Permanent project revision

Metrobus: Mexico City's BRT Network and Its Open Real-Time Feed

Revision 2026-08-20-source-dates · effective 2026-07-26

Current revision. This is the snapshot used by the live entity page.

unreviewed

Created the first structured Evidence Passport with 1 claim and 12 source dossiers.

sha256:7e95979da453742aae050f8d193726c3f8f707e15257b807e0beed26830e908e

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.

1: of 1 claims mapped
12: source dossiers
6: publication dates recorded
1: 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-f52bfe64c4132061 quantitative

Peer-reviewed before-and-after measurements on the Insurgentes corridor found commuter exposure fell by up to 45% for CO, 54% for benzene and 30% for PM2.5

Published field: impact · verbatim
Mapping: mapped · no interpretation or interpolation added by this passport
What the mapping says: The study measured sharply lower commuter exposure to carbon monoxide, benzene and fine particles on the Insurgentes corridor, with no significant change in PM10.
Caveat: The entry's lesson notes the measured gains came from the physical bus-fleet swap, not the data layer, which arrived thirteen years later.

Sources carrying this claim

Wohrnschimmel et al., Atmospheric Environment (2008)

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-source-dates effective 2026-07-26 · created 2026-08-20

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

sha256:7e95979da453742aae050f8d193726c3f8f707e15257b807e0beed26830e908e

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

1: of 1 claims mapped
12: source dossiers
6: publication dates recorded
1: archives linked
0: exact locators
0: content captures hashed

Governance facts carried by the record

Operator: Metrobus, an organismo publico descentralizado of the Mexico City government, with about ten private empresas operadoras running the buses and separate trusts holding fare revenue
Actor types: utility, private
Funding model: ppp
Funding description: City capital works and operating contracts; buses financed and owned by private operating companies; the Insurgentes corridor was set up as a World Bank carbon-finance operation (P082656) and listed with the UN Clean Development Mechanism (project 4945)
Cost: Not recorded
Ownership: Not recorded
Decision rights: Not recorded
Exit conditions: Not recorded

12 source dossiers

Wohrnschimmel et al., Atmospheric Environment (2008) sciencedirect.com · 1 linked claim

Open original source ↗

Stable source ID: src-3fd6ca553b3ce540
Publisher: Name not classified · sciencedirect.com
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: Open archived copy ↗ · 2023-07-19
Content hash: No captured content hash
Locator: Open the recorded source note
Peer-reviewed before-and-after measurement inside vehicles: 'The implementation of the BRT system resulted in reductions in commuters' exposure to CO, benzene and PM2.5 ranging between 20% and 70%', with reductions of up to 45% for CO, 54% for benzene and 30% for PM2.5, and no significant PM10 reduction. Carries the impact figures.
Descriptive only — not page/paragraph exact
Claims linked: clm-f52bfe64c4132061

Bel & Holst, Transport Policy 63 (2018) 209-220 econpapers.repec.org · background

Open original source ↗

Stable source ID: src-c19cf21be8ee687c
Publisher: Name not classified · econpapers.repec.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
Differences-in-differences assessment of ambient monitoring data: 'Results show that BRT constitutes an effective environmental policy, reducing emissions of CO, NOX, and PM10.' Independent of the operator.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Decreto por el que se crea el organismo publico descentralizado Metrobus (Gaceta Oficial del Distrito Federal, 9 March 2005) mexico.justia.com · background

Open original source ↗

Stable source ID: src-1eeae47ff032996a
Publisher: Name not classified · mexico.justia.com
Type / language: web-page · language not classified
Published: 2005-03-09
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
Creates Metrobus as a decentralised public body 'con personalidad juridica, patrimonio propio y autonomia tecnica y administrativa' ('with legal personality, its own assets and technical and administrative autonomy'), charged with planning, administering and controlling the corridor system.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Proyecto Metrobus Electrico — La organizacion del sistema de Metrobus metrobuselectrico.com · background

Open original source ↗

Stable source ID: src-bf8cc58e0b28ae9a
Publisher: Name not classified · metrobuselectrico.com
Type / language: web-page · language not classified
Published: 2023-03-10
Updated: 2023-04-04
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
On bus ownership: 'Las empresas transportistas son las encargadas de comprar, operar y darle el mantenimiento adecuado a los autobuses' ('The transport companies are responsible for buying, operating and properly maintaining the buses'); fare revenue is held in trusts, one per line, and distributed 'entre las empresas prestadoras de los servicios del sistema'.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Metrobus CDMX — open operational data in GTFS-RT x.com · background

