1001 Smart Cities
🇦🇷 Buenos Aires

Buenos Aires Subte: CBTC Resignalling & Control Centre

🤖 AI-generated summary · ◆ 14 sourced claims · 🔎 Last verified

This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.

14 sourced claims on this page, none individually verified yet — turn on “Sources in the text” to see each one.

How this atlas is made · What “last verified” means · What “source-checked” means · The full record behind this page

✎ Corrected 27 Sep 2026 3 sources added. What changed →

The city bought the signalling to run a train every 2 minutes 15 seconds. It still runs one every 3 minutes, because there are not enough trains to fill the gaps.

Outcome📉 Scaled back
Evidence📊 Independent
what does this mean?The strongest source is an independent non-academic evaluation: an audit office, a government or EU review, or an NGO. It grades who did the looking — not how well the project went. All four grades →
Run bySubterráneos de Buenos Aires SE (SBASE), infrastructure and signalling; Emova Movilidad, operation and maintenance under concession
Scale🏙️ City-wide
FundingCity of Buenos Aires capital works through SBASE

Part of 1001 Smart Cities — 1,216 documented projects · 🏙️ 10 more in Buenos Aires · 🚌 Public transport guide · 🚲 Mobility projects

Argentina handed its 1913 metro to the city in 2012, and the city agency SBASE has since put Siemens Trainguard MT CBTC on three of six lines — H in 2016, C in 2020, D in 2024 — and in August 2026 awarded Line B's resignalling to China's CRRC, again at GoA2. It runs attended automatic train operation at GoA2: the driver stays in the cab and presses to depart, and no Subte line is driverless or certified to be. Two round-the-clock control rooms track train positions alongside traction power, ventilation and pumping, SBASE publishes a static GTFS feed and the city a real-time transit API, but the city's open-data portal now lists every GTFS and API dataset as suspended for review. A city audit found the Line D programme finished one of three planned stages, five months late, reaching a 3-minute headway but not the promised 2:15 — there are not enough trains. Ridership has not recovered either: an estimated 199.1 million trips in 2024.

Live 📅 since 2016

📊 Impact

Line D reached a 3-minute headway after resignalling, but the promised 2 minutes 15 seconds could not be verified in practice for lack of rolling stock, and one of three planned stages was completed, five months late — findings of an Auditoría General de la Ciudad report on the Line D works, reported April 2026.

🎓 Lesson

Signalling sets the floor on headway; the fleet sets the actual service. Buenos Aires bought the capacity to run a train every 2:15 and still runs one every 3.

