{{Short description|Railway line in Tokyo, Japan}} {{Use dmy dates|date=February 2015}} {{Infobox rail line | box_width = | name = Inokashira Line | native_name = {{lang|ja|井の頭線}} | color = {{rcr|Keio|Inokashira}}<!--Keio Inokashira Line blue--> | logo = Number prefix Keio-Inokashira-line.svg | logo_width = | image = Inokashira line Series1000.jpg | image_width = 300px | caption = Keio 1000 series EMUs on the Inokashira Line in June 2020 | type = Commuter rail | system = | status = | locale = Tokyo | start = {{STN|Shibuya|x}} | end = {{STN|Kichijōji|x}} | stations = 17 | routes = | daily_ridership = 547,845 (2010)<ref name="ridership">[http://www.train-media.net/report/1110/keio.pdf Keio ridership in 2010] ''Train Media (sourced from Keio)'' Retrieved May 28, 2012.</ref> | open = {{start date and age|1933|08|01|df=y}} | lastextension = {{start date and age|1934|04|01|df=y}} | close = | owner = Keio Corporation | operator = | character = | depot = Fujimigaoka | stock = Keio 1000 series | linelength = {{cvt|12.7|km|mi|abbr=on}} | tracklength = | tracks = Double-track | gauge = {{RailGauge|1067mm|lk=on}} | electrification = {{1,500 V DC}} (overhead catenary) | speed = {{cvt|90|km/h|mph|abbr=on|round=5}} | elevation = | minradius = {{cvt|200|m|ft}} | map = {{routemap|inline=1 |map = \\tSTR~~ ~~ ~~10px|UpTokyo Metro Ginza Line tSTR\\\tSTRe\~~ ~~ ~~10px|UpTokyo Metro Hanzōmon Line extSTRq!~tSTR\extSTRq\extSTRq\extSTRq!~STR\extBHFq~~ ~~ ~~10px|LeftTokyo Metro Fukutoshin Line tSTR\\\STR\KBHFaq~~ ~~ ~~Tōkyū Tōyoko Line10px|Right tKRZ\STRq\STRq\KRZo\BHFq~~ ~~ ~~10px|LeftSaikyō/Shōnan Shinjuku lines10px|Right tKRZ\STRq\STRq\KRZo\BHFq~~ ~~ ~~10px|LeftYamanote Line10px|Right tBHF\KBHFa\\BHF\~~0.0~~{{STN|Shibuya|x}} tSTR\tSTRa\\KDSTe\~~ ~~ ~~Tokyo Metro Shibuya depot tSTRl\tKRZt\tSTRq\\~~ ~~ ~~Tōkyū Den-en-toshi Line10px|Right tSTRe\\ BHF\\~~0.5~~{{STN|Shinsen|x}} TUNNEL1\\ BHF\\~~1.4~~{{STN|Komaba-Tōdaimae|x}} BHF\\~~2.4~~{{STN|Ikenoue|x}} STR\\ BHFq\KRZo\STRq\\~~ ~~ ~~Odakyū Odawara Line BHF\\~~3.0~~{{STN|Shimo-Kitazawa|x}} BHF\\~~3.5~~{{STN|Shindaita|x}} BHF\\~~4.0~~{{STN|Higashi-Matsubara|x}} STR\\ BHFq\KRZu\\\~~ ~~ ~~10px|LeftKeiō Line10px|Right BHF\\~~4.9~~{{STN|Meidaimae|x}} BHF\\~~6.0~~{{STN|Eifukuchō|x}} exSTR+l\eABZgr\\\ exKDSTe\STR\\\~~ ~~ ~~''Eifukuchō depot''~~(closed) BHF\\~~6.7~~{{STN|Nishi-Eifuku|x}} BHF\\~~7.5~~{{STN|Hamadayama|x}} BHF\\~~8.7~~{{STN|Takaido|x}} BHF\\~~9.5~~{{STN|Fujimigaoka|x}} ABZgl\STR+r\ STR\KDSTe\~~Fujimigaoka depot BHF\\~~10.2~~{{STN|Kugayama|x}} BHF\\~~11.2~~{{STN|Mitakadai|x}} BHF\\~~12.1~~{{STN|Inokashira-kōen|x}} STR+r\STR\\\~~ ~~ ~~10px|LeftChūō-Sōbu Line10px|Down vSTR+r-SHI1+r\STR\\\~~ ~~ ~~10px|LeftChūō Line (Rapid)10px|Down vBHF\KBHFe\\\~~12.7~~{{STN|Kichijōji|x}} }} | map_state = collapsed }}
The {{Nihongo|'''Inokashira Line'''|井の頭線|Inokashira-sen}} is a railway line operated by the Japanese private railway operator Keio Corporation in the western suburbs of Tokyo, connecting {{STN|Shibuya|x}} in Tokyo with {{STN|Kichijōji|x}} in Musashino City. It is not physically connected to the Keio Main Line Network, but a transfer is available at Meidaimae Station. This line is {{track gauge|1067mm}} gauge, unlike other Keio lines which are {{track gauge|1372mm|lk=on}} gauge.
