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triumus.bsky.social @triumus.bsky.social · 3h

Car noise is mostly tire noise. "No significant differences in A-weighted noise levels between different kinds of propulsion systems were found. However, there is a significant relationship between noise levels and vehicle net weight and tyre widths."

download.ssrn.com

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Reposted by @triumus.bsky.social

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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triumus.bsky.social @triumus.bsky.social · 29/09/2026

I love these, too, but then I always remember to cross-check with work participation rates (Germany ~80%, US ~60%).

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triumus.bsky.social @triumus.bsky.social · 27/09/2026

...unless you force pass holders to validate their pass before each ride 😉

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triumus.bsky.social @triumus.bsky.social · 25/09/2026

I suspect people willing to do landside train trips between connecting flights is just a miniscule market. Picking up your example, any reasonable person would simply do Beijing-Edinburgh via, say, Frankfurt or any other hub, instead of opting for 2 different London airports.

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triumus.bsky.social @triumus.bsky.social · 23/09/2026

The event commonly called "French Revolution" lead to a regime change. The event commonly called "Austro-Hungarian Compromise" didn't.

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triumus.bsky.social @triumus.bsky.social · 23/09/2026

That would make it the only "regime change" in history, where the exact same person ruled as a monarch over the exact same territory before and after the event. It was a federalization attempt that partially restored the status Hungary had before 1848 (nobody counts 1848 as a regime change either).

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triumus.bsky.social @triumus.bsky.social · 23/09/2026

Austria and Hungary were under consolidated Habsburg rule since 1526. What came into existence in 1867, was just the latest stage of a long constitutional evolution. The Republic of Venice, used for comparison's sake, had more dramatic constitutional shifts in its history.

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triumus.bsky.social @triumus.bsky.social · 23/09/2026

Astonishing.... TIL NYC spends (depending what numbers you want to use) 30-50k annually per child.

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triumus.bsky.social @triumus.bsky.social · 23/09/2026

Will have the same problems as recessed ground-lighting mid-term/long-term, i.e. water intrusion, frost damages...

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triumus.bsky.social @triumus.bsky.social · 22/09/2026

Ehre, wem Ehre gebührt: @bmgn.rs war damals mW der erste mit einer korrekten (öffentlichen) Einschätzung der Lage. Eventuell sollte man ihn nächstes Mal eher befragen als diese anderen "Verkehrsexperten"?

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triumus.bsky.social @triumus.bsky.social · 20/09/2026

In related news: Later this year, Line 22 will open, and Beijing will claim the last record NYC still holds, i.e. "most stations". In fairness, Beijing could be seen as already holding that record, depending on what lines and how you want to count transfer stations, but with Line 22 it's settled.

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triumus.bsky.social @triumus.bsky.social · 18/09/2026

This. 99% of EU regulations are an harmonization effort of pre-existing country-level regulations.

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triumus.bsky.social @triumus.bsky.social · 16/09/2026

For a change, I'm doubtful about the "especially within the NA traffic planning practice" part. I've read far too many stories in Europe like the one below. What struck me then was that large chunks of the dumb coverage were fuelled by Italian highway professionals - people who should know better...

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triumus.bsky.social @triumus.bsky.social · 16/09/2026

In 2025, Austria started rebuilding the Lueg bridge on the international Brenner highway, routinely reducing road capacity to 1 lane per direction. This lead to apocalyptic news coverage, with highway managers predicting "100 km long traffic jams". Unsurprisingly, nothing of this ever happened.

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triumus.bsky.social @triumus.bsky.social · 15/09/2026

I mean Frankfurt21 in its current iteration "Fernbahntunnel".

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triumus.bsky.social @triumus.bsky.social · 15/09/2026

The big lesson here is that nobody should ever try to relocate an entire railway node underground. But, anyways, München21 is unlikely to ever happen, and Frankfurt21 is much, much smaller in scope.

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triumus.bsky.social @triumus.bsky.social · 11/09/2026

Next in line: To what extent do you think the 'Glorious Revolution' was in reality a Dutch invasion?

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triumus.bsky.social @triumus.bsky.social · 09/09/2026

...and [ʃ] isn't covered at all, a sound omnipresent in all (?) modern European languages (including Italian).

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triumus.bsky.social @triumus.bsky.social · 08/09/2026

Isn't this a function of the UK attracting more immigrants with academic degrees (= higher socio-economic status to begin with) than continental Europe? Which, in turn, is downstream from the fact that English is - unlike German, Italian or Estonian - a global language in education?

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triumus.bsky.social @triumus.bsky.social · 07/09/2026

...I find these US-EU comparisons rarely insightful. General discourses around 'social cohesion', 'integration' and policies around legal and illegal immigration are so wildly different, that a comparison of isolated policy details will always fall flat.

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triumus.bsky.social @triumus.bsky.social · 07/09/2026

Did some light reading and it appears the NL started requiring immigrants to participate in a 12-month integration course in 2007, and added the requirement of language skills for social welfare schemes in 2016. Both times, there were major, extensive and highly polarized debates. But, honestly...

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triumus.bsky.social @triumus.bsky.social · 07/09/2026

Like... most of Europe? Don't know about the Dutch discourses, but in other countries it was framed as an attempt to force family patriarchs to allow their wives to get out of the house. Which is why many people on the letfist spectrum and social workers actually welcomed these policies.

