Yokohama Municipal Subway 4000 series

Japanese train type

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[update])
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[1]
Power output| 2.24 MW (3,004 hp)[1]
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

[edit]

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

[edit]

Longitudinal bucket seating is used throughout.[3]

* Interior of a 4000 series set

* Onboard LCD information screens

## Technical details

[edit]

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

[edit]

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

[edit]

Wikimedia Commons has media related to Yokohama Subway 4000 series.

1. ^ 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.
2. ^ 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.
3. ^ 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.
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.

## External links

[edit]

* Press release (in Japanese)

* v
* t
* e

Yokohama Municipal Subway rolling stock

Blue Line|

| Current|

* 3000 series
* 4000 series

|

Former|

* 1000 series
* 2000 series

Green Line|

| Current|

* 10000 series

|

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