Permanent project revision

Metrobus: BRT lanes laid over the existing bus network

Revision 2026-08-20-evidence-baseline · effective 2026-07-26

Superseded. A later revision exists: 2026-08-22-cross-city-sourcing →

unreviewed

Created the first structured Evidence Passport with 6 claims and 12 source dossiers.

sha256:82414fbc22376ebf300468322062667a04b06d4f984884f11c3400744b2611e9

All revisions → Current entity page →

Change set

add /evidencePassport — Added claim-level evidence mapping and source dossiers.
add /revisionHistory — Established a permanent, hash-addressed baseline revision.

6: of 6 claims mapped
12: source dossiers
8: publication dates recorded
0: archives linked
0: exact locators
0: content captures hashed

Claims, one by one

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-5a16d3671fac7d4a quantitative

Buenos Aires opened its first Metrobus corridor on Avenida Juan B. Justo on 31 May 2011

Published field: snippet · verbatim
Mapping: mapped · no interpretation or interpolation added by this passport
What the mapping says: The 31 May 2011 piece announces the launch of the first corridor.
Caveat: Written by a promoter of the corridor, which is why the entry labels this strand 'promoter figures only'.

Sources carrying this claim

ITDP — Metrobús, Argentina's first BRT system, launches in Buenos Aires (31 May 2011)

Claim 2 clm-a67c72de33cc9d98 descriptive

the city's own audit office found the first corridor ended up with open stations and effectively a priority-lane system rather than the closed-station BRT specified

Published field: snippet · verbatim
Mapping: mapped · no interpretation or interpolation added by this passport
What the mapping says: The audit office's own title puts the question, and the report behind it is the source of the finding the entry states.
Caveat: No claim-specific caveat recorded

Sources carrying this claim

El Auditor / AGCBA — ¿Un verdadero Metrobus o tan solo un sistema de carriles exclusivos?

Claim 3 clm-1f44a6d51f840b2c quantitative

Vehicle tracking belongs to the national Ministry of Transport, which reads bus positions from SUBE farecard validators aboard some 18,000 AMBA buses

Published field: snippet · verbatim
Mapping: mapped · no interpretation or interpolation added by this passport
What the mapping says: The national ministry's own announcement describes the bus monitoring system built on the SUBE validators, which is the jurisdictional point the entry makes.
Caveat: No claim-specific caveat recorded

Sources carrying this claim

Ministerio de Transporte (Argentina) — Nuevo sistema de monitoreo de colectivos

Claim 4 clm-c086128cf00bc4a9 quantitative

As of 1 July 2026 the city's GTFS and API datasets are suspended, "en revisión y corrección"

Published field: snippet · verbatim
Mapping: mapped · no interpretation or interpolation added by this passport
What the mapping says: The dataset page carries the 1 July 2026 update stamp beside the notice the entry quotes.
Caveat: No claim-specific caveat recorded

Sources carrying this claim

Buenos Aires Data — Colectivos: GTFS (dataset page)

Claim 5 clm-210e7ee81bfa33c9 quantitative

ITDP reports the 9 de Julio crossing fell from over 40 minutes to about 14

Published field: impact · verbatim
Mapping: mapped · no interpretation or interpolation added by this passport
What the mapping says: The entry cites ITDP's Buenos Aires page for the travel-time figures. The page as fetched on 20 August 2026 is a transformations overview whose text did not expose the passage carrying the figure, so no locator is recorded.
Caveat: Promoter figure; the entry says plainly that no independent before-and-after evaluation was found.

Sources carrying this claim

ITDP — Buenos Aires city transformations page

Claim 6 clm-f7502bd4cec7843b descriptive

the jurisdiction that runs the buses also owns their data

Published field: lesson · verbatim
Mapping: mapped · no interpretation or interpolation added by this passport
What the mapping says: The monitoring system is announced by the national ministry, not the city — the ownership split the lesson compresses.
Caveat: No claim-specific caveat recorded

Sources carrying this claim

Ministerio de Transporte (Argentina) — Nuevo sistema de monitoreo de colectivos

Source dossiers and revision state

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 2026-08-20-evidence-baseline effective 2026-07-26 · created 2026-08-20

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

sha256:82414fbc22376ebf300468322062667a04b06d4f984884f11c3400744b2611e9

Revision history → Permanent version link → Machine-readable record → Evidence Constitution →

