Odakyu 4000 series

The Odakyu 4000 series (小田急4000形, Odakyū 4000-gata) is a 1,500 V DC commuter electric multiple unit (EMU) train type operated by the private railway operator Odakyu Electric Railway in Japan since 2007.[2]

Odakyu 4000 series
Odakyu 4000 series set number 4051 on the Tama Line in July 2007
Manufacturer	Tokyu Car Corporation, J-TREC, JR East[1]
Built at	Yokohama, Niitsu
Replaced	Odakyu 1000 series
Constructed	2007–2016
Entered service	September 2007
Number built	150 vehicles (15 sets)
Number in service	150 vehicles (15 sets) (as of 1 April 2016)
Formation	10-car sets
Fleet numbers	4051–4066
Operator(s)	Odakyu Electric Railway
Depot(s)	Kitami
Line(s) served	Odakyu Odawara Line, Odakyu Tama Line, Tokyo Metro Chiyoda Line
Specifications
Car body construction	Stainless steel
Car length	20 m (65 ft 7 in)
Doors	4 pairs per side
Maximum speed	100 km/h (60 mph)[1]
Traction system	VVVF
Power output	190 kW per motor[1]
Acceleration	3.3 km/(h⋅s) (2.1 mph/s)[1]
Deceleration	4.0 km/(h⋅s) (2.5 mph/s) (service) 4.7 km/(h⋅s) (2.9 mph/s) (emergency)
Electric system(s)	1,500 V DC Overhead lines
Current collection method	Pantograph
Braking system(s)	Regenerative brake
Safety system(s)	OM-ATS, CS-ATC
Track gauge	1,067 mm (3 ft 6 in)

Design

The trains are based on the JR East E233-2000 series narrow-body EMU design to permit subway running.[2] The traction motors are fully enclosed to reduce environmental noise.[2]

Formation

As of 1 April 2016, 15 ten-car sets are in service, numbered 4051 to 4065, and formed as follows.[3]

Car No.	1	2	3	4	5	6	7	8	9	10
Designation	Tc2	M6	M5	T2	T1	M4	M3	M2	M1	Tc1
Numbering	4550	4500	4400	4450	4350	4300	4200	4100	4000	4050

• Cars 3, 7, and 9 each have one single-arm pantograph.[3]
• Car 2 is designated as a mildly air-conditioned car.[3]

Interior

Passenger accommodation consists of longitudinal bench seating throughout. Cars 1 and 10 have wheelchair spaces.[3]

• 
  Interior view
• 
  Seating
• 
  Tip-up seat for wheelchair space
• 
  Priority seating

History

The first train was delivered in May 2007, and the trains entered service in September 2007 on inter-running services between Odakyu and the Tokyo Metro Chiyoda Line, displacing 1000 series sets, which were cascaded to surface lines to replace older 5000 and 5200 series sets.

References

1. 首都圏鉄道完全ガイド　主要私鉄編 [Tokyo Area Complete Railway Guide - Major Private Lines] (in Japanese). Japan: Futabasha. 22 July 2013. p. 20. ISBN 978-4-575-45387-4.
2. 私鉄車両年鑑2013 [Japan Private Railways Annual 2013] (in Japanese). Tokyo, Japan: Ikaros Publications Ltd. 20 March 2013. p. 189. ISBN 978-4-86320-693-9.
3. 私鉄車両編成表 2016 [Private Railway Rolling Stock Formations - 2016] (in Japanese). Japan: Kotsu Shimbunsha. 25 July 2016. p. 59. ISBN 978-4-330-70116-5.

External links

• Odakyu Press Release (5 February 2007). Retrieved on 13 October 2009. (in Japanese)