1001 Smart Cities
🇨🇴 Bogotá

TransMilenio Zero-Emission Electric Bus Fleet

🤖 AI-generated summary of the sources below · 🔎 Last verified · ◆ 6 sourced claims, none individually verified yet

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.

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

✎ Corrected 27 Aug 2026 Record revised. What changed →

Bogotá's transit operator TransMilenio runs roughly 1,485 electric buses on feeder and increasingly trunk routes with dedicated charging depots — one of the largest e-bus fleets in Latin America, second only to Santiago's. A 2026 tender added 269 more zero-emission trunk buses, which the city's environment secretariat estimates will avoid about 26,000 tonnes of CO2 per year.

Live 📅 since 2019
Outcome🎯 Succeeded
Evidence🏛️ Official
what does this mean?The strongest source is the operator's or the city's own reporting — an official report, dataset or press release. It grades who did the looking — not how well the project went. All four grades →
Run byTransMilenio
Scale🏙️ City-wide

📊 Impact

The Bogotá District Environment Secretariat's figure for the 269-bus trunk tender is roughly 26,000 tonnes of CO2 avoided per year, and TransMilenio puts its 'Nueva Era' articulated fleet at at least 33,300 tonnes a year. Both are projections attached to a procurement, and neither has been independently audited.

🎓 Lesson

Every emissions number attached to this fleet is the buyer's own arithmetic. Bogotá runs one of the largest electric bus fleets in Latin America, and each tranche arrives with a projection — 26,000 tonnes of CO2 a year for one tender, at least 33,300 for another — issued by the body doing the buying and never revisited afterwards. A fleet this size is a rare chance to measure what electrification actually does to a corridor's air; nobody has published that measurement.

🚲 MobilityPublic transportEV & charging

Sources

↗ TransMilenio (authority)Operator release on the "Nueva Era" articulated fleet: at least 33,300 tonnes of CO2 a year avoided and more than 2 million users a day served. The page shows no publication date to automated retrieval, so none is recorded. The page states no publication date.
↗ Latam Mobility (press)Published 28 April 2025Trade report of 28 April 2025 on the 269-bus tender: the buses aim to cut 26,000 tonnes of CO2 a year, and Bogotá currently operates 1,485 fully electric buses.
↗ Semana (press)Published 6 July 20262026 award of the 269-bus contract (157 articulated + 112 bi-articulated) to the Transdev/Buses S.A.S. consortium, trunk fleet 2,203→2,472.
↗ Sustainable Bus (press)Published 6 April 2022406-unit BYD/Superpolo feeder deployment across 14 zonal routes.

📅 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 2019. 3 of 4 sources carry a publication date, from 6 April 2022 to 6 July 2026.

When the sources were published

  1. Sustainable Bus · pressSustainable Bus (press)
  2. Latam Mobility · pressLatam Mobility (press)
  3. Semana · pressSemana (press)

Every source, with links ↑

What happened to this record

  1. Entered the record
  2. Record revised
  3. Sources last read

Every revision, permanent →

Show your work What this page rests on and what it can’t tell you · all 6 claims with their sources · the forensic record

Evidence Passport · public beta 6 addressable claims, 4 source dossiers, one permanent baseline. The passport 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 6

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-53b1902bba6bf9b8 quantitative
Bogotá's transit operator TransMilenio runs roughly 1,485 electric buses on feeder and increasingly trunk routes with dedicated charging depots
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Trade report of 28 April 2025: Bogotá currently operates 1,485 fully electric buses; the earlier trade report covers the depot-based fleet build-up.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Latam Mobility (press)
  2. Sustainable Bus (press)
Claim 2 clm-f301afdfd7b25f88 descriptive
one of the largest e-bus fleets in Latin America, second only to Santiago's
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Trade report: with the latest tender the city aims to surpass regional peers like Santiago, Buenos Aires and Mexico City in clean fleet leadership.
Caveat
The source phrases Bogotá's position as aiming to surpass Santiago rather than ranking the two, so the ordering here is an inference from that wording.

