Tokyo Rinkai Subway Line

Tokyo Rinkai Subway Line
Tokyo Rinkai Subway Line
Overview
Native name	東京臨海地下鉄線
Status	Proposed
Locale	Tokyo Prefecture
Termini	Tokyo Station (tentative); Ariake-Big Sight Station (tentative);
Stations	7
Service
Type	Heavy rail
History
Planned opening	2040s (tentative)
Technical
Line length	6.1 km (3.8 mi)
Number of tracks	2
Track gauge	1,067 mm (3 ft 6 in)
Electrification	1,500 V DC, overhead lines

The Tokyo Rinkai Subway Line (東京臨海地下鉄線) is the tentative name for a planned underground heavy rail line which will run north-south between Tokyo Station and the Ariake district along Tokyo Bay. As of 25 November 2022, the projected completion date is in the 2040s.

Background

Plans to construct a new subway line connecting Tokyo Station to the Tokyo Bay area had been in discussion since 2015 as Tokyo was undergoing preparations to host the 2020 Summer Olympics.[1] However, on 25 November 2022, Tokyo governor Yuriko Koike revealed concrete plans to construct the subway line.[2] The line will be around 6.1 km (3.8 mi) long and will feature 7 stations.[3] Overall, the cost is expected to be ¥420−510 billion and is projected to open in the 2040s.[3] It is currently unintended to be built as a standalone subway line. Rather, there are plans to run through services with the Rinkai Line and the Tsukuba Express along with a possible integration with the JR Haneda Airport Access Line.[4] The rationale for building the line is due to the development of Tokyo Bay and the integration of leftover facilities from the 2020 Summer Olympics such as the athlete's village (which have since been remarketed as condominiums) and competitor venues.[2][5] In addition, the island on which the former athlete's village is located, Harumi, remains without a railway connection.[4]

Construction is projected to begin in the 2030s.[5] As of November 2022, the company in charge of construction has not been decided.

JR East

Upon completion of the line, JR East plans to build a connection from the Haneda Airport Access Line to the Tokyo Rinkai Subway Line.[6]

Rinkai Line

A connection to the Rinkai Line from the southern terminus at Ariake is also being considered.[6]

Tsukuba Express

A northern extension of the Rinkai Subway Line to connect to the Tsukuba Express at Akihabara Station was also discussed by the Tokyo Metropolitan Government.[6]

Harumi, the former Athlete's Village of the 2020 Summer Olympics

Stations

All station names are provisional.[2][3][6]

Station	Japanese	Transfers	Location
Tokyo	東京	Tohoku Shinkansen Joetsu Shinkansen Hokuriku Shinkansen JY Yamanote Line (JY01, Yūrakuchō: JY30) JK Keihin-Tōhoku Line (JK26, Yūrakuchō: JK25) JC Chūō Line (JC01) JE Keiyō Line (JE01) JT Tōkaidō Main Line (JT01) JU Ueno–Tokyo Line (JU01) JO Sōbu Line (Rapid) (JO19) JO Yokosuka Line (JO19) Tokaido Shinkansen M Tokyo Metro Marunouchi Line (M-17) C Tokyo Metro Chiyoda Line (Nijubashimae: C-10) I Toei Mita Line (Hibiya: I-08)	Chiyoda
Shin-Ginza	新銀座		Chūō
Shin Tsukiji	新築地
Kachidoki	勝どき	E Toei Ōedo Line (E-12)
Harumi	晴海
Toyosu Market	豊洲市場		Kōtō
Ariake / Tokyo Big Sight	有明・東京ビッグサイト	Yurikamome	Kōtō

