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| Hachikō Line | |||
|---|---|---|---|
| |||
| Overview | |||
| Native name | 八高線 | ||
| Status | In operation | ||
| Owner |  JR East | ||
| Locale | Tokyo Metropolis, Saitama Prefecture, Gunma Prefecture | ||
| Termini |
| ||
| Stations | 23 | ||
| Service | |||
| Type | Heavy rail | ||
| Operator(s) | JR East | ||
| Rolling stock | 209-3500 series EMU, E231-3000 series EMU, KiHa 110 series DMU | ||
| History | |||
| Opened | 1931 | ||
| Technical | |||
| Line length | 92.0 km (57.2 mi) | ||
| Number of tracks | Single-track (Hachiōji – Kita-Fujioka) Double-track shared with Takasaki Line (Kita-Fujioka – Kuragano) | ||
| Character | Urban in some areas and rural in others | ||
| Track gauge | 1,067 mm (3 ft 6 in) | ||
| Electrification | 1,500 V DC overhead catenary (Hachiōji – Komagawa) None (Komagawa – Kuragano) | ||
| Operating speed | 85 km/h (53 mph) (Hachiōji – Kita-Fujioka) 100 km/h (62 mph) (Kita-Fujioka – Kuragano) | ||
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The Hachikō Line is a 92.0 km (57.2 mi) regional railway line owned and operated by East Japan Railway Company (JR East). It is located within Tokyo, Saitama, and Gunma Prefectures in Japan. It connects Hachiōji StationinHachiōji, Tokyo with Kuragano StationinTakasaki, Gunma Prefecture.
Komagawa StationinHidaka, Saitama is the boundary point between two distinct sections. The southern section from Hachiōji to Komagawa is electrified at 1,500 V DC. Some trains terminate at Komagawa, while others continue over the Kawagoe LinetoKawagoe Station.
The non-electrified northern section connects Komagawa with Kuragano. All trains continue on the Takasaki LinetoTakasaki, where transfer to the Jōetsu Shinkansen is available. There are no through services connecting the southern and northern halves of the line.
The Hachikō Line takes the first kanji of its name from the first character of Hachiōji (八王子) and the second kanji from the first character of Takasaki (高崎).
| Station | Japanese | Distance (km) | Transfers | Track | Location | ||
|---|---|---|---|---|---|---|---|
| Between stations |
Total | ||||||
| Hachiōji | 八王子 | - | 0.0 |
 Keiō Line (Keiō-Hachiōji) |
o | Hachiōji | Tokyo |
| Kita-Hachiōji | 北八王子 | 3.1 | 3.1 | o | |||
| Komiya | 小宮 | 2.0 | 5.1 | o | |||
| Haijima | 拝島 | 4.8 | 9.9 |
 Seibu Haijima Line |
o | Akishima | |
| Higashi-Fussa | 東福生 | 2.8 | 12.7 | o | Fussa | ||
| Hakonegasaki | 箱根ヶ崎 | 3.0 | 15.7 | o | Mizuho, Nishitama District | ||
| Kaneko | 金子 | 4.8 | 20.5 | o | Iruma | Saitama | |
| Higashi-Hannō | 東飯能 | 5.1 | 25.6 |  Seibu Ikebukuro Line
|
o | Hannō | |
| Komagawa | 高麗川 | 5.5 | 31.1 | ■ Kawagoe Line (through to Kawagoe) ■ Hachikō Line (for Takasaki) |
o | Hidaka | |
| Station | Japanese | Distance (km) | Transfers | Track | Location | ||
|---|---|---|---|---|---|---|---|
| Between stations |
Total | ||||||
| Komagawa | 高麗川 | 5.5 | 31.1 | ■ Kawagoe Line ■ Hachikō Line (for Hachiōji) |
o | Hidaka | Saitama |
| Moro | 毛呂 | 5.8 | 36.9 | o | Moroyama, Iruma District | ||
| Ogose | 越生 | 2.7 | 39.6 |  Tobu Ogose Line
|
| | Ogose, Iruma District | |
| Myōkaku | 明覚 | 5.2 | 44.8 | o | Tokigawa, Hiki District | ||
| Ogawamachi | 小川町 | 8.0 | 52.8 | Tobu Tojo Line
|
o | Ogawa, Hiki District | |
| Takezawa | 竹沢 | 3.5 | 56.3 | | | |||
| Orihara | 折原 | 4.0 | 60.3 | | | Yorii, Ōsato District | ||
