The is an electric multiple unit (EMU) train type operated by the Tokyo subway operator Tokyo Metro in Tokyo, Japan, between 1974 and 2022. The design is based on the earlier Tokyo Metro 6000 series trains used on the Tokyo Metro Chiyoda Line. Operations 7000 series trainsets operated on the following lines. Formations , the fleet consists of six ten-car sets and 15 eight-car sets, formed as shown below with car 1 at the northern end. 10-car sets only 7102F Cars 2, 4, and 8 are each fitted with two lozenge-type pantographs. Car 9 is designated as a moderately air-conditioned car. 8-car sets Cars 3 and 7 are each fitted with two lozenge-type pantographs. Car 7 is designated as a moderately air-conditioned car. Interior Passenger accommodation consists of longitudinal bench seating throughout. Cars 2 and 9 in the ten-car sets and cars 2 and 7 in the eight-car sets each have a wheelchair space. Priority seating is provided at the end of each car. History The 7000 series was introduced into service on 30 October 1974, when the Yurakucho Line first opened. Its design is derived from that of the 6000 series developed for the Chiyoda Line. They were initially formed as five-car sets, but after the Yurakucho Line was extended to in 1983, the 7000 series sets were formed as ten-car sets. By 1989, 340 vehicles were built, which were formed into 34 ten-car sets. Refurbishment Between 2007 and 2009, the 7000 series fleet was refurbished coinciding with use on Fukutoshin Line services. The sets were fitted with new driver's cabs, CCTV equipment, updated traction and braking systems, automatic train operation, and other miscellaneous technical improvements. Some sets were also shortened to eight cars. The sets were also reliveried with brown, gold, and white stripes coinciding with use on Fukutoshin Line services. They originally sported a yellow bodyside line when used primarily on Yurakucho Line services. Withdrawal After the refurbishment programme, a significant portion of the 7000 series fleet was withdrawn; four of these sets were shipped to Indonesia in 2010. In 2020, Tokyo Metro unveiled the 17000 series, which was intended to replace the remaining 7000 series sets by the end of fiscal 2022. As of April 2022, all operations have ended. Overseas operations Four 7000 series ten-car sets (7117, 7121, 7122, and 7123) were shipped to Indonesia in 2010 for use on suburban services operated by KAI