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| Seibu Tamagawa Line | |
|---|---|
 | |
 A Seibu Tamagawa Line train | |
| Overview | |
| Native name | 西武多摩川線 |
| Owner | Seibu Railway |
| Line number | SW |
| Locale | Tokyo |
| Termini | |
| Stations | 6 |
| Service | |
| Type | Commuter rail |
| Rolling stock | New 101 series |
| History | |
| Opened | 22 October 1917; 108 years ago (22 October 1917) |
| Technical | |
| Line length | 8.0 km (5.0 mi) |
| Number of tracks | 1 |
| Track gauge | 1,067 mm (3 ft 6 in) |
| Minimum radius | 300 m |
| Electrification | 1,500 V DC, overhead catenary |
| Operating speed | 95 km/h (60 mph) |
TheSeibu Tamagawa Line (西武多摩川線,Seibu Tamagawa-sen) is an 8.0 km (5.0 mi) railway line in the western suburbs ofTokyo operated by the private railway operatorSeibu Railway. The line connectsMusashi-Sakai Station on theChūō Main Line withKoremasa Station along theTama River. The line has only six stations and is not connected to any other part of the Seibu Railway system. The only connection to any other rail line is a rarely used maintenance connection to theJR East Chūō Main Line (just west ofMusashi-Sakai Station) that is used to transfer trains requiring inspection or major repairs to Seibu's Musashigaoka Vehicle Inspection and Repair Shop.
The Seibu Tamagawa Line issingle-track: trains traveling in opposite directions pass each other as necessary at the stations, which aredouble-track. As of January 2025[update], during 12-minute frequency trains pass atShin-Koganei andShiraitodai, and during 20-minute frequency trains pass atShiraitodai only.
Although the line is short, it provides access to theTokyo University of Foreign Studies, theTokyo Racecourse, theAjinomoto Stadium, the Tokyo Metropolitan Police Department police school, many cemeteries (including Tokyo's largest,Tama Cemetery), theAmerican School in Japan, and the Tama River.
All services on the Seibu Tamagawa Line are Local trains, stopping at all stations.[1]
As of January 2025[update], trains operate every 12 minutes between 06:30 and 22:00 every day, and approximately every 20 minutes in the early morning and late at night.[2][3]
Running time is 12 minutes towards Koremasa and 14 minutes towards Musashi-Sakai.[2]
| No. | Station | Japanese | Distance (km) | Transfers | Location | Prefecture | |
|---|---|---|---|---|---|---|---|
| SW01 | Musashi-Sakai | 武蔵境 | 0.0 | JCChūō Line (Rapid)JC13 | ∨ | Musashino | Tokyo |
| SW02 | Shin-Koganei | 新小金井 | 1.9 | ◇ | Koganei | ||
| SW03 | Tama (Tokyo University of Foreign Studies) | 多磨 (東京外国語大学) | 4.1 | ｜ | Fuchū | ||
| SW04 | Shiraitodai | 白糸台 | 5.5 |  Keio Line (Musashinodai ,Tama-reien )‡ | ◇ | ||
| SW05 | Kyōteijō-mae | 競艇場前 | 7.0 | ｜ | |||
| SW06 | Koremasa | 是政 | 8.0 | ｜ |
‡Unofficial transfer station. Both Keio Line stations are 600 m (2,000 ft), approximately 8 minute walk from Shiraitodai Station.
Since March 2010, the line's services are operated exclusively by a fleet of 4 x 4-carNew 101 Series trains. These trains are wrapped with different liveries on various occasions. At other times the New 101 Series trains typically operate in a white livery.
The train depot for the Tamagawa Line trains is adjacent to Shiraitodai Station.
To commemorate the 100th anniversary of the opening of the Tamagawa Line from 2017 to 2018, which coincided with the 100th anniversary of the Izu Hakone Railway, the two lines celebrated by adopting each other's liveries.
By request from a questionnaire at the 100th-anniversary event of the Tamagawa Line, from January 24, 2018, Seibu Railway's old livery "Akaden Paint" (red x beige) was used.
From April 18, 2018, the trains were repainted with the two-tone color of yellow & beige. The paint color is derived from the livery that was used during the time of the debut of the New 101 series train. The livery was also used before the fleet renewal of 2010, as the Old 101 Series train was featured in the same livery. This livery was the most requested after Akaden painting in the questionnaire at the 100th-anniversary event of Tamagawa Line.
From July 11, 2018, To commemorate the 120th anniversary of theOhmi Railway and the 100th anniversary of the Tamagawa Line a wrapping featuring the "Mizuumifugo" (light blue) livery was introduced.
Before theNew 101 series, the line's services were operated by theOld 101 series (also referred to asOriginal 101 series), which were in use from 1996 to 2010. These trains originally were introduced as "One-Man" (ワンマン) services. Prior to the One-Man train service on the New 101 Series, the following trains were also used:401 series &Seibu 701 series [ja], which had been transferred from the Shinjuku line system to the Tamagawa line, and theSeibu 451 series [ja],Seibu 551 series [ja], &Seibu 571 series [ja], which were called Akaden trains due to their red and beige livery.
The first section of the line, between Musashi-Sakai and Kita-Tama Station (present-day Shiraitodai Station), opened on 22 October 1917.[4] The line was extended to Koremasa on 20 June 1922.[4] In 1927, the company was absorbed by theSeibu Railway.[citation needed] The entire line was electrified in 1950. Freight operations ceased in 1967.[citation needed]
This article incorporates material from the corresponding article in the Japanese Wikipedia.
 Seibu railway lines | |
|---|---|
| Ikebukuro Line group | |
| Shinjuku Line group | |
| People mover | |
| Related lines | |
| Major stations | |
| Shinkansen | |
|---|---|
 JR East linespassing through Central Tokyo | |
| JR East lines in satellite cities or suburbs | |
 Tokyo Metro | |
 Toei Subway | |
 Yokohama Municipal Subway | |
 Keikyu | |
 Keio | |
 Keisei | |
 Odakyu | |
 Seibu | |
 Sotetsu | |
 Tobu | |
 Tokyu | |
| Other heavy rail lines | |
| Medium-capacity rails | |
| Monorails | |
| Trams and light rails | |
| People movers | |
| Hinterland | |
| Funiculars and aerial lifts | |
 Bus | |
| Public ferries | |
| Major terminals | |
| Miscellaneous | |
35°40′56″N139°31′10″E / 35.68212°N 139.51950°E /35.68212; 139.51950
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