Sendai Subway 1000 series
Encyclopedia
The is a rapid transit
EMU type operated on the Nanboku Line in Sendai
, Japan
.
The 1000 series was the world's first train type to use fuzzy logic
to control its speed, and this system (developed by Hitachi
) 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
award presented by the Japan Railfan Club.
The refurbished trains will feature
Rapid transit
A rapid transit, underground, subway, elevated railway, metro or metropolitan railway system is an electric passenger railway in an urban area with a high capacity and frequency, and grade separation from other traffic. Rapid transit systems are typically located either in underground tunnels or on...
EMU type operated on the Nanboku Line in Sendai
Sendai, Miyagi
is the capital city of Miyagi Prefecture, Japan, and the largest city in the Tōhoku Region. In 2005, the city had a population of one million, and was one of Japan's 19 designated cities...
, Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
.
The 1000 series was the world's first train type to use fuzzy logic
Fuzzy logic
Fuzzy logic is a form of many-valued logic; it deals with reasoning that is approximate rather than fixed and exact. In contrast with traditional logic theory, where binary sets have two-valued logic: true or false, fuzzy logic variables may have a truth value that ranges in degree between 0 and 1...
to control its speed, and this system (developed by Hitachi
Hitachi, Ltd.
is a Japanese multinational conglomerate headquartered in Marunouchi 1-chome, Chiyoda, Tokyo, Japan. The company is the parent of the Hitachi Group as part of the larger DKB Group companies...
) 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
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 design features....
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, and the refurbished sets are renamed as 1000N series.The refurbished trains will feature
- LED station indicators at front of first and last cars
- Space for wheelchairWheelchairA wheelchair is a chair with wheels, designed to be a replacement for walking. The device comes in variations where it is propelled by motors or by the seated occupant turning the rear wheels by hand. Often there are handles behind the seat for someone else to do the pushing...
s - Air-conditioning
- LED destination indicators inside trains