E235 series
| E235 series | |
|---|---|
The first, pre-series, set on a test run, April 2015
|
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| In service | 30 November 2015 |
| Manufacturer | J-TREC |
| Built at | Niitsu |
| Replaced | E231-500 series |
| Constructed | 2015 - 2020 |
| Number under construction | 539 (49 sets) |
| Number built | 11 vehicles (1 set) |
| Number in service | 11 vehicles (1 set) |
| Formation | 11 cars per trainset |
| Fleet numbers | 01- |
| Operator(s) | JR East |
| Depot(s) | Tokyo General Rolling Stock Centre |
| Line(s) served | Yamanote Line |
| Specifications | |
| Car body construction | Stainless steel |
| Car length | 19,570 mm (64 ft 2 in) (end cars) 19,500 mm (64 ft 0 in) (intermediate cars) |
| Width | 2,950 mm (9 ft 8 in) |
| Height | 3,620 mm (11 ft 11 in) |
| Floor height | 1,130 mm (3 ft 8 in) |
| Doors | 4 pairs per side |
| Maximum speed | 120 km/h (75 mph) |
| Traction motors | Variable frequency (SiC) |
| Acceleration | 3.0 km/h/s |
| Deceleration | 4.2 km/h/s |
| Electric system(s) | 1,500 V DC |
| Current collection method | Overhead catenary |
| Bogies | DT80, TR255, TR264 |
| Safety system(s) | ATS-P, D-ATC |
| Track gauge | 1,067 mm (3 ft 6 in) |
| Notes | |
The E235 series (E235系 E235-kei?) is a DC electric multiple unit (EMU) commuter train type operated by East Japan Railway Company (JR East) on Yamanote Line services in Tokyo, Japan. A pre-series train was delivered in March 2015, first entering revenue service from 30 November 2015, but then taken out of service for three months before re-entering service in March 2016. The type will ultimately replace the E231-500 series trainsets in use since 2002.
The E235 series design was developed from the earlier E233 series trains, and like the E233 and E231 series trains, the new E235 series trains have stainless steel bodies. The exterior styling was overseen by the industrial design firm Ken Okuyama Design. The cars feature vertical green stripes running through the doors, as opposed to the former usage of horizontal stripes to allow easier identification of the line at platforms. Baggage racks and hand-holds have been lowered 5 cm for easier access and the seats are 1 cm wider than previous trains. The car interiors also have up to 36 digital monitors for various informational displays. The window behind the drivers cab has been lowered so children can get a better view of the operator of the cars. The temperature of each car is also monitored; the system can predict the number of passengers at upcoming stations and adjust the temperature for passenger comfort. This information is also communicated to a smart phone application, allowing customers to choose in which car to ride based on their temperature preference.
A DT80 motor bogie
A pre-series set entered revenue service in November 2015, with the entire fleet of 52 E231-500 series trains used on the Yamanote Line scheduled to be replaced by E235 series trains before the 2020 Summer Olympics in Tokyo.
The E235 series trains are formed as 11-car sets with six motored ("M") cars and five non-powered trailer ("T") cars, as shown below. The SaHa E235-4600 car (car 10) is modified from a former E231-500 series SaHa E231-4600 car.
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