During the public naming campaign conducted by JR East in June 2018, the following names were suggested for the station :
Higashi-Sengakuji Station – the station is east of Sengakuji Station
JR Sengakuji Station – to distinguish it from the existing station of the same name on Toei Asakusa Line
Kōnan Station – the station is located in the Kōnan district, southern Minato ward
Kōnan-Takanawa Station
Minami-Minato/Nankō Station
Minami-Kōnan Station
Nishi-Kōnan Station
Nishi-Shibaura Station
Olympics 2020 Station
Shibaura Station – the Shibaura district is north of Kōnan
Shin-Kita-Shinagawa Station – the new station is north of Shinagawa Station
Shin-Shinagawa Station
Takanawa Station – the Takanawa district is located west of Kōnan
Takanawa Ōkido Station – Takanawa Ōkido is a historical relic located next to Sengakuji Station
The results of the campaign concluded with the three top choices: Takanawa, Shibaura and Shibahama. However, Takanawa Gateway Station was selected as the official name of the station despite receiving an exceedingly low number of votes, placing 130th overall in popularity among all submissions with 36 votes. Yuji Fukasawa, president of JR East, has justified the naming with Takanawa's historical status of being a "gateway to Edo", while also serving as the site for the development of an international hub in the future. This choice has spurred criticism from several members of the public, citing the decision being made with a lack of consideration to the public's wishes. According to a poll conducted by the Japanese website j-town.net, 95.8% of respondents disapproved of the name "Takanawa Gateway", while a Change.org petition calling for a name change had gathered over 9,500 signatures as of 9 December 2018.
Lines
The station is served by the Yamanote Line, which circles around central Tokyo, and the Keihin-Tōhoku Line, which runs from Saitama through Tokyo to Yokohama. Formally, the station lies on the Tokaido Main Line. The station is within the Yamanote Line fare zone, and the Tokyo Metropolitan District fare zone.
Station layout
The station has two island platforms, serving the two lines stopping there. Above platform level, there will be an event space overlooking the platforms, with shopping and dining facilities inside the station.
Platforms
Takanawa Gateway Station has 4 tracks and 2 island platforms. Each platform equipped 3 escalators, 1 24-person elevator and 1 18-person elevator to the paid area of the concourse on the second floor.
Surrounding area
13 hectares of area in the Tamachi Depot will be repurposed and redeveloped, for an estimated cost of 500 billion Japanese yen. The Yamanote and Keihin-Tōhoku Line tracks will be moved east by 120 meters, such that office buildings, hotels, commercial buildings and high-rise skyscrapers can be built around the area, which is scheduled to open in 2024. JR East and the Urban Renaissance Agency are cooperating in this project.
History
On 3 June 2014, JR East announced that a new station will be built in between Tamachi and Shinagawa stations, at 1.3 km south from Tamachi Station, 0.9 km north from Shinagawa Station, and about 300 meters southeast of Sengakuji Station. The station was built above the existing Tamachi Depot, with 13 hectares of the Depot's space being repurposed and redeveloped. The station was planned to open in 2020, to meet with the Tokyo Olympics and Paralympics and is the newest station to be built since Nishi-Nippori Station for the Yamanote Line, and Saitama-Shintoshin Station for the Keihin-Tōhoku Line. On 6 September 2016, JR East announced the outline of this station and it was positioned as the core facility of Shinagawa Development Project "Global Gateway Shinagawa". On 10 February 2017, construction on the station began. From 5 to 30 June 2018, JR East publicly invited citizens to submit ideas of names for the new station, via mail or online submission. They announced that the finalized name of the station would be announced during winter 2018, while on 4 December 2018, the name was announced to be "Takanawa Gateway". The Yamanote and Keihin-Tōhoku Lines between Shinagawa and Tamachi were rerouted via the new station on 16 November 2019 during construction that suspended train service on the lines from the early morning until around 4:00 PM. The station opened on 14 March 2020, in time for the summer Olympics. However, it is believed that the shopping and dining facilities inside will not be fully completed until 2024.