🚲 MobilityPublic transportOpen dataSensors & IoT

Sources

↗ Railway Gazette / Metro Report — Siemens to resignal Buenos Aires Line DPublished 17 July 2020The load-bearing automation sentence: SBASE selected Siemens Mobility for CBTC on Line D, "with the CBTC supporting attended ATO to Grade of Automation 2". Also dates Trainguard MT on Line H to mid-2016 and its commissioning on Line C to February, and says it replaces an Alstom ATP in use since 2008, coordinated by a newly established operations control centre.
↗ Siemens Mobility press release — CBTC signalling for Buenos Aires Line D (17 July 2020)Supplier confirmation of the contract award date. Fetched and read: it states no contract value and no automation grade, and does not mention lines H or C — so it corroborates the award only, not the GoA2 claim.
↗ enelSubte — Line C reopens operating with the new CBTC signallingPublished 3 February 2020Trade press describing what GoA2 means in the cab: the driver presses a button and the train accelerates automatically to the next stop, and "can take control of the formation's operation at any moment". Dates the Line C reopening to 3 February 2020, replacing signalling in service since 1934, and states the 2:15 headway target depends on buying more trains — the line then had 13.
↗ enelSubte — Lack of trains and signalling problems behind Line D's poor service (22 May 2024)Three months after the Line D cutover: Siemens was still updating software for line-specific behaviour, causing speed restrictions at platforms and station approaches; the Alstom 100 units — about a third of the fleet — could not run until calibration finished; journey times up 25%. "La línea funciona con menos trenes que antes."
↗ Nueva Ciudad — Line D: cost overruns, delays and failures in key works (15 April 2026) archived copyCarries the impact figures from an Auditoría General de la Ciudad report: the signalling project "contemplaba tres etapas, pero solo una se completó (con cinco meses de atraso)"; the completed phase enabled a 3-minute frequency while the promised 2:15 cannot be verified because "falta material rodante suficiente"; works advanced "sin un plan de trabajo aprobado para su etapa final". FETCH FAILURE, flagged: the AGCBA report PDF itself returned unreadable binary to automated fetching, so these audit findings are verified at press level, not against the primary document. The 48.11% cost increase and nine-month extension in the same audit belong to the Palermo and Scalabrini Ortiz station works, not to the signalling, and are deliberately excluded here.
Show 9 more sourcesShow fewer
↗ Diario CEMBA — AGCBA detects irregularities and cost overruns in the Line D worksPublished 28 April 2026Second outlet independently confirming that the Auditoría General de la Ciudad report on the Line D works exists and its supervision findings — SBASE assigned a single works director without a full technical team or inspection plan.
↗ Buenos Aires city government — inside the Subte's monitoring centrePublished 5 October 2021Operator/authority description of the Puesto Central de Operaciones: two centres, one for lines A–E and one for line H, 26 staff, running "las 24 horas, los 365 días del año", monitoring train positions and signalling plus power, ventilation and pumping systems. No performance data is published from it — the entry claims none.
↗ Buenos Aires Data — Subte GTFS (published by SBASE)Published 10 May 2021 · updated 1 July 2026Static GTFS for the Subte, publisher Subterráneos de Buenos Aires (SBASE), licence CC-BY-2.5-AR. Checked 26 July 2026: the page carried the notice "Se informa a los usuarios de BA DATA que todos los datasets con Formato API y GTFS, están suspendidos. Se encuentran en revisión y corrección", with no date given.
↗ Buenos Aires Data — API Transporte Público (real-time feed)Published 10 May 2021 · updated 17 June 2026The real-time layer: for subte it provides static GTFS, forecastGTFS (trips currently running) and service alerts, licence CC-BY-2.5-AR, published by the Secretaría de Transporte y Obras Públicas; the portal states the API is used by Google and Moovit and is open to any developer on registration. Carries the same suspension notice as the GTFS dataset.
↗ Observatorio del Derecho a la Ciudad — passengers and fares on the Buenos Aires Subte, 2015–2025 (21 June 2025)Independent NGO report, drawing on the Centro de Estudios Metropolitanos and official statistics: 199,116,074 passengers in 2024, and March 2025 at "apenas el 54% de los pasajeros de marzo de 2019". Two different 2019 annual totals circulate (about 325 and about 341 million) and neither is used here. FETCH FAILURE, flagged: the official Instituto de Estadística y Censos series at estadisticaciudad.gob.ar looped on a host redirect and could not be read to settle the 2019 figure.
↗ enelSubte — Chinese firm CRRC pre-awarded the new Line B trainsPublished 10 June 2025Establishes the limit of the rollout: CBTC operates on lines C, D and H only, no installation has been announced for Line B, and the new Line B trains must suit the existing ATP while being "prepared for a possible conversion to CBTC with ATO in GoA2" — the city itself specifies GoA2 as the ceiling.
↗ enelSubte — Line B resignalling awarded to CRRC (25 Aug 2026)SBASE awarded Zhuzhou CRRC Times Electric, the CRRC unit building Line B's 29 new trains, a contract to replace Line B's ATP with CBTC at GoA2; CBTC to enter service 20 months after works start with 17 trains, full conversion at 34 months. Also dates CBTC on H (July 2016), C (February 2020) and D (March 2024), all Siemens Trainguard MT.
↗ Ley 4472 (2012) — Digesto Jurídico de la Ciudad (text)Published 28 December 2012Official digest entry for Ley 4472: sanctioned 19 December 2012, published in the Boletín Oficial 28 December 2012. The law has the City assume the Subte public service and designates SBASE as the authority for infrastructure, maintenance and the operating control systems. Replaces the dead cedom.gov.ar URL. (Full text PDF: digesto.buenosaires.gob.ar/documento/download/Ley%20Ciudad-4472__958d201cd37ba4daaed819996f963099cc2ad0e6.pdf)
↗ Buenos Aires city government — Emova takes over operation and maintenance (30 Nov 2021)The city announces that Emova Movilidad S.A., of the Benito Roggio Transporte group, takes over Subte and Premetro operation and maintenance on 1 December 2021 for 12 years, extendable by three, replacing a 20-year concession. Readable replacement for the Página/12 source.

