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In my limited railfan life, I also once visited the Tehachapi Loop in California, which is also a wild sight to see. But I can imagine someone out there is visiting all of these engineerings feats.

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But Norfolk Southern rebuilt everything, and apparently a train traveled through here earlier this year. I’ll be up there later today and grab some photos.

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Huge sections of track got wiped out when Helene hit back in 2024.

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Paul Supawanich @paulsupa.bsky.social · 26/09/2026

Railroad loops mini-thread: I’m up in Western North Carolina today and one of the cool things in this area are the Old Fort Loops, a set of track bringing trains up over 1000’ from the east towards Asheville.

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TIL: The mighty Colorado River is basically sucked dry of water from it's headwaters on it's journey to Mexico, such that upon its crossing of the border, it basically drys out and no longer makes it to the ocean. Here's the last extraction point (for irrigation) near the border at Yuma, AZ.

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Paul Supawanich @paulsupa.bsky.social · 25/09/2026

It's been impressive to watch the expansion of cycling infrastructure around Georgia Tech's campus in the past few years, and it's evident in the parking demand. This new parking area was just installed in August, and the uptake has been immediate!

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Paul Supawanich @paulsupa.bsky.social · 25/09/2026

After a long hiatus... I am back on Bluesky! This fall, I started teaching urban transportation at Georgia Tech and have been putting together highlights of the class (from my perspective) in short videos. Here's the first one (and I'll also share other random facts from my research here)

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Paul Supawanich @paulsupa.bsky.social · 19/04/2025

When the sketch actually turns into reality. 💯💯💯 📍Georgia Tech campus, Atlanta

Paul Supawanich @paulsupa.bsky.social · 08/04/2025

Atlanta's Eastside Beltline Trail meets the 10th St, an orchestra of movements, but nicely done to prioritize the pedestrians and cyclists on a warm spring day.

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Reposted by Paul Supawanich

Peter Norton @norton.bsky.social · 05/04/2025

Statistics: • America’s road traffic safety record is a disaster. The US Secretary of Transportation: • Keeping driving everybody. Rail transit is the safety disaster.

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Paul Supawanich @paulsupa.bsky.social · 05/04/2025

However, despite efforts otherwise, Milan's vehicle ownership per capita has only gone up in recent years, which has meant, cars parked **everywhere* What you're seeing is vehicles who use the sidewalk as block-long driveways to park in any space possible. Unlawful, but unenforced.

Paul Supawanich @paulsupa.bsky.social · 05/04/2025

Greetings from Milan’s Corso Buenos Aires, one of Europe’s busiest shopping streets. Even though the transformation of vehicle lanes to bicycle lanes isn't done, the lanes are full—and local businesses are going benefit!

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Paul Supawanich @paulsupa.bsky.social · 25/12/2024

After 11 years, Atlanta's 10th Street cycletrack is finally receiving some important protection upgrades!

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Reposted by Paul Supawanich

Paul Supawanich @paulsupa.bsky.social · 18/12/2024

If you love cities, cycling, and are passionate about collecting and telling stories with data, we may have a unique role for you: We're seeking our first Data Associate to work on our Bloomberg Initiative for Cycling Infrastructure -- more here! globaldesigningcities.org/about/careers/

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Paul Supawanich @paulsupa.bsky.social · 18/12/2024

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Paul Supawanich @paulsupa.bsky.social · 06/12/2024

Creating a cycling city starts with safe infrastructure, but in many countries access to good bicycles is not far behind. This week, we got a tour of Fortaleza's new city-sponsored "bicycle rehabilitation center" to help fix donated bikes to be given back to the community. It's the first in Brazil!

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Paul Supawanich @paulsupa.bsky.social · 20/11/2024

Random hobby: taking photographs of post offices and finding doppelgängers in different corners of the US. 📍 Rockmart, GA please meet 📍Lewistown, IL

Paul Supawanich @paulsupa.bsky.social · 15/11/2024

Planning school: zoning transects Atlanta: hold my beer

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Reposted by Paul Supawanich

Benjamin Schneider @benschneider.bsky.social · 15/11/2024

And because of that, Caltrain can offer 25% faster travel times, and 20% more service, with the same number of trains as before. benjaminschneider.substack.com/p/the-magic-...

benjaminschneider.substack.com

The Magic of Electrified Trains

Electrified Caltrain service will finally demonstrate the benefits of this proven technology to American cities

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Paul Supawanich @paulsupa.bsky.social · 14/11/2024

Unfortunately, these are no @worldbollardassoc.bsky.social infrastructure, but soda cans in post holes. Some already were mowed over last week.

