TWR 70-000 series

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Tokyo Waterfront Area Rapid Transit 70-000 series
70-000 series set 7 Kawagoe Line 20140511.jpg
A TWR 70-000 series EMU on the Kawagoe Line, May 2014
In service 1996–Present
Manufacturer Kawasaki Heavy Industries
Number in service 80 vehicles (8 sets)
Formation 10 cars per trainset
Fleet numbers Z1–8
Operator(s) Tokyo Waterfront Area Rapid Transit
Depot(s) Yashio Depot
Line(s) served Rinkai Line, Saikyo Line, Kawagoe Line
Car body construction Stainless steel
Car length 20 m (65 ft 7 in)
Doors Sliding, 4 pairs per side
Maximum speed 110 km/h (70 mph)
Electric system(s) 1,500 V DC overhead
Safety system(s) ATS-P, ATC
Track gauge 1,067 mm (3 ft 6 in)

The Tokyo Waterfront Area Rapid Transit 70-000 series (東京臨海高速鉄道70-000形?) is a DC commuter electric multiple unit (EMU) train type operated in the Tokyo area of Japan by the Tokyo Waterfront Area Rapid Transit. The train was built by Kawasaki Heavy Industries and first entered revenue service in 1996. Its design is based on the 209 series.


As of 1 April 2011, eight 10-car sets, numbered Z1 to Z8, are based at Yashio Depot in Tokyo (accessed via a spur located between Tennōzu Isle Station and Tokyo Teleport Station). The sets are formed as shown below, with car 1 at the Ōsaki end and car 10 at the Shin-kiba end. Trains consist of six motored "M" cars and four trailer "T" cars.[1]

Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tc2B M2A M1A T2A M2B M1A T2A M2A M1A Tc2A
Numbering 70-xx9 70-xx8 70-xx7 70-xx6 70-xx5 70-xx4 70-xx3 70-xx2 70-xx1 70-xx0

Cars 3, 6, and 9 are each fitted with one lozenge-type pantograph.[1]


6-car 70-000 series set in December 2002

The trains were originally formed as 4-car (lengthened to 6 cars from 2002) sets for use on the Rinkai Line only, but 10-car formations were also delivered from 2002 for use on through services to/from the JR Saikyō Line. From October 2004, the fleet was reformed entirely as 10-car trains, with six surplus cars sold to JR East to create 209-3100 series EMUs used on the Kawagoe Line.[2]

209-3100 series conversions[edit]

JR East 209-3100 series set 71, April 2005

Six former 70-000 series cars were converted in 2004 and 2005 to become 209-3100 series EMUs for use by JR East. The subsequent identities of these cars are as shown below. (The former car numbers were reused when other spare cars were renumbered.)[2]

Former car number New car number New set number Date returned to traffic
70-020 KuHa 209-3101 71 14 March 2005
70-027 MoHa 209-3102 72 16 December 2004
70-028 MoHa 208-3102 72 16 December 2004
70-029 KuHa 208-3101 71 14 March 2005
70-030 KuHa 209-3102 72 16 December 2004
70-039 KuHa 209-3102 72 16 December 2004


  • "東京臨海高速鉄道70-000形" [TWR 70-000 series]. Japan Railfan Magazine. No. 418. Japan: Kōyūsha Co., Ltd. February 1996. p. 68. 
  1. ^ a b 私鉄車両編成表 2011 [Private Railway Rolling Stock Formations - 2011]. Japan: Kotsu Shimbunsha. July 2011. p. 81. ISBN 978-4-330-22711-5. 
  2. ^ a b JR電車編成表 2012夏 [JR EMU Formations - Summer 2012]. Japan: Kotsu Shimbunsha. May 2012. p. 67. ISBN 978-4-330-28612-9. 

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