📅 How old is the evidence?

Two clocks, kept apart: when this entry’s sources were published, and what has happened to its record in the atlas. Documented span: since 2016. 14 of 14 sources carry a publication date, from 28 December 2012 to 25 August 2026.

When the sources were published

  1. Gobierno de la Ciudad de Buenos Aires — Digesto Jurídico · city governmentLey 4472 (2012) — Digesto Jurídico de la Ciudad (text)
  2. enelSubte · pressenelSubte — Line C reopens operating with the new CBTC signalling
  3. Railway Gazette International · pressRailway Gazette / Metro Report — Siemens to resignal Buenos Aires Line D
  4. Siemens Mobility · vendorSiemens Mobility press release — CBTC signalling for Buenos Aires Line D (17 July 2020)
  5. Gobierno de la Ciudad de Buenos Aires · city governmentBuenos Aires Data — Subte GTFS (published by SBASE) · updated 1 July 2026
  6. Gobierno de la Ciudad de Buenos Aires · city governmentBuenos Aires Data — API Transporte Público (real-time feed) · updated 17 June 2026
  7. Gobierno de la Ciudad de Buenos Aires · city governmentBuenos Aires city government — inside the Subte's monitoring centre
  8. Gobierno de la Ciudad de Buenos Aires · city governmentBuenos Aires city government — Emova takes over operation and maintenance (30 Nov 2021)
Show 6 more dated sourcesShow fewer
  1. enelSubte · pressenelSubte — Lack of trains and signalling problems behind Line D's poor service (22 May 2024)
  2. enelSubte · pressenelSubte — Chinese firm CRRC pre-awarded the new Line B trains
  3. Observatorio del Derecho a la Ciudad · ngoObservatorio del Derecho a la Ciudad — passengers and fares on the Buenos Aires Subte, 2015–2025 (21 June 2025)
  4. Nueva Ciudad · pressNueva Ciudad — Line D: cost overruns, delays and failures in key works (15 April 2026)
  5. Diario CEMBA · pressDiario CEMBA — AGCBA detects irregularities and cost overruns in the Line D works
  6. enelSubte · pressenelSubte — Line B resignalling awarded to CRRC (25 Aug 2026)

Every source, with links ↑

What happened to this record

  1. Entered the record
  2. 3 sources added
  3. Sources last read

Every revision, permanent →

Show your work What this page rests on and what it can’t tell you · all 14 claims with their sources · the forensic record

Evidence file · public beta 14 addressable claims, 14 source dossiers, one permanent baseline. The file is unreviewed — an AI-assisted structural migration, not a human or expert endorsement. Every revision keeps a permanent copy under revision history.

Inspect the claims, one by one — verbatim text, sources and caveats for all 14

The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.

Claim 1 clm-b63266183af253d9 quantitative
Argentina handed its 1913 metro to the city in 2012
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
Ley 4472, sanctioned in December 2012, has the City assume the Subte public service and take over assets held under national control; the Observatorio report dates the network's opening to 1913.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Ley 4472 (2012) — Digesto Jurídico de la Ciudad (text)
  2. Observatorio del Derecho a la Ciudad — passengers and fares on the Buenos Aires Subte, 2015–2025 (21 June 2025)
Claim 2 clm-e5f61a65494e3645 quantitative
the city agency SBASE has since put Siemens Trainguard MT CBTC on three of six lines — H in 2016, C in 2020, D in 2024
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
enelSubte (Aug 2026) dates CBTC on Line H to July 2016, Line C to February 2020 and Line D to March 2024, all Siemens Trainguard MT; Railway Gazette confirms SBASE as the contracting authority.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. enelSubte — Line B resignalling awarded to CRRC (25 Aug 2026)
  2. Railway Gazette / Metro Report — Siemens to resignal Buenos Aires Line D
Claim 3 clm-e8743cf5b9dc2b57 quantitative
in August 2026 awarded Line B's resignalling to China's CRRC, again at GoA2
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
enelSubte reports, from an official document, the award to Zhuzhou CRRC Times Electric of a contract replacing Line B's ATP with CBTC at GoA2.
Caveat
The contract calls for CBTC to start 20 months after works begin and to be complete at 34 months; it is not yet in service.

