The (常磐線) is a rail line in Japan and is part of the East Japan Railway Company (JR East) system. It begins in Taitō-ku in Tokyo and follows the Pacific coasts of Chiba , Ibaraki , and Fukushima Prefectures before the line officially ends in Iwanuma in Miyagi Prefecture . However, some trains continue north on the Tōhoku Main Line tracks all the way to Sendai .
When recorded (such as in timetables), the Jōban Line is typically split into two parts: Ueno — Iwaki and Iwaki — Sendai. This is because there are very few trains that go through both halves of the line. The exceptions are the "Super Hitachi" Expresses which operate between Ueno and Sendai/Haranomachi, trains going to Yotsukura and Hisanohama from Mito, and trains going to Ueno and Mito from Kusano, Hisanohama, and Sōma.
- January 16 1889 : Mito Railway (Mito — Oyama) begins operation.
- November 26 1890 : Mito Railway Freight Line (Mito — Nakagawa) begins operation.
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- November 4 1895 : Japan Railway Tsuchiura Line (Tsuchiura — Tomobe) begins operation.
- December 1 1895 : Hatori Station opens.
- December 25 1896 : Tsuchiura Line (Tabata — Tsuchiura), Sumidagawa Line (Tabata — Sumidagawa) begin operation.
- February 25 1897 : Iwaki Line (Mito — Taira Iwaki ) begins operation.
- May 17 1897 : Tsuchiura Line Kameari Station opens.
- August 29 1897 : Iwaki Line (Taira — Kunohama) begins operation.
- November 10 1897 : Iwaki Line (Nakamura Sōma — Iwanuma) begins operation.
- December 27 1897 : Tsuchiura Line Kanamachi Station opens.
- January 1898 : Kitasenju — Sumidagawa connection opens.
- April 1 1898 : Ishigami Station opens.
- April 3 1898 : Iwaki Line (Haranomachi — Nakamura) begins operation.
- May 11 1898 : Iwaki Line (Odaka — Haranomachi) begins operation.
- August 6 1898 : Tsuchiura Line Mabashi Station opens.
- August 23 1898 : Iwaki Line (Kunohama — Odaka) begins operation, connecting Tabata and Iwanuma. Tsuchiura Line and Mito Line (Tomobe — Mito) and Iwaki Line are collectively renamed the Kaigan Line.
- December 1 1898 : Taka Station is renamed Iwaki-Ōta Station.
- August 4 1900 : Sanuki Station opens.
- November 22 1904 : Ōno Station opens.
- April 1 1905 : With the completion of Mikawashima — Nippori connection, the present-day route is finished. Nippori and Mikawashima Stations open. Service from Ueno to Tabata and back is abolished.
- November 1 1906 : Japan Railway is nationalized.
- March 25 1909 : Tatsuta Station opens.
- October 12 1909 : Kaigan Line split and renamed: Jōban Line (Nippori — Iwanuma) and Sumidagawa Line (Tabata — Sumidagawa). Jōban Line also handles freight services.
- February 16 1910 : Minami-Nakagō Station opens.
- March 18 1910 : Katsuta and Ogitsu Stations open.
- May 1 1911 : Kita-Kogane Station opens.
- May 5 1911 : Sumidagawa Line is merged into the Jōban Line.
- June 1 1915 : Yoshida Station is renamed Hamayoshida Station.
- March 15 1921 : Yonomori Station opens.
- August 15 1922 : Nittaki Station opens.
- '' blossom-viewing season.
- October 28 1925 : Nippori — Taira connection finished (joined with northern tracks in 1965).
- December 11 1936 : Nippori — Matsudo tracks are electrified.
- October 1 1939 : Shimomago Station is renamed Hitachi-Taga Station.
- October 20 1939 : Sukegawa Station is renamed Hitachi Station.
- February 15 1944 : Momouchi signal box is built between Namie and Odaka.
- February 20 1944 : Suetsugi signal box is built between Kunohama and Hirono.
- June 1 1947 : Suetsugi signal box becomes Suetsugi Station.
- August 10 1948 : Momouchi signal box becomes Momouchi Station.
- May 10 1949 : Shimoyama Station opens.
- June 1 1949 : Matsudo — Toride tracks are electrified.
- in Nihonbashi.
- May 10 1950 : Sekimoto Station is renamed Ōtsukō Station.
- May 1 1952 : Kita-Matsudo Station opens.
- July 10 1952 : Komagamine Station opens.
- October 1 1953 : Minami-Kashiwa Station opens.
- December 20 1956 : Tsuzura Station is renamed Uchigō Station.
- April 1 1957 : Ishigami Station is renamed Tōkai Station.
