Eric Goldwyn
@egoldwyn.bsky.social
NYU Marron | transitcosts.com | All Mets Grid | Drive the foreign
@galvinalmanza.bsky.social I read your op-ed, congrats! I wanted to ask if the person you defended was a bus or subway rider? The set up suggested a bus rider, but the precise phrase you used was “public transit.” Thank you
February 16, 2026 at 12:02 PM
@galvinalmanza.bsky.social I read your op-ed, congrats! I wanted to ask if the person you defended was a bus or subway rider? The set up suggested a bus rider, but the precise phrase you used was “public transit.” Thank you
Reposted by Eric Goldwyn
Seamless Bay Area on Service-Led Planning and how it can help regional network management in the Bay, including:
1. Better transfers;
2. Incremental upgrades to speed, reliability and frequency;
3. More cost effective capital project selection and development.
www.seamlessbayarea.org/blog/2026/2/...
1. Better transfers;
2. Incremental upgrades to speed, reliability and frequency;
3. More cost effective capital project selection and development.
www.seamlessbayarea.org/blog/2026/2/...
February 14, 2026 at 2:02 AM
Seamless Bay Area on Service-Led Planning and how it can help regional network management in the Bay, including:
1. Better transfers;
2. Incremental upgrades to speed, reliability and frequency;
3. More cost effective capital project selection and development.
www.seamlessbayarea.org/blog/2026/2/...
1. Better transfers;
2. Incremental upgrades to speed, reliability and frequency;
3. More cost effective capital project selection and development.
www.seamlessbayarea.org/blog/2026/2/...
Reposted by Eric Goldwyn
✨ introducing… ✨
🌇 Transportation for the Abundant Society 🚅
"Abundance" says our problem is artificial scarcity—especially housing. But you can’t build your way out if transportation policy still treats traffic flow as sacred.
Transportation is the binding constraint. ssrn.com/abstract=538...
🌇 Transportation for the Abundant Society 🚅
"Abundance" says our problem is artificial scarcity—especially housing. But you can’t build your way out if transportation policy still treats traffic flow as sacred.
Transportation is the binding constraint. ssrn.com/abstract=538...
February 11, 2026 at 4:27 PM
✨ introducing… ✨
🌇 Transportation for the Abundant Society 🚅
"Abundance" says our problem is artificial scarcity—especially housing. But you can’t build your way out if transportation policy still treats traffic flow as sacred.
Transportation is the binding constraint. ssrn.com/abstract=538...
🌇 Transportation for the Abundant Society 🚅
"Abundance" says our problem is artificial scarcity—especially housing. But you can’t build your way out if transportation policy still treats traffic flow as sacred.
Transportation is the binding constraint. ssrn.com/abstract=538...
Reposted by Eric Goldwyn
Since we're crayoning:
Here's a challenge.
Pick a metro area.
You can build 10 miles subway, 20 miles elevated rail, or 40 miles at grade (street, freeway, rail ROW) rail (or any suitably weighted combination.)
Where do you put it for max ridership?
How do you adjust the bus network to work with it?
Here's a challenge.
Pick a metro area.
You can build 10 miles subway, 20 miles elevated rail, or 40 miles at grade (street, freeway, rail ROW) rail (or any suitably weighted combination.)
Where do you put it for max ridership?
How do you adjust the bus network to work with it?
February 9, 2026 at 2:19 PM
Since we're crayoning:
Here's a challenge.
Pick a metro area.
You can build 10 miles subway, 20 miles elevated rail, or 40 miles at grade (street, freeway, rail ROW) rail (or any suitably weighted combination.)
Where do you put it for max ridership?
How do you adjust the bus network to work with it?
Here's a challenge.
Pick a metro area.
You can build 10 miles subway, 20 miles elevated rail, or 40 miles at grade (street, freeway, rail ROW) rail (or any suitably weighted combination.)
Where do you put it for max ridership?
How do you adjust the bus network to work with it?
Reposted by Eric Goldwyn
Very excited to say that the stars have aligned and NYU Marron/Transit Costs Project have landed a grant that will fund a second edition of Momentum, which will apply the high-throughput framework to major regional rail networks beyond the NY area.
Our three big new cases:
- NJT
- SEPTA
- METRA
Our three big new cases:
- NJT
- SEPTA
- METRA
The NYU-Marron report on electrification is out: It pairs electrification and other components to develop a high-throughput infrastructure design framework, which slashes time off of existing commuter and inter-city passenger rail services. We call it Momentum -- transitcosts.com/wp-content/u...
February 9, 2026 at 4:33 PM
Very excited to say that the stars have aligned and NYU Marron/Transit Costs Project have landed a grant that will fund a second edition of Momentum, which will apply the high-throughput framework to major regional rail networks beyond the NY area.
