The Tokyo Outer Ring Road is an approximately 85 km long road that connects the area within 15 km from the center of the city in a ring shape, and is an important road for alleviating congestion in the Tokyo metropolitan area, improving the environment, and realizing a smooth transportation network.
With the opening of the Takaya JCT from Misato Minami IC, the Kan-Etsu Expressway, Tohoku Expressway, Joban Expressway and East Kanto Expressway will be connected via the outer ring road.

As for the outer ring road, the Ministry of Land, Infrastructure, Transport and Tourism, East Japan Expressway Co., Ltd., and Central Japan Expressway Co., Ltd. are jointly promoting a project of about 16km in the Tokyo section connecting the Tomei Expressway from Kan-Etsu Expressway. I am.

Metropolitan area three ring road
Metropolitan area three ring road
Project map
Project map
The tunnel is below 40m underground
The Tokyo Outer Ring Road (Kanetsu to Tomei) is a road that passes through the urban areas of Nerima-ku, Suginami-ku, Musashino-shi, Mitaka-shi, Chofu-shi, Komae-shi, and Setagaya-ku, which are densely populated with houses, etc. With the aim of reducing the impact of Therefore, the tunnel structure (shield tunnel) that is constructed as deep as 40m underground is basically used, and the junction between the main line tunnel and the ramp tunnel is planned as a non-excavation structure in the ground.
3 JCTs, 3 ICs
The Oizumi JCT will be installed at the connection with Kan-Etsu Expressway, the central JCT will be installed at the connection with the Chuo Expressway, and the Tomei JCT will be installed at the connection with the Tomei Expressway.
An IC will be installed at the connection with Mejiro Dori, Ome Kaido and Tohachi Road.

The Tokyo Metropolitan Area 3 Ring Road aims to alleviate chronic traffic congestion in central Tokyo and contribute to environmental improvement, and as social capital that supports the economic activities and living of the metropolitan area, which is the center of Japan's economic activities. A road that plays an important role.
With the recent opening, the stock effect has been exerted as an important network that enhances the productivity of the entire metropolitan area.

Shortening of travel time between the Kan-Etsu Expressway and the Tomei Expressway
Shortening of travel time between the Kan-Etsu Expressway and the Tomei Expressway