The is an electric multiple unit (EMU) commuter train type operated by the

private railway A private railway is a railroad run by a private business entity (usually a corporation but not need be), as opposed to a railroad run by a public sector. Japan In Japan, , commonly simply ''private railway'', refers to a public transit railway o ...

operator

Keio Corporation () is a private railway operator in Tokyo, Japan, and the central firm of the that is involved in transport, retail, real estate and other industries. The name is derived from taking one character each from the places through which the railw ...

in the Tokyo area of Japan since 29 September 2017. A total of six ten-car trainsets were built by J-TREC. 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.

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. The interior features motifs inspired by the trees of Mount Takao. The train type was a recipient of the Good Design Award in 2017. File:TS-1018C型ボルスタレス台車.jpg, A 5000 series TS-1018CD trailer bogie File:京王5000系京王ライナー表示.jpg, External information display File:京王5000系京王ライナー表示英語版.jpg, External information display in English File:京王5000系電車運転台.jpg, Driver's cab

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. Cars 2, 3, 6, 8, and 9 each have one single-arm

pantograph A pantograph (, from their original use for copying writing) is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical movements in a second pen. If a line dr ...

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 . 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. File:Keio 5000 series-1.jpg, The interior with seats arranged in longitudinal configuration File:Keio 5000 series interior.jpg, The interior with seats arranged in transverse configuration File:Keio 5000 series interior 2 seat.jpg, Two-person rotating seat File:Keio 5000 series-electrical outlet 20180414.jpg, Electrical outlets File:Keio 5000 series interior 3 seat.jpg, Three-person seating at a car end File:Keio 5000 series-LCD 2.jpg, Ceiling-mounted LCD passenger information screens File:Keio 5000 series-LCD 3.jpg, Passenger door-mounted LCD passenger information screens File:Keio 5000 series-3.jpg, Internal doorway-mounted LCD passenger information screens

History

Details of the new trains were officially announced in March 2016. 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. The name ''Keio Liner'' was announced on 24 January 2018, chosen from the following five candidates. # # # # ''Luxpress'' # ''Westar'' The fleet of five ten-car 5000 series trainsets was built by

Japan Transport Engineering Company is a manufacturer of heavy rail cars in Japan, formerly known as . The company is based in Kanazawa-ku, Yokohama, and a member of East Japan Railway Company (JR East) group. J-TREC manufactures rail vehicles not only for JR East and Tokyu Corp ...

("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, and unveiled to the media on 19 July 2017. It entered revenue service on 29 September 2017. The fifth set was in service by January 2018. Reserved-seat ''Keio Liner'' services from Shinjuku Station commenced on 22 February 2018. Inbound ''Keio Liner'' trains to Shinjuku will begin on 22 February 2019. The order of a sixth set was announced in April 2019. The set was delivered in December 2019.

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

Build histories

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

References

External links

Official news release
{{Keio trainsets Electric multiple units of Japan 5002 series Train-related introductions in 2017 1500 V DC multiple units of Japan J-TREC multiple units