at stations marked "●" and do not stop at those marked "｜". Some weekday westbound trains do not stop at stations marked "↑". Rolling stock Present Tōzai Line trains are 10-car formations of 20-meter-long cars, with four doors per side and longitudinal seating. The maximum operating speed is 100 km/h. Newer trains feature wide doors to allow for faster boarding times. Tokyo Metro 05/05N series (since 1988) 07 series (since 2006) (transferred from Yūrakuchō Line) 15000 series (since 2010) Tōyō Rapid Railway 2000 series (since 2004) East Japan Railway Company (JR East) E231-800 series (since 2003) Past Tokyo Metro 5000 series (from 1964 until 2007) 8000 series (from 1987 until 1988, temporary, built for Hanzōmon Line) JR East 301 series (from 1966 until 2003) 103-1000 series (from 1989 until 2003) 103-1200 series (from 1971 until 2003) Tōyō Rapid 1000 series (from 1996 until 2006) Depots Fukagawa Depot (深川検車区) Gyōtoku Depot (深川検車区行徳分室) Fukagawa Workshop (深川工場) Notes a. Crowding levels defined by the Ministry of Land, Infrastructure, Transport and Tourism: 100% — Commuters have enough personal space and are able to take a seat or stand while holding onto the straps or hand rails. 150% — Commuters have enough personal space to read a newspaper. 180% — Commuters must fold newspapers to read. 200% — Commuters are pressed against each other in each compartment but can still read small magazines. 250% — Commuters are pressed against each other, unable to move. References Shaw, Dennis and Morioka, Hisashi, "Tokyo Subways", published 1992 by Hoikusha Publishing External links Tokyo Metro website Lines of Tokyo Metro Railway lines in Tokyo Railway lines in Chiba Prefecture Railway lines opened in 1964 1067 mm gauge railways in Japan