Keio 5000 series (2017) explained

Keio 5000 series
Designer:	Kazuhiko Saito, Taro Shiono
Manufacturer:	J-TREC
Factory:	Yokohama
Family:	Sustina
Yearconstruction:	2017–Present
Yearservice:	29 September 2017
Numberconstruction:	20 vehicles (2 sets)
Numberbuilt:	80 vehicles (8 sets)
Numberservice:	80 vehicles (8 sets)
Formation:	10 cars per trainset
Fleetnumbers:	5731–
Operator:	Keio Corporation
Carbody:	Stainless steel
Width:	2800mm
Height:	4090mm
Doors:	4 pairs per side
Maxspeed:	130km/h (design)
Acceleration:	3.3km/h/s
Deceleration:	4km/h/s (service) 4.5km/h/s (emergency)
Traction:	Hitachi 2-level VVVF (SiC-IGBT hybrid module)
Traction Motors:	Hitachi totally enclosed 3-phase squirrel-cage induction motor
Poweroutput:	150 kW × 4 per motored car
Electricsystem:	1,500 V DC overhead catenary
Collectionmethod:	Single-arm pantograph
Bogies:	TS-1017C (motored) TS-1018CD (trailer)
Brakes:	Regenerative braking with electronically controlled pneumatic brakes

The is an electric multiple unit (EMU) commuter train type operated by the private railway operator Keio Corporation in the Tokyo area of Japan since 29 September 2017. A total of six ten-car trainsets were built by J-TREC.^[1] The trains feature rotating seats that can be arranged longitudinally for daytime services and in forward-facing transverse pairs for reserved-seat Keio Liner commuter services in the evenings which started on 22 February 2018.^[1]

Design

Designed by Kazuhiko Saito and Taro Shiono, the Keio 5000 series is designed to be used in a broad range of scenarios by pursuing high degrees of ride quality.^[2] The interior features motifs inspired by the trees of Mount Takao. The train type was a recipient of the Good Design Award in 2017.

Formation

The ten-car trains are formed as follows, with six motored ("M") cars and four non-powered trailer ("T") cars, and car 10 at the Shinjuku (eastern) end.^[3]

Car No.		1	2	3	4	5	6	7	8	9	10
Designation		KuHa 5750 (Tc2)	DeHa 5050 (M2")	DeHa 5000 (M1")	SaHa 5550 (T2)	DeHa 5050 (M2')	DeHa 5000 (M1')	SaHa 5500 (T1)	DeHa 5050 (M2)	DeHa 5000 (M1)	KuHa 5700 (Tc1)
Weight (t)		29.8	35.6	36.3	26.7	34.0	35.4	26.8	35.8	36.3	30.2
Capacity (total/seated)		119/39	130/45	130/45	130/45	130/45	130/45	130/45	130/45	130/45	119/39
		115/39	126/45	126/45	126/45	126/45	126/45	126/45	126/45	126/45	115/39
Numbering		5781 :	5281 :	5231 :	5581 :	5181 :	5131 :	5531 :	5081 :	5031 :	5731 :

Cars 2, 3, 6, 8, and 9 each have one single-arm pantograph.^[3]

Interior

Passenger accommodation consists of rotating pairs of seats that can be arranged in longitudinal configuration for regular daytime services or in transverse forward-facing configuration for reserved-seat evening commuter services from in Tokyo to and .^[4] LED lighting is used in the interiors, and pairs of LCD passenger information screens are provided both above the doorways and suspended from the ceilings. Free WiFi and AC power sockets are provided. Space for wheelchairs and pushchairs are provided in each car.

History

Details of the new trains were officially announced in March 2016.^[5] Between April and May 2017, Keio held a public poll to choose the brand name for the new reserved-seat services starting in spring 2018.^[1] The name Keio Liner was announced on 24 January 2018, chosen from the following five candidates.^[6]

1. 1. 1. 1. Luxpress
2. Westar

The fleet of five ten-car 5000 series trainsets was built by Japan Transport Engineering Company ("J-TREC") at a total cost of approximately JPY10 billion.

