Keiyō Line

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Not to be confused with the Keiō Line.
     Keiyō Line
E233kei 5000bandai.JPG
Keiyō Line E233-5000 series EMU, July 2010
Overview
Type Commuter rail
Locale Tokyo, Chiba Prefecture
Termini Tokyo
Soga
Operation
Opening 1975
Owner JR East
Depot(s) Narashino
Technical
Line length 43 km (27 mi)
Track gauge 1,067 mm (3 ft 6 in)
Electrification 1,500 V DC overhead catenary
Operating speed 100 km/h (62 mph)
Route map
JR Keiyo Line linemap.svg

The Keiyō Line (京葉線 Keiyō-sen?) is a railway line connecting Tokyo and Chiba in Japan, running mainly along the edge of Tokyo Bay. It is operated by the East Japan Railway Company (JR East).

It provides the main rail access to the Tokyo Disney Resort and the Makuhari Messe exhibition center. The terminus at Tokyo Station is located underground, some distance to the south of the main station complex approximately halfway to Yūrakuchō Station. This means transfer between other lines at Tokyo Station can take between 15 and 20 minutes.

The name "Keiyō" is derived from the second characters of the names of the locations linked by the line, Tokyo (東京?) and Chiba (千葉?). It should not be confused with the Keiō Line, a privately operated commuter line in western Tokyo.

Services[edit]

Map of the Keiyō Line and surrounding JR lines
  • Keiyō Line local trains stop at all stations between Tokyo and Soga except Nishi-Funabashi.
  • Keiyō Line rapid service trains stop at Tokyo, Hatchōbori, Shin-Kiba, Maihama, Shin-Urayasu, Minami-Funabashi, Kaihin-Makuhari, and all stops to Soga.
  • Musashino Line local trains stop at Nishi-Funabashi, Minami-Funabashi, Shin-Narashino, and Kaihin-Makuhari.
  • Musashino Line rapid service trains stop at all stations between Tokyo and Nishi-Funabashi before continuing to the Musashino Line.
  • Commuter rapid service (通勤快速 tsūkin-kaisoku?) trains stop at Tokyo, Hatchōbori, Shin-Kiba, and Soga.

Station list[edit]

  • All trains (except limited express services) stop at stations marked "●" and pass those marked "|". Trains do not travel past those stations marked "∥".
  • Musashino Line through services stop at stations marked "◆" on weekends and at stations marked "◆" and "○" during all-night services on New Year's Eve.
  • For the Wakashio and Sazanami limited express services, see their respective articles.
Station Japanese Distance (km) Keiyō
Line
Musashino
Line (thru)
Transfers Location
Between
stations
Total Local Keiyō
Rapid
Comm.
Rapid
Local Rapid
Tokyo 東京 - 0.0   Tōhoku Shinkansen, Jōetsu Shinkansen, Nagano Shinkansen, Yamanote Line, Chūō Line, Tōkaidō Main Line, Sōbu Line (Rapid), Yokosuka Line, Keihin-Tōhoku Line
Tōkaidō Shinkansen
Subway TokyoMarunouchi.png Tokyo Metro Marunouchi Line (M-17)
Chiyoda Tokyo
Hatchōbori 八丁堀 1.2 1.2 Subway TokyoHibiya.png Tokyo Metro Hibiya Line (H-11) Chūō
Etchūjima 越中島 1.6 2.8   Kōtō
Shiomi 潮見 2.6 5.4  
Shin-Kiba 新木場 2.0 7.4 Rinkai Line
Subway TokyoYurakucho.png Tokyo Metro Yūrakuchō Line (Y-24)
Kasairinkaikōen 葛西臨海公園 3.2 10.6   Edogawa
Maihama 舞浜 2.1 12.7 Maihama Resort Line: Disney Resort Line (Resort Gateway) Urayasu Chiba
Shin-Urayasu 新浦安 3.4 16.1  
Ichikawa-Shiohama 市川塩浜 2.1 18.2   Ichikawa
Nishi-Funabashi 西船橋 5.9 24.1
[* 1]
Musashino Line (through service), Sōbu Line
Subway TokyoTozai.png Tokyo Metro Tōzai Line (T-23)
Tōyō Rapid Railway Line
Keisei Main Line (Keisei Nishifuna)
Funabashi
Futamata-Shinmachi 二俣新町 4.4 22.6
[* 2]
Distance is from Ichikawa-Shiohama Ichikawa
Minami-Funabashi 南船橋 3.4 26.0 Distance between Nishi-Funabashi and Minami-Funabashi is 5.4 km Funabashi
Shin-Narashino 新習志野 2.3 28.3   Narashino
Kaihin-Makuhari 海浜幕張 3.4 31.7   Mihama-ku, Chiba
Kemigawahama 検見川浜 2.0 33.7  
Inage-Kaigan 稲毛海岸 1.6 35.3  
Chiba-Minato 千葉みなと 3.7 39.0 Chiba Urban Monorail: Line 1 Chūō-ku, Chiba
Soga 蘇我 4.0 43.0 Uchibō Line, Sotobō Line (some through services to each)[* 3]
  1. ^ Keiyō trains between Tokyo and Soga do not pass through Nishi-Funabashi.
  2. ^ Musashino rapid trains do not pass through Futamata-Shinmachi.
  3. ^ Some local and Keiyō rapid, and all Commuter Rapid trains, run through to the Uchibō Line (mainly to Kimitsu or Kazusa-Minato) or the Sotobō Line (mainly Kazusa-Ichinomiya, Katsuura, and via the Tōgane Line to Narutō).