Sources carrying this claim

  1. enelSubte — Line B resignalling awarded to CRRC (25 Aug 2026)
Claim 4 clm-078334afebcb3aae quantitative
It runs attended automatic train operation at GoA2: the driver stays in the cab and presses to depart
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
Railway Gazette states the CBTC supports attended ATO to GoA2; enelSubte describes the driver pressing a button to start each run and being able to take over at any moment.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Railway Gazette / Metro Report — Siemens to resignal Buenos Aires Line D
  2. enelSubte — Line C reopens operating with the new CBTC signalling
Claim 5 clm-41ab108b03eec2db descriptive
no Subte line is driverless or certified to be
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
Every CBTC specification on record — Lines H, C and D, the Line B award and the new Line B trains — is GoA2, which keeps a driver in the cab; no source names a higher grade for any line.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Railway Gazette / Metro Report — Siemens to resignal Buenos Aires Line D
  2. enelSubte — Line B resignalling awarded to CRRC (25 Aug 2026)
  3. enelSubte — Chinese firm CRRC pre-awarded the new Line B trains
Claim 6 clm-69c78697374174f4 descriptive
Two round-the-clock control rooms track train positions alongside traction power, ventilation and pumping
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The city's 2021 visit report describes two operations centres (lines A–E and line H), running 24/365, tracking train positions and power, ventilation and pumping systems.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Buenos Aires city government — inside the Subte's monitoring centre
Claim 7 clm-6bb446f3160ca55a descriptive
SBASE publishes a static GTFS feed and the city a real-time transit API
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The open-data portal lists the Subte GTFS with SBASE as the responsible publisher, and the Transporte Público API (static GTFS, forecastGTFS and alerts for subte) under the city's transport secretariat.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Buenos Aires Data — Subte GTFS (published by SBASE)
  2. Buenos Aires Data — API Transporte Público (real-time feed)
Claim 8 clm-2cb9493b90c29304 descriptive
the city's open-data portal now lists every GTFS and API dataset as suspended for review
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
Both dataset pages carry the portal's notice that all API and GTFS datasets are suspended while under review and correction; no date for the suspension or its end is given.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Buenos Aires Data — Subte GTFS (published by SBASE)
  2. Buenos Aires Data — API Transporte Público (real-time feed)
Claim 9 clm-f89b0c45f47fd408 quantitative
A city audit found the Line D programme finished one of three planned stages, five months late, reaching a 3-minute headway but not the promised 2:15 — there are not enough trains
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
Nueva Ciudad reports the Auditoría General de la Ciudad's findings on the signalling project; CEMBA independently confirms the audit report on the Line D works.
Caveat
Known through press reports of the audit; the audit report itself could not be read here.

Sources carrying this claim

  1. Nueva Ciudad — Line D: cost overruns, delays and failures in key works (15 April 2026)
  2. Diario CEMBA — AGCBA detects irregularities and cost overruns in the Line D works
Claim 10 clm-cddfb73cef46fd18 quantitative
Ridership has not recovered either: an estimated 199.1 million trips in 2024
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The Observatorio report gives the 2024 annual estimate of 199,116,074 passengers and notes March 2025 at 54% of March 2019.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Observatorio del Derecho a la Ciudad — passengers and fares on the Buenos Aires Subte, 2015–2025 (21 June 2025)
Claim 11 clm-a19f31b4f9ed3895 quantitative
Line D reached a 3-minute headway after resignalling, but the promised 2 minutes 15 seconds could not be verified in practice for lack of rolling stock, and one of three planned stages was completed, five months late
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
Nueva Ciudad reports these findings from the Auditoría General de la Ciudad's report on the Line D works.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Nueva Ciudad — Line D: cost overruns, delays and failures in key works (15 April 2026)
Claim 12 clm-f8022cc0652fa23a quantitative
findings of an Auditoría General de la Ciudad report on the Line D works, reported April 2026
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
Nueva Ciudad (15 April 2026) and CEMBA (28 April 2026) both report the AGCBA report on the Line D works.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Nueva Ciudad — Line D: cost overruns, delays and failures in key works (15 April 2026)
  2. Diario CEMBA — AGCBA detects irregularities and cost overruns in the Line D works
Claim 13 clm-bbcba6cf91ee2509 descriptive
Signalling sets the floor on headway; the fleet sets the actual service.
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
enelSubte's 2020 report on Line C already said frequency with CBTC depends on how many trains are put into service; the Line D audit found the same limit in practice.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. enelSubte — Line C reopens operating with the new CBTC signalling
  2. Nueva Ciudad — Line D: cost overruns, delays and failures in key works (15 April 2026)
Claim 14 clm-23c98f7d8d417c63 quantitative
Buenos Aires bought the capacity to run a train every 2:15 and still runs one every 3.
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
Railway Gazette gives the contracted 135-second headway; the audit as reported found 3 minutes achieved.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Railway Gazette / Metro Report — Siemens to resignal Buenos Aires Line D
  2. Nueva Ciudad — Line D: cost overruns, delays and failures in key works (15 April 2026)
Forensic record — source dossiers, gaps, hashes and the exact revision this page renders

