The 70000 series trains are scheduled to replace the 20000 series EMUs used on Tobu Skytree Line and Tokyo MetroHibiya Line inter-running services. The new trains have 20 m long cars instead of the 18 m long cars of the 20000 series, and a unified door arrangement with four pairs per side instead of the mixture of three and five pairs per side on the 20000 series trains. This will allow the installation of platform edge doors on the Tokyo Metro Hibiya Line once the older train fleets have been replaced. But, because of platform lengths the trains had to have car numbers decreased from 8 to 7, resulting in about a 1% reduction in capacity. The trains use PMSM, offering 25% energy savings compared to the motors used in earlier 20000 series trains.
Formation
The 70000 series trains are formed as seven-car sets as shown below, with car 1 at the northern end. Each car is motored, with only the outer axle on each bogie motored.
Car No.
1
2
3
4
5
6
7
Designation
Mc2
M1'
M2'
M3
M2
M1
Mc1
Numbering
777xx
767xx
757xx
747xx
737xx
727xx
717xx
Weight
34.5
33.1
33.2
35.1
32.9
33.2
34.3
Capacity
140/45
151/51
151/51
151/51
151/51
151/51
140/45
Car 4 has two single-arm pantographs, and cars 2 and 6 each have one.
Interior
Internally, the trains use LED lighting throughout. Three 17-inch LCD passenger information displays are provided above each doorway. Seating consists of longitudinal bench seats throughout, with a seat width of per person. Wheelchair spaces are provided at one end of each car.
History
Tobu Railway announced its plans to introduce a new fleet of trains with 20 m long cars and four sets of doors per side on each car in April 2014, jointly with Tokyo Metro. Details of the new 70000 series trains on order were officially announced on 17 June 2015, together with details of the Tokyo Metro 13000 series to be introduced around the same time. The entire fleet of new trains is scheduled to be delivered between fiscal 2016 and fiscal 2019, with the first set delivered from Kinki Sharyo in February 2017. The first trains entered revenue service on 7 July 2017.
Build histories
The manufacturers and delivery dates for the fleet are as shown below.
Set No.
Manufacturer
Date delivered
71701
Kinki Sharyo
February 2017
71702
Kinki Sharyo
March 2017
71703
Kinki Sharyo
March 2017
71704
Kinki Sharyo
November 2017
71705
Kinki Sharyo
December 2017
71706
Kinki Sharyo
January 2018
71707
Kinki Sharyo
January 2018
71708
Kinki Sharyo
February 2018
71709
Kinki Sharyo
February 2018
71710
Kinki Sharyo
March 2018
71711
Kinki Sharyo
January 2019
71712
Kinki Sharyo
January 2019
71713
Kinki Sharyo
February 2019
71714
Kinki Sharyo
February 2019
71715
Kinki Sharyo
March 2019
71716
Kinki Sharyo
March 2019
71717
Kinki Sharyo
January 2020
71718
Kinki Sharyo
January 2020
70090 series
70090 series trains are scheduled to be used on Tobu and Tokyo Metro Hibiya Line interrunning services from fiscal 2020. They feature a different exterior color scheme than the 70000 series. The service, branded "TH Liner", offers reserved seating. Set 71792 entered revenue service on 20 March 2020.
Interior
The sets have seats that can be configured in longitudinal style or in transverse style.
Build histories
The manufacturers and delivery dates for the fleet are as shown below.
