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Tokyo Metro Hanzōmon Line
Tokyo Metro Hanzōmon Line
	A Hanzōmon Line 18000 series train
Overview
Other name(s)	Z
Native name	東京メトロ半蔵門線
Owner	Tokyo Metro
Line number	11
Locale	Tokyo
Termini	Shibuya; Oshiage;
Stations	14
Color on map	Lavender (#8F76D6)
Service
Type	Heavy rail rapid transit
System	Tokyo subway
Operator(s)	Tokyo Metro
Depot(s)	Saginuma
Rolling stock	Tokyo Metro 8000 series; Tokyo Metro 08 series; Tokyo Metro 18000 series; Tokyu 2020 series; Tokyu 5000 series; Tobu 50000 series; Tobu 50050 series
Daily ridership	1,006,682 (2017)
History
Opened	1 August 1978; 46 years ago
Technical
Line length	16.8 km (10.4 mi)
Track gauge	1,067 mm (3 ft 6 in)
Minimum radius	160.7 m (527 ft)
Electrification	1,500 V DC (overhead line)
Operating speed	80 km/h (50 mph)
Signalling	Cab signalling, Closed block
Train protection system	New CS-ATC
Maximum incline	3.5%
Route map
Route map

The Tokyo Metro Hanzōmon Line (東京メトロ半蔵門線, Tōkyō-metoro-hanzōmon-sen) is a subway line in Tokyo, Japan, owned and operated by Tokyo Metro.

Overview

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.

The line is named after the west gate of the Imperial Palace (Hanzōmon), which in turn is named after 16th century samurai Hattori Hanzō, who was important to the founding of the shogunate which built the palace. The Hanzōmon Line's color on maps and station guides is purple, and stations carry the letter "Z" followed by a two-digit number.

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]

Station list

All stations are located in Tokyo.
All services stop at every station.

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

^ Shibuya is shared by both Tokyu Corporation and Tokyo Metro; Tokyu Corporation manages the station.
^ Due to the distance between the Ginza and Hanzomon/Den-en-toshi lines at Shibuya, transfers between the two lines are announced at Omote-sando.
^ Oshiage is shared by both Tobu Railway and Tokyo Metro; Tokyo Metro manages the station.

Rolling stock

Current

All Hanzōmon Line rolling stock owned by Tokyo Metro are stored and maintained at Saginuma Depot (ja:鷺沼車両基地), located near Saginuma Station on the Tokyu Den-en-toshi Line.

Tokyo Metro 18000 series
Tokyo Metro 08 series
Tokyo Metro 8000 series
Tokyu 2020 series
Tokyu 5000 series
Tobu 50050 series

Former

Tokyu 8500 series

History

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. Hanzomon 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.^[6]

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.^[7]

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.

Notes

a. ^ Crowding levels defined by the Ministry of Land, Infrastructure, Transport and Tourism:^[8]^[9]

100% — Commuters have enough personal space and are able to take a seat or stand while holding onto the straps or hand rails.

150% — Commuters have enough personal space to read a newspaper.

180% — Commuters must fold newspapers to read.

200% — Commuters are pressed against each other in each compartment but can still read small magazines.

250% — Commuters are pressed against each other, unable to move.

Bibliography

References

^ Tokyo Metro station ridership in 2017 Train Media (sourced from Tokyo Metro) Retrieved July 23, 2018.
^ Tobu Timetable, 16 March 2013, p.168-176
^ Metropolis, "Commute", June 12, 2009, p. 07. Capacity is defined as all passengers having a seat or a strap or door railing to hold on to.
^ 東京メトロ「兄弟車」有楽町線・副都心線17000系と半蔵門線18000系 [Tokyo Metro "Brother Car" Yurakucho Line & Fukutoshin Line 17000 series and Hanzomon Line 18000 series]. Mynavi News (in Japanese). Mynavi Corporation. 2021-09-25. Retrieved 2022-06-20.
^ Suzuki, Riki (March 2003). 営団地下鉄08系 [Teito Rapid Transit Authority 08 series]. Japan Railfan Magazine (in Japanese). Vol. 43, no. 503. Japan: Koyusha Co., Ltd. pp. 54–60.
^ The 地下鉄 [The Subway]. Japan: Sansuisha. 2004. p. 28. ISBN 4-06-366218-7.
^ "「営団地下鉄」から「東京メトロ」へ" [From "Teito Rapid Transit Authority" to "Tokyo Metro"]. Tokyo Metro Online. 2006-07-08. Archived from the original on 16 May 2012. Retrieved 29 May 2022.
^ "混雑率の推移".
^ Kikuchi, Daisuke (6 July 2017). "Tokyo plans new effort to ease commuter hell on rush-hour trains". The Japan Times. Archived from the original on 6 July 2017.