History
Tōyōchō Station opened on 14 September 1967 as the original eastern terminus of the new Teito Rapid Transit Authority Tōzai Line. The extension to Nishi-Funabashi on 29 March 1969 made it an intermediate stop and the eastern end of the Rapid non-stop segment. A 1998–2004 reconstruction widened platforms from 3.5 metres to as much as 7.25 metres and added escalators and elevators. Tokyo Metro inherited the station on 1 April 2004, PASMO acceptance began in 2007, and in September 2009 a maintenance vehicle collided with a stabled 05-series train causing a service disruption. A third concourse opened on 31 March 2016 to absorb traffic from the planned Yūrakuchō Line branch.
History summarized from Japanese & English Wikipedia · last reviewed 2026-06-09.
Notes
Tōyōchō is the busiest single-line station in the Tokyo Metro network — busier even than the transfer station of Monzen-Nakachō on the same line.