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Jeffrey Tumlin 🏳️‍🌈 🌁

@jeffreytumlin.bsky.social
4.2K followers 848 following 5.7K posts

Transport nerd. Recovering city bureaucrat. Introvert. Working to cut CO₂, eliminate traffic violence, advance equity, and strengthen local economies. Former SFMTA, OakDOT, Nelson/Nygaard. SF.

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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 9h
It's good to have friends happy to take me to the world's tallest hedge en.wikipedia.org/wiki/Meikleo...
en.wikipedia.org
Meikleour Beech Hedges - Wikipedia
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 30/09/2026
Train nerd joy
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Yonah Freemark @yonahfreemark.com · 30/09/2026
I've added a new feature to Transit Explorer—the database of the world's fixed-guideway transit systems: The ability to compare cities, side by side, at the same scale. Here, for example, is Washington vs. Chicago, and Singapore vs. London! Play around: www.thetransportpolitic.com/transitexplo...
Transit systems in Washington and Chicago, at the same scale.Transit systems in Singapore and London, at the same scale.
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 28/09/2026
"Oh the Dublin Bus Is a joke to us In Ballymun they call them UFOs, Sir Still we all look well 'Cause we walk like hell We're the healthiest city on the Dole, Sir...
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 27/09/2026
My new drag name: Lana Tram Tram-Only Lane, Dublin
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Fast Company @fastcompany.com · 27/09/2026
The museum’s first-ever exhibition dedicated to information design includes works by a climatologist, The New York Times, and more. f-st.co/Z1iiWnI
f-st.co
MoMA explores the useful beauty of information design
The museum’s first-ever exhibition dedicated to the field includes works by a climatologist, The New York Times, and more.
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 26/09/2026
Dublin's low-floor trams (Luas) seem to have good signal priority and congestion protection. Overhead wire system designed to minimize visual clutter en.wikipedia.org/wiki/Luas?wp...
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Sanho Tree @sanho.bsky.social · 26/09/2026
Happy Stanislav Petrov day! He saved the world from nuclear annihilation on this day in 1983. My freshman year in college would have been so much worse without his courage.🧵
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 25/09/2026
Good evening, Dublin
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Joel Engardio @joelengardio.bsky.social · 25/09/2026
Thank you San Francisco Chronicle for making a strong case for Sunset Dunes and debunking the disinformation. Thousands of people of all ages and backgrounds are improving their physical and mental well-being every day of the week at Sunset Dunes.
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c0nc0rdance @c0nc0rdance.bsky.social · 27/09/2025
It's Monarch butterfly (Danaus plexippus) migration season in Texas. At least 90% of all southward migration passes through Texas, either along the coast, or through central Texas. They'll overwinter in Mexico, then return. Let's talk about the utter weirdness of generational migration.
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 24/09/2026
Manhattan(Bridge)ization After meetings in Brooklyn, walked down to DUMBO then biked back to Midtown - protected bikeway the entire way
View of Manhattan bridge from DUMBO
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Ray Delahanty | CityNerd @nerd4cities.bsky.social · 22/09/2026
New for the Nebulized: it was fun doing a dry run of this one live in Seattle last week — probably helped me dial in the themes and the storyline a bit too. Also, stop telling me to go to the transit-oriented blueberry farm, it’s never happening nebula.tv/videos/cityn...
nebula.tv
CityNerd — Seattle’s LINK Is That Good (We Just Need More)
2026 has been a year of record-setting performances for Seattle's Link light rail, with new suburban connections and big network effects. But can Puget Sound keep the transit momentum going?
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 24/09/2026
Manhattanization
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 24/09/2026
Your bus operator knows the difference between real "partnership" and marketing ploy
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Brian Watt @radiobwatt.bsky.social · 22/09/2026
www.kqed.org/news/1210073...
kqed.org
Bay Bridge Traffic Delays Would Double if Transit Tax Measures Fail, Report Finds | KQED
The new findings show that reduced public transit service and station closures would affect traffic and quality of life throughout the region.
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 22/09/2026
Walking from Hell's Kitchen to Grand Central I accidentally cross the most mercantile center of the most mercantile city in the history of the world
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 21/09/2026
Manhattanization
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By Cory Doctorow (GPG 0xBF3D9110957E5F4C) @doctorow.pluralistic.net · 21/09/2026
This reflex to attribute intention explains why AI is so controversial, compelling and *eerie*. Mark Fisher defines eeriness as "when there's something present where there should be nothing, or if there is nothing present when there should be something": www.programmablemutter.com/p/large-lang...
programmablemutter.com
Large Language Models are Uncanny
Like capitalism, LLMs are haunted: voids that seem to speak
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 21/09/2026
I shall never again feel trapped by United into the tyranny of EWR-NJT-Penn Station. Long live JFK-LIRR-Grand Central!