Our three big new cases:
- NJT
- SEPTA
- METRA
Our three big new cases:
- NJT
- SEPTA
- METRA
“But having read more non-fiction about whaling after my “Moby Dick” re-read, I now know this is not true.”
February 5, 2026 at 11:39 AM
“But having read more non-fiction about whaling after my “Moby Dick” re-read, I now know this is not true.”
It is amazing what gets into the public domain:
February 3, 2026 at 12:26 AM
It is amazing what gets into the public domain:
And @ndhapple.bsky.social. This was his idea!!!!
Our A Better Billion report is up on our site. It’s a great site. @27a01.bsky.social, @eensari.bsky.social, @vanshnookenraggen.com, and @alonlevy.bsky.social did a great job: transitcosts.com/a-better-bil...
A Better Billion
transitcosts.com
February 2, 2026 at 7:24 PM
And @ndhapple.bsky.social. This was his idea!!!!
Our A Better Billion report is up on our site. It’s a great site. @27a01.bsky.social, @eensari.bsky.social, @vanshnookenraggen.com, and @alonlevy.bsky.social did a great job: transitcosts.com/a-better-bil...
A Better Billion
transitcosts.com
February 2, 2026 at 7:17 PM
Our A Better Billion report is up on our site. It’s a great site. @27a01.bsky.social, @eensari.bsky.social, @vanshnookenraggen.com, and @alonlevy.bsky.social did a great job: transitcosts.com/a-better-bil...
Citylab and @benschneider.bsky.social covered A Better Billion, too. They also had the wisdom to include the killer gif @27a01.bsky.social made showing how the system expands over time.
www.bloomberg.com/news/article...
www.bloomberg.com/news/article...
Forget Free NYC Buses: Just Build 41 Miles of New Subways
Fare-free bus service in New York City would cost around $1 billion per year. A new report proposes spending that on a “transformative” transit expansion instead.
www.bloomberg.com
February 1, 2026 at 7:12 PM
Citylab and @benschneider.bsky.social covered A Better Billion, too. They also had the wisdom to include the killer gif @27a01.bsky.social made showing how the system expands over time.
www.bloomberg.com/news/article...
www.bloomberg.com/news/article...
“The public kept expecting Necker’s brilliance to save the country, and he kept not saving it and being reappointed and refired.”
February 1, 2026 at 5:06 PM
“The public kept expecting Necker’s brilliance to save the country, and he kept not saving it and being reappointed and refired.”
Reposted by Eric Goldwyn
It has been fun working on the A Better Billion project over the last couple of months. You can check out the full StoryMap here: transitcosts.com/a-better-bil...
Also the gift article link to the NYT coverage of our plan;
www.nytimes.com/2026/01/30/n...
Also the gift article link to the NYT coverage of our plan;
www.nytimes.com/2026/01/30/n...
Free Buses? How About Expanding the Subway by 41 Miles Instead?
www.nytimes.com
January 30, 2026 at 12:23 PM
It has been fun working on the A Better Billion project over the last couple of months. You can check out the full StoryMap here: transitcosts.com/a-better-bil...
Also the gift article link to the NYT coverage of our plan;
www.nytimes.com/2026/01/30/n...
Also the gift article link to the NYT coverage of our plan;
www.nytimes.com/2026/01/30/n...
Reposted by Eric Goldwyn
I am now off the clock, so I am officially, formally, incredibly thrilled that 'A Better Billion' is now in the world. And it's absolutely surreal to help with something that ends up with a feature in The New York Times. -- transitcosts.com/a-better-bil...
A Better Billion
transitcosts.com
January 30, 2026 at 11:38 PM
I am now off the clock, so I am officially, formally, incredibly thrilled that 'A Better Billion' is now in the world. And it's absolutely surreal to help with something that ends up with a feature in The New York Times. -- transitcosts.com/a-better-bil...
Reposted by Eric Goldwyn
We're proud to present A Better Billion: how New York should be spending an extra $1b a year on subway expansion, in lieu of Zohran Mamdani's free bus proposal. transitcosts.com/a-better-bil...
See gift article for a New York Times writeup here:
www.nytimes.com/2026/01/30/n...
See gift article for a New York Times writeup here:
www.nytimes.com/2026/01/30/n...
Free Buses? How About Expanding the Subway by 41 Miles Instead?
www.nytimes.com
January 30, 2026 at 12:17 PM
We're proud to present A Better Billion: how New York should be spending an extra $1b a year on subway expansion, in lieu of Zohran Mamdani's free bus proposal. transitcosts.com/a-better-bil...
See gift article for a New York Times writeup here:
www.nytimes.com/2026/01/30/n...
See gift article for a New York Times writeup here:
www.nytimes.com/2026/01/30/n...
41 miles of new subway for the cost of free buses. Here’s an audacious, expansive plan to expand the subway’s reach & catalyze housing to attack the affordability crisis. An incredible effort from NYU Marron team. Excited for this to be out in the world:
www.nytimes.com/2026/01/30/n...
www.nytimes.com/2026/01/30/n...