==Operation== Keio operates two types of trains on the line: all-stations {{Nihongo|"Local"|各停|Kakutei}} or ({{Nihongo||各駅停車|Kakueki Teisha}}) services and limited-stop {{Nihongo|Express|急行|Kyūkō}} services. During the daytime off-peak, one local and one express operate every 8 minutes on the line.
==Stations== All stations are in Tokyo.
{| class="wikitable" |- ! No. ! Station ! Japanese ! Distance (km) ! Express ! Transfers ! Location |- |{{KOSN|IN|01|size=35}} | {{STN|Shibuya|x}} | 渋谷 | align=right| 0.0 | align=center| O | {{plainlist| *{{ric|JR East|JY|name=y}} (JY20) *{{ric|JR East|JA|name=y}} (JA10) *{{ric|JR East|JS|name=y}} (JS19) *{{ric|Tokyu|TY|name=y}} (TY01) *{{ric|Tokyu|DT|name=y}} (DT01) *{{ric|Tokyo Metro|G|name=y}} (G-01) *{{ric|Tokyo Metro|Z|name=y}} (Z-01) *{{ric|Tokyo Metro|F|name=y}} (F-16) }} | rowspan="2"|Shibuya |- |{{KOSN|IN|02|size=35}} | {{STN|Shinsen|x}} | 神泉 | align=right| 0.5 | align=center| <nowiki>|</nowiki> | rowspan="3"| |- |{{KOSN|IN|03|size=35}} | {{STN|Komaba-Tōdaimae|x}} | 駒場東大前 | align=right| 1.4 | align=center| <nowiki>|</nowiki> | Meguro |- |{{KOSN|IN|04|size=35}} | {{STN|Ikenoue|x}} | 池ノ上 | align=right| 2.4 | align=center| <nowiki>|</nowiki> | rowspan="5"|Setagaya |- |{{KOSN|IN|05|size=35}} | {{STN|Shimo-Kitazawa|x}} | 下北沢 | align=right| 3.0 | align=center| O | {{ric|Odakyu|Odawara|name=y}} (OH07) |- |{{KOSN|IN|06|size=35}} | {{STN|Shindaita|x}} | 新代田 | align=right| 3.5 | align=center| <nowiki>|</nowiki> | rowspan="2"| |- |{{KOSN|IN|07|size=35}} | {{STN|Higashi-Matsubara|x}} | 東松原 | align=right| 4.0 | align=center| <nowiki>|</nowiki> |- |{{KOSN|IN|08|size=35}} | {{STN|Meidaimae|x}} | 明大前 | align=right| 4.9 | align=center| O | {{ric|Keio|Keio|name=y}} (KO06) |- |{{KOSN|IN|09|size=35}} | {{STN|Eifukuchō|x}} | 永福町 | align=right| 6.0 | align=center| O | rowspan="8"| | rowspan="6"|Suginami |- |{{KOSN|IN|10|size=35}} | {{STN|Nishi-Eifuku|x}} | 西永福 | align=right| 6.7 | align=center| <nowiki>|</nowiki> |- |{{KOSN|IN|11|size=35}} | {{STN|Hamadayama|x}} | 浜田山 | align=right| 7.5 | align=center| <nowiki>|</nowiki> |- |{{KOSN|IN|12|size=35}} | {{STN|Takaido|x}} | 高井戸 | align=right| 8.7 | align=center| <nowiki>|</nowiki> |- |{{KOSN|IN|13|size=35}} | {{STN|Fujimigaoka|x}} | 富士見ヶ丘 | align=right| 9.4 | align=center| <nowiki>|</nowiki> |- |{{KOSN|IN|14|size=35}} | {{STN|Kugayama|x}} | 久我山 | align=right| 10.2 | align=center| O |- |{{KOSN|IN|15|size=35}} | {{STN|Mitakadai|x}} | 三鷹台 | align=right| 11.2 | align=center| <nowiki>|</nowiki> | rowspan="2"|Mitaka |- |{{KOSN|IN|16|size=35}} | {{STN|Inokashira-kōen|x}} | 井の頭公園 | align=right| 12.1 | align=center| <nowiki>|</nowiki> |- |{{KOSN|IN|17|size=35}} | {{STN|Kichijōji|x}} | 吉祥寺 | align=right| 12.7 | align=center| O | {{plainlist| *{{ric|JR East|JC|name=y}} (JC11) *{{ric|JR East|JB|name=y}} (JB02) }} | Musashino |}
