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Imazatosuji Line

metro line in Osaka, Osaka prefecture, Japan

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 3, 2026
Entity authorityQ1066118 ↗
Source-derived summary

The Imazatosuji Line (今里筋線, Imazatosuji-sen) is a rapid transit line of Osaka Metro, running from Itakano Station in Higashiyodogawa-ku to Imazato Station in Higashinari-ku, all within Osaka city. Its official name is Rapid Electric Tramway Line No. 8 (高速電気軌道第8号線), and in MLIT publications, it is written as Line No. 8 (Imazatosuji Line) (8号線(今里筋線)). Station numbers are indicated by the letter I. The line first opened, at its present length, on Christmas Eve (24 December) 2006.

The line color on maps, station signs, and train livery is golden orange (柑子色, kōji-iro; Munsell code 5YR6.5/14). The line's symbol is a capital I on a solid golden-orange roundel; while all other lines use Parisine for their mark, the "I" of the Imazatosuji Line has serifs, similar to Verdana.

Overview

As with the Nagahori Tsurumi-ryokuchi Line, the Imazatosuji Line utilizes linear motor-driven trains with a cross-section 20% smaller than that of conventional subway cars, outfitted for driver-only operation.

The line runs north–south through the eastern part of Osaka city, underneath National Route 479 (Osaka Inner Loop Route), National Route 163, National Route 1 (Keihan National Highway), and Imazatosuji, intersecting subway lines radiating out from the city center, as well as the Keihan Main Line and the Katamachi Line (Gakkentoshi Line).

Apart from the JR Tōzai Line, this is the only other rail line to cross the Yodo River via tunnels (and the only subway line to do so).

Editorial summary

Begin with the source’s own compact description: “Imazatosuji Line” is metro line in Osaka, Osaka prefecture, Japan. The dossier treats that line as a proposition to test through Imazatosuji, Line and metro, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—2006—that can be checked directly. The linked authority record independently contributes the date 2006. For this dossier, Imazatosuji, Line and metro is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “metro line in Osaka, Osaka 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.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 3, 2026. The linked authority identifier is Q1066118. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2006.

Critical limits

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Source & attribution

This entry incorporates text from “Imazatosuji Line” 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.