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Line H (Buenos Aires Underground)

metro line

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMay 24, 2026
Entity authorityQ1132660 ↗
Source-derived summary

Line H is a line of the Buenos Aires Underground. The first phase, between Plaza Once and Caseros, which opened on 18 October 2007, currently stretches over 8.8 km between Hospitales and Facultad de Derecho stations. It is the first entirely new line built in Buenos Aires since the opening of Line E on 20 June 1944.

According to projections, the line will stretch a total of about 11.85 km and will run from between Retiro to Sáenz once the remaining sections are constructed. It connects the southern part of the city with the north, improving traffic flow to the centre of the city. It is also designed to serve as a transversal line and provide cross-connections across all radial lines, mainly under the axis of Jujuy and Pueyrredón avenues.

Rolling stock

During its early years, Line H was served by a temporary fleet of refurbished and original vintage Siemens-Schuckert Orenstein & Koppel train sets originally introduced on line C, with electric current supplied by overhead lines. The cars featured 42 seats and 4 doors per side.

As the line was extended and passenger numbers increased, the rolling stock was replaced by new Alsom 300 Series units ordered from that company in 2012 in order to make up the entirety of the Line's rolling stock. The first 6 of the 120 new Alstom cars arrived In August 2015, with the remainder phased-in as the line has been extended.

Editorial summary

Begin with the source’s own compact description: “Line H (Buenos Aires Underground)” is metro line. The dossier treats that line as a proposition to test through Line, Buenos and Aires, not as a finished interpretation.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—2007, 1944, 2012, 2015—that can be checked directly. The linked authority record independently contributes the date 2007-10-18. For this dossier, Line, Buenos and Aires is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “metro line” 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

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated May 24, 2026. The linked authority identifier is Q1132660. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2007, 1944, 2012 and 2015.

Critical limits

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.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
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The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Line H (Buenos Aires Underground)”, its source revision and the description used here.
  2. Expand the search: follow Line H (Buenos Aires Underground) primary sources, Line H (Buenos Aires Underground) archive and Line 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.

Questions for further research

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  2. What terminology or title could unlock a more precise catalogue search?
  3. Which cited source is closest to the event, object or claim?
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Source & attribution

This entry incorporates text from “Line H (Buenos Aires Underground)” 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.