Tōzai Line (Sendai)
Sendai Subway system operated by the Sendai City Transportation Bureau in Sendai, Miyagi prefecture, Japan

The Tōzai Line (東西線, Tōzai-sen) is one of the two lines of the Sendai Subway system operated by the Sendai City Transportation Bureau in the city of Sendai, Japan. It opened on 6 December 2015. The Tozai Line uses linear motor propulsion.
Stations
All stations are located in Sendai.
From the start of operations on the line, nine out of the line's 13 stations are staffed and operated by sub-contracted employees from the security company Alsok. Operations at Omachi Nishi-koen Station will also be sub-contracted to Alsok from fiscal 2018, leaving only the two termini and Sendai Station staffed by Sendai City Transportation Bureau employees.
Rolling stock
Services are operated by a fleet of 15 four-car Sendai Subway 2000 series electric trains manufactured by Kinki Sharyo.
Passenger statistics
According to forecasts published by Sendai City Transportation Bureau in August 2012, the line is expected initially to be used by an average of approximately 80,000 passengers daily (boarding passengers only).
History
The line opened on 6 December 2015, with a departure ceremony for the first train at Arai Station.
Begin with the source’s own compact description: “Tōzai Line (Sendai)” is sendai Subway system operated by the Sendai City Transportation Bureau in Sendai, Miyagi prefecture, Japan. The dossier treats that line as a proposition to test through Tōzai, Line and Sendai, not as a finished interpretation.
Why this record matters
The phrase “sendai Subway system operated by the Sendai City Transportation Bureau in Sendai, Miyagi prefecture, Japan” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Apr 12, 2026. The linked authority identifier is Q7450186. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2015, 2018, 2000 and 2012.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
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Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Tōzai Line (Sendai)”, its source revision and the description used here.
- Expand the search: follow Tōzai Line (Sendai) primary sources, Tōzai Line (Sendai) archive and Tōzai research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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Search terms from this dossier
This entry incorporates text from “Tōzai Line (Sendai)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.