New station on Tokyo Metro Hibiya Line

[nartak]

Tokyo metropolitan government released mid-term report on their "Tokyo long-term vision", which includes long-term development plan for Tokyo metropolitan area especially in preparation for oncoming 2020 Olympic game.

Within the report, it states that Tokyo metropolitan government is planning to build a new station between Kasumigaseki and Kamiyacho station on Tokyo Metro Hibiya Line.

Not sure the exact location but the location will be close to Ginza Line's Toranomon station, so it may become another transit station between Hibiya Line and Ginza Line.  Also assume the new station will be directly connected with recently opened Toranomon Hills.

Apart from above, Hibiya Line rolling stock will be replaced with 20-meter with 4 door cars from 18-meter with 3/5 door cars now.  After the rolling stock refresh, they will be installing platform doors.  Hope everything will be completed before 2020.

[Guest keio6000]

The distance from the Hibiya Platform at kasumigaseki to the ginza platform at toranomon is only 350m.  Clearly, when the line was initially built they had a choice of connecting to the marunouchi line or the ginza line and chose the former.

 

The distance between kamiyacho and kasumigaseki is long enough that another station would not be a total farce (i wonder waht the closest tokyo metro inter-station distance is - akasaka to kokkaigijidomae? mitsukoshimae to otemachi?).   it makes some sense.

 

presumably the hibiya system was widened to accomodate 20m cars after the accident some years back?

[bikkuri bahn]

AFAIK the HIbiya Line derailment had nothing to do with vehicle length, but rather complex issues of track curvature, cant, and stability at certain loadings and at low speed. Subsequently, newer rolling stock for Tokyo Metro have utilized bolster-equipped bogies, which are easier to adjust and offer more stability at low speeds and sharp curves than bolsterless bogies.