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Tobu Daishi Line
An 8000 series train on the Daishi Line in May 2011
Native name東武大師線
OwnerTobu Railway
TypeCommuter rail
Rolling stockTobu 8000 series
Opened20 December 1931; 92 years ago (20 December 1931)
Line length1.0 km (0.62 mi)
Number of tracksSingle-track
Track gauge1,067 mm (3 ft 6 in)
Electrification1,500 V DC (overhead catenary)
Operating speed60 km/h (37 mph)
SignallingAutomatic closed block
Train protection systemTobu ATS
Route map

TS-13 Nishiarai
TS-51 Daishimae

The Tobu Daishi Line (東武大師線, Tōbu Daishi-sen) is a 1.0 km (0.62 mi) railway line in Adachi, Tokyo, Japan, owned and operated by the private railway operator Tobu Railway. It connects Nishiarai Station to Daishimae Station.[1]

As fare collection and ticket purchases are conducted at Nishiarai, excluding those with a commuter pass or special ticket, passengers are able to board the train from Daishimae without a valid ticket.


No. Name Japanese Distance (km) Connections Location
TS13 Nishiarai 西新井 0.0 TS Tobu Skytree Line Adachi, Tokyo
TS51 Daishimae 大師前 1.0


The line opened on December 20, 1931, as the Tobu Nishi-Ita Line from Nishiarai to Daishimae, with a total distance of 1.1 km. This line forms part of the proposed Tobu Nishi-Ita Line (東武西板線) which was never completed. The Tobu Nishi-Ita Line was intended to link the Tobu Isesaki Line and Tobu Tojo Line after the merger of Tobu Railways and Tojo Railways in 1920 to allow for efficient transfer of rolling stock, and to improve the service for residents along the line. The plan was to connect Nishiarai Station to Kami-Itabashi Station, hence the name Nishi-Ita Line.

There were multiple reasons for the cancelation of the line. The Great Kanto Earthquake occurred in 1923, which was between the time of applying for and granting of the railway license. As such priority was given to the restoration of existing lines. The Arakawa River flood drainage canal was still under construction which meant the design of the railway bridge could not be finalized. The issue of the high cost of constructing bridges over the Arakawa and Sumida Rivers. Problems arising from requests for rerouting from town officials in the proposed area, and the rapid urbanization of the area around the proposed route meant the line would have been very expensive to construct, and the probability of turning a profit was low. One year after the opening of the line in 1932, the construction plan between Shikahama to Kami-Itabashi was abandoned.[2] As for the construction between Daishimae to Shikihama, a proposal for the extension of the construction timeframe was submitted to the government but was rejected in June of 1937, and the railway license expired after.[3]

Operation was suspended from May 20, 1945. Operations resumed from May 21, 1947, with the line renamed Tobu Daishi Line.[citation needed]

On December 1, 1968, Daishimae station was relocated due to road extension, shortening the line by 100 m. On July 26, 1991, the track was elevated.[4]

Wanman driver-only operation started on March 19, 2003.[5]

From 17 March 2012, station numbering was introduced on all Tobu lines. Tobu Daishi Line stations were numbered prefixed with the letters "TS".[6]

As the plan for the Nishi-Ita Line was abandoned, rolling stock transfers between the Tobu Tojo Line and the Tobu Isesaki Line are conducted through the Chichibu Main Line.


  1. ^ Terada, Hirokazu (July 2002). データブック日本の私鉄 [Databook: Japan's Private Railways]. Japan: Neko Publishing. ISBN 4-87366-874-3.
  2. ^ 「『わが街・いまむかし 板橋区政50周年記念誌』板橋区、1982年 (Our city, from the past till now. The 50th Anniversary of Itabashi Ward Government, 1982)
  3. ^ 『東武鉄道六十五年史』東武鉄道、1964年 (Tobu Railway: A Sixty-Five Year History, 1964)
  4. ^ 東武大師線を高架化 [Elevation of Tobu Daishi Line]. Kotsu Shimbun. Kotsu Shimbunsha. 1991-07-16. p. 1.
  5. ^ "鉄道記録帳2003年3月". Rail Fan. 50 (6). 鉄道友の会: 18. 2003-06-01.
  6. ^ 「東武スカイツリーライン」誕生! あわせて駅ナンバリングを導入し、よりわかりやすくご案内します [Tojo Sky Tree Line created! Station numbering to be introduced at same time] (PDF). Tobu News (in Japanese). Tobu Railway. 9 February 2012. Archived from the original (pdf) on 6 August 2012. Retrieved 20 April 2016.