The first trainset was delivered to Wakabadai Depot from the J-TREC factory in Yokohama in late June 2017,^[7] and unveiled to the media on 19 July 2017.^[8] It entered revenue service on 29 September 2017.^[9] The fifth set was in service by January 2018.^[10]

Reserved-seat Keio Liner services from Shinjuku Station commenced on 22 February 2018.^[11] Inbound Keio Liner trains to Shinjuku will begin on 22 February 2019.^[12]

The order of a sixth set was announced in April 2019.^[13] The set was delivered in December 2019.^[14]

Future plans

Keio plans to upgrade the seats on the 5000 series to include a reclining function. The program aims to begin revenue operation later in 2022.^[15]

The updated seating was installed on a new 7th set. This new set, 5737, debuted on 24 December 2022.^[16]

On 10 May 2024, Keio announced that as part of its fiscal 2024 capital investment plan, two more 5000 series sets are scheduled to be delivered to boost the frequency of Keio Liner services.^[17]

Build histories

The manufacturers and delivery dates for the fleet are as shown below.^[18]

Set No.	Date delivered
5731	30 June 2017
5732	15 September 2017
5733	2017
5734
5735
5736	December 2019
5737
5738	January 2024^[19]

See also

• Seibu 40000 series, a Seibu Railway commuter EMU type that also features rotating longitudinal/transverse seating
• Tobu 50090 series and 70090 series, Tobu Railway commuter EMU types that also feature rotating longitudinal/transverse seating
• Keikyu N1000 series, a Keikyu commuter EMU type that features rotating transverse seating (batches 20 and 21 only)
• Kintetsu 5800 series, the first EMU commuter trains delivered with rotating longitudinal/transverse seating
• Kintetsu 5820 series, a similar type with changing seat configurations operating for Kintetsu Railway, the curators of the design