- June 1 1958 : Semi-express "Tokiwa" begins operation.
- October 10 1958 : The Special Express "Hatsukari" begins operation (Ueno — Aomori). It stops at Ueno, Mito, Taira, and Sendai Stations when it runs on the Jōban Line tracks.
- October 1 1959 : Nagatsuka Station is renamed Futaba Station.
- October 1 1960 : Kanayama signal box is built between Tatsuta and Tomioka. Ōkuma signal box is built between Watari and Iwanuma.
- March 20 1961 : Nakamura Station is renamed Sōma Station.
- June 1 1961 : Toride — Katsuta tracks are electrified.
- May 3 1962 : The Mitakeshima Rail Crash occurs between Mitake and Minami-Senju when an Iwaki-bound passenger train crashes into the wreckage of a crash between an Ueno-bound passenger train and an Ueno-bound freight train. 160 people die and 296 are injured in the incident.
- October 1 1962 : Katsuta — Takahagi tracks are electrified.
- May 1 1963 : Takahagi — Taira tracks are electrified.
- April 20 1963 : Takahira signal box is built between Haranomachi and Kashima.
- September 30 1963 : Taira — Kusano tracks are electrified.
- March 5 1966 : "Tokiwa" semi-express becomes an express.
- February 1 1967 : Kōen-Shimo Station is renamed Kairakuen Station.
- August 20 1967 : With the electrification of the Kusano — Iwanuma tracks, the entire Jōban Line becomes electrified.
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- October 1 1969 : Kairakuen Station becomes a temporary station. Seasonal "Hitachi" express begins operation.
- April 10 1970 : Freight line Kita-Kashiwa Station opens.
- October 1 1970 : "Hitachi" operates as a regular express.
- ). (The Chiyoda Line only ran as far as Kasumigaseki at the time). Tennōdai Station opens and Kita-Kashiwa Station is open to passengers.
- April 1 1973 : Shin-Matsudo Station opens.
- March 31 1978 : With the extension of its tracks to Yoyogi-Uehara Station, the Chiyoda Line shares tracks with the Odakyū Odawara Line up to Hon-Atsugi Station.
- November 15 1982 : Abiko — Toride becomes part of the Fukufuku Line.
- February 1 1984 : Mito — Nakagawa freight line is closed.
- March 14 1985 : Bampaku-Chūō Station is temporarily opened (until September 16) for the Tsukuba Expo '85. The Uchigō-System-ku is abolished. The "Tokiwa" express ceases operations.
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- August 2 1988 : Ōkuma signal box becomes Ōkuma Station.
- March 11 1989 : 651 series "Super Hitachi" limited-express EMUs enter service.
- February 1 1993 : Kanayama signal box is abolished.
- February 10 1993 : Takahira signal box is abolished.
- December 3 1994 : Taira Station is renamed Iwaki Station.
- October 1 1997 : E653 series "Fresh Hitachi" limited-express EMUs enter service.
- March 14 1998 : Hitachino-Ushiku Station opens where Bampaku-Chūō Station used to stand.
- December 7 1998 : 485 series "Hitachi" limited-express EMUs are retired.
- EMUs introduced on commuter services.
- March 13 2004 : Kawashiri Station is renamed Jūō Station. Regular trains begin making stops at Mikawashima and Minami-Senju Stations throughout the day.
- October 16 2004 : Medium-distance trains are called rapid trains.
- July 9 2005 : New E531 series dual-voltage EMUs enter service on suburban services.
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- March 2007 : Double-deck Green cars added to E531 series EMUs.
As the major half of the Jōban Line is the Ueno — Iwaki track, the other half (Iwaki — Sendai) is listed here:
Iwaki, Fukushima stations:
- Iwaki (いわき)
- Kusano (草野)
- Yotsukura (四ツ倉)
- Hisanohama (久ノ浜)
- Suetsugi (末続)
Hirono, Fukushima station:
Naraha, Fukushima stations:
Tomioka, Fukushima stations:
- Tomioka (富岡)
- Yonomori (夜ノ森)
Ōkuma, Fukushima station:
Futaba, Fukushima station:
Namie, Fukushima station:
Odaka, Fukushima stations:
Haramachi, Fukushima stations:
- Iwaki-Ōta (磐城太田)
- Haranomachi (原ノ町)
Kashima, Fukushima station:
Sōma, Fukushima stations:
Shinchi, Fukushima stations:
- Komagamine (駒ヶ嶺)
- Shinchi (駒ヶ嶺)
Yamamoto, Miyagi stations:
Watari, Miyagi stations:
Iwanuma, Miyagi station:
Natori, Miyagi stations:
Sendai, Miyagi stations:
(Taihaku-ku)
(Aoba-ku)
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