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Tōkai-Kanjō Expressway

road that circles the greater Nagoya area in Japan

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJan 22, 2026
Entity authorityQ7862675 ↗
Source-derived summary

The Tōkai-Kanjō Expressway (東海環状自動車道, Tōkaikanjō Jidōsha-dō) (lit. Tōkai Ring Expressway) is a toll road in the Tōkai region of Japan. It is owned and managed by Central Nippon Expressway Company.

Naming

Officially, the route is designated as National Route 475. On some signs, the expressway is represented in Japanese as 東海環状道; this is done to prevent confusion with the Tōkai-Hokuriku Expressway.

Although the road is named as an expressway, it is not recognized as a national expressway. Officially it is a national highway for motor vehicles only (一般国道の自動車専用道路, Ippan Kokudō no Jidōsha Senyō Dōro) (motor vehicles must have a displacement of at least 125 cc). However, the design standard of the Tōkai-Kanjō Expressway is similar to most national expressways.

Overview

Once completed, the expressway will form a 160 km ring road for the Tōkai Region. It is hoped that the expressway will reduce traffic congestion, link important industrial and manufacturing centers in the region, and facilitate access to Chubu International Airport and tourist areas in rural Gifu Prefecture.

Editorial summary

Begin with the source’s own compact description: “Tōkai-Kanjō Expressway” is road that circles the greater Nagoya area in Japan. The dossier treats that line as a proposition to test through Tōkai-Kanjō, Expressway and road, not as a finished interpretation.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current 168-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. For this dossier, Tōkai-Kanjō, Expressway and road is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “road that circles the greater Nagoya area in 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 Jan 22, 2026. The linked authority identifier is Q7862675.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. 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

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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  1. Establish the record: confirm the title “Tōkai-Kanjō Expressway”, its source revision and the description used here.
  2. Expand the search: follow Tōkai-Kanjō Expressway primary sources, Tōkai-Kanjō Expressway archive and Tōkai-Kanjō research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

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Source & attribution

This entry incorporates text from “Tōkai-Kanjō Expressway” 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.