Seth LaJeunesse
@sethlaj.bsky.social
🚲 🚶🏻 are the best. 🚗 are not. autonomous people. systems science. social sciences. let’s change the culture.
Providing what quality social science does best: confirm what we’ve intuited all along. Build 🚲 infra and they will 🚲
share.google/s3T59zGKwfpw...
share.google/s3T59zGKwfpw...
Confirmed: Non-Driving Infrastructure Creates 'Induced Demand,' Too — Streetsblog USA
Widening a highway to cure congestion is like losing weight by buying bigger pants — but thanks to the same principle of "induced demand," adding bike paths and train lines to cure climate actually wo...
share.google
January 26, 2026 at 10:31 PM
Providing what quality social science does best: confirm what we’ve intuited all along. Build 🚲 infra and they will 🚲
share.google/s3T59zGKwfpw...
share.google/s3T59zGKwfpw...
What our not-too-distant ancestors propped up (left) vs what we prop up today (right) 🧐
January 24, 2026 at 1:45 PM
What our not-too-distant ancestors propped up (left) vs what we prop up today (right) 🧐
Truth
Something we talk about a lot is that parents don't want to be chauffeurs for their children. It's unfortunate that tech companies are filling the void instead of safe, reliable transit. And this is only a solution for people who can afford a $20 - $40 fare.
Bay Area parents are relying on robotaxis to transport their unaccompanied children. This practice breaks the rules imposed by Waymo, but parents have found they’re unlikely to get caught.
January 21, 2026 at 3:31 PM
Truth
Tracks to this day.
January 18, 2026 at 3:57 PM
Tracks to this day.
What is happening to Carolina? 🏀
January 17, 2026 at 11:14 PM
What is happening to Carolina? 🏀
Reposted by Seth LaJeunesse
Two weeks today will be in Kingston at Queens University talking a little Reframing Our Roads. Open to the public if you are in the area.
January 14, 2026 at 4:17 PM
Two weeks today will be in Kingston at Queens University talking a little Reframing Our Roads. Open to the public if you are in the area.
Only in America can we unironically galvanize the masses by “weaponizing” compliance with a pro-social law.
Also, slowing down helps everyone—even large SUV drivers!—from avoiding death and injury on top of identifying feds. Win win.
Also, slowing down helps everyone—even large SUV drivers!—from avoiding death and injury on top of identifying feds. Win win.
As I was being tailgated down W. River Parkway by a large SUV with tinted windows, the thought occurred to me that it might help if everyone drives a bit slower. Gives observers more time to identify feds.
We have a 20 MPH speed limit on residential streets, let’s weaponize it
We have a 20 MPH speed limit on residential streets, let’s weaponize it
January 14, 2026 at 11:13 AM
Only in America can we unironically galvanize the masses by “weaponizing” compliance with a pro-social law.
Also, slowing down helps everyone—even large SUV drivers!—from avoiding death and injury on top of identifying feds. Win win.
Also, slowing down helps everyone—even large SUV drivers!—from avoiding death and injury on top of identifying feds. Win win.
Would this guy limit himself to only ever enjoying “man cereal?”
Course not. He’s secure with who and what he is.
Course not. He’s secure with who and what he is.
January 9, 2026 at 11:47 PM
Would this guy limit himself to only ever enjoying “man cereal?”
Course not. He’s secure with who and what he is.
Course not. He’s secure with who and what he is.
Houston, Kansas City, Bentonville, San Jose, Detroit, MI; and San Francisco may not appear to have much in common
However, they all are committed to the same sou: permanently reducing or removing car traffic on some of their streets
www.fastcompany.com/91460867/new...
Carrboro (NC), take note
However, they all are committed to the same sou: permanently reducing or removing car traffic on some of their streets
www.fastcompany.com/91460867/new...
Carrboro (NC), take note
January 5, 2026 at 5:52 PM
Houston, Kansas City, Bentonville, San Jose, Detroit, MI; and San Francisco may not appear to have much in common
However, they all are committed to the same sou: permanently reducing or removing car traffic on some of their streets
www.fastcompany.com/91460867/new...
Carrboro (NC), take note
However, they all are committed to the same sou: permanently reducing or removing car traffic on some of their streets
www.fastcompany.com/91460867/new...
Carrboro (NC), take note
Relish the day this is no longer a common view from a local brewery in Carrboro or anywhere. Happy 2026!
January 2, 2026 at 8:44 PM
Relish the day this is no longer a common view from a local brewery in Carrboro or anywhere. Happy 2026!
Hard to deny the mellifluousness of Pittsburghese around the holidays.
December 29, 2025 at 3:44 PM
Hard to deny the mellifluousness of Pittsburghese around the holidays.
Would like to see this global plastics production line next to the global VMT (or car production) line.
December 27, 2025 at 11:55 AM
Would like to see this global plastics production line next to the global VMT (or car production) line.
Reposted by Seth LaJeunesse
How many academic research center closures at UNC will cover his salary? Two? Three?
December 22, 2025 at 2:59 PM
How many academic research center closures at UNC will cover his salary? Two? Three?
Almost makes the cold worth it
December 16, 2025 at 4:53 PM
Almost makes the cold worth it
We’d be wise to appreciate Margaret Heffernan’s keen insight on ‘manufactured inevitability’:
“Anyone claiming to know the future…is just trying to own it.”
www.bbc.com/audio/play/m...
“Anyone claiming to know the future…is just trying to own it.”
www.bbc.com/audio/play/m...
BBC Audio | A Point of View | The Myth of Inevitability
Margaret Heffernan argues that, in the world of technology, nothing is inevitable.
www.bbc.com
December 15, 2025 at 11:27 AM
We’d be wise to appreciate Margaret Heffernan’s keen insight on ‘manufactured inevitability’:
“Anyone claiming to know the future…is just trying to own it.”
www.bbc.com/audio/play/m...
