TWR 71-000 series

Tokyo Waterfront Area Rapid Transit 71-000 series
A 71-000 series set in May 2025
In service2025–present
ManufacturerJ-TREC
Family nameSustina S24 Series
Replaced70-000 series
Entered service1 October 2025
Number under construction60 vehicles (6 sets)
Number built20 vehicles (2 sets)
Formation10 cars per trainset
Fleet numbersZ11–[1]
Capacity1544 (486 seated)
OperatorsTokyo Waterfront Area Rapid Transit
DepotsYashio
Lines served
Specifications
Car body constructionStainless steel
Car length20,000 mm (65 ft 7 in)
Width2,998 mm (9 ft 10.0 in)
Height4,016.5 mm (13 ft 2.13 in)
Floor height1,130 mm (3 ft 8 in)
Doors4 pairs per side
Maximum speed
  • 120 km/h (75 mph)
  • 100 km/h (62 mph) (Rinkai Line)
Traction systemIGBTVVVF[2]
Traction motorsThree-phase induction motor
Power output140 kW (190 hp)
Acceleration2.5 km/(h⋅s) (1.6 mph/s)
Deceleration5 km/(h⋅s) (3.1 mph/s)
Electric system(s)1,500 V DC (overhead catenary)
Current collectionPantograph
Bogies
  • TS-1050 (motored)
  • TS-1051[a] and TS-1051A (trailer)
Braking system(s)Regenerative brake
Safety system(s)ATS-P, ATC
Track gauge1,067 mm (3 ft 6 in)
Notes/references
Specifications:[3][4]

The Tokyo Waterfront Area Rapid Transit 71‑000 series (東京臨海高速鉄道71‑000形) is an electric multiple unit (EMU) commuter train type operated by the third-sector railway operator Tokyo Waterfront Area Rapid Transit (TWR) since 2025. A total of eight 10-car sets are to be built to replace the fleet of 70-000 series sets used on the Rinkai Line since its opening in 1996.[5]

Design

The 71‑000 series is built by Japan Transport Engineering Company (J-TREC) as part of its "Sustina S24 Series" family of 20-metre-long four-door cars.[4] The type uses a wide-body design to reduce congestion.[6]

Formation

Sets are based at Yashio Depot and are formed as follows with six motored ("M") cars and four non-powered trailer ("T") cars.[3]

 
← Shin-Kiba
Ōsaki, Ōmiya, Kawagoe →
 
 
 
Car No. 10 9 8 7 6 5 4 3 2 1
Designation Tc M1 M1' T2 M3 M3' T1 M2 M2' Tc'
Numbering 71-x10 71-x09 71-x08 71-x07 71-x06 71-x05 71-x04 71-x03 71-x02 71-x01
Weight (t) 31.1 32.3 33.1 29.1 32.2 30.2 29.4[b] 32.9 33.1 31.3
Capacity (total/seated) 140/39 158/51 158/51 158/51 158/51 158/51 158/51 158/51 158/51 140/39
  • Cars 6 and 9 have one pantograph, and car 3 has two.[3]
  • All cars have a wheelchair space.[4]

Interior

Passenger accommodation consists of longitudinal seating throughout.[2]

History

Details of the trains were announced by TWR in November 2023.[5] A total of eight 10-car sets are due to be in service by fiscal 2027.[7][8]

The first train was delivered from the J-TREC plant in Niitsu in November 2024.[9][10] Set Z12 followed suit in June 2025.[11]

The 71-000 series fleet entered service on the Rinkai, Saikyō and Kawagoe lines from 1 October 2025.[2]

Notes

  1. ^ End cars only
  2. ^ 29.7 t for cars with rail lubricating device

References

  1. ^ "にっこり笑顔のりんかい線新型車両「71ー000形」、本日10月1日営業運転デビュー!" [The smiling new Rinkai Line train, the "71-000 series", makes its commercial debut today, 1 October!]. RM News (in Japanese). Japan: Neko Publishing. 1 October 2025. Retrieved 1 October 2025.
  2. ^ a b c "JR埼京線へ直通、りんかい線の新型車両71-000形 - 早速乗ってみた" [Direct connection to JR Saikyō Line, new Rinkai Line 71-000 series train - I tried it out right away]. Mynavi News (in Japanese). Japan. 6 October 2025. Retrieved 7 October 2025.
  3. ^ a b c "りんかい線の新型車両「71-000形」お披露目" [The Rinkai Line's new train, the "71-000 series", is unveiled]. Tetsudo Shimbun (in Japanese). Japan. 1 July 2025. Retrieved 1 July 2025.
  4. ^ a b c "りんかい線の新型車両71-000形を公開! 今秋デビューへ - 写真81枚" [The Rinkai Line's new 71-000 series train is unveiled! Set to debut this fall]. Mynavi News (in Japanese). Japan. 1 July 2025. Retrieved 1 July 2025.
  5. ^ a b 東京臨海高速鉄道,りんかい線に71-000形を導入へ [Tokyo Waterfront Railway to introduce 71-000 series trains on the Rinkai Line]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha. 6 November 2023. Archived from the original on 6 November 2023. Retrieved 6 November 2023.
  6. ^ りんかい線、新型車両71-000形を順次導入 - 製造は総合車両製作所 [New 71-000 series trains to be introduced on the Rinkai Line, manufactured by Japan Transport Engineering Company]. Mynavi News (in Japanese). 6 November 2023. Retrieved 24 March 2025.
  7. ^ "りんかい線に新型車両 71-000 形を導入します" (PDF). Tokyo Waterfront Area Rapid Transit (in Japanese). 6 November 2023. Retrieved 5 December 2024.
  8. ^ "りんかい線「30年ぶりの新車」ついに公開! ベースになった車両とは? 既存の車両は「新天地」へ" [Rinkai Line's first new train in 30 years finally unveiled! What is the base train? Existing trains head to "new ground"]. Traffic News (in Japanese). Japan: Mediavague Co., Ltd. 1 July 2025. Retrieved 1 July 2025.
  9. ^ りんかい線の新型車両71-000形「はじめまして」運転台にりんかるも [Rinkai Line's new 71-000 series train with Rinkaru in the driver's cab]. Mynavi News (in Japanese). 21 November 2024. Retrieved 22 November 2024.
  10. ^ 東京臨海高速鉄道71-000形が甲種輸送される [TWR 71-000 series train delivered]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha. 22 November 2024. Retrieved 22 November 2024.
  11. ^ "東京臨海鉄道71-000形Z12編成が甲種輸送される" [Tokyo Waterfront Railway 71-000 series set Z12 transported]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 6 June 2025. Retrieved 6 June 2025.