Paul Supawanich @paulsupa.bsky.social · 14/11/2024

New Beltline segment and 10th/Monroe crossing opened this week with some new features! - tighter turn radius (slower turns) - raised table intersection - bollards protecting the corners - fresh kermit Perfect fall day was a bonus. (video at 3x to show the full cycle)

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Paul Supawanich @paulsupa.bsky.social · 13/11/2024

I've since moved to Atlanta and this is always one of the places I try mention to visitors to check out! the Marriott Atrium is next level.

Paul Supawanich @paulsupa.bsky.social · 13/11/2024

This one was a bit opportunistic, ladder found by side of the road needed a new home. One bungee and zero tailgaters later.

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Paul Supawanich @paulsupa.bsky.social · 13/11/2024

This week on the app has some real "old friends stroll into a party with my new friends" energy and it is awesome.

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Paul Supawanich @paulsupa.bsky.social · 07/09/2024

While Atlanta has gradually become more friendly to bike, Georgia Tech is delivering some impressive projects to connect campus (and Midtown Atlanta) for those walking and rolling.

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Paul Supawanich @paulsupa.bsky.social · 04/09/2024

New research coming out of Toronto Met. University showing the magnitude of Toronto's cycle network growth (by type) over the past 15 years. Today's story: If they're building it, it's separated or a cycletrack.

Paul Supawanich @paulsupa.bsky.social · 31/08/2024

Atlantans: The next time there is a transportation crisis, rest assured that HoneyBaked Ham was a contender for your emergency catering services.

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Paul Supawanich @paulsupa.bsky.social · 29/08/2024

Of course that approach doesn't work for everyone, like the Russian Embassy.

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Paul Supawanich @paulsupa.bsky.social · 29/08/2024

On certain corridors, they have been quite aggressive in taking land (with compensation) to complete the corridors and in some cases negotiating buildings rehab their facade to accommodate the pedestrian paths.

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Paul Supawanich @paulsupa.bsky.social · 29/08/2024

Greetings from Addis Ababa, where they are building a whopping 100km of cycling infrastructure (50km of which was delivered in the past **6 months**)

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Paul Supawanich @paulsupa.bsky.social · 21/07/2024

Does anyone know why transit cars in Japan have embossed numbers? Super small detail, but very classy.

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Paul Supawanich @paulsupa.bsky.social · 21/07/2024

Japan: a masterclass in all-weather kid transportation by bike.

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Paul Supawanich @paulsupa.bsky.social · 25/06/2024

Whenever I need a quick boost of amusement, I turn to the city procurement instagram where someone made a bid that was 41000000% higher than the others, yet still placed middle of the pack.

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Paul Supawanich @paulsupa.bsky.social · 24/06/2024

Is it just transportation where stock photo irony is just rampant?

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Paul Supawanich @paulsupa.bsky.social · 23/06/2024

I love that for every person who says: "you can't expect someone to carry [that] on a bike." There is a photo of someone carrying [that] on a bike.

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Paul Supawanich @paulsupa.bsky.social · 22/06/2024

Transportation is one of the leading source of carbon emissions yet it’s “business as usual” for most state DOTs. In a first, the Hawaii State DOT was legally challenged for their fossil-fuel driven priorities and lost. www.theguardian.com/us-news/arti...

theguardian.com

Youth activists win ‘unprecedented’ climate settlement in Hawaii

State’s transport department given a 2045 deadline to fully decarbonize and achieve zero emissions under agreement

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Paul Supawanich @paulsupa.bsky.social · 25/10/2023

This is how they confirm you are not a child. I'm gutted.

Paul Supawanich @paulsupa.bsky.social · 19/10/2023

Everytime I'm at the Atlanta airport, I like to check in on the (now-defunct) Relay bikeshare bike that refuses to go quietly into the night. This city desperately is missing a robust and reliable bikeshare system.

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Paul Supawanich @paulsupa.bsky.social · 18/10/2023

As much as I curse the tepid protection on the 10th Street Cycletrack, something has clearly changed in the past year. Now, after every major event, the delineators are replaced in full with new ones! Progress!