Open original source ↗

Stable source ID: src-6865ca89003164d2
Publisher: Name not classified · x.com
Type / language: web-page · language not classified
Published: 2018-11-12
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
Operator announcement of the real-time feed: 'MB en colaboracion con @Labcdmx pone a disposicion datos de operacion en tiempo real 1. Avisos sobre contingencias en el sistema 2. Tiempo estimado de arribo en las estaciones 3. Reporte GPS de la ubicacion de las unidades en operacion. En formato GTFS-RT' ('Metrobus, with Labcdmx, makes real-time operating data available: system incident alerts, estimated arrival times at stations, GPS reports of the location of units in operation, in GTFS-RT format').
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Metrobus — Datos Abiertos (official portal page) metrobus.cdmx.gob.mx · background

Open original source ↗

Stable source ID: src-772e9ac75f56c091
Publisher: Name not classified · metrobus.cdmx.gob.mx
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
Operator's open-data page: static GTFS is downloadable, the GTFS-Realtime endpoint requires requesting a user account. The page returned HTTP 503 to automated fetching from our sandbox and was verified via search results; an editor should open it manually before sealing.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Portal de Datos Abiertos de la CDMX — Afluencia diaria de Metrobus datos.cdmx.gob.mx · background

Open original source ↗

Stable source ID: src-633ecf25d6b027ff
Publisher: Name not classified · datos.cdmx.gob.mx
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
Daily boarding counts per line and station published as a city dataset. The city's data policy states data are published 'para su libre uso y sin discriminacion alguna en su acceso' and 'bajo terminos que permitan reutilizarlos y redistribuirlos' ('for free use and without discrimination in access', 'under terms permitting reuse and redistribution'); no named licence such as CC BY is stated. Returned HTTP 503 to automated fetching.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Telediario — Metrobus abre centro de control para monitorear unidades telediario.mx · background

Open original source ↗

Stable source ID: src-3687443dfd7be368
Publisher: Name not classified · telediario.mx
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
Control centre inaugurated 20 June 2023 in the Escandon neighbourhood; at opening the director said 'el monitoreo en tiempo real funciona en la totalidad de la Linea 3' ('real-time monitoring works across the whole of Line 3'), with 4,475 onboard and 513 station cameras planned and the monitoring contract held by Sonda Mexico. Single media source, reported as such.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Ganar-Ganar — Una de cada cinco unidades del Metrobus ya es electrica (July 2026) ganar-ganar.mx · background

Open original source ↗

Stable source ID: src-1015f0d2756dd4e9
Publisher: Name not classified · ganar-ganar.mx
Type / language: web-page · language not classified
Published: 2026-07-09
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
Currency check: 'El sistema cuenta con 174 unidades electricas de un total de 890 autobuses' ('The system has 174 electric units out of a total of 890 buses'); Line 3 has run a fully electric fleet since March 2023.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

El Universal — Mas amparos y marchas contra la Linea 7 del Metrobus (2017) eluniversal.com.mx · background

Open original source ↗

Stable source ID: src-fd73bb318e252cc6
Publisher: Name not classified · eluniversal.com.mx
Type / language: web-page · language not classified
Published: 2017-07-05
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
Construction of Line 7 was suspended by an amparo from the Academia Mexicana de Derecho Ambiental over the protected Chapultepec surroundings; the ruling allowed the confined lane to proceed 'pero no puede cortar los arboles' ('but it may not cut down the trees').
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Letras Libres — Metrobus Reforma, una linea incompleta letraslibres.com · background

Open original source ↗

Stable source ID: src-80a014734541f75e
Publisher: Name not classified · letraslibres.com
Type / language: web-page · language not classified
Published: 2017-07-18
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
Design critique: 'Los autobuses de dos pisos, incompatibles con el resto de las unidades de transporte de Metrobus' ('The double-decker buses, incompatible with the rest of Metrobus's vehicles'), and 'Solo los primeros quince kilometros se haran en los novedosos autobuses de dos niveles, el resto del trayecto se realizara en autobuses compactos' ('Only the first fifteen kilometres will be run with the new double-deckers; the rest of the route will use compact buses'). Opinion piece, used only for the design objection.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Gobierno de la Ciudad de Mexico — press release on the Circuito Interior line and the first electric bus jefaturadegobierno.cdmx.gob.mx · background

Open original source ↗

Stable source ID: src-f53aa5362313f9c4
Publisher: Name not classified · jefaturadegobierno.cdmx.gob.mx
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
Official account of the 2005 launch: 'El 19 de junio de 2005 inicio operaciones con una linea de servicio: 20 kilometros de corredor de Indios Verdes a Dr. Galvez, 80 autobuses articulados y transportaba 220 mil pasajeros al dia' ('On 19 June 2005 it began operating with one line: a 20 km corridor from Indios Verdes to Dr. Galvez, 80 articulated buses, carrying 220,000 passengers a day'). Also gives seven lines, 140 km of corridors and 1.5 million daily passengers at the time of writing. Returned HTTP 503 to automated fetching; verified via search results.
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.