6: of 6 claims mapped
12: source dossiers
8: publication dates recorded
0: archives linked
0: exact locators
0: content captures hashed

Governance facts carried by the record

Operator: Gobierno de la Ciudad de Buenos Aires (Secretaría de Transporte y Obras Públicas); bus services run by privately held, nationally regulated concessionaires
Actor types: city-government, private
Funding model: public
Funding description: City of Buenos Aires public works budget. The World Bank financed the separate Metrobus on RN3 in La Matanza, Province of Buenos Aires — not the city's corridors.
Cost: Not recorded
Ownership: Not recorded
Decision rights: Not recorded
Exit conditions: Not recorded

12 source dossiers

ITDP — Metrobús, Argentina's first BRT system, launches in Buenos Aires (31 May 2011) itdp.org · 1 linked claim

Open original source ↗

Stable source ID: src-d85854994c384969
Publisher: Name not classified · itdp.org
Type / language: web-page · language not classified
Published: 2011-05-31
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Dated launch post for the Juan B. Justo corridor; supports the 31 May 2011 start date and the 'first BRT in Argentina' framing, which is ITDP's characterisation, not asserted here.
Descriptive only — not page/paragraph exact
Claims linked: clm-5a16d3671fac7d4a

ITDP — Buenos Aires city transformations page itdp.org · 1 linked claim

Open original source ↗

Stable source ID: src-68c3307a2bb8a45b
Publisher: Name not classified · itdp.org
Type / language: web-page · language not classified
Published: 2015-07-22
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Fetched. Source of the corridor lengths (9 de Julio 3.5 km, Sur 23 km) and the promoter travel-time and ridership figures: '200,000 passengers per day', crossing time 'over 40 minutes to average of 14 minutes', Sur '20 percent commute time reduction'. Advocacy NGO restating operator data — graded official, not independent. Contains no criticism.
Descriptive only — not page/paragraph exact
Claims linked: clm-210e7ee81bfa33c9

C40 Cities100 — Buenos Aires: Small Changes Lead to Efficient Bus Service (Oct 2015) c40.org · background

Open original source ↗

Stable source ID: src-5bcd6bc605e9e90e
Publisher: Name not classified · c40.org
Type / language: web-page · language not classified
Published: Not recorded
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Fetched. The load-bearing source for the design choice: the city 'transforms existing bus routes into highly efficient dedicated BRT lanes' while the federal government retains control of public transport operations; 50.5 km built within four years.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Gobierno de la Ciudad de Buenos Aires — Red de Metrobus buenosaires.gob.ar · background

Open original source ↗

Stable source ID: src-ac27a376db119f79
Publisher: Name not classified · buenosaires.gob.ar
Type / language: web-page · language not classified
Published: Not recorded
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Fetched (archived GCBA path). States 'La Ciudad cuenta con 10 corredores de Metrobus activos' and lists them: Bajo, Bajo 2, San Martín, Norte, Norte 2, AU 25 de Mayo, Sur, 9 de Julio, Juan B. Justo, Alberdi-Directorio. The live path buenosaires.gob.ar/movilidad/metrobus returned HTTP 404 to automated fetch; the Alberdi-Directorio press release returned 301 then HTTP 500.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

El Auditor / AGCBA — ¿Un verdadero Metrobus o tan solo un sistema de carriles exclusivos? elauditor.info · 1 linked claim

Open original source ↗

Stable source ID: src-fbcfb9bd5ed4c7fb
Publisher: Name not classified · elauditor.info
Type / language: web-page · language not classified
Published: 2014-03-13
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Fetched. City audit office report on the Juan B. Justo corridor, approved December 2013: auditors found a 'modificación sustantiva en el objetivo de la obra' and that jurisdictional conflict caused 'las estaciones terminen siendo abiertas en lugar de cerradas', turning the BRT into an exclusive-lane system. Also records a 28.71% construction cost increase from unforeseen Arroyo Maldonado works.
Descriptive only — not page/paragraph exact
Claims linked: clm-a67c72de33cc9d98

Buenos Aires Data — Colectivos: GTFS (dataset page) data.buenosaires.gob.ar · 1 linked claim

Open original source ↗

Stable source ID: src-d4c8f77733311031
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: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Fetched. Carries the suspension notice verbatim: '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.' Last modified 1 July 2026. The companion API page (data.buenosaires.gob.ar/dataset/api-transporte-publico) carries the same notice and describes real-time positions for bus, subway and rail.
Descriptive only — not page/paragraph exact
Claims linked: clm-c086128cf00bc4a9