This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.

unreviewed Revision 2026-09-27-popular-uplift effective 2026-09-27 · created 2026-09-27

Awaiting operator and domain-expert review; publication of this revision implies neither.

sha256:015950dba3e30e85aaed4ea9007b9a456a1e19e40927d40489577f7b7460ef06
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
14
of 14 claims mapped
14
source dossiers
14
publication dates recorded
1
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
Subterráneos de Buenos Aires SE (SBASE), infrastructure and signalling; Emova Movilidad, operation and maintenance under concession
Actor types
utility, private
Funding model
public
Funding description
City of Buenos Aires capital works through SBASE
Cost
Not recorded
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

14 source dossiers

Railway Gazette / Metro Report — Siemens to resignal Buenos Aires Line D railwaygazette.com · 4 linked claims

Open original source ↗

Stable source ID
src-11e5f5063586b54d
Publisher
Name not classified · railwaygazette.com
Type / language
web-page · language not classified
Published
2020-07-17
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

The load-bearing automation sentence: SBASE selected Siemens Mobility for CBTC on Line D, "with the CBTC supporting attended ATO to Grade of Automation 2". Also dates Trainguard MT on Line H to mid-2016 and its commissioning on Line C to February, and says it replaces an Alstom ATP in use since 2008, coordinated by a newly established operations control centre.

Descriptive only — not page/paragraph exact
Claims linked
Siemens Mobility press release — CBTC signalling for Buenos Aires Line D (17 July 2020) press.siemens.com · background

Open original source ↗

Stable source ID
src-09db5a752fa1950f
Publisher
Name not classified · press.siemens.com
Type / language
web-page · language not classified
Published
2020-07-17
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Supplier confirmation of the contract award date. Fetched and read: it states no contract value and no automation grade, and does not mention lines H or C — so it corroborates the award only, not the GoA2 claim.

Descriptive only — not page/paragraph exact
Claims linked
Background source; no baseline claim points here
enelSubte — Line C reopens operating with the new CBTC signalling enelsubte.com · 2 linked claims

Open original source ↗

Stable source ID
src-d6b1975dd46f9423
Publisher
Name not classified · enelsubte.com
Type / language
web-page · language not classified
Published
2020-02-03
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Trade press describing what GoA2 means in the cab: the driver presses a button and the train accelerates automatically to the next stop, and "can take control of the formation's operation at any moment". Dates the Line C reopening to 3 February 2020, replacing signalling in service since 1934, and states the 2:15 headway target depends on buying more trains — the line then had 13.

Descriptive only — not page/paragraph exact
Claims linked
enelSubte — Lack of trains and signalling problems behind Line D's poor service (22 May 2024) enelsubte.com · background

Open original source ↗

Stable source ID
src-3ee120497a6cb72b
Publisher
Name not classified · enelsubte.com
Type / language
web-page · language not classified
Published
2024-05-22
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Three months after the Line D cutover: Siemens was still updating software for line-specific behaviour, causing speed restrictions at platforms and station approaches; the Alstom 100 units — about a third of the fleet — could not run until calibration finished; journey times up 25%. "La línea funciona con menos trenes que antes."

