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Keiō New Line: Wikis


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The Keio New Line (京王新線 Keio Shinsen ?) is a 3.6 km link which connects Keio Corporation's Keiō Line from Sasazuka Station in Shibuya to Shinjuku Station with through service on to the Shinjuku Line of the Tokyo Metropolitan Bureau of Transportation.


Route information

  • Length: 3.6 km
  • Gauge: 1372 mm
  • Stations: 4


The Keio New Line began operation on October 30, 1978. With the completion of the last segment of the Toei Shinjuku Line, through service operations began on March 30, 1980.

The Keio New Line generally follows the main Keiō Line along National Route 20 (Kōshū Kaidō) on a deeper route. Except for a short segment just before Sasazuka Station, the entire line is underground.

Because the line was built to normal railway standards and not to subway standards, only specially-designed trains can travel along the Keio New Line. However, since new train cars are being designed to be able to operate on above-ground and below-ground tracks there is no real point to the differentiation. All trains going west of Sasazuka Station start and arrive at Shinjuku Station. During events at the Tokyo Racecourse, there are express trains that run from Fuchūkeibaseimonmae Station to Shinjuku station.

The Keio New Line shares the same platforms with the Toei Shinjuku Line at Shinjuku Station. From here trains travel west-southwest. At Hatsudai Station, the westbound platform is two floors underground while the eastbound one is three floors underground. (Both platforms are on the north side of the station.) At Hatagaya Station both platforms are two floors underground with platforms on either side of the two central tracks. From this point, the Keio New line diverges from the Kōshū Kaidō and heads towards the Keiō Line further south. The Keiō Line runs along the outside of the New Line on an elevated viaduct over Prefectural Road 420 (Nakano Dori) until Sasazuka Station.

Since most trains connecting to the Keio New Line from the Toei Shinjuku Line run as far as Sasazuka Station, both the Keiō Line and Toei Shinjuku Line operations are being unified.


  • Although there are four types of trains that travel along the Keio New Line segment (local, rapid, commuter rapid, and express), all trains within the Keio New Line stop at every station.
  • There are trains that start and finish at each station listed below (as of April 2006).
Station km Connections Ward / City
(New Line Shinjuku)
0.0 Chūō Main Line, Odakyu Odawara Line, Tokyo Metro Marunouchi Line, Toei Shinjuku Line, Toei Oedo Line, Yamanote Line, Shonan Shinjuku Line, Saikyo Line Shinjuku
Hatsudai 1.7 Shibuya
Hatagaya 2.7
Sasazuka 3.6 Keiō Line

Hatsudai and Hatagaya Stations: Only on the New Line

All Keiō Line trains bypass Hatsudai and Hatagaya stations, which are located on the Keio New Line. Customers traveling to Hatsudai and Hatagaya are directed to board at Shinsen Shinjuku Station, but those not used to the system often mistakenly board at the main Keiō Line station. (While Hatsudai and Hatagaya stations are served by both the Keio New Line and the Toei Shinjuku Line, those lines are not usually referred to together.)

The old Keiō Line platform at Hatsudai still exists and is used to store building materials.



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