References

"選手村予定地に地下鉄構想、五輪後の住宅整備見込む" [Subway concept planned for athletes' village, housing development expected after Olympics]. Nihon Keizai Shimbun Online (in Japanese). 12 June 2015. Archived from the original on 15 April 2019. Retrieved 26 November 2022.
"【独自】東京駅―勝どき―有明を結ぶ「臨海地下鉄」新線、全７駅新設…2040年代前半に開業へ" [New Rinkai Subway Line Connecting Tokyo Station, Kachidoki, and Ariake: 7 New Stations in Total, Projected to open in the First Half of the 2040s]. Yomiuri Shimbun Online (in Japanese). 24 November 2022. Archived from the original on 24 November 2022. Retrieved 26 November 2022.
"東京駅とビッグサイトを結ぶ地下鉄新線の事業計画案を発表、東京都" [Tokyo Metropolitan Government announces project plan for new subway line connecting Tokyo Station and Tokyo Big Sight]. tetsudo.com (in Japanese). 25 November 2022. Archived from the original on 25 November 2022. Retrieved 25 November 2022.
Sato, Masaki (25 November 2022). "東京都心-臨海地域の地下鉄、2040年までの開業を目指す…晴海の鉄道空白を解消へ" [Central Tokyo-Rinkai Subway Aims to Open by 2040 Providing Service to Harumi District]. Response Automotive Media (in Japanese). Archived from the original on 25 November 2022. Retrieved 26 November 2022.
Inaijima, Takeshi (24 November 2022). "東京都心と臨海地域結ぶ地下鉄新線が事業化へ、約5000億円－報道" [About 500 billion yen needed to commercialize a new subway line connecting central Tokyo and the coastal area]. Bloomberg Japan (in Japanese). Archived from the original on 24 November 2022. Retrieved 26 November 2022.
"東京都の臨海地下鉄「羽田空港接続」も検討へ事業計画案を公表、6km・7駅を整備" [Business Plan for the Tokyo's Rinkai Subway and Haneda Airport Connection: 6 Kilometers and 7 Stations]. news.railway-pressnet.com (in Japanese). 25 November 2022. Archived from the original on 25 November 2022. Retrieved 26 November 2022.

External links

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[1] "選手村予定地に地下鉄構想、五輪後の住宅整備見込む" [Subway concept planned for athletes' village, housing development expected after Olympics]. Nihon Keizai Shimbun Online (in Japanese). 12 June 2015. Archived from the original on 15 April 2019. Retrieved 26 November 2022.

[:0-2] "【独自】東京駅―勝どき―有明を結ぶ「臨海地下鉄」新線、全７駅新設…2040年代前半に開業へ" [New Rinkai Subway Line Connecting Tokyo Station, Kachidoki, and Ariake: 7 New Stations in Total, Projected to open in the First Half of the 2040s]. Yomiuri Shimbun Online (in Japanese). 24 November 2022. Archived from the original on 24 November 2022. Retrieved 26 November 2022.

[:2-3] "東京駅とビッグサイトを結ぶ地下鉄新線の事業計画案を発表、東京都" [Tokyo Metropolitan Government announces project plan for new subway line connecting Tokyo Station and Tokyo Big Sight]. tetsudo.com (in Japanese). 25 November 2022. Archived from the original on 25 November 2022. Retrieved 25 November 2022.

[:4-4] Sato, Masaki (25 November 2022). "東京都心-臨海地域の地下鉄、2040年までの開業を目指す…晴海の鉄道空白を解消へ" [Central Tokyo-Rinkai Subway Aims to Open by 2040 Providing Service to Harumi District]. Response Automotive Media (in Japanese). Archived from the original on 25 November 2022. Retrieved 26 November 2022.

[:3-5] Inaijima, Takeshi (24 November 2022). "東京都心と臨海地域結ぶ地下鉄新線が事業化へ、約5000億円－報道" [About 500 billion yen needed to commercialize a new subway line connecting central Tokyo and the coastal area]. Bloomberg Japan (in Japanese). Archived from the original on 24 November 2022. Retrieved 26 November 2022.

[:1-6] "東京都の臨海地下鉄「羽田空港接続」も検討へ事業計画案を公表、6km・7駅を整備" [Business Plan for the Tokyo's Rinkai Subway and Haneda Airport Connection: 6 Kilometers and 7 Stations]. news.railway-pressnet.com (in Japanese). 25 November 2022. Archived from the original on 25 November 2022. Retrieved 26 November 2022.