Ministerio de Transporte (Argentina) — Nuevo sistema de monitoreo de colectivos argentina.gob.ar · 2 linked claims

Open original source ↗

Stable source ID: src-8826a3e970abece9
Publisher: Name not classified · argentina.gob.ar
Type / language: web-page · language not classified
Published: 2019-01-22
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Fetched. National, not municipal: 'Los mismos emiten información en tiempo real permitiendo ver desde las oficinas de SUBE, si las unidades cumplen frecuencias, paradas y recorridos.' 10,000 onboard validators renewed; +18,000 buses monitored across the AMBA. This is the source for the statement that fleet telemetry does not sit with the city.
Descriptive only — not page/paragraph exact
Claims linked: clm-1f44a6d51f840b2c
clm-f7502bd4cec7843b

Infobae — Fotomultas en la Ciudad de Buenos Aires (9 April 2026) infobae.com · background

Open original source ↗

Stable source ID: src-d54d63a21a571a3c
Publisher: Name not classified · infobae.com
Type / language: web-page · language not classified
Published: 2026-04-09
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Fetched. 224 active fixed cameras in CABA; the published fine schedule includes 'Estacionar en carriles exclusivos o del Metrobus'. Note the asymmetry: the city's open dataset of fixed cameras (data.buenosaires.gob.ar/dataset/camaras-fijas-control-vehicular, CC-BY-2.5-AR, updated 23 July 2025) explicitly excludes the exclusive-lane cameras from publication.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Infobae — La Justicia frenó tala de árboles en la 9 de Julio (13 Feb 2013) infobae.com · background

Open original source ↗

Stable source ID: src-ddfaa736f3c3c21d
Publisher: Name not classified · infobae.com
Type / language: web-page · language not classified
Published: 2013-02-13
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Fetched. Judge Guillermo Scheiber (Contencioso Administrativo y Tributario) ordered the city to 'suspender inmediatamente cualquier actividad que implique la poda, trasplante, remoción o destrucción del arbolado público' on the Metrobus-affected stretch, and asked whether an environmental impact study had been done. A companion Infobae piece of 9 Feb 2013 puts the number at about 305 trees of the avenue's 1,440.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

World Bank — Better public transport for Argentina (results brief, 3 Feb 2021) worldbank.org · background

Open original source ↗

Stable source ID: src-c26ce872951bbd9e
Publisher: Name not classified · worldbank.org
Type / language: web-page · language not classified
Published: 2021-02-03
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Fetched. Used here to mark the scope boundary: the Bank-financed corridor is 'BRT R3 Juan Manuel de Rosas' in La Matanza, Province of Buenos Aires, benefiting 240,000 users — its '53 percent reduction in travel time' and '105 percent' speed increase belong to that corridor and are deliberately NOT attributed to the city's network.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Energía y Transporte — Colectivos y trenes del AMBA: cuántos pasajeros perdieron el año pasado (2026) energiaytransporte.com.ar · background

Open original source ↗

Stable source ID: src-2a12fd34ad6ebb05
Publisher: Name not classified · energiaytransporte.com.ar
Type / language: web-page · language not classified
Published: Not recorded
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Verified from search results, not fetched directly. Reports AMBA bus ridership falling from 3,554 million passengers in 2015 to 2,594 million in 2025 (−27%), with a further ~9% year-on-year drop in January 2026. Metro-area figure, not Metrobus-specific — cited as context for the network's demand environment, not as a Metrobus outcome.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Pablo E. Warnes — Transport Infrastructure Improvements and Spatial Sorting: Evidence from Buenos Aires pewarnes.github.io · background

Open original source ↗

Stable source ID: src-46e8a9d688ad9a1b
Publisher: Name not classified · pewarnes.github.io
Type / language: web-page · language not classified
Published: Not recorded
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Fetched. Working paper (2024, 'NEW DRAFT COMING SOON'), also circulated by CAF, finding the BRT increased spatial segregation between high- and low-skilled residents. Listed for the editor's awareness; not used as an impact figure because it is unpublished and the CAF landing page (scioteca.caf.com/handle/123456789/1911) returned HTTP 503.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Known limits of this passport

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.