“Anyone claiming to know the future…is just trying to own it.”
www.bbc.com/audio/play/m...
Highly recommended
doi.org/10.1080/0004... @ianwalker.bsky.social @healthtepi.bsky.social @brenttoderian.bsky.social @tomflood.bsky.social @frameworks.bsky.social @felly500.bsky.social @davidzipper.bsky.social @sethlaj.bsky.social @brooklynspoke.bsky.social @sgoodyear.bsky.social @parismarx.com @norton.bsky.social
Unlearned lessons and misplaced hopes: discursive spaces of transport in twenty-first century Australia
In this position paper, we discuss contemporary discursive spaces of transport in Australia and their reflexive relationships with policy and practice. With a focus on ‘devious frames' developed an...
doi.org
December 11, 2025 at 2:11 PM
Highly recommended
New study by Mousely and colleagues illustrates how for most, “adolescence” persists until age 32.
Consider what adolescents are permitted to do in the U.S., often decades before we might consider them biological adults. 🤔
www.washingtonpost.com/wellness/202...
Consider what adolescents are permitted to do in the U.S., often decades before we might consider them biological adults. 🤔
www.washingtonpost.com/wellness/202...
New study shows how your brain changes at four key ages: 9, 32, 66 and 83
New research finds that brain development is not linear. There are distinct phases with unique characteristics.
www.washingtonpost.com
December 9, 2025 at 9:38 PM
New study by Mousely and colleagues illustrates how for most, “adolescence” persists until age 32.
Consider what adolescents are permitted to do in the U.S., often decades before we might consider them biological adults. 🤔
www.washingtonpost.com/wellness/202...
Consider what adolescents are permitted to do in the U.S., often decades before we might consider them biological adults. 🤔
www.washingtonpost.com/wellness/202...
I suspect many of our northern friends and colleagues understand this simple truth:
snow, in less auto-dominated places would be a delight, magic to the young and old alike.
Instead, all we hear about is how this natural and otherwise wondrous occurrence foils car travel.
snow, in less auto-dominated places would be a delight, magic to the young and old alike.
Instead, all we hear about is how this natural and otherwise wondrous occurrence foils car travel.
December 2, 2025 at 4:54 PM
I suspect many of our northern friends and colleagues understand this simple truth:
snow, in less auto-dominated places would be a delight, magic to the young and old alike.
Instead, all we hear about is how this natural and otherwise wondrous occurrence foils car travel.
snow, in less auto-dominated places would be a delight, magic to the young and old alike.
Instead, all we hear about is how this natural and otherwise wondrous occurrence foils car travel.
As @sgoodyear.bsky.social so eloquently conveys, dependence on a functioning car to satisfy the needs of life is the antithesis of ‘freedom.’
🚗💥 What if life after cars is better for everyone?
In LIFE AFTER CARS, @sgoodyear.bsky.social of @thewaroncars.bsky.social shows how communities can thrive when we design for people, not traffic.
A bold, hopeful vision for the future of our cities.
In LIFE AFTER CARS, @sgoodyear.bsky.social of @thewaroncars.bsky.social shows how communities can thrive when we design for people, not traffic.
A bold, hopeful vision for the future of our cities.
November 24, 2025 at 6:58 PM
As @sgoodyear.bsky.social so eloquently conveys, dependence on a functioning car to satisfy the needs of life is the antithesis of ‘freedom.’
Fact. People perceive, appreciate, and use quality bike/ped/transit infrastructure.
Induced demand: it works for more than just cars
The latest evaluation of bike lane projects in Boston continues to show that if you build bike infrastructure, people will use it.
Full report: www.boston.gov/sites/defaul...
Full report: www.boston.gov/sites/defaul...
November 24, 2025 at 12:45 PM
Fact. People perceive, appreciate, and use quality bike/ped/transit infrastructure.
It’s late 2025, our earth is melting, mental and public ill-health are endemic, life’s unaffordable for most…and transportation consultancies are hiring highway engineers. smdh
November 23, 2025 at 12:22 AM
It’s late 2025, our earth is melting, mental and public ill-health are endemic, life’s unaffordable for most…and transportation consultancies are hiring highway engineers. smdh
Reposted by Seth LaJeunesse
In 1920 Buffalo’s International Railway Company, then managed by the Mitten Management Company of Philadelphia, raised streetcar fare from five cents to seven cents. Many Buffalonians resented the increase and blamed the management company. ...
November 21, 2025 at 12:23 PM
In 1920 Buffalo’s International Railway Company, then managed by the Mitten Management Company of Philadelphia, raised streetcar fare from five cents to seven cents. Many Buffalonians resented the increase and blamed the management company. ...
Auspicious start to the day 🌈 in Carrboro, NC
November 19, 2025 at 3:09 PM
Auspicious start to the day 🌈 in Carrboro, NC
Reposted by Seth LaJeunesse
This #WDoR2025, families are sharing their stories of loved ones lost to traffic violence. Their voices are the most powerful call for leaders to remember, support, and ACT – so everyone can move safely, no matter how they get around.
@familiesforsafestreets.org @roadtozero.bsky.social
@familiesforsafestreets.org @roadtozero.bsky.social
November 16, 2025 at 11:20 PM
This #WDoR2025, families are sharing their stories of loved ones lost to traffic violence. Their voices are the most powerful call for leaders to remember, support, and ACT – so everyone can move safely, no matter how they get around.
@familiesforsafestreets.org @roadtozero.bsky.social
@familiesforsafestreets.org @roadtozero.bsky.social