Rolling stock[edit]

All Keiyo Line rolling stock is based at the Keiyo Rolling Stock Center near Shin-Narashino Station

  • 205 series 8-car EMUs (Musashino Line livery)
  • 209-500 series 10-car EMUs (Keiyo Line magenta stripe) (since October 2008)
  • 209-500 series 8-car EMUs (Musashino Line livery) (since 4 December 2010)[1]
  • E233-5000 series 10-car EMUs (Keiyo Line magenta stripe) (since 1 July 2010)[2]

Rolling stock used in the past[edit]

  • 103 series 4/6/10-car EMUs (sky blue livery) (from 1986 until November 2005)
  • 165 series 3-car EMU (x1) Shuttle Maihama (from 1990 until 1995)
  • 201 series 10-car EMUs (sky blue livery) (from August 2000 until 20 June 2011)[3]
  • 205 series 10-car EMUs (Keiyo Line magenta stripe) (from March 1990)
  • E331 series 14-car EMU (x1) (magenta stripe) (from March 2007 until 2011)[4]

History[edit]

The Keiyō Line was initially planned as a freight-only line. Its first section opened on 10 May 1975 as a 6.5 km link between the Chiba Freight Terminal (now the Mihama New Port Resort between Inage-Kaigan and Chiba-Minato Stations) and the freight yard next to Soga Station.[5] Passenger service began on 3 March 1986 between Minami-Funabashi and Chiba-Minato, and was extended eastward to Soga and westward to Shin-Kiba on 1 December 1988.[5]

The final section of the Keiyō Line between Tōkyō and Shin-Kiba opened on 10 March 1990.[5] The platforms at Tokyo Station were originally built to accommodate the Narita Shinkansen, a planned (but never built) high-speed rail line between central Tokyo and Narita International Airport.[6]

Planners originally envisioned the Keiyō Line interfacing with the Rinkai Line at Shin-Kiba, thus providing a through rail connection between Chiba and the Tokyo Freight Terminal in eastern Shinagawa, and also completing the outer loop for freight trains around Tokyo formed by the Musashino Line. This original plan would also allow through service with the Tōkaidō Main Line, allowing freight trains from central and western Japan to reach Chiba and points east.

However, in the 1990s, as the artificial island of Odaiba began developing as a commercial and tourist area in the middle of the Rinkai Line route, the Rinkai Line was re-purposed for use as a passenger line. While there is a through connection between the Rinkai Line and the Keiyō Line, it is only used by passenger trains in charter service, usually carrying groups to the Tokyo Disney Resort.

References[edit]

  1. ^ JR電車編成表 2013夏 [JR EMU Formations - Summer 2013]. Japan: JRR. May 2013. p. 47. ISBN 978-4-330-37313-3. 
  2. ^ "E233系5000番代 営業運転開始 (E233-5000 series enters revenue service)". Hobidas (in Japanese). Neko Publishing. 1 July 2010. Retrieved 24 March 2014. 
  3. ^ "京葉線の201系が定期運用を終える" [Keiyō Line 201 series withdrawn from regular service]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 21 June 2011. Retrieved 21 June 2011. 
  4. ^ "E331系AK1編成長野へ配給" [E331 series set AK1 moved to Nagano]. RM News (in Japanese). Japan: Neko Publishing Co., Ltd. 27 March 2014. Archived from the original on 27 March 2014. Retrieved 10 April 2014. 
  5. ^ a b c Ishino, Tetsu, ed. (1998). 停車場変遷大辞典 国鉄・JR編 [Station Transition Directory - JNR/JR] I. Japan: JTB. p. 211. ISBN 4-533-02980-9. 
  6. ^ "東京駅の京葉線、なぜ遠い?近道は有楽町 成田新幹線構想を再利用" [Why is Keiyo Line so far away at Tokyo Station?]. Nikkei Shimbun. 4 February 2014. Retrieved 4 February 2014.  (registration required)

External links[edit]