Greek National Road 8a
trunk road in Greece
Greek National Road 8a (Greek: Εθνική Οδός 8a, abbreviated as EO8a) was a toll road in the Attica, Peloponnese and West Greece regions. It connected Athens with the cities of Corinth and Patras. It was built in the 1960s as a replacement for the old National Road 8 as the major route to the Peloponnese, and bypasses most towns. The National Road 8a has gradually been upgraded to a motorway, the A8. Since April 2017, the complete length of the A8 motorway has been operational.
The EO8a started east of Eleusis, where it branched off the old EO8 as a limited-access dual carriageway. Between Megara and Kineta the motorway passed through several tunnels. Its western end was the interchange with the A5 Ionia Odos, near Rio, northeast of Patras.
The total length of the route was 215 km. The eastern section, between Eleusis and Corinth, was part of European route E94.
This brief starts where responsible research should: with the source description of “Greek National Road 8a” as trunk road in Greece. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as trunk road in Greece. Its deeper value depends on whether names, dates, institutions and citations support that framing.
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 Jun 26, 2026. The linked authority identifier is Q478557. 2 of 2 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank. The first chronological checks are 2017.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. 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.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Greek National Road 8a”, its source revision and the description used here.
- Expand the search: follow Greek National Road 8a primary sources, Greek National Road 8a archive and Greek 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
- Which source most directly establishes the central claim about “Greek National Road 8a”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Greek National Road 8a” 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.