The Tokyo Metro Tozai Line (東京メトロ東西線, Tōkyō Metoro Tōzai-sen) is a 19 mile & rapid transit line in Tokyo & Chiba Prefecture, Japan, owned & operated by Tokyo Metro. It's name translates to "East-West Line". There are 23 stations of this route between Nakano in Nakano-ku, Tokyo & Nishi-Funabashi in Funabashi, Chiba Prefecture with a double track. The Tōzai Line was referred to as Line 5 during the planning stages; the seldom-used official name is Line 5 Tōzai Line (5号線東西線, Go-gō-sen Tōzai-sen). The line carries an average of 1,642,378 passengers daily (2017), making it the busiest line on the Tokyo Metro network. On maps, diagrams & signboards, the Tōzai Line is shown using the color "sky blue" & its stations are given numbers using the letter "T". Overview The line runs through central Tokyo from east to west via Takadanobaba, Waseda, Ōtemachi, Nihombashi, Kiba & Urayasu. It was opened as a bypass route for the Chuo Rapid Line & the Sobu Line, which were heavily congested at the time. It's the only Tokyo Metro line to extend into Chiba Prefecture (although the Shinjuku Line operated by Toei also extends into Chiba Prefecture.) It also runs above-ground for 14 km (8.7 mi) from Minami-Sunamachi to Nishi-Funabashi, nearly half of the line and longer than any other railway line in the Tokyo subway network. The Tōzai Line features through services at both ends of the line. Trains run onto the JR East Chūō-Sōbu Line for Mitaka at the western (Nakano) end, and onto either the Chūō-Sōbu Line for Tsudanuma or the Tōyō Rapid Railway Line for Tōyō-Katsutadai at the eastern (Nishi-Funabashi) end. According to the Tokyo Metropolitan Bureau of Transportation in 2018, the Tokyo Metro Tōzai Line continues to be most crowded subway line in Tokyo, and the most crowded train line in all of Japan, with its peak running at 199% capacity between Kiba & Monzen-Nakachō stations. Women-only cars were introduced on the line for use during morning rush hour on November 20th, 2006. During the COVID-19 pandemic, peak ridership dropped from a rate of 199% in 2019 to 123% in 2020. Services The Tōzai Line was the first Tokyo Metro line on which express services run: two types of rapid trains skip some stations east of Toyocho. The Tokyo Metro Fukutoshin Line began services on June 14th, 2008, and also features express services. Through services to Mitaka via the JR East Chūō Line & Tōyō-Katsutadai via the Tōyō Rapid Railway run all day. Outside of rush hours, only local trains run through to the Chūō Line & only rapid trains run through to the Tōyō Rapid Railway. During the morning & evening peak periods, through services run to Tsudanuma via the JR East Sōbu Line. Some trains terminated @ Myoden, Mitaka, Tsudanuma or etc. Rolling stock Present Tōzai Line trains are 10-car formations of 20-meter (65 ft 7 in)-long cars, with four doors per side and longitudinal seating. The maximum operating speed is 100 km/h (62 mph). 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) A local train bound for Nakano by the 15000 series 15113 set that enters Minami Gyotoku Station on the Tokyo Metro Tozai Line. For more info, go to... https://wikipedia.org/wiki/Tokyo_Metro_Tozai_Line https://wikipedia.org/wiki/Tokyo_Metro_15000_series https://tokyometro.jp/lang_en/station/line_tozai/index.html
Would be nice but so far as we know only Union Workshop are developing Japanese content and they are still working on the Tadami Line.
