| Seibu Kokubunji Line | |
| Native Name: | 西武国分寺線 |
| Native Name Lang: | ja |
| Type: | Commuter rail |
| System: | Seibu Shinjuku |
| Locale: | Kanto region |
| Stations: | 5 |
| Routes: | 1 |
| Stock: | Seibu 2000 series |
| Tracks: | 1 (1.2 km double-tracked) |
| Electrification: | (overhead catenary) |
| Map State: | collapsed |
The is a railway line in Tokyo, Japan, operated by the private railway operator Seibu Railway.
The line is part of the Seibu Shinjuku group of railway lines and connects suburban areas of western Tokyo to Seibu and JR main lines that run to central Tokyo. The line passes through the cities of Higashimurayama, Kodaira, and Kokubunji.
The line was opened in 1894 as part of the Kawagoe Railway linking and . At this time, was the only intermediate station on the to Kokubunji section. In 1927, the Kawagoe railway was diverted at Higashi-Murayama to a new section of track to and so the Kokubunji line was formed from the orphaned section. The line was electrified in 1948. Two additional intermediate stations were later opened between Ogawa and Kokubunji: opened in 1948, and opened in 1955. Setting up of Hanesawa and track doubling from Koigakubo to Hanesawa was carried out in 1968. Since July 2008, recorded announcements on trains have been provided in English in addition to Japanese.
Through service onto the Seibu Shinjuku Line has been suspended since 19 March 2019 because of the reconstruction of Higashi-Murayama Station into an elevated station.[1]
| No. | Station | Distance (km) | Connections | Location | ||
|---|---|---|---|---|---|---|
| 国分寺 | 0.0 | Kokubunji | Tokyo | |||
| 恋ヶ窪 | 2.1 | |||||
| 鷹の台 | 3.6 | Kodaira | ||||
| 小川 | 5.1 | Seibu Haijima Line | ||||
| 東村山 | 7.8 | Seibu Shinjuku Line, Seibuen Line | Higashimurayama | |||
2000 series EMUs are used on this line. These trains are painted in Seibu Railway's distinctive yellow livery. All trains are local services and stop at all stations. Trains take 12 minutes to complete the journey.The line is mostly single track between and, but with double track sections at each station. Track between and is double track for the first and single track the last before Kokubunji station. The track changes from double to single at .[2] The double-track section allows 8 trains per hour to operate in each direction during peak. At Kokubunji Station, trains use only a single platform (platform 5) at the terminus.