Sendai Subway 1000 series
The Sendai Subway 1000N series (仙台市交通局1000N系電車) is a rapid transit electric multiple unit (EMU) train type operated on the Sendai Subway Namboku Line in Sendai, Japan.
| Sendai Subway 1000N series | |
|---|---|
 A Sendai Subway 1000N series train, October 2008 | |
| In service | 1987-present |
| Manufacturer | Kawasaki Heavy Industries |
| Constructed | 1985-2007 |
| Refurbished | 2004-2013 |
| Number built | 84 vehicles (21 sets) |
| Formation | 4 cars per trainset |
| Capacity | 144 passengers per car (58 seating, 54 post-refurbishment) |
| Operator(s) | Sendai City Transportation Bureau |
| Line(s) served | Sendai Subway Namboku Line |
| Specifications | |
| Car length | 21,750 mm (71 ft 4 in) (end cars) 20,000 mm (65 ft 7 in) (intermediate cars) |
| Width | 2,890 mm (9 ft 6 in) |
| Height | 4,040 mm (13 ft 3 in) |
| Doors | 4 pairs per side |
| Maximum speed | 75 km/h (45 mph) |
| Weight | 128.0 t |
| Traction system | Chopper control (originally) VVVF (post-refurbishment) |
| Power output | 160 kW |
| Transmission | Westinghouse-Natal drive; Gear ratio: 5.73 |
| Acceleration | 3.0 km/h/s (3.5 km/h/s post-refurbishment) |
| Deceleration | 3.7 km/h/s (service maximum) 4.5 km/h/s (emergency) |
| Electric system(s) | 1,500 V DC |
| Current collection method | Overhead catenary |
| Bogies | SS-005, SS-105 |
| Braking system(s) | Electromagnetic braking |
| Safety system(s) | ATC/ATO (Fuzzy logic) |
| Track gauge | 1,067 mm (3 ft 6 in) |
The 1000 series was the world's first train type to use fuzzy logic to control its speed, and this system developed by Hitachi[1] accounts for the relative smoothness of the starts and stops when compared to other trains, and is 10% more energy efficient than human-controlled acceleration.[2] It was the recipient of the 28th Laurel Prize award presented by the Japan Railfan Club.
Refurbishment
From 2004 until 2013, the 1000 series trains will undergo mid-life refurbishment to extend their lifespan. As of April 2009, 12 sets have been refurbished,[3] and the refurbished sets are renamed 1000N series.
The refurbished trains include the following features.
- LED destination indicators at the train ends
- Space for wheelchairs
- Air-conditioning
- LED destination indicators inside trains
Interior
Interior of the Sendai Subway 1000 series
See also
References
- Andrew Pollack (April 2, 1989). "Fuzzy Computer Theory: How to Mimic the Mind?". The New York Times. Retrieved 2011-03-11.
- Philip Elmer-DeWitt (September 25, 1989). "Time For Some Fuzzy Thinking". Time. Retrieved 2011-03-11.
- http://www.city.sendai.jp/toshi/touzaisenchousei/nandemo/pdf/design5-2.pdf. Retrieved 2011-03-11.