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A Keio 8000 series EMU on the Keio Line in 2007
|Daily ridership||1,349,238 (daily, 2010)|
|Line length||37.9 km (23.55 mi)|
|Track gauge||1,372 mm (4 ft 6 in)|
|Electrification||1,500 V DC|
|Operating speed||110 km/h (70 mph)|
The Keio Line (京王線 Keiō-sen?) is a 37.9 km railway line in western Tokyo, Japan, owned by the private railway operator Keio Corporation. It connects Shinjuku, Tokyo, with the suburban city of Hachiōji. The Keio Line is part of a network with interchanges and through running to other lines of Keio Corporation: the Keio New Line, Keio Sagamihara Line, the Keio Keibajo Line, the Keio Dobutsuen Line, the Keio Takao Line, and the 1,067 mm (3 ft 6 in) gauge Keio Inokashira Line.
Five types of rapid services are operated on the Keiō Line, along with local trains. Destinations are from Shinjuku unless otherwise indicated. English abbreviations are tentative for this article.
- Special Express (特急 tokkyū?) (SpE)
- Most services bound for Keiō-Hachiōji and Takaosanguchi; can make the run from Shinjuku in 37 minutes and to Shinjuku in 39 minutes.
- Semi Special Express (準特急 juntokkyū?) (SSE)
- Most services bound for Keiō-Hachiōji and Takaosanguchi.
- Express (急行 kyūkō?) (E)
- Most services run from the Toei Shinjuku Line through onto the Sagamihara Line via Chōfu; other services in mornings and evenings are bound for Keiō-Hachiōji, Takaosanguchi and Takahatafudō.
- Semi Express (区間急行 kukan kyūkō?) (SeE)
- Most bound for on the Sagamihara Line. Until 2013, these were weekday-only services called "Commuter Rapid" (通勤快速 tsūkin kaisoku?).
- Rapid (快速 kaisoku?) (R)
- Most services for Hashimoto and Keiō-Tama-Center on the Sagamihara Line.
- Local (各駅停車 kakueki teisha?)
- Also known as kakutei (各停?) for short. Until 2001 it was called futsū (普通?).
- All stations are located in Tokyo.
- Local trains stop at all stations.
- ● - all trains stop at this station;◇- trains stop at this station during special events;｜- all trains pass
- R - Rapid; SeE - Semi Express; E - Express; SSE - Semi-Special Express; SpE - Special Express
|Hatsudai (KO02) and Hatagaya (KO03) stations are only accessible via the Keio New Line.|
|KO04||Sasazuka||笹塚||3.6||3.6||●||●||●||●||｜||Keio New Line (some trains through from Chōfu)||Shibuya|
|KO06||Meidaimae||明大前||0.8||5.2||●||●||●||●||●||Keio Inokashira Line|
|KO07||Shimo-Takaido||下高井戸||0.9||6.1||●||｜||｜||｜||｜||Tokyu Setagaya Line|
|KO18||Chōfu||調布||0.6||15.5||●||●||●||●||●||Keio Sagamihara Line (some trains through from Shinjuku)|
|KO21||Musashinodai||武蔵野台||1.1||18.8||●||｜||｜||｜||｜||Seibu Tamagawa Line (Shiraitodai)||Fuchū|
|KO23||Higashi-Fuchū||東府中||0.8||20.4||●||●||●||◇||◇||Keio Keibajo Line (some trains through from Shinjuku)|
|KO25||Bubaigawara||分倍河原||1.2||23.1||●||●||●||●||●||■ Nambu Line|
|KO29||Takahatafudō||高幡不動||1.7||29.7||●||●||●||●||●||Keio Dobutsuen Line (some trains through from Shinjuku)
Tama Toshi Monorail Line
|KO33||Kitano||北野||1.2||36.1||●||●||●||●||●||Keio Takao Line (some trains through from Shinjuku)|
Events at stations marked with a "◇" symbol for which trains make special seasonal stops:
- Fuda Station: Chofu City Fireworks Festival
- Tobitakyū Station: Soccer games, concerts, etc. at Ajinomoto Stadium
- Higashi-Fuchū Station: Events (including the Arima Kinen) at Tokyo Racecourse; transfer to the Keiō Keibajō Line
- Nakagawara Station: Seiseki-Tamagawa Fireworks Festival
- Mogusaen Station: Saturdays and holidays during the Plum Blossom Festival
The Shinjuku to Chōfu section opened in 1913 as a 1,372 mm (4 ft 6 in) gauge line electrified at 600 V DC, and was progressively extended in both directions so that the line connected Shinjuku and Fuchu in 1916. The Sasazuka to Fuchu section was double-tracked between 1920 and 1923.
The extension to Higashi-Hachiōji (now Keiō-Hachiōji) was completed by a related company, Gyokunan Electric Railway, in 1925. This electrified line was built to the Japanese standard narrow gauge of 1,067 mm (3 ft 6 in) in an attempt to seek a government subsidy, and so trains from each railway could not operate on the other's tracks. The subsidy application was rejected on the basis that the line competed with the Japanese Government Railways (JGR) Chuo Main Line, and so the Gyokunan Electric Railway merged with the Keio Electric Railway Co., the line was regauged to 1,372 mm, and operation of trains from Shinjuku to Higashi-Hachiōji commenced in 1928.
The Fuchu to Nakagawara and Seiseki-Sakuragaoka to Kitano sections were double-tracked in 1929. In 1963, the Shinjuku underground station, including double-tracking from Sasazuka, commenced service, and the overhead line voltage was increased to 1,500 V DC. The Nakagawara to Seiseki-Sakuragaoka section was double-tracked in 1964. The Kitano to Keio-Hachioji section was double-tracked in 1970, and the relocation of the terminal station underground was completed in 1989.
From the start of the revised timetable introduced on 25 September 2015, Semi Special Express services were also to stop at Sasazuka and Chitose-Karasuyama stations, and Semi Express services will also stop at Sengawa Station.
This article incorporates material from the corresponding article in the Japanese Wikipedia.
- Keio ridership in 2010 Train Media (sourced from Keio) Retrieved May 28, 2012.
- During race days at Tokyo Racecourse, express services run through on the Keibajō Line to Fuchukeibajō-Shōmonmae; there is also direct express service through on the Dōbutsuen Line to Tama-Dōbutsukōen.
- 9月25日（金）に京王線・井の頭線のダイヤ改正を実施します [Revised timetable to be introduced on Keio Line and Inokashira Line from Friday 25 September] (pdf). News release (in Japanese). Japan: Keio Corporation. Retrieved 29 August 2015.
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