Osaka Municipal Subway New 20 series

Japanese train type

SpecificationsCar body constructionStainless steelTrain length187.4 m (614 ft 10 in) (21 series)
112.6 m (369 ft 5 in) (22/23/24/OTS series)
75.2 m (246 ft 9 in) (25 series)Car length18.9 m (62 ft 0 in) (end cars)
18.7 m (61 ft 4 in) (intermediate cars)Width2.89 m (9 ft 6 in) (end cars)
2.88 m (9 ft 5 in) (intermediate cars)Height3,745 mm (12 ft 3 in)Doors4 pairs of sliding doors per sideMaximum speed95 km/h (59 mph) (24 series; Kintetsu Keihanna Line)
70 km/h (43.5 mph) (other series)Traction systemVariable-frequencyTraction motorsFour 140 kW (188 hp) traction motors per motor carPower output560 kW (751 hp) per motor carAcceleration3 km/(h⋅s) (1.9 mph/s) (21/24 series)
2.5 km/(h⋅s) (1.6 mph/s) (other series)Deceleration3.5 km/(h⋅s) (2.2 mph/s)
4.5 km/(h⋅s) (2.8 mph/s) (emergency)Electric system(s)750 V DCCurrent collector(s)Third rail contact shoesBraking system(s)Electric commanding brake with regenerative brakeSafety system(s)WS-ATC (21/22/23/24/OTS series)
WS-ATC, CS-ATC, ATO (25 series) TASC (21 series)Track gauge1,435 mm (4 ft 8+12 in)

The Osaka Municipal Subway New 20 series (大阪市交通局新20系) is a rapid transit electric multiple unit (EMU) train type operated by Osaka Municipal Subway in Japan since 1990.

Variants

The New 20 series was developed from the earlier 20 series trains introduced on the Chūō Line from 1984.

  •   21 series: 10-car sets used on the Midōsuji Line and the Kita-Osaka Kyuko Railway Namboku Line
  •   22 series: 6-car sets used on the Tanimachi Line
  •   23 series: 6-car sets used on the Yotsubashi Line
  •   24 series: 6-car sets used on the Chūō Line and the Kintetsu Keihanna Line
  •   25 series: 4-car sets used on the Sennichimae Line
  •   OTS series (OTS系): 6-car sets introduced in 1997 on the opening of the Cosmosquare to Osakakō segment of the Chūō Line and owned by Osaka Port Transport System (OTS) [ja], transferred to Tanimachi Line in 2006 and reclassified as 22-50 series
  • A 21 series set in February 2006
    A 21 series set in February 2006
  • A 22 series set in April 2006
    A 22 series set in April 2006
  • A refurbished 23 series set in August 2012
    A refurbished 23 series set in August 2012
  • A refurbished 24 series set in April 2017
    A refurbished 24 series set in April 2017
  • A refurbished 25 series set in February 2014
    A refurbished 25 series set in February 2014
  • An OTS series set in July 2002
    An OTS series set in July 2002
  • 21 series rooftop AC condenser unit
    21 series rooftop AC condenser unit

Formation

Trains are formed as follows.[1]

21 series

Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tec2 Ma2 Mb2 T T' Ma1' Tbp Mb1 Ma1 Tec1
Numbering 219xx 212xx 213xx 215xx 218xx 214xx 217xx 211xx 210xx 216xx

Car 6 is designated as a women-only car (Weekday only).

22/23/24/OTS series

Car No. 1 2 3 4 5 6
Designation Tec1 Mb1' T' Mb2 Ma2 Tec2
Numbering 2600 2100 2800 2300 2200 2900

22 series car 3 is designated as a women-only car (Rush hour only).

25 series

Car No. 1 2 3 4
Designation Tec1 Mb1' Mb2 Tec2
Numbering 256xx 251xx 253xx 259xx

References

  1. ^ 私鉄車両編成表 2016 [Private Railway Rolling Stock Formations - 2016] (in Japanese). Japan: Kotsu Shimbunsha. 25 July 2016. pp. 154–156. ISBN 978-4-330-70116-5.
  • v
  • t
  • e
Osaka Metro trainsets
Midōsuji Line
Tanimachi Line
Yotsubashi Line
  • 23 series
Chūō LineSennichimae Line
  • 25 series
Sakaisuji LineNagahori Tsurumi-ryokuchi Line
Imazatosuji Line
  • 80 series
Withdrawn