Descriptive only — not page/paragraph exact
Claims linked
Background source; no baseline claim points here
Nueva Ciudad — Line D: cost overruns, delays and failures in key works (15 April 2026) nueva-ciudad.com.ar · 5 linked claims

Open original source ↗

Stable source ID
src-1d37db47cf878087
Publisher
Name not classified · nueva-ciudad.com.ar
Type / language
web-page · language not classified
Published
2026-04-15
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
Archive
Open archived copy ↗ · 2026-05-21
Content hash
No captured content hash
Locator
Open the recorded source note

Carries the impact figures from an Auditoría General de la Ciudad report: the signalling project "contemplaba tres etapas, pero solo una se completó (con cinco meses de atraso)"; the completed phase enabled a 3-minute frequency while the promised 2:15 cannot be verified because "falta material rodante suficiente"; works advanced "sin un plan de trabajo aprobado para su etapa final". FETCH FAILURE, flagged: the AGCBA report PDF itself returned unreadable binary to automated fetching, so these audit findings are verified at press level, not against the primary document. The 48.11% cost increase and nine-month extension in the same audit belong to the Palermo and Scalabrini Ortiz station works, not to the signalling, and are deliberately excluded here.

Descriptive only — not page/paragraph exact
Claims linked
Diario CEMBA — AGCBA detects irregularities and cost overruns in the Line D works cemba.com.ar · 2 linked claims

Open original source ↗

Stable source ID
src-2b0548d490e8414f
Publisher
Name not classified · cemba.com.ar
Type / language
web-page · language not classified
Published
2026-04-28
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Second outlet independently confirming that the Auditoría General de la Ciudad report on the Line D works exists and its supervision findings — SBASE assigned a single works director without a full technical team or inspection plan.

Descriptive only — not page/paragraph exact
Claims linked
Buenos Aires city government — inside the Subte's monitoring centre buenosaires.gob.ar · 1 linked claim

Open original source ↗

Stable source ID
src-29ed425464af202a
Publisher
Name not classified · buenosaires.gob.ar
Type / language
web-page · language not classified
Published
2021-10-05
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Operator/authority description of the Puesto Central de Operaciones: two centres, one for lines A–E and one for line H, 26 staff, running "las 24 horas, los 365 días del año", monitoring train positions and signalling plus power, ventilation and pumping systems. No performance data is published from it — the entry claims none.

Descriptive only — not page/paragraph exact
Claims linked
Buenos Aires Data — Subte GTFS (published by SBASE) data.buenosaires.gob.ar · 2 linked claims

Open original source ↗

Stable source ID
src-bbddec0b269cde5b
Publisher
Name not classified · data.buenosaires.gob.ar
Type / language
web-page · language not classified
Published
2021-05-10
Updated
2026-07-01
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
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Static GTFS for the Subte, publisher Subterráneos de Buenos Aires (SBASE), licence CC-BY-2.5-AR. Checked 26 July 2026: the page carried the notice "Se informa a los usuarios de BA DATA que todos los datasets con Formato API y GTFS, están suspendidos. Se encuentran en revisión y corrección", with no date given.

Descriptive only — not page/paragraph exact
Claims linked
Buenos Aires Data — API Transporte Público (real-time feed) data.buenosaires.gob.ar · 2 linked claims

Open original source ↗

Stable source ID
src-45839c2963435014
Publisher
Name not classified · data.buenosaires.gob.ar
Type / language
web-page · language not classified
Published
2021-05-10
Updated
2026-06-17
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
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No archived copy linked
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The real-time layer: for subte it provides static GTFS, forecastGTFS (trips currently running) and service alerts, licence CC-BY-2.5-AR, published by the Secretaría de Transporte y Obras Públicas; the portal states the API is used by Google and Moovit and is open to any developer on registration. Carries the same suspension notice as the GTFS dataset.

Descriptive only — not page/paragraph exact
Claims linked
Observatorio del Derecho a la Ciudad — passengers and fares on the Buenos Aires Subte, 2015–2025 (21 June 2025) observatoriociudad.org · 2 linked claims

Open original source ↗

Stable source ID
src-f4f7798b7d29be36
Publisher
Name not classified · observatoriociudad.org
Type / language
web-page · language not classified
Published
2025-06-21
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
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Independent NGO report, drawing on the Centro de Estudios Metropolitanos and official statistics: 199,116,074 passengers in 2024, and March 2025 at "apenas el 54% de los pasajeros de marzo de 2019". Two different 2019 annual totals circulate (about 325 and about 341 million) and neither is used here. FETCH FAILURE, flagged: the official Instituto de Estadística y Censos series at estadisticaciudad.gob.ar looped on a host redirect and could not be read to settle the 2019 figure.