Sources carrying this claim

  1. Latam Mobility (press)
Claim 3 clm-f5a561850fa8457f quantitative
A 2026 tender added 269 more zero-emission trunk buses
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Press report of 6 July 2026 on the award of the contract for 269 buses; the earlier trade report describes the same 269-bus procurement.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Semana (press)
  2. Latam Mobility (press)
Claim 4 clm-ee142af6274b6c8f quantitative
The Bogotá District Environment Secretariat's figure for the 269-bus trunk tender is roughly 26,000 tonnes of CO2 avoided per year
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Trade report: the new additions aim to cut 26,000 tons of CO2 emissions annually.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Latam Mobility (press)
Claim 5 clm-62f45b0bb66afdc1 quantitative
TransMilenio puts its 'Nueva Era' articulated fleet at at least 33,300 tonnes a year
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Operator release: with these zero- and low-emission vehicles at least 33,300 tonnes of CO2 a year would be avoided, serving more than 2 million users a day.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. TransMilenio (authority)
Claim 6 clm-f20fde5764df4c59 quantitative
26,000 tonnes of CO2 a year for one tender, at least 33,300 for another — issued by the body doing the buying and never revisited afterwards
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Both figures come from the parties procuring the buses: the environment secretariat's number reported in the trade press, and the operator's own release. No source found revisits either figure after the buses entered service.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Latam Mobility (press)
  2. TransMilenio (authority)
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 2026-08-27-source-dating effective 2026-08-27 · created 2026-08-27

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

sha256:766384862d352ac0076a0770b3a4a5759880d15eaf269ab51a4ce082e807b7b7
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
6
of 6 claims mapped
4
source dossiers
3
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
TransMilenio
Actor types
utility
Funding model
public
Funding description
Not recorded
Cost
Not recorded
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

4 source dossiers

TransMilenio (authority) transmilenio.gov.co · 2 linked claims

Open original source ↗

Stable source ID
src-c35e3cad99702423
Publisher
Name not classified · transmilenio.gov.co
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Operator release on the "Nueva Era" articulated fleet: at least 33,300 tonnes of CO2 a year avoided and more than 2 million users a day served. The page shows no publication date to automated retrieval, so none is recorded. The page states no publication date.

Descriptive only — not page/paragraph exact
Claims linked
Latam Mobility (press) latamobility.com · 5 linked claims

Open original source ↗

Stable source ID
src-3e54a62f5b64e93a
Publisher
Name not classified · latamobility.com
Type / language
web-page · language not classified
Published
2025-04-28
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Trade report of 28 April 2025 on the 269-bus tender: the buses aim to cut 26,000 tonnes of CO2 a year, and Bogotá currently operates 1,485 fully electric buses.

Descriptive only — not page/paragraph exact
Claims linked
Semana (press) semana.com · 1 linked claim

Open original source ↗

Stable source ID
src-09a55887f7d348ef
Publisher
Name not classified · semana.com
Type / language
web-page · language not classified
Published
2026-07-06
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

2026 award of the 269-bus contract (157 articulated + 112 bi-articulated) to the Transdev/Buses S.A.S. consortium, trunk fleet 2,203→2,472.

Descriptive only — not page/paragraph exact
Claims linked
Sustainable Bus (press) sustainable-bus.com · 1 linked claim

Open original source ↗

Stable source ID
src-3588895169d6601b
Publisher
Name not classified · sustainable-bus.com
Type / language
web-page · language not classified
Published
2022-04-06
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

406-unit BYD/Superpolo feeder deployment across 14 zonal routes.

Descriptive only — not page/paragraph exact
Claims linked
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.

Continue exploring

Compare this project

🇪🇬 Cairo Ring Road Bus Rapid Transit (BRT) · Cairo Cairo's new Ring Road BRT launched electric from day one in 2025; Bogotá phased e-buses onto TransMilenio since 2019 (~1,485 now). 🇨🇱 Red Metropolitana de Movilidad Electrification · Santiago Bogotá's ~1,485 e-buses rank second in Latin America, behind Santiago's fleet, which topped 4,000 (60%+ zero-emission) by end 2025. 🇸🇳 Dakar Bus Rapid Transit (electric BRT) · Dakar Electric buses on two continents: Bogotá runs ~1,485 on TransMilenio (2019-); Dakar opened Africa's first all-electric BRT (2024).

Explore the wider context

🔑 Your Smart City Is Owned by Someone Else🚌 Public transport guide🏙️ Bogotá city profile🚲 Mobility projects🐸 Leapfrog Cities📖 Bus rapid transit (BRT)📖 CBTC (communications-based train control)📖 Congestion pricing
📎 Cite this project

1001 Smart Cities (2026). “TransMilenio Zero-Emission Electric Bus Fleet” — Bogotá, Colombia. The Smart City Atlas. https://1001smartcities.org/projects/bogota-electric-buses/ (last verified 2026-08-27). Data: CC BY 4.0.

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

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