Tobu 70000 series

Tobu 70000 series

The first set, 71701, on delivery in February 2017
Manufacturer Kinki Sharyo
Replaced 20000 series
Constructed 2017-
Entered service 7 July 2017
Number built 21 vehicles (3 sets)
Formation 7 cars per trainset
Operator(s) Tobu Railway
Line(s) served
Specifications
Car length 20 m (65 ft 7 in)
Doors 4 pairs per side
Traction system Variable frequency (PMSM)
Electric system(s) 1,500 V DC overhead line
Track gauge 1,067 mm (3 ft 6 in)

The Tobu 70000 series (東武70000系, Tōbu 70000-kei) is a Japanese DC commuter electric multiple unit (EMU) train type operated by the private railway operator Tobu Railway on Tobu Skytree Line and Tokyo Metro Hibiya Line inter-running services since 7 July 2017.

Overview

The 70000 series trains are scheduled to replace the 20000 series EMUs used on Tobu Skytree Line and Tokyo Metro Hibiya Line inter-running services.[1] The new trains have 20 m long cars instead of the 18 m long cars of the 20000 series, and a unified door arrangement with four pairs per side instead of the mixture of three and five pairs per side on the 20000 series trains.[1] This will allow the installation of platform edge doors on the Tokyo Metro Hibiya Line once the older train fleets have been replaced.[1] The trains use PMSM (permanent magnet synchronous motors), offering 25% energy savings compared to the motors used in earlier 20000 series trains.[2]

Formation

The 70000 series trains are formed as seven-car sets as shown below, with car 1 at the northern end.[3] Each car is motored, with only the outer axle on each bogie motored.[3]

Car No. 1 2 3 4 5 6 7
Designation Mc2 M1' M2' M3 M2 M1 Mc1
Numbering 777xx 767xx 757xx 747xx 737xx 727xx 717xx

Car 4 has two single-arm pantographs, and cars 2 and 6 each have one.[3]

Interior

Internally, the trains use LED lighting throughout. Three 17-inch LCD passenger information displays are provided above each doorway.[2] Seating consists of longitudinal bench seats throughout, with a seat width of 460 mm (18 in) per person (compared to 450 mm per person for the 20000 series).[2] Wheelchair spaces are provided at one end of each car.[2]

History

Tobu Railway announced its plans to introduce a new fleet of trains with 20 m long cars and four sets of doors per side on each car in April 2014, jointly with Tokyo Metro.[4] Details of the new 70000 series trains on order were officially announced on 17 June 2015, together with details of the Tokyo Metro 13000 series to be introduced around the same time.[2] The entire fleet of new trains is scheduled to be delivered between fiscal 2016 and fiscal 2019,[2] with the first set delivered from Kinki Sharyo in February 2017.[5]

The first trains entered revenue service on 7 July 2017.[6]

References

  1. 1 2 3 東武鉄道70000系 - 2017年7月7日、7両編成の日比谷線直通新型車両デビュー! [New Tobu 70000 series trains for Hibiya Line through services to debut on 7 July 2017]. Mynavi News (in Japanese). Japan: Mynavi Corporation. 22 June 2017. Archived from the original on 23 June 2017. Retrieved 23 June 2017.
  2. 1 2 3 4 5 6 東京メトロ13000系・東武70000系"日比谷線直通"新型車両の仕様が明らかに! [Tokyo Metro 13000 series and Tobu 70000 series - Details of new trains for Hibiya Line through services announced]. Mynavi News (in Japanese). Japan: Mynavi Corporation. 17 June 2015. Archived from the original on 15 September 2016. Retrieved 17 June 2015.
  3. 1 2 3 東武鉄道 70000系 [Tobu Railway 70000 series]. Japan Railfan Magazine (in Japanese). Vol. 57 no. 674. Japan: Koyusha Co., Ltd. June 2017. p. 68.
  4. ↑ Kurihara, Kageri (26 July 2014). 君は日比谷線の新型車両を知っているか 東京メトロと東武鉄道が2016年度から導入 [Do you know about the new trains for the Hibiya Line? To be introduced by Tokyo Metro and Tobu from 2016]. Toyo Keizai Online (in Japanese). Japan: Toyo Keizai Inc. Archived from the original on 23 September 2016. Retrieved 27 February 2017.
  5. ↑ 東武鉄道70000系第1編成が甲種輸送される [First Tobu Railway 70000 series set delivered]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 26 February 2017. Archived from the original on 26 February 2017. Retrieved 27 February 2017.
  6. ↑ 東武70000系が営業運転を開始 [Tobu 70000 series enters revenue service]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 8 July 2017. Archived from the original on 9 July 2017. Retrieved 9 July 2017.
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