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Tokyo Metro Hanzōmon Line
A Hanzōmon Line 18000 series train
Overview
Other name	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	Purple
Service
Type	Heavy railrapid 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)[1]
History
Opened	1 August 1978; 47 years ago (1978-08-01)
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	Overhead line, 1,500 V DC
Operating speed	80 km/h (50 mph)
Signalling	Cab signalling, Closed block
Train protection system	New CS-ATC
Maximum incline	3.5%
Route map Legend Keio Inokashira Line IN DT Through-running to Den-en-toshi Line Tōyoko Line TY JYJAJS Yamanote Line,Saikyō Line Shōnan–Shinjuku Line Z01 Shibuya GGinza Line F Fukutoshin Line Z02 Omotesandō GC Ginza Line Chiyoda Line Z03 Aoyama-itchōme GE Ginza Line Ōedo Line Ginza LineG Marunouchi LineM at Akasaka- mitsuke Z04 Nagatachō NNamboku Line YYūrakuchōLine Z05 Hanzōmon S Shinjuku Line Z06 Kudanshita TTōzai Line Z07 Jimbōchō IMita Line S Shinjuku Line Chiyoda LineC Mita LineI Z08 Ōtemachi MMarunouchi Line Lines throughTokyo Station Tōzai Line T Z09 Mitsukoshimae G Ginza Line JO Sōbu Line (Rapid) atShin-Nihonbashi H Hibiya Line atNingyōchō A Asakusa Line atNingyōchō Z10 Suitengūmae Z11 Kiyosumi-shirakawa EŌedo Line Z12 Sumiyoshi SShinjuku Line Z13 Kinshicho JBJO Chūō–Sōbu Line Sōbu Line (Rapid) Z14 Oshiage AAsakusa Line TS Tobu Skytree Line atTokyo Skytree KS Keisei Oshiage Line TS Tobu Kameido Line TS Tobu Skytree Line

TheTokyo 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 byTokyo Metro.

The 16.8 km (10.4 mi) line serves the wards ofShibuya,Minato,Chiyoda,Chūō,Kōtō, andSumida. Despite being shorter in length than nearly all other Tokyo subway lines, the Hanzōmon Line operates some of the longestthrough services withprivate railways – namelyTōkyū Corporation andTobu Railway. The line is connected toTōkyū Den-en-toshi Line atShibuya Station to the south, and to theTobu Skytree Line atOshiage to the north. Through trains operate betweenChūō-Rinkan on the Tōkyū Den-en-toshi Line andTōbu-Dōbutsu-Kōen on theTobu Skytree Line, onward toKuki on theTobu Isesaki Line andMinami-Kurihashi on theTobu 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 theTokyo Metro Ginza Line at five stations (the four stations betweenShibuya andNagatachō, as well as atMitsukoshimae Station.

The line is named after the west gate of theImperial Palace (Hanzōmon), which in turn is named after 16th century samuraiHattori 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 theTokyo 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 betweenShibuya andOmotesandō stations.^[3]

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

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

• Tokyo Metro 18000 series^[4]
• Tokyo Metro 08 series^[5]
• Tokyo Metro 8000 series
• Tokyu 2020 series
• Tokyu 5000 series
• Tobu 50000 series
• Tobu 50050 series

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

• Tobu 30000 series
• Tokyu 2000 series
• Tokyu 8500 series
• Tokyu 8590 series

• 
  Tokyu 8500 series

The Hanzōmon Line was first planned in 1968, along with theChiyoda Line andYūrakuchō Line, as a reliever line for the heavily congestedGinza Line. Its initial routing was fromFutako-Tamagawa Station on theTōkyū Den-en-toshi Line to a new station in the Fukagawa district ofKōtō. In 1985, a second draft plan from the Ministry of Transportation moved the Hanzōmon Line's final terminus toMatsudo. During the planning stage, it was known asLine 11.

Construction began in 1972 and the majority of the line was expected to open in 1975. However, theTeito 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 theImperial Palace toŌtemachi Station. TRTA decided to divert the route around the north side of the Imperial Palace, which required the construction of three new stations. Aneminent 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 byTokyo Metro after the privatization of the Teito Rapid Transit Authority (TRTA) in 2004.^[7]

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

• Tokyo Metro website(in English)

• Lines of Tokyo Metro
• Railway lines in Tokyo
• 1067 mm gauge railways in Japan
• Railway lines opened in 1978
• 1978 establishments in Japan

• CS1 uses Japanese-language script (ja)
• CS1 Japanese-language sources (ja)
• Articles with short description
• Short description is different from Wikidata
• Articles needing additional references from April 2022
• All articles needing additional references
• Articles containing Japanese-language text