| Yorii | 寄居 | 3.6 | 63.9 | Tobu Tojo Line ■ Chichibu Main Line |
o | ||
| Yōdo | 用土 | 4.5 | 68.4 | | | |||
| Matsuhisa | 松久 | 2.7 | 71.1 | | | Misato, Kodama District | ||
| Kodama | 児玉 | 4.8 | 75.9 | o | Honjō | ||
| Tanshō | 丹荘 | 4.1 | 80.0 | o | Kamikawa, Kodama District | ||
| Gunma-Fujioka | 群馬藤岡 | 4.7 | 84.7 | o | Fujioka | Gunma | |
| Kita-Fujioka | 北藤岡 | 3.7 | 88.4 | ^ | |||
| Kuragano | 倉賀野 | 3.6 | 92.0 | ■ Takasaki Line (for Tokyo) | ∥ | Takasaki | |
| Through to Takasaki on the Takasaki Line | |||||||
| Takasaki | 高崎 | 4.4 | 96.4 |  Joetsu Shinkansen Hokuriku Shinkansen■ Shinetsu Main Line ■ Joetsu Line ■ Ryōmō Line ■ Agatsuma Line ■ Jōshin Dentetsu Jōshin Line |
∥ | Takasaki | Gunma |
From 2017, former E231-0 series ten-car sets based at Mitaka Depot for use on Chūō–Sōbu Line services were reformed and converted to become four-car E231-3000 series sets based at Kawagoe for use on Kawagoe Line and Hachiko Line services.[2] The first set entered revenue service on the line on 19 February 2018.[3]
From 2018, former 209-500 series ten-car sets based at Mitaka Depot for use on Chūō–Sōbu Line services were reformed and converted to become four-car 209-3500 series sets based at Kawagoe for use on Kawagoe Line and Hachiko Line services.[4]
The first section of the line, named the Hachikō North Line (Japanese: 八高北線, Hepburn: Hachikō-kita-sen), opened from Kuragano to Kodama on 1 July 1931, followed by the section from Hachioji to Higashi-Hanno, named the Hachikō South Line (Japanese: 八高南線, Hepburn: Hachikō-minami-sen), on 10 December 1931.[1] The Hachiko North Line was extended southward from Kodama to Yorii on 25 January 1933, and the Hachiko South Line was extended northward from Higashi-Hanno to Ogose on 15 April 1933.[1] The Hachiko South Line was further extended northward from Ogose to Ogawamachi on 24 March 1934, and the last section between Ogawamachi and Yorii opened on 6 October 1934, connecting the north and south sections, and completing the entire line, which became known simply as the Hachiko Line.[1]
All passenger operations were switch from steam haulage to electric trains from 20 November 1958.[1]
CTC signalling was commissioned over the entire line from 27 February 1985.[1] On 1 April 1987, with the privatization and splitting of Japanese National Railways (JNR), the Hachiko Line was transferred to the ownership of JR East.[1]
From 16 March 1996, the Hachioji to Komagawa section was electrified at 1,500 V DC, and services on the non-electrified section north of Komagawa to and from Takasaki were operated separately as one-man driver only operation services using KiHa 110 series DMUs,[1][7] and the southern section began through service operations to the Kawagoe LinetoKawagoe Station. Also from the same date until 11 March 2022, some morning rush hour services left the Hachikō Line at Haijima Station and travel to Tokyo via the Ōme Line and Chūō Line; the reverse happened during the evening rush.
Starting 12 March 2022, the southern section from Hachiōji to Komagawa (and through services to the Kawagoe Line) began one-man driver only operation services using the existing 209-3500 and E231-3000 series EMUs.
In 1945, a head-on collision at the Tamagawa bridge resulted in 105 fatalities.[citation needed]
The Hachiko Line derailment in 1947 is Japan's worst rail accident since World War II in terms of fatalities.
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