In contrast, coastal cities like Montevideo and Buenos Aires benefit from wind-driven dispersion, yet still exceed WHO thresholds due to persistent local and regional sources.
21.02.2026 17:16
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In contrast, coastal cities like Montevideo and Buenos Aires benefit from wind-driven dispersion, yet still exceed WHO thresholds due to persistent local and regional sources.
Santiago emerged as the most polluted city in terms of NO2 and PM levels, exacerbated by its topographical constraints and cold-season heating.
Clear seasonal patterns were identified, with JJA and dry conditions being linked to elevated concentrations of PM and NO2, particularly in cities affected by heating emissions (e.g., Santiago, Montevideo) and biomass burning (e.g., Bogotá, Quito)
Despite some progress in reducing PM and NO2 levels, particularly in Bogotá (30% PM10 reduction) and São Paulo (20.5% PM2.5 reduction), none of the cities meet the WHO air quality guidelines.
González, Y., Malagón, N., Benavides, K. et al. Spatio-temporal Trends of Air Pollution in Six South American Cities. Earth Syst Environ (2026). doi.org/10.1007/s417...
And the streetcar is electric.
Wichita Falls, Texas, 1927.
Adequately addressing the climate crisis demands a full systems transformation — and transportation remains at the center of that shift.
In 2026, building efficient, reliable, and safe #BRT systems is more critical than ever — Download the full BRT Standard, 2024 Edition: itdp.org/publication/...
Felicitaciones Salvador 🇧🇷 Santiago 🇨🇱 Kochi 🇮🇳
Ejemplos a seguir en movilidad sostenible
🎉🚍 The 2026 Sustainable Transport Award Ceremony is now live!
Celebrate the cities leading the way in people-first mobility:
🏆 Winner: Salvador, Brazil
🌟 Honorable Mentions: Santiago, Chile & Kochi, India
Learn how these cities are transforming urban transport. 👇
youtu.be/q7J_867BiDA
Thanks Robin Hickman @ucl.ac.uk for a printed copy of the new book
Searching a way out of automobility
Cover: Ciclovía & TransMilenio BRT
Free pdf @ www.ucl.ac.uk/bartlett/pub...
Updated cities/transport Starter Pack!
New: @freewheeling.info
@remmid.bsky.social @longbranchmike.bsky.social @transportaction.ca @emmbadger.bsky.social @busdriverlife.bsky.social @dutchcycling.nl @capntransit.bsky.social @commutedeparis.bsky.social @dhidalgo65.bsky.social @emmanuelspv.bsky.social
Bogotá 🇨🇴 is building its first metro line
Check this video by Americas Now telling the story
Construction progress 70% by December 2025
Expected operation March 2028
youtu.be/5gttqJ5HEtE?...
Individual gain, societal pain: When personal mobility solutions become public problems
Luis A. Guzman
Victor A. Cantillo-Garcia
Angie Criado
Lauren Bisi
Andrés I. Vecino-Ortiz
Abdulgafoor M. Bachani
On motorcycle growth in Bogotá🇨🇴
www.sciencedirect.com/science/arti...
That and other evidence from the policy, which is one year old today, in a big collab between @upshot.nytimes.com and the NYT Metro desk:
www.nytimes.com/interactive/...
For something really ambitious, take a look at how Bogotá changed the way people move through a city of 8 million with its revolutionary Bus Rapid Transit system. (Post written by @dhidalgo65.bsky.social :
www.highspeed.blog/dispatch-fro...
This week, marks the 25th anniversary of TransMilenio.
It turned a chaotic "system" of busetas, competing for passengers on the streets of Bogotá, into the largest bus rapid transit network in the world.
🧵
Aquí en espan̈ol
Gracias @taras-grescoe.com por la invitación a ##HighSpeed
www.lasillavacia.com/red-de-exper... @lasillavacia.bsky.social ##RedCachaca
Aquí en espan̈ol
Gracias @taras-grescoe.com por la invitación a ##HighSpeed
www.lasillavacia.com/red-de-exper... @lasillavacia.bsky.social ##RedCachaca
Today, BRT is part of the public transport networks of 191 cities around the world, and 32 million passengers are carried on 6,000 kilometers of BRT lanes every day.
I asked a BRT pioneer, @dhidalgo65.bsky.social , to write about the system...
...in this week's HIGH SPEED dispatch.
(There will be more guest dispatches from around the world to come!)
www.highspeed.blog/dispatch-fro...
Today, Dec. 18, marks the 25th anniversary of TransMilenio.
It turned a chaotic "system" of busetas, competing for passengers on the streets of Bogotá, into the largest bus rapid transit network in the world.
I asked a BRT pioneer, @dhidalgo65.bsky.social , to write about the system...
🧵
Dispatch from Colombia🇨🇴
A Pioneer Looks Back—and Forward—at a Quarter Century of Bogotá’s TransMilenio Bus Rapid Transit System 🚌🚌
High Speed @taras-grescoe.com
www.highspeed.blog/dispatch-fro...
Public transportation violence affects mobility.
Women experience more sexual violence, particularly during the access and waiting stages.
Longer walking, waiting, and in-vehicle times increase the likelihood of violent incidents.
New publication
Basnak, Guerrero, Vallejo-Borda, López Fabra, Turrén-Cruz,
Determinants of violence on public transportation from the perspective of a small city in the global south,
Journal of Transport Geography,
Volume 131,
2026
www.sciencedirect.com/science/arti...
Ocan̈a 🇨🇴
The relationship between street design and walking in the Global South -a systematic literature review
Chebe, P., Dilian, O., & Martens, K. (2025)
International Journal of Sustainable Transportation, 1–17. doi.org/10.1080/1556...
"The main lesson for policymakers is that if public funds are not available then the pace and ambitions of a transit reform need to be scaled back."
Andrés Gómez-Lobo
www.sciencedirect.com/science/arti...
Lessons from Transantiago 🇨🇱
"The main lesson for policymakers is that if public funds are not available then the pace and ambitions of a transit reform need to be scaled back."
Andrés Gómez-Lobo
www.sciencedirect.com/science/arti...
Lessons from Transantiago 🇨🇱
london has achieved bogotá levels of cycling
Mass rapid transit in Jakarta Images of different modes and map of the corridors https://www.sciencedirect.com/science/article/pii/S2213624X25003050
BRT uplift (2017) reverses to citywide proximity penalties by 2021.
MRT exhibits uplift, strongest around upgraded stations.
Citywide mode shift in capitalisation from BRT to rail.
Policy: co-locate BRT-MRT, mitigate BRT penalties, time TOD and LVC.
New publication
Evolving land value effects of BRT and MRT: Evidence from Jakarta’s mobility transition
Jauregui-Fung, Kuhnimhof & Kenworthy
Case Studies on Transport Policy @elsevierconnect.bsky.social
www.sciencedirect.com/science/arti...
