Yokohama Municipal Subway 4000 series

Yokohama Municipal Subway 4000 series
Yokohama Municipal Subway 4000 series
	A 4000 series train at Nakamachidai Station
In service	2022–present
Manufacturer	Kawasaki Heavy Industries
Built at	Kōbe, Hyōgo
Replaced	3000A series
Constructed	2021–
Entered service	2 May 2022
Number under construction	42 carriages (7 sets)
Number built	6 carriages (1 set)
Number in service	6 carriages (1 set) (As of May 2022)
Formation	6-car sets; Tc1–M2–M3–M4–M5–Tc6
Capacity	766
Operators	Yokohama City Transportation Bureau
Depots	Kaminagaya
Lines served	Yokohama Municipal Subway Blue Line
Specifications
Car body construction	Stainless steel
Train length	109.08 m (357 ft 10 in)
Car length	18.54 m (60 ft 10 in) (Tc); 18 m (59 ft 1 in) (M);
Width	2.76 m (9 ft 1 in)
Height	3,575 mm (11 ft 8.7 in)
Doors	3 pairs per side
Wheel diameter	860 mm (34 in)
Wheelbase	2,100 mm (6 ft 11 in)
Maximum speed	90 km/h (56 mph) (design); 80 km/h (50 mph) (service);
Traction system	VVVF
Traction motors	16 × 140 kW (188 hp) 3-phase AC induction motor
Power output	2.24 MW (3,004 hp)
Acceleration	0.89 m/s2 (2.0 mph/s)
Deceleration	0.97 m/s2 (2.2 mph/s) (service); 1.25 m/s2 (2.8 mph/s) (emergency);
Electric system(s)	750 V DC third rail
Current collector(s)	Contact shoe
UIC classification	2′2′+Bo′Bo′+Bo′Bo′+Bo′Bo′+Bo′Bo′+2′2′
Bogies	SS162MB (powered), SS162TB (trailer)
Safety system(s)	ATC/ATO
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge

The Yokohama Municipal Subway 4000 series (横浜市交通局4000形) is a metro electric multiple unit (EMU) train type operated by the Yokohama City Transportation Bureau on the Yokohama Municipal Subway Blue Line in Japan since 2022.

Formation

The sets have four powered cars and two leading trailer cars, and are formed as follows.^[2]

	← Shōnandai Azamino →
Designation	Tc1	M2	M3	M4	M5	Tc6
Weight (t)	30.5	34.0	32.5	34.0	33.0	30.0
Capacity (total/seated)	121/39	131/45				121/39

Interior

Longitudinal bucket seating is used throughout.^[3]

Interior of a 4000 series set
Onboard LCD information screens

Technical details

Construction is of stainless steel.^[1] Cars are 18 metres (59 ft 1 in) long (leading cars are 54 centimetres (1 ft 9 in) longer^[2]), 2,760 millimetres (9 ft 1 in) wide,^[1] and approximately 3.5 metres (11 ft 6 in) tall.^[2] The trains use a VVVF traction control system that allows for full regenerative braking.^[1] The trains have a maximum design speed of 90 kilometres per hour (56 mph) but are limited to 80 km/h (50 mph) during operation.^[3]

History

On 13 December 2021, the Yokohama Municipal Subway announced that new trainsets would be purchased for the Blue Line, replacing the oldest 3000A series trainsets dating back to 1992.^[4]

The order was originally made in 2018 for a new batch of 3000V series trainsets but that plan was abandoned in favour of newer 4000 series cars.^[5]

As of 3 April 2022^[update], five trainsets (30 vehicles) are to be commissioned in 2022 while the remaining three sets (18 vehicles) will enter service in 2023.^[3]

The first trainset entered service on 2 May 2022.^[6]

References

^ ^a ^b ^c ^d ^e "Yokohama unveils Series 4000 metro trains". Railway Gazette International. 30 March 2022. Archived from the original on 1 April 2022. Retrieved 4 April 2022.
^ ^a ^b ^c "【お披露目レポ】横浜市営地下鉄ブルーラインの新型車両「4000形」" [Yokohama Municipal Subway Blue Line's new "4000 series" vehicle]. Tetsudo Shimbun (in Japanese). 30 March 2022. Archived from the original on 7 April 2022. Retrieved 4 April 2022.
^ ^a ^b ^c "横浜市営地下鉄ブルーライン新型車両4000形、主要諸元は? 写真65枚" [Yokohama Municipal Subway Blue Line new 4000 series, what are the main specifications? 65 photos]. Mynavi News (in Japanese). 3 April 2022. Archived from the original on 10 April 2022. Retrieved 3 May 2022.
^ "横浜市営地下鉄ブルーラインに4000形を導入" [Introduced 4000 series to Yokohama Municipal Subway Blue Line]. Japan Railfan Magazine Online (in Japanese). Archived from the original on 26 December 2021. Retrieved 3 May 2022.
^ "横浜市交通局向け地下鉄電車を受注" [Received an order for a subway train for the Yokohama City Transportation Bureau]. Kawasaki Online (in Japanese). 11 October 2018. Archived from the original on 21 July 2021. Retrieved 3 May 2022.
^ "横浜市営地下鉄ブルーライン「4000形」2022年5月2日運行開始" [Yokohama Municipal Subway Blue Line "4000 type" starts operation on May 2, 2022]. Hamakei Online. 2 May 2022. Archived from the original on 2 May 2022. Retrieved 3 May 2022.

External links

Press release (in Japanese)

[4000_railway_gazette-1] "Yokohama unveils Series 4000 metro trains". Railway Gazette International. 30 March 2022. Archived from the original on 1 April 2022. Retrieved 4 April 2022.

[yoko4000_tetsudo_shimbun2-2] "【お披露目レポ】横浜市営地下鉄ブルーラインの新型車両「4000形」" [Yokohama Municipal Subway Blue Line's new "4000 series" vehicle]. Tetsudo Shimbun (in Japanese). 30 March 2022. Archived from the original on 7 April 2022. Retrieved 4 April 2022.

[mynavi_4000-3] "横浜市営地下鉄ブルーライン新型車両4000形、主要諸元は? 写真65枚" [Yokohama Municipal Subway Blue Line new 4000 series, what are the main specifications? 65 photos]. Mynavi News (in Japanese). 3 April 2022. Archived from the original on 10 April 2022. Retrieved 3 May 2022.

[:0-4] "横浜市営地下鉄ブルーラインに4000形を導入" [Introduced 4000 series to Yokohama Municipal Subway Blue Line]. Japan Railfan Magazine Online (in Japanese). Archived from the original on 26 December 2021. Retrieved 3 May 2022.

[5] "横浜市交通局向け地下鉄電車を受注" [Received an order for a subway train for the Yokohama City Transportation Bureau]. Kawasaki Online (in Japanese). 11 October 2018. Archived from the original on 21 July 2021. Retrieved 3 May 2022.

[6] "横浜市営地下鉄ブルーライン「4000形」2022年5月2日運行開始" [Yokohama Municipal Subway Blue Line "4000 type" starts operation on May 2, 2022]. Hamakei Online. 2 May 2022. Archived from the original on 2 May 2022. Retrieved 3 May 2022.

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