Odakyū 4000 series
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| Odakyū 4000 series | |
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 Odakyū 4000 series set number 4051 on the Tama Line (25 August 2007) |
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| In service | September 2007 - Present |
| Manufacturer | Tokyu Car Corp |
| Number built | 70 vehicles on order (7 sets) |
| Formation | 10-car sets |
| Operator | Odakyu Electric Railway |
| Specifications | |
| Car length | 20 m |
| Maximum speed | 100 km/h |
| Acceleration | 3.3km/h/s |
| Deceleration | 4.0km/h/s (service) 4.7km/h/s（emergency） |
| Traction system | VVVF |
| Gauge | 1,067 mm |
| Voltage | 1,500 V DC overhead |
| Braking system | Regenerative brake |
| Safety systems | OM-ATS, CS-ATC |
The 4000 series (4000形 Yonsen gata?) is a commuter EMU operated by the Odakyū Electric Railway in Japan.
The first train was delivered in May 2007, and the trains entered service in September 2007 on inter-running services between Odakyū and the Tōkyō Metro Chiyoda Line, displacing 1000 series sets, which will be cascaded to surface lines to replace older 5000 and 5200 series sets. A total of 70 vehicles (formed as seven 10-car sets) are on order.
The trains are based on the JR East E233 series EMU design but with narrow bodies to permit subway running. The traction motors are fully-enclosed (as on the 50000 series VSE sets) to reduce environmental noise.
[edit] References
- Odakyū Press Release (in Japanese)
- Tetsudō Daiya Jōhō Magazine, June 2007 issue, p29
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