==History== The line opened in 1933, dual track connecting Shibuya in Tokyo to {{STN|Inokashira-kōen|x}}, owned by {{Nihongo|Teito Electric Railway|帝都電鉄|Teito Dentetsu}}, part of the Odakyu Group. The track gauge used was the same {{track gauge|1067mm}} as for other Odakyu lines, and the overhead power supply was 600 V DC.<ref name="terada2013">{{cite book| last = Terada| first = Hirokazu |title = データブック日本の私鉄 |trans-title=Databook: Japan's Private Railways| publisher = Neko Publishing| date = 19 January 2013| location = Japan| pages = 66–67, 227–229| isbn = 978-4-7770-1336-4}}</ref> The line was extended to {{STN|Kichijōji|x}} in April 1934.<ref name="terada2013"/> In May 1940, the company merged with the Odakyu Electric Railway, and on 1 May 1942, Odakyu merged with {{Nihongo|Tokyo Yokohama Electric Railway|東京横浜電鉄}} to become a part of Tokyo Kyuko Electric Railway (present-day Tokyu Corporation), with the Teito Line renamed the Inokashira Line.<ref name="terada2013"/>
After World War II, Greater Tokyu was divided, and the Inokashira Line came under Keio ownership.<ref name="terada2013"/>
A line known as the {{Nihongo|Daita Link Line|代田連絡線|Daita-renraku-sen}} connected Daita-nichōme Station (now Shindaita Station) on the Inokashira Line with Setagaya-Nakahara Station (now Setagaya-Daita Station) on the Odakyū Odawara Line from June 1945, but this was closed in 1952. The track and overhead wire was entirely removed in 1953, although some traces of the trackbed remain today.
Two stations, {{Nihongo|Tōdaimae|東大前駅|Tōdaimae-eki}} and {{Nihongo|Komaba|駒場駅|Komaba-eki}}, closed in July 1965 and were replaced by a new station, Komaba-Tōdaimae Station.
From 25 February 1969, following the voltage being increased to 1500 V DC, air-conditioned trains were introduced on the Inokashira Line.<ref name="terada2013"/> From 30 April 1971, the 3000 series trains were lengthened to 5-cars, and from 15 December 1971, limited-stop "Express" services started.<ref name="terada2013"/>
From 22 February 2013, station numbering was introduced on Keio lines. Inokashira Line stations were numbered prefixed with the letters "IN".<ref name="keio20130118">{{cite web|url= http://www.keio.co.jp/news/backnumber/news_release2012/nr130118_numbering.pdf|script-title= ja:京王線・井の頭線全駅で「駅ナンバリング」を導入します。|trans-title= Station numbering to be introduced on Keio Line and Inokashira Line|date= 18 January 2013|work= News release|publisher= Keio Corporation|language= ja|access-date= 23 February 2013|archive-date= 16 June 2019|archive-url= https://web.archive.org/web/20190616182704/https://www.keio.co.jp/news/backnumber/news_release2012/nr130118_numbering.pdf|url-status= dead}}</ref>
==Rolling stock== * Keio 1000 series 5-car EMUs (since 9 January 1996)<ref name="terada2013"/>
<gallery widths=180> File:Keio 1000ivory.jpg|1000 series EMU, October 2008 </gallery>
===Former rolling stock=== * Keio 3000 series 5-car EMUs (30 December 1962 – 2011)<ref name="terada2013"/>
<gallery widths=180> File:Keio3727F.jpg|3000 series EMU, May 2006 </gallery>
==See also== * List of railway lines in Japan
==References== This article incorporates material from the corresponding article in the Japanese Wikipedia {{reflist}}
==External links== {{Commons category|Keiō Inokashira Line}} * [http://www.keio.co.jp/english/index.html Keio Corporation website]
{{Keio Inokashira Line}} {{Keio transit}} {{Tokyo transit}}
{{DEFAULTSORT:Keio Inokashira Line}} Category:Keio Inokashira Line Inokashira Line Category:Railway lines in Tokyo Category:1067 mm gauge railways in Japan Category:Railway lines opened in 1933 Category:1933 establishments in Japan