What kind of construction is the Yamanote Line? November 16, 9:56
The JR Yamanote Line in Tokyo, which has been in operation for the opening of the new station, has been suspended for a long time since today's first train.
The work being done this time is a work called “relocation work” that moves the tracks.
There are three lines to move, the inner line of the Yamanote Line, the outer line of the Yamanote Line, and the Keihin Tohoku Line.
This is the first large-scale construction that moves three lines simultaneously in the Tokyo metropolitan area, which has a large amount of transportation.
The reason for the relocation work is that the route of the train will change with the opening of Takanawa Gateway Station.
Until now, the Yamanote Line and Keihin Tohoku Line have passed through the outer periphery to avoid the site of the old depot when passing between Shinagawa Station and Tamachi Station.
This time, “Takanawa Gateway Station” was set up near the middle of the site of the old depot, so it was necessary to move the existing track to connect to the new track before and after the new station.
The reason for large-scale construction is the difference in station structure
The main reason for the large-scale construction of moving three tracks at the same time is the “difference” in the platform structure of Shinagawa and Tamachi stations.
The platform of Shinagawa Station is divided into Yamanote Line and Keihin Tohoku Line by route. At Tamachi Station, Yamanote Line and Keihin Tohoku Line are mixed according to the direction of travel.
For this reason, it was impossible to move the tracks one by one, and the first large-scale construction of “three lines relocated” was to be carried out.