Jarrett Walker
Jarrett Walker
@humantransit.bsky.social
Public transit planning consultant and commentator. Author of the book “Human Transit” and the blog HumanTransit.org. The consulting firm is jarrettwalker.com. Also obsessed with literature and plants.
23.1K followers4.6K following2.7K posts
Jarrett Walker reposted
This historical anecdote makes me absurdly happy. *Of course* a mathematician would have invented bus service!
Blaise Pascal invented public transit in the 1660s. As the greatest mathematician of his age, he saw the math problem that only transit would solve. I wrote about this amazing story here. humantransit.org/2024/12/one-...
Jarrett Walker reposted
Blaise Pascal invented public transit in the 1660s. As the greatest mathematician of his age, he saw the math problem that only transit would solve. I wrote about this amazing story here. humantransit.org/2024/12/one-...
Blaise Pascal invented public transit in the 1660s. As the greatest mathematician of his age, he saw the math problem that only transit would solve. I wrote about this amazing story here. humantransit.org/2024/12/one-...
Jarrett Walker reposted
If you are unfortunate enough to be driving into San Francisco on I-80, please watch the road rather than judging the architecture. It's very dangerous right here. www.sfgate.com/local/articl...
Jarrett Walker reposted
I conceptually understood but still did not realize exactly how good interlining was until I was at the @humantransit.bsky.social workshop looking around at everybody's maps and seeing how much you could push core service while still getting service "out there" by branching/interlining
This is also what makes interlining and thru-running effective strategies for regional rail: demand further out in less-dense areas is proportionally provided, but as lines converge and serve denser parts of the region, routes combine to provide lower headways and higher service frequencies.
My advice to voters, especially in the SF Bay Area, on how to think about your vote on a transit funding measure. humantransit.org/basics-shoul...
Jarrett Walker reposted
"Should I Vote for a Transit Tax?" 10 points to consider when navigating these noisy debates at election time. www.strongtowns.org/journal/2026... via @strongtowns.org and @humantransit.bsky.social
Lots of people drive cars in the US but that doesn't mean they want to. Car fanatics want us to believe that car-dominance is because customers love cars. But choices reveal desires only when there are real options. usa.streetsblog.org/2026/10/14/s...
Key pt for those who want to cut transit funding because agencies are "inefficient." A big growth in transit costs since 2020 has been security, partly due to pressure from some of the same people who now want that to be evidence of inefficiency. By @idothethinking.bsky.social. Link in 1st reply.
Here's the Darrell Owens (@idothethinking.bsky.social) piece defending the San Francisco Bay Area transit funding measure. darrellowens.substack.com/p/voting-aga...
If you're in a US city that is facing a transit funding referendum in November, such as the San Francisco Bay Area, here's my quick guide on how to think about transit measures in general, and the forces behind them. humantransit.org/basics-shoul... Comments welcome.
The US has elections for transit funding measures coming up in several cities. So I just updated my general advice about how to vote in these elections. It's more complicated than "just vote yes". Even I as a transit advocate have voted no sometimes. humantransit.org/basics-shoul...
Seoul is aiming for 500 autonomous buses in their public transit network by 2030. They will be 11m long (longer than the one in this image looks to me). Not surprised that fast-aging South Korea is leading on this. www.koreatimes.co.kr/southkorea/o...
Jarrett Walker reposted
Geometry: "The most important concept in transport planning. Everything else is footnotes." ~Jarrett Walker (@humantransit.bsky.social).
It’s remarkable how many people can move on a street when those people don’t feel the need to always take a massive car with them. Mobility in cities is about space.
Jarrett Walker reposted
This week NITA is the proud host of @humantransit.bsky.social’s Intensive Transit Network Design Course in which local Chicago planners, advocates, developers and more have come together to dive deep into transit planning and how to use it to create better cities and towns. 🧑🏫
Jarrett Walker reposted
Hey, #Milwaukee people, Jarrett Walker is talking about redesigning our #bus network to address our #publictransit financial challenges. Check it out and take the survey. 🚌
Milwaukee, Wisconsin: Our firm has developed some alternative concepts for the near-future of your transit network! Read all about it here: humantransit.org/2026/09/milw...
Milwaukee, Wisconsin: Our firm has developed some alternative concepts for the near-future of your transit network! Read all about it here: humantransit.org/2026/09/milw...
Now and then, just to mess with everyone's expectations of me, I like to post my 1992 Shakespeare Quarterly paper on Shakespeare's play Coriolanus. www.enotes.com/topics/corio...
One of the best podcasts I've ever done on the public transit challenge in the US. A great conversation with @clmarohn, the founder of @strongtowns. Please share. podcast.strongtowns.org/e/the-transi...
One of the best podcasts I've ever done on the public transit challenge in the US. A great conversation with @clmarohn, the founder of @strongtowns. Please share. podcast.strongtowns.org/e/the-transi...
Know anyone in Milwaukee, Wisconsin? Please forward them this. We need their feedback on difficult choices facing the transit system. www.ridemcts.com/programs/mct...
Jarrett Walker reposted
“Lower-income people will generate traffic congestion if you force them to [by not providing alternatives, such as public transport]” 🎯
This post may be the most effective argument right now for letting public transit wither. It may not make sense to you, but it feels right to many, many people. So in a short new post, I talk through what's going on here, and how to engage with it. humantransit.org/2026/09/the-...
That feeling when you’re reading an 1817 William Hazlitt essay about Shakespeare’s Coriolanus and it’s suddenly all about 2026. www.gutenberg.org/cache/epub/5...
Jarrett Walker reposted
> In whatever room you are in, ask: ‘Who is not in the room?’
This post may be the most effective argument right now for letting public transit wither. It may not make sense to you, but it feels right to many, many people. So in a short new post, I talk through what's going on here, and how to engage with it. humantransit.org/2026/09/the-...
Monterey, California is gorgeous in late October! I'll be speaking then at the California Transit Association conference! lnkd.in/p/gY4p4wBC
Jarrett Walker reposted
Replacing public transit autonomous vehicles would be neither fair nor effective even if they were widely available and safe. I would have thought this obvious but it's good to have the arguments spelled out clearly.
This post may be the most effective argument right now for letting public transit wither. It may not make sense to you, but it feels right to many, many people. So in a short new post, I talk through what's going on here, and how to engage with it. humantransit.org/2026/09/the-...
This post may be the most effective argument right now for letting public transit wither. It may not make sense to you, but it feels right to many, many people. So in a short new post, I talk through what's going on here, and how to engage with it. humantransit.org/2026/09/the-...
Jarrett Walker reposted
On this anniversary of the 9/11 attacks, the US government is unlikely to express the appropriate gratitude to the Canadian people for all their efforts to help on that day and the days after. So I suggest retweeting Canadians congratulating themselves.
On 9/11, the people of Gander stepped up. They showed the very best of Canada.
Coming to Chicago for the APTA Transform conference? Already there? We have just FOUR places left in my "inexcusably fun" two-day course in transit network design on Oct 1-2. Read all about it here, and please share! humantransit.org/2026/08/our-...
Is your city stuck on rail vs. bus debates? Here's the explainer you need! humantransit.org/basics-sorti...
Do you know people who want to learn about public transit but who learn better orally than by reading? All my recent podcast interviews and conference keynotes are now in one place: humantransit.org/jarretts-key.... Please share!