Free Buses? How About Expanding the Subway by 41 Miles Instead?
www.nytimes.com
January 30, 2026 at 2:37 PM
41 miles of new subway for the cost of free buses. Here’s an audacious, expansive plan to expand the subway’s reach & catalyze housing to attack the affordability crisis. An incredible effort from NYU Marron team. Excited for this to be out in the world:
www.nytimes.com/2026/01/30/n...
www.nytimes.com/2026/01/30/n...
Lots of great stuff in this @davecolon.bsky.social joint. Just yesterday I was thinking the vote for best New Yorker was between David Stearns and Zohran Mamdani. Janno said, hold my baseball book babe ruth’s widow.
nyc.streetsblog.org/2026/01/21/i...
nyc.streetsblog.org/2026/01/21/i...
INTERVIEW: MTA Chair Janno Lieber Talks to Streetsblog to Mark Four Years at the Top - Streetsblog New York City
MTA chairman Janno Lieber sat down with Streetsblog for an in-depth interview about his tenure, congestion pricing, buses and more.
nyc.streetsblog.org
January 22, 2026 at 9:34 PM
Lots of great stuff in this @davecolon.bsky.social joint. Just yesterday I was thinking the vote for best New Yorker was between David Stearns and Zohran Mamdani. Janno said, hold my baseball book babe ruth’s widow.
nyc.streetsblog.org/2026/01/21/i...
nyc.streetsblog.org/2026/01/21/i...
“Simcoe was that rare Britisher, apparently, who saw the advantage of not wearing red uniforms in forest combat.”
January 22, 2026 at 5:36 PM
“Simcoe was that rare Britisher, apparently, who saw the advantage of not wearing red uniforms in forest combat.”
The ultimate sign of bookstore class and erudition
January 22, 2026 at 2:37 PM
The ultimate sign of bookstore class and erudition
Reposted by Eric Goldwyn
HARDHAT HOCHUL: Guv’s transit ambitions could put MTA on track for biggest expansion in decades
“She’s building a transit legacy for herself.”
NEW Sunday read in @thecity.nyc
www.thecity.nyc/2026/01/18/t...
“She’s building a transit legacy for herself.”
NEW Sunday read in @thecity.nyc
www.thecity.nyc/2026/01/18/t...
With Multiple Train Megaprojects Ahead, Hochul Builds Her ‘Transit Legacy’
The governor has hopes of planning and potentially building multiple transit-system extensions at once.
www.thecity.nyc
January 18, 2026 at 7:41 PM
HARDHAT HOCHUL: Guv’s transit ambitions could put MTA on track for biggest expansion in decades
“She’s building a transit legacy for herself.”
NEW Sunday read in @thecity.nyc
www.thecity.nyc/2026/01/18/t...
“She’s building a transit legacy for herself.”
NEW Sunday read in @thecity.nyc
www.thecity.nyc/2026/01/18/t...
Reposted by Eric Goldwyn
Folks, any help with populating this map of bus and tram boarding policies in South America would be most welcome!
I suspect that 99% of cities are front-door boarding-only outside of BRT systems (so B*) and eventually trams (the few existing systems) but I'd appreciate more detail!
I suspect that 99% of cities are front-door boarding-only outside of BRT systems (so B*) and eventually trams (the few existing systems) but I'd appreciate more detail!
January 16, 2026 at 9:19 PM
Folks, any help with populating this map of bus and tram boarding policies in South America would be most welcome!
I suspect that 99% of cities are front-door boarding-only outside of BRT systems (so B*) and eventually trams (the few existing systems) but I'd appreciate more detail!
I suspect that 99% of cities are front-door boarding-only outside of BRT systems (so B*) and eventually trams (the few existing systems) but I'd appreciate more detail!
Read the new 125th street subway feasibility study. It’s well done report. Every project in the US should have something like this! There are still questions: Why are stations so deep? Why are stations 75 feet wide? If serious, let’s seriously plan the tunnel sequence.
www.mta.info/document/196...
www.mta.info/document/196...
www.mta.info
January 15, 2026 at 1:00 AM
Read the new 125th street subway feasibility study. It’s well done report. Every project in the US should have something like this! There are still questions: Why are stations so deep? Why are stations 75 feet wide? If serious, let’s seriously plan the tunnel sequence.
www.mta.info/document/196...
www.mta.info/document/196...
When I start a burner account this will be my profile picture. HT: @27a01.bsky.social
January 14, 2026 at 1:00 AM
When I start a burner account this will be my profile picture. HT: @27a01.bsky.social
“The subways created the modern Bronx and the highways almost destroyed it.”
January 11, 2026 at 8:03 PM
“The subways created the modern Bronx and the highways almost destroyed it.”