Ōi Junction

The Ōi Junction (大井ジャンクション, Ōi Jankushon) is a junction that connects the Bayshore Route, Haneda Route, and Central Circular Route of the Shuto Expressway in Yashio, Shinagawa, Tokyo.

Ōi Junction
大井ジャンクション
Ōi Jankushon
Ōi JCT
Location
Yashio, Shinagawa, Tokyo
Coordinates35°36′21″N 139°45′18″E
Construction

Overview

Until November 19, 2013, the Ōi Junction was a one-way junction from both directions on the Bayshore Route to the Haneda Route going up, but due to a change in the operation of the junction due to the connection of the Central Circular Route, the Bayshore was to be at 20:00 on the same day. The connecting road from the westbound line (toward Yokohama) to the Haneda Route going up was closed.[1] In addition, due to the construction of the Central Circular Route, Ōi Parking Area moved to Yokohama on July 17, 2012.[2]

The Central Circular Route was connected on March 7, 2015. After the connection, connect from the westbound of the Bayshore Route to the outer loop of the Central Circular Route, from the eastbound of the Bayshore Route to both the uphill of the Haneda Route and the outer loop of the Central Circular Route, and from the inner loop of the Central Circular Route to both directions of the Bayshore Route.[3]

Since June 8, 2016, the connecting road from the eastbound of the Bayshore Route to the uphill of the Haneda Route had been closed for a long time due to the renewal work of the Haneda Route Higashi Shinagawa Pier/Samesu Landfill. However,[4] the closure was lifted by being provisionally connected to the upstream circuit on September 29, 2019.[5]

In addition, due to the abolition of the Oi Main Line tollgate, the Oi-minami Interchange, which was in front of the junction of the Bayshore Route eastbound and the Central Circular Route, was converted to exclusive use for the Central Circular Route outerbound on April 15, 2019, and the name was changed. It was changed to the Oi-minami entrance, and from the same day, the junction of this JCT was relocated to the front (closer to Yokohama) of the Oi-minami entrance.[6]

References
  1. The usage method of Ōi Junction will be changed from 20:00 on November 19, 2013 (Tuesday). (Shuto Expressway Co., Ltd. announced on September 19, 2013, viewed on the same day)
  2. Oi Parking Area will move（Shuto Expressway Co., Ltd. Announced on June 15, 2012, viewed on June 18, 2012）
  3. 大井JCTのご利用方法が変更となります。〜「湾岸線（西行き）⇒1号羽田線（上り）」の経路が閉鎖となります〜（首都高速道路株式会社2013年9月19日発表、同日閲覧））
  4. "平成28年6月8日（水）20時より 大井ジャンクション（湾岸線→羽田線）の経路が長期通行止めとなります 〜中央環状線（山手トンネル）方向は利用できます〜". 首都高速道路株式会社. 2016-05-11. Retrieved 2016-05-15.
  5. "大井ジャンクション（湾岸線東行き→羽田線上り）2019年9月29日（日）14時に長期通行止めを解除します 〜あわせて大井ジャンクションの車線運用改良工事を実施します（41時間連続通行止め）〜". 首都高速道路株式会社. 2019-08-29. Retrieved 2019-08-29.
  6. "湾岸線（東行き）大井南入口の運用変更及び名称変更の日時決定について 〜2019年4月15日（月）午前6時から変更となります〜". 首都高速道路株式会社. 2019-03-15. Retrieved 2019-03-15.
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