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Cyrus Hall @cyrushall.bsky.social · 20/09/2026
Huge thanks to everyone that came out to the Regional Transit Measure day of action! See you all door knocking soon!
instagram.com
Connect Bay Area Transit on Instagram: "Yes on RTM Day of Action across the bay was a success! Thank you to all of our amazing supporters, advocates, and organizers who came out to support💚🚊"
68 likes, 1 comments - connectbayareatransit on September 18, 2026: "Yes on RTM Day of Action across the bay was a success! Thank you to all of our amazing supporters, advocates, and organizers who ...
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 19/09/2026
Come join us at NYC #ClimateWeek on Wednesday. Transport is biggest source of GHGs, yet we keep investing in wrong solutions and avoiding right ones. We'll explore why and how to shift narrative
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 19/09/2026
Heating the oceans increases likelihood of catastrophic weather and also breaks prediction models. Your local hardware store will deliver durable supplies now to help you through coming winters. I'm glad Home Depot just delivered me a pallet of sandbags
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 19/09/2026
City staff can deliver. They joined govt because they love serving people and fixing broken things. Staff need policymakers ready to set clear perf metrics, remove pointless toil, accept risk, and clear a path so they can do the work they love.
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 19/09/2026
@sfchronicle.com photographer Manuel Orbegozo for best pic of the month
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Yonah Freemark @yonahfreemark.com · 18/09/2026
Jacksonville Florida, the nation’s 11th largest city, has approved 22% transit cuts. It’s a nightmare: —Most bus service will operate on Sat schedule —The city’s automated rail service will simply not run —A “Navi” automated bus service will become manual because they can’t afford the software
news4jax.com
JTA planning additional layoffs as it works to cut $39 million from FY 2027 budget, suspend Skyway service in November
The Jacksonville Transportation Authority will reduce its Fiscal Year 2027 budget by $39 million, suspend passenger service on the Skyway and pause Navi service as it works to balance revenue and expe...
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SFMTA Muni Alerts (Official) @muni.sfmta.com · 18/09/2026
Muni Heritage Weekend is back! Join us and @sfmsr at Embarcadero Plaza for a weekend of transit history & fun for the whole family, Sept. 19-20 10 a.m. to 4 p.m. Ride rare historic streetcars & buses at no cost! www.sfmta.com/blog/muni-heritage-we…
sfmta.com
Muni Heritage Weekend Returns Sept. 19-20
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Paul Ford @ftrain.com · 16/09/2026
hey I heard you like sankey diagrams that show huge populations making terrible decisions
A very complicated Sankey diagram showing the usage of electricity in the United States. Or the left are sources of energy and on the right are consumers, so, for example, nuclear is on the left and residential is on the right. Petroleum dominates.
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 18/09/2026
Dear editors, ...
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 18/09/2026
Thanks @scottwiener.bsky.social, Mayor Lurie, @myrnamelgard7.bsky.social, @bilalmahmood.bsky.social, @dannysauter.bsky.social, Sup Cheyenne Chen and SF Chamber's Rodney Fong for your strong support of transit. There's no recovery without it
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 18/09/2026
Train wash ASMR
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Robert Prinz @prinzrob.bsky.social · 13/08/2026
This change means Emeryville will have 15 mph speed limits on its entire bike boulevard network. Here’s more info on how they accomplished this, and how this same opportunity can be used in any jurisdiction throughout California: bikeeastbay.org/emeryville-s...
bikeeastbay.org
Emeryville Sets Citywide 15 MPH Speeds for Bike Boulevards - Bike East Bay
Learn how Emeryville was able to reduce speed limits and how you can bring this to your city.
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 17/09/2026
Join me today at 4:30p at Market and Powell to show support for transit. Details: luma.com/5sdikiw8
luma.com
Yes on RTM Day of Action: Rally in Downtown San Francisco + BART Crawl! · Luma
We're kicking off the Yes on RTM campaign in San Francisco at the Powell St. Cable Car Turnaround! Hear from elected and community leaders about how vital it…
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Steven Higashide @stevenhigashide.com · 17/09/2026
Tacos + transit: Two things that make a city better. On 9/26, as part of the Bay Area's Transit Month, I'll join @transbaycoalition.bsky.social and BART and AC Transit directors to tour the Tempo Line--and some of the best taco spots on International Boulevard. actionnetwork.org/events/tempo....
actionnetwork.org
Tempo Line Taco Tour
It’s a taco party! To kick off Transit Month 2026, Transbay Coalition and AC Transit are hosting a tour of some of the amazing taco spots along International Blvd, by riding the T1 Tempo Bus Line from...
