The is a

rapid transit Rapid transit or mass rapid transit (MRT), also known as heavy rail or metro, is a type of high-capacity public transport generally found in urban areas. A rapid transit system that primarily or traditionally runs below the surface may be c ...

electric multiple unit An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a numbe ...

(EMU) train type operated on the

Sendai Subway Namboku Line The is a rapid transit line of Sendai Subway in Sendai, Japan. It connects Izumi-Chūō Station in Izumi-ku, Sendai, with Tomizawa Station in Taihaku-ku, Sendai. The line is long and has 17 stations. Like many mainline trains and metros in Ja ...

Sendai is the capital Cities of Japan, city of Miyagi Prefecture, the largest city in the Tōhoku region. , the city had a population of 1,091,407 in 525,828 households, and is one of Japan's 20 Cities designated by government ordinance of Japan, desig ...

, Japan. The 1000 series was the world's first train type to use

fuzzy logic Fuzzy logic is a form of many-valued logic in which the truth value of variables may be any real number between 0 and 1. It is employed to handle the concept of partial truth, where the truth value may range between completely true and completely ...

to control its speed, and this system developed by

Hitachi () is a Japanese multinational corporation, multinational Conglomerate (company), conglomerate corporation headquartered in Chiyoda, Tokyo, Japan. It is the parent company of the Hitachi Group (''Hitachi Gurūpu'') and had formed part of the Ni ...

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. It was the recipient of the 28th

Laurel Prize The is an award presented annually in Japan since 1961 by the Japan Railfan Club. It is awarded for railway vehicles that entered service in the previous year and voted by the selection committee as having the most outstanding functional and des ...

award presented by the Japan Railfan Club.

Refurbishment

From 2004 until 2013, the 1000 series trains underwent mid-life refurbishment to extend their lifespan. As of April 2009, 12 sets have been refurbished, and the refurbished sets are renamed 1000N series. The refurbished trains include the following features. *

LED A light-emitting diode (LED) is a semiconductor Electronics, device that Light#Light sources, emits light when Electric current, current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy i ...

destination indicators at the train ends * Space for

wheelchair A wheelchair is a chair with wheels, used when walking is difficult or impossible due to illness, injury, problems related to old age, or disability. These can include spinal cord injuries ( paraplegia, hemiplegia, and quadriplegia), cerebr ...

s *

Air-conditioning Air conditioning, often abbreviated as A/C or AC, is the process of removing heat from an enclosed space to achieve a more comfortable interior environment (sometimes referred to as 'comfort cooling') and in some cases also strictly controlling ...

* LED destination indicators inside trains

Interior

File:Sendai-subway-1000.jpg, Interior of the Sendai Subway 1000 series

References

{{Reflist

External links

Sendai City Transportation Bureau website
Electric multiple units of Japan Sendai Subway Namboku Line Train-related introductions in 1987 Kawasaki multiple units 1500 V DC multiple units of Japan

Refurbishment

Interior

See also

References

External links