External links

• Official news release

Notes and References

1. Web site: http://news.mynavi.jp/news/2017/04/26/247/ . Daisuke . Ueshin . ja:京王電鉄5000系、新型車両9月デビュー! 有料座席指定列車の愛称投票も実施 . New Keio Corporation 5000 series trains to debut in September! Poll to be held for paid reserved-seat service name. 26 April 2017. Mynavi News . Japan. Japanese. https://web.archive.org/web/20170612020639/http://news.mynavi.jp/news/2017/04/26/247/ . 12 June 2017 . live . 12 June 2017.
2. Web site: MODEL 5000 Keio Corporation [MODEL 5000 Keio Corporation]]. 2021-11-23. Good Design Award.
3. ja: 京王電鉄5000系. Keio Corporation 5000 series . . 57. 679 . 52-57 . Koyusha Co., Ltd. . Japan . Japanese . November 2017.
4. Web site: 16 March 2016. ja: 京王電鉄の新型「５０００系」、新宿～八王子・橋本で座席指定列車運行. New Keio 5000 series trains to operate on reserved-seat services between Shinjuku and Hachioji/Hashimoto. http://www.sankeibiz.jp/business/news/160316/bsd1603161617011-n1.htm. live. SankeiBiz. Sankei Digital Inc.. Japan. Japanese. https://web.archive.org/web/20160519234018/http://www.sankeibiz.jp/business/news/160316/bsd1603161617011-n1.htm. 19 May 2016. 28 February 2017.
5. Web site: http://news.mynavi.jp/news/2016/03/16/380/ . Daisuke . Ueshin . ja: 京王電鉄5000系、座席指定列車の新型車両を50両導入 - 2018年春運行開始へ. Keio Corporation to introduce 50 5000 series vehicles for reserved-seat services starting in spring 2018. 16 March 2016. Mynavi News . Japan. Japanese. https://web.archive.org/web/20160318224139/http://news.mynavi.jp/news/2016/03/16/380 . 18 March 2016 . live . 28 February 2017.
6. Web site: http://www.sankei.com/economy/news/180124/ecn1801240029-n1.html . ja: 京王線の座席指定列車、愛称は「京王ライナー」 . Brand name "Keio Liner" chosen for Keio Line reserved-seat train . 24 January 2018 . Sankei News . The Sankei Shimbun & Sankei Digital . Japan. Japanese. https://web.archive.org/web/20180125015151/http://www.sankei.com/economy/news/180124/ecn1801240029-n1.html. 25 January 2018 . live . 26 February 2018.
7. Web site: http://rail.hobidas.com/rmn/archives/2017/06/5000_22.html . ja: 【京王】新5000系 若葉台検車区へ搬入 . Keio new 5000 series delivered to Wakabadai Depot . 30 June 2017 . Tetsudo Hobidas . Neko Publishing Co., Ltd. . Japan . Japanese . https://web.archive.org/web/20170630151638/http://rail.hobidas.com/rmn/archives/2017/06/5000_22.html . 30 June 2017 . live . 30 June 2017 .
8. Web site: http://railf.jp/news/2017/07/19/163000.html . ja: 京王5000系が公開される . Keio 5000 series shown off . 19 July 2017. Japan Railfan Magazine Online. Koyusha Co., Ltd.. Japan. Japanese. https://web.archive.org/web/20170719085432/http://railf.jp/news/2017/07/19/163000.html. 19 July 2017. live . 19 July 2017.
9. Web site: http://rail.hobidas.com/rmn/archives/2017/09/5000_25.html . ja: 京王5000系営業運転開始 . Keio 5000 series enters revenue service . 29 September 2017 . Tetsudo Hobidas . Neko Publishing Co., Ltd. . Japan. Japanese. https://web.archive.org/web/20170929074622/http://rail.hobidas.com/rmn/archives/2017/09/5000_25.html . 29 September 2017 . live . 29 September 2017 .
10. Web site: http://railf.jp/news/2018/01/07/202000.html . ja: 京王5000系第5編成が営業運転を開始 . Keio 5000 series 5th set enters revenue service . 7 January 2018. Japan Railfan Magazine Online. Koyusha Co., Ltd.. Japan. Japanese. https://web.archive.org/web/20180108062800/http://railf.jp/news/2018/01/07/202000.html . 8 January 2018. live . 9 January 2018.
11. Web site: https://railf.jp/news/2018/02/23/150000.html . ja: “京王ライナー”の運転開始 . "Keio Liner" services start . 23 February 2018. Japan Railfan Magazine Online. Koyusha Co., Ltd.. Japan. Japanese. https://web.archive.org/web/20180226025455/https://railf.jp/news/2018/02/23/150000.html . 26 February 2018 . live . 26 February 2018.
12. . 京王線・井の頭線のダイヤ改正を実施します. ja. Keio Corporation. 22 January 2019. 19 February 2019.
13. Web site: Ueshin . Daisuke . 京王電鉄5000系1編成増備「京王ライナー」さらなる運行拡大めざす . Keio Electric Railway 5000 series 1 set increase "Keio Liner", Aiming for further operation expansion . Japanese . April 26, 2019 . news.mynavi.jp . Mynavi Corporation . January 14, 2020 . https://archive.today/20200114111209/https://news.mynavi.jp/article/20190426-keio5000/ . 14 January 2020 . live .
14. Web site: 【京王】5000系5736編成の話題 . (Keio) 5000 series set 5736 topic . December 24, 2019 . rail.hobidas.com . Neko Publishing . Japanese . January 14, 2020 . https://archive.today/20200114105337/http://rail.hobidas.com/rmn/sp/archives/2019/12/50005736.html . 14 January 2020 . live .
15. Web site: 14 April 2021 . 京王、リクライニング機能付きのロング・クロス転換座席を2022年導入 . Keio Introduces Long Cross Convertible Seats with Reclining Function in 2022 . https://web.archive.org/web/20210518195227/https://www.tetsudo.com/news/2443/ . 18 May 2021 . 28 October 2022 . Tetsudo.com . ja.
16. Web site: 24 December 2022 . 京王電鉄5000系新造車両「初乗り体験会」座席にリクライニング機能 . New Keio 5000 Series Set Debuts with Updated Seating . https://web.archive.org/web/20221224104615/https://news.mynavi.jp/article/20221224-2545680/ . 24 December 2022 . 25 December 2022 . MyNavi Corporation . ja.
17. Web site: 京王，2024年度の設備投資計画を発表 . Keio announces capital investment plan for 2024 . Japan Railfan Magazine Online . Koyusha Co., Ltd. . 23 May 2024 . Japan . ja . 10 May 2024.
18. ja: 私鉄車両のうごき. Private railway rolling stock changes . Tetsudo Daiya Joho Magazine . 47. 405 . 104 . Kotsu Shimbun . Japan . Japanese . January 2018.
19. Web site: 京王5000系5738編成が営業運転を開始 . Keio 5000 series set 5738 begins commercial operation . Japan Railfan Magazine Online . Koyusha Co., Ltd. . 23 May 2024 . Japan . ja . 4 March 2024.