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 17/09/2026
Bay Area transit advocates gathered signatures to save transit, and now they're delivering the vote. Want to make a difference for our region? No better place to invest your time than informing voters and networking with future leaders luma.com/connectbayar...
luma.com
Connect Bay Area · Events Calendar
View and follow events from Connect Bay Area on Luma. Organizing for the Regional Transit Measure on the November 2026 ballot. Vote Yes on RTM November 3rd! ConnectBayArea.com
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Cyrus Hall @cyrushall.bsky.social · 14/09/2026
This Thursday, we're kicking off the ground game for the Regional Transit Measure, with events in each of the 5 counties. There are 50 days until the election. In that time, we need to convince Bay Area voters to invest in public transit! In San Francisco? Come rally and then talk to BART riders!
luma.com
Yes on RTM Day of Action: Rally in Downtown San Francisco + BART Crawl! · Luma
We're kicking off the Yes on RTM campaign in San Francisco at the Powell St. Cable Car Turnaround! Hear from elected and community leaders about how vital it…
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 15/09/2026
Every week, Bob Mackie produced 65-70 costumes for the Carol Burnett Show - totaling more than 17,000 looks. His iconic gown for Miss Starlett in "Went With the Wind" is in the Smithsonian - “I saw it in a window and just couldn’t resist it,” Burnett quipped. Watch: youtu.be/-8wVvGQ0P4Y?...
youtu.be
Went with the Wind
YouTube video by Carol Burnett show skits
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Michael Warburton @michaelwarburton.bsky.social · 14/09/2026
Cher’s outfit reveals on The Cher Show (1975) designed by BOB MACKIE — who passed away today at the age of 87.
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Warren Wells, AICP @warrenjwells.bsky.social · 14/09/2026
I just wrapped my biggest project at @marinbike.org, our 2050 Marin County Vision Network. It is our proposal for how Marin can become the most bike-friendly county in the US over the next quarter century. I put a ton of work into this and I'm very proud of it. marinbike.org/news/marin-c...
marinbike.org
A Vision for Marin’s Future Bike Network
MCBC has launched its 2050 Vision Network, an ambitious proposal for the county's all ages and abilities bike network to be completed in the next 25 years.
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By Cory Doctorow (GPG 0xBF3D9110957E5F4C) @doctorow.pluralistic.net · 14/09/2026
thevaultoftheatomicspaceage.tumblr.com/post/8277458...
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The Oaklandside @oaklandside.org · 12/09/2026
From Veo Mobility and Lime scooters to Oakland’s e-bike library and discount bus passes, the Town has a variety of options to make transportation affordable.
oaklandside.org
Oakland low-income transit guide: How to get around for free or at a discount
From Veo Mobility and Lime scooters to discount bus passes, the Town has a variety of options to make transportation affordable.
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Yonah Freemark @yonahfreemark.com · 14/09/2026
The City Rail Link is a cool project: It's finally bringing rail service to central Auckland, and doing so with a through-running tunnel that will link services across the region. Project details: www.cityraillink.co.nz Project map: www.thetransportpolitic.com/transitexplo...
Map of City Rail Link in Auckland, from Transit Explorer.
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 13/09/2026
Slow Streets build community capital
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 12/09/2026
In the US transit industry right now, there's no better place to take your talent and ambition than to @nitachicago.bsky.social
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 12/09/2026
Want to understand how positive change actually gets done in SF? No one tells a better story than @joelengardio.bsky.social
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 12/09/2026
Scene: Me, frustrated, writing at desk. Husband at kitchen sink. Husband: Come here! Me: What's up? H: Look! M: Huh? H [pointing] There! Then I saw it: last of summer pluots, backlit by setting sun, glowing with fiery intensity. Grateful for partner eager to share everyday magic
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 11/09/2026
History rhymes
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 10/09/2026
Thursday morning at Sunset Dunes Park. Prop G supporters want to demolish this and turn it into a highway @sunsetdunes.org
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 10/09/2026
Join us at NYC Climate Week on Wed 9/23. AVs could be part of climate solution, but industry and regulators aren't yet pointed in that direction
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Jeffrey Tumlin 🏳️‍🌈 🌁 @jeffreytumlin.bsky.social · 10/09/2026
Metro Seattle transit FTW! Key elements: - Relentless focus on bus speed + reliability incl RapidRide - Link Line 2 - Line 2 connects to Bellevue and Redmond, where massive ped-oriented growth near stations drove bi-directional ridership More at @theurbanist.org www.theurbanist.org/how-downtown...
Downtown Bellevue WADowntown Redmond WA -- image from The Urbanist at https://www.theurbanist.org/how-downtown-redmond-grew-from-sleepy-suburb-to-small-city/
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