chūō, Kōtō, and Sumida. Despite being shorter in length than nearly all other Tokyo subway lines, the Hanzōmon Line operates some of the longest through services with private railways – namely Tōkyū Corporation and Tobu Railway. The line is connected to Tōkyū Den-en-toshi Line at Shibuya Station to the south, and to the Tobu Skytree Line at Oshiage to the north. Through trains operate between Chūō-Rinkan on the Tōkyū Den-en-toshi Line and Tōbu-Dōbutsu-Kōen on the Tobu Skytree Line, onward to Kuki on the Tobu Isesaki Line and Minami-Kurihashi on the Tobu Nikko Line.^[2] Through-service trains between Chūō-Rinkan and Minami-Kurihashi cover a total distance of 98.5 km (61.2 mi) in a single run – nearly six times the length of the Hanzōmon Line alone.

The Hanzōmon Line has direct interchanges with all other Tokyo Metro and Toei lines. It connects with the Tokyo Metro Ginza Line at five stations (the four stations between Shibuya and Nagatachō, as well as at Mitsukoshimae Station.

According to the Tokyo Metropolitan Bureau of Transportation, as of June 2009 the Hanzōmon Line is the sixth most crowded subway line in Tokyo, at its peak running at 173%^[a] capacity between Shibuya and Omotesandō stations.^[3]

The Hanzōmon Line was first planned in 1968, along with the Chiyoda Line and Yūrakuchō Line, as a reliever line for the heavily congested Ginza Line. Its initial routing was from Futako-Tamagawa Station on the Tōkyū Den-en-toshi Line to a new station in the Fukagawa district of Kōtō. In 1985, a second draft plan from the Ministry of Transportation moved the Hanzōmon Line's final terminus to Matsudo. During the planning stage, it was known as Line 11.

Construction began in 1972 and the majority of the line was expected to open in 1975. However, the Teito Rapid Transit Authority did not have enough funds to build the line, which delayed its construction. On August 1, 1978, the first section of the Hanzōmon Line finally opened from Shibuya to Aoyama-itchōme, including through services with the Den-en-toshi Line. It was then extended to Nagatachō Station in September 1979. The line was initially operated mainly using Tokyu rolling stock, as the first TRTA 8000 series train did not enter service until 1981.

However, the next extension posed political problems, as the original plan had the line run directly under the Imperial Palace to Ōtemachi Station. TRTA decided to divert the route around the north side of the Imperial Palace, which required the construction of three new stations. An eminent domain battle erupted with landowners along the proposed route, which delayed the completion of the next stage of the line. Hanzōmon Station opened in December 1982, and the full extension around the Imperial Palace, terminating at Mitsukoshi-mae, was not completed until January 1989. The line was then extended to Suitengu-mae in November 1990 and finally Oshiage in March 2003, the latter also enabling through service with the Tobu Skytree Line.^[4]

The line, station facilities, rolling stock, and related assets were inherited by Tokyo Metro after the privatization of the Teito Rapid Transit Authority (TRTA) in 2004.^[5]

The Ministry of Transportation recommended in 2000 that the line be extended to its intended terminus in Matsudo by 2015. However, Tokyo Metro stated in its initial public offering that its construction operations would cease once the Fukutoshin Line is completed, which cast some doubt as to whether the Matsudo extension will actually be built.

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• All services stop at every station.

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No.	Station	Japanese	Distance (km)		Transfers	Location
			Between stations	From Shibuya
Tokyu Den-en-toshi through services:					Via the Den-en-toshi Line to/from Chuo-Rinkan
Z01	Shibuya	渋谷[* 1]	-	0.0	Den-en-toshi Line (through service to Nagatsuta and Chūō-Rinkan) Tōyoko Line Fukutoshin Line (F-16) Ginza Line (G-01) Yamanote Line Saikyō Line Shōnan–Shinjuku Line Inokashira Line	Shibuya
Z02	Omotesandō	表参道	1.3	1.3	Chiyoda Line (C-04) Ginza Line (G-02)[* 2]	Minato
Z03	Aoyama-itchōme	青山一丁目	1.4	2.7	Ginza Line (G-04) Ōedo Line (E-24)
Z04	Nagatachō	永田町	1.4	4.1	Yūrakuchō Line (Y-16) Namboku Line (N-07) Marunouchi Line (Akasaka-mitsuke: M-13) Ginza Line (Akasaka-mitsuke: G-05)	Chiyoda
Z05	Hanzōmon	半蔵門	1.0	5.1
Z06	Kudanshita	九段下	1.6	6.7	Tōzai Line (T-07) Shinjuku Line (S-05)
Z07	Jimbōchō	神保町	0.4	7.1	Mita Line (I-10) Shinjuku Line (S-06)
Z08	Ōtemachi	大手町	1.7	8.8	Marunouchi Line (M-18) Chiyoda Line (C-11) Tōzai Line (T-09) Mita Line (I-09) Yamanote Line (Tokyo: JY-01) Chūō Line (Tokyo: JC-01) Keihin–Tōhoku Line (Tokyo:JK-26) Ueno-Tokyo Line (Tokyo: JU-01) Tōkaidō Line (Tokyo: JT-01) Sōbu Line (Tokyo: JO-19) Yokosuka Line (Tokyo: JO-19) Keiyō Line (Tokyo: JE-01)
Z09	Mitsukoshimae	三越前	0.7	9.5	Ginza Line (G-12) Sōbu Line (Shin-Nihombashi)	Chūō
Z10	Suitengūmae	水天宮前	1.3	10.8	Hibiya Line (Ningyocho: H-14) Asakusa Line (Ningyocho: A-14)
Z11	Kiyosumi-shirakawa	清澄白河	1.7	12.5	Ōedo Line (E-14)	Kōtō
Z12	Sumiyoshi	住吉	1.9	14.4	Shinjuku Line (S-13)
Z13	Kinshicho	錦糸町	1.0	15.4	Sōbu Line Chūō–Sōbu Line	Sumida
Z14	Oshiage	押上[* 3]	1.4	16.8	Skytree Line (though service for Tōbu-Dōbutsu-Kōen, Kuki on Isesaki Line, and Minami-Kurihashi on Nikkō Line) Asakusa Line (A-20) Oshiage Line
Tobu through services:					Via the Skytree Line & Isesaki Line to/from Kuki Via the Skytree Line & Nikkō Line to/from Minami-Kurihashi

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