Tokyu 2020 series

The Tokyu 2020 series (東急2020系, Tōkyū 2020-kei) is an electric multiple unit (EMU) commuter train type used by the private railway operator Tokyu Corporation in Japan on the Tokyu Den-en-toshi Line in the Tokyo area since March 2018.[1]

Tokyu 2020 series
The first set 2021 in October 2018
In service	March 2018 – Present
Manufacturer	J-TREC
Built at	Yokohama/Niitsu
Family name	Sustina S24 series
Replaced	2000 series, 8500 series, 8590 series
Constructed	2017 –
Entered service	28 March 2018
Number built	220 vehicles (22 sets) (as of 9 January 2021)
Number in service	80 vehicles (8 sets)
Formation	10 cars per trainset
Operator(s)	Tokyu Corporation
Depot(s)	Nagatsuta
Line(s) served	Tokyu Den-en-toshi Line, Tokyo Metro Hanzomon Line, Tobu Skytree Line
Specifications
Car body construction	Stainless steel
Car length	20,000 mm (65 ft 7 ^3⁄8 in) (intermediate cars) 20,470 mm (67 ft 2 in) (end cars
Width	2,788 mm (9 ft 1 ^3⁄4 in)
Height	4,046 mm (13 ft 3 ^1⁄4 in) (not including pantograph)
Floor height	1,130 mm (3 ft 8 ^1⁄2 in)
Doors	4 pairs per side
Maximum speed	110 km/h (70 mph) (Design speed)
Traction system	Variable frequency (SiC)
Acceleration	3.3 km/(h⋅s) (2.1 mph/s)
Deceleration	4.0 km/(h⋅s) (2.5 mph/s) (service brake) 4.5 km/(h⋅s) (2.8 mph/s) (emergency brake)
Electric system(s)	1,500 V DC Overhead catenary
Current collection method	Pantograph
Bogies	TS-1041 (motored), TS-1042 (trailer)
Track gauge	1,067 mm (3 ft 6 in)

The second set, 2122, in May 2018

Design

The 2020 series trains were built by Japan Transport Engineering Company (J-TREC) as part of its "Sustina S24 Series" family of 20-metre long four-door stainless steel cars.[2] The styling of the trains was overseen by Tanseisha, a company involved in designing commercial buildings along the Tokyu route.[1]

The classification "2020 series" for the trains was chosen to mark the year 2020 in which the Tokyo Olympics are to be held and in which Tokyu celebrates its 100th anniversary.[1]

Interior

Passenger accommodation consists of high-back longitudinal seats.[1] In addition to passenger information screens placed above the doorways and car ends, LCD screens are also located above the seats.[1] Security cameras are installed in the cars.[1]

2020 series interior

Formation

The trains are formed as follows, with five motored ("M") cars and five non-powered trailer ("T") cars, and car 1 at the Shibuya end.[3]

Car No.	1	2	3	4	5	6	7	8	9	10
Designation	Tc2	M2	M1	T3	T2	M3	T1	M2	M1	Tc1
Numbering	212x	222x	232x	242x	252x	262x	272x	282x	292x	202x
Weight (t)	31.5	33.5	33.5	27.8	27.5	32.0	27.5	33.5	33.5	31.4
Capacity (Total/seated)	143/45	155/48	155/51	155/51	155/51	155/51	155/51	155/51	155/51	143/45

Cars 3 and 9 each have two single-arm pantographs, and car 6 has one.[3]

History

The first set, 2121, on delivery in November 2017

Details of the new trains were officially announced on 17 March 2017.[1] Three ten-car sets (30 vehicles) are scheduled to be delivered during fiscal 2017, entering service in spring 2018,[3] with further sets introduced over the following years.[1] The first trainset, 2121, was delivered from the J-TREC factory in Yokohama in late November 2017, and shown off to the media on 30 November 2017.[4] The second trainset, 2122, was delivered from the J-TREC factory in Niitsu, Niigata, in February 2018.[5]

The first sets entered service on 28 March 2018.[6]

Build histories

The manufacturers and delivery dates for the fleet are as shown below.

Set No.	Manufacturer	Date delivered
2121	J-TREC, Yokohama	November 2017[4]
2122	J-TREC, Niitsu	February 2018[5]
2123	J-TREC, Niitsu	February 2018[7]
2124	J-TREC, Niitsu	June 6, 2018[8]
2125	J-TREC, Niitsu	June 27, 2018[8]
2126	J-TREC, Niitsu	October 30, 2018[8]
2127	J-TREC, Niitsu	December 5, 2018[8]
2128	J-TREC, Niitsu	March 6, 2019[8]
2129	J-TREC, Niitsu	March 27, 2019[8]
2130	J-TREC, Niitsu	August 21, 2019[8]
2131	J-TREC, Yokohama	October 31, 2019[8]
2132	J-TREC, Niitsu	January 17, 2020[8]
2133	J-TREC, Niitsu	February 14, 2020[8]
2134	J-TREC, Niitsu	March 4, 2020[8]
2135	J-TREC, Niitsu	March 25, 2020[8]
2136	J-TREC, Niitsu	April 15, 2020[8]
2137	J-TREC, Niitsu	May 13, 2020[8]
2138	J-TREC, Yokohama	September 17, 2020[8]
2139	J-TREC, Niitsu	August 6, 2020[8]
2140	J-TREC, Niitsu	September 2, 2020[8]
2141	J-TREC, Niitsu	December 9, 2020[8]
2142	J-TREC, Niitsu	January 7, 2021[8]

References

1. Ueshin, Daisuke (17 March 2017). 東急田園都市線2020系、新型車両は「これまでにない新しさ」2018年春導入へ [New Tokyu Denentoshi Line 2020 series trains to be introduced in spring 2018]. Mynavi News (in Japanese). Japan. Archived from the original on 19 March 2017. Retrieved 19 March 2017.
2. 総合車両製作所、東急2020系製造を担当 『sustina S24シリーズ』 [J-TREC to be in charge of Tokyu 2020 series manufacture - "Sustina S24 Series"]. Tetsudo Shimbun (in Japanese). Japan. 22 March 2017. Archived from the original on 22 March 2017. Retrieved 22 March 2017.
3. 東急2020系 [Tokyu 2020 series]. Japan Railfan Magazine (in Japanese). Vol. 58 no. 683. Japan: Koyusha Co., Ltd. March 2018. p. 72–73.
4. 東急，2020系を公開 [Tokyu 2020 series shown off]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 30 November 2017. Archived from the original on 30 November 2017. Retrieved 30 November 2017.
5. 新津製の東急2020系が甲種輸送される [Niitsu-built Tokyu 2020 series delivered]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 7 February 2018. Archived from the original on 9 February 2018. Retrieved 9 February 2018.
6. 東急2020系・6020系、新型車両3/28デビューへ - 特別列車も登場 [Tokyu 2020 and 6020 series to enter service on 28 March with a special service]. Mynavi News (in Japanese). Japan: Mynavi Corporation. 24 March 2018. Archived from the original on 27 March 2018. Retrieved 27 March 2018.
7. 東急2020系第3編成が甲種輸送される [Third Tokyu 2020 series delivered]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 21 February 2018. Archived from the original on 21 February 2018. Retrieved 21 February 2018.
8. "東急2020系編成表（最新版）" (in Japanese). Japan. Retrieved 7 January 2021.

External links

• Official news release (in Japanese)