History
Nishiarai Station opened on 27 August 1899 when the Tobu Railway connected Kita-Senju and Kuki on what is now the Tobu Skytree Line (Isesaki Line). On 20 December 1931 the Nishiita Line, today's short Daishi Line branch to Daishi-mae, began operating from here. In December 1966 a collision between trains in the station precinct killed seven passengers and injured twenty. The station hosted Tobu's first automatic ticket gates on a trial basis from August 1972, and station numbering as TS-13 was introduced on 17 March 2012. Continued development around the west exit, including the 1973 Tosca West building and a 2022 entrance renewal, has driven steady ridership growth.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
Nishiarai is one of the only Tobu station names where a directional prefix is not separated from the rest by a hyphen in the romanised form, because the place name is treated as a single word, not a compound with a 'west' prefix.