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New Rolling Stock to be Introduced on Keihin-Tohoku Line and Negishi Line
—Series E233 direct current electric railcars—

East Japan Railway Company

September 5, 2006

East Japan Railway Company is moving ahead with plans to introduce new rolling stock on suburban routes in the Tokyo Metropolitan area. We finished replacing all old-style trains on the Yamanote Line in April 2005 and will be introducing new railcars on the Chuo Line (rapid service) from December this year. Through such initiatives, we are further enhancing the reliability of trains and improving the service we offer. As well as enhancing accessibility for all passengers, we are installing screens in new trains to provide passengers with service-related and other information.
Next, we will introduce new railcars on the Keihin-Tohoku and Negishi Lines. These cars will be the series E233, the same as those being brought into service on the Chuo Line (rapid service). These railcars offer passengers the following benefits.

  • The new cars feature backups for the main equipment, including electric equipment and safety devices. This means the train can continue running even if one out of a pair of devices fails, which reduces service disruptions.
  • Universal Design has been employed to provide enhanced comfort and usability for passengers. The heights of luggage racks and hand straps have been lowered around priority seating and in other areas, and the priority seating areas have been made clearly visible.
  • The floor has been lowered to reduce the step between the train and the platform, thereby increasing accessibility for all passengers.
  • Information displays screens have been installed above doors to provide passengers with service-related information, news and other information.
1.  Number of cars to be manufactured 830
2. Cars to be introduced New cars are scheduled to be brought into service from autumn 2007.
3. Lines on which the new cars will be used     Keihin-Tohoku Line and Negishi Line (Omiya to Ofuna via Yokohama)
4. Overview of rolling stock
Please refer to the separate sheet.

Overview of Keihin-Tohoku Line Series E233 Railcars


Cars that are not liable to fail (reducing service disruptions)

Backups of main equipment fitted

  • Train can still carry on running even if one out of a pair fails.
Increasing the comfort and usability of cars, paying particular attention to senior citizens, females and the physically impaired

Using Universal Design and improving accessibility for all

  • Height of luggage racks and hand straps each lowered by 50 mm around priority seating
  • Priority seating areas clearly marked
  • Braille used on doors
  • Floor of the train lowered to reduce the step between the train and the platform, from 80 mm to 30 mm
  • Shape of handrails modified to make them easier to hold

Air conditioning and wider seats for extra comfort

  • Automatic air conditioning system fitted to all cars for more accurate temperature control
  • Air purifiers installed
  • Seats widened from 450 mm to 460 mm
  • Sterilized hand straps
Improved information displays and technical performance of cars

Wide range of information for passengers

  • Inside the train: LCD displays to provide passengers with service-related information and news
  • On the outside of the train: full-color train destination displays

Stainless steel wider-bodied cars to ease congestion

  • Distinctive light blue line retained on side of train
Enhanced resilience of train body

Backups for main equipment

Backups for main equipment

External appearance

External appearance

Priority seating area

Priority seating area

Comparison of new and old models

Series E233 209
Number of cars 10 (6M4T) 10 (4M6T)
Body Stainless steel
(width of body increased)
Stainless steel
(straight-sided body)
Capacity 1480 1400
Height of floor 1130 mm 1180 mm

Series 209

Series 209