Descriptive only — not page/paragraph exact
Claims linked
enelSubte — Chinese firm CRRC pre-awarded the new Line B trains enelsubte.com · 1 linked claim

Open original source ↗

Stable source ID
src-79ba5d51049b8c54
Publisher
Name not classified · enelsubte.com
Type / language
web-page · language not classified
Published
2025-06-10
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
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Establishes the limit of the rollout: CBTC operates on lines C, D and H only, no installation has been announced for Line B, and the new Line B trains must suit the existing ATP while being "prepared for a possible conversion to CBTC with ATO in GoA2" — the city itself specifies GoA2 as the ceiling.

Descriptive only — not page/paragraph exact
Claims linked
enelSubte — Line B resignalling awarded to CRRC (25 Aug 2026) enelsubte.com · 3 linked claims

Open original source ↗

Stable source ID
src-5fb5e0bf0ebfd8f7
Publisher
Name not classified · enelsubte.com
Type / language
web-page · language not classified
Published
2026-08-25
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
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SBASE awarded Zhuzhou CRRC Times Electric, the CRRC unit building Line B's 29 new trains, a contract to replace Line B's ATP with CBTC at GoA2; CBTC to enter service 20 months after works start with 17 trains, full conversion at 34 months. Also dates CBTC on H (July 2016), C (February 2020) and D (March 2024), all Siemens Trainguard MT.

Descriptive only — not page/paragraph exact
Claims linked
Ley 4472 (2012) — Digesto Jurídico de la Ciudad (text) digesto.buenosaires.gob.ar · 1 linked claim

Open original source ↗

Stable source ID
src-b5243fe702839ba4
Publisher
Name not classified · digesto.buenosaires.gob.ar
Type / language
web-page · language not classified
Published
2012-12-28
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
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Official digest entry for Ley 4472: sanctioned 19 December 2012, published in the Boletín Oficial 28 December 2012. The law has the City assume the Subte public service and designates SBASE as the authority for infrastructure, maintenance and the operating control systems. Replaces the dead cedom.gov.ar URL. (Full text PDF: digesto.buenosaires.gob.ar/documento/download/Ley%20Ciudad-4472__958d201cd37ba4daaed819996f963099cc2ad0e6.pdf)

Descriptive only — not page/paragraph exact
Claims linked
Buenos Aires city government — Emova takes over operation and maintenance (30 Nov 2021) buenosaires.gob.ar · background

Open original source ↗

Stable source ID
src-74f5dbc91f4bdb43
Publisher
Name not classified · buenosaires.gob.ar
Type / language
web-page · language not classified
Published
2021-11-30
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
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No archived copy linked
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No captured content hash
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Open the recorded source note

The city announces that Emova Movilidad S.A., of the Benito Roggio Transporte group, takes over Subte and Premetro operation and maintenance on 1 December 2021 for 12 years, extendable by three, replacing a 20-year concession. Readable replacement for the Página/12 source.

Descriptive only — not page/paragraph exact
Claims linked
Background source; no baseline claim points here
Known limits of this file
  • Publisher names and source languages have not yet been classified; domains are recorded without guessing.
  • Existing source notes are descriptive locators, not page- or paragraph-exact citations.
  • A missing archive, publication date or content hash is shown as null rather than inferred.
  • The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim.

Continue exploring

Compare this project

🇨🇦 Toronto Subway Automatic Train Control Resignalling · Toronto Two honest GoA2 retrofits: Toronto's 2022 upgrade dropped the guard; Buenos Aires's driver still presses to depart on three CBTC lines. 🇧🇷 São Paulo Metro: the two unattended lines, ten years apart · São Paulo São Paulo has run a line with nobody aboard since 2010; Buenos Aires never claimed above GoA2, and its limit is trains, not signalling. 🇺🇸 Washington Metro's automatic train operation, switched off for 15 years · Washington D.C. Washington's automation spent 15 years switched off and returned with the operator in the cab — where Buenos Aires's has been since 2016.

Explore the wider context

🔑 Your Smart City Is Owned by Someone Else📖 CBTC (communications-based train control)📖 GTFS (General Transit Feed Specification)📖 Open data
📎 Cite this project

1001 Smart Cities (2026). “Buenos Aires Subte: CBTC Resignalling & Control Centre” — Buenos Aires, Argentina. The Smart City Atlas. https://1001smartcities.org/projects/buenos-aires-subte-signalling/ (last verified 2026-09-27). Data: CC BY 4.0.

The underlying data is free to reuse with attribution — see the open data page.

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