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triumus.bsky.social @triumus.bsky.social · 02/09/2026

"Nationalism" is one of those terms where there is the greatest discrepancy between its academic usage and its popular understanding. >90% of the world's population subscribe to nationalist ideas, but most of them would probably deny to hold nationalist views...

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triumus.bsky.social @triumus.bsky.social · 01/09/2026

...is nationalism? Why was it so successful as an ideological framework? Why do most countries on earth claim to represent a nation? But I'm sure it largely depends on what your teacher is willing or keen to do.

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triumus.bsky.social @triumus.bsky.social · 01/09/2026

You start talking more about abstract concepts (the level of "detail" actually diminished, in my personal experience). The third time we reached the 18th/19th century, we barely discussed names, events, or year numbers or who waged war against whom. We focussed,instead, on questions like: What...

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triumus.bsky.social @triumus.bsky.social · 28/08/2026

It should be noted, though, that these institutions aren't particularly difficult to understand, they're just unusually named. The 'European Council' should be the 'Presidency of the EU', the 'Council of the EU' should be the 'Senate' or 'Upper House', the 'Commission' should be the 'Government'...

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triumus.bsky.social @triumus.bsky.social · 26/08/2026

Honestly, I'd really like to see a study about actual bidet usage in Italy... I suspect it's much lower than what's publicly claimed.

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triumus.bsky.social @triumus.bsky.social · 23/08/2026

The most interesting part: "[...] as well as compromise its ability to strike third-party trade agreements. The White House official said the latter request was related to “economic cooperation and security,” not precluding Canada from making third-party deals. " Sounds like gaslighting....

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triumus.bsky.social @triumus.bsky.social · 21/08/2026

Using Chinese characters for agglutinative languages is right up there.

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triumus.bsky.social @triumus.bsky.social · 21/08/2026

Yes, but why didn't they go for St Pancras? Feels like a very obvious mistake that the national and international long-distance services won't connect...

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triumus.bsky.social @triumus.bsky.social · 20/08/2026

Oh, correction: The new airport is supposed to be served by... an entirely new line? Some sort of Crossrail that connects the old and the new airport, while also hitting downtown, seemingly using the same corridor as the HSR line? But wasn't the old airport supposed to be shut down?

timeoutdubai.com

Plans revealed for a new Dubai Metro airport express line connecting DXB and Al Maktoum | Time Out Dubai

The proposed line would connect Dubai International Airport (DXB) and Al Maktoum International Airport (DWC) and include five Dubai Metro stations.

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triumus.bsky.social @triumus.bsky.social · 20/08/2026

4) There are no plans for a HSR stop around Jumeirah and no interchange stations between the HSR and conventional line. Dubai's 2nd stop will be located near the Expo City, which likely means the new Al Maktoum Airport won't be served directly (but either via the Red Line or dedicated people mover).

timeoutdubai.com

UAE's new High Speed Rail: Here's where the 6 stations will be located | Time Out Dubai

The United Arab Emirates is getting a High Speed Rail that will make journeys between Dubai and Abu Dhabi just 30 minutes long. And this is where it will travel to

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triumus.bsky.social @triumus.bsky.social · 20/08/2026

3) The alignment of the planned Abu Dhabi–Dubai HSR line within the city. Its terminal station will be served by the Green Line and the u/c Blue Line, whose two branches - inexplicably - won't be mere extensions of the Green Line and the Red Line.

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triumus.bsky.social @triumus.bsky.social · 20/08/2026

2) Two interchange stations between the Gold Line (I guess, "Yellow Line" was never an option) and the new conventional railway line.

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triumus.bsky.social @triumus.bsky.social · 20/08/2026

I somehow missed that Dubai published a map of its "Rail Network Plan 2032" earlier this year. It's interesting from multiple perspectives, as it shows...

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triumus.bsky.social @triumus.bsky.social · 19/08/2026

There's that tendency, but talking about Campania and Naples typically triggers the worst stereotypisation among Italians (even true among southerners).

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triumus.bsky.social @triumus.bsky.social · 14/08/2026

Genuine question: Can anyone explain to me why Dubai Metro is building this branched Blue Line instead of just extending the Red and Green Lines?

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triumus.bsky.social @triumus.bsky.social · 14/08/2026

Which leads us again to the question: What percentage of those "monthly active users" on X are bots? What evidence is out there these massive growth numbers in Nigeria and Indonesia reflect an actual growing user base?

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triumus.bsky.social @triumus.bsky.social · 13/08/2026

South Tyrol - otherwise a good example for excellent public transport in a mostly rural area - doesn't put signs with the name of the bus stops at the bus stops. I find this bewildering, it's such a transparent and economic way to communicate to people what bus stop they are currently at.

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triumus.bsky.social @triumus.bsky.social · 06/08/2026

A million different lines in India. themetrorailguy.com is an ugly website, but an incredible ressource, with maps, cost estimates...

themetrorailguy.com

The Metro Rail Guy

Chronicling the Progress of India's Metro Systems

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triumus.bsky.social @triumus.bsky.social · 05/08/2026

What strikes me the most here is the dumb law telling jurisdictions how they need to spend their money and at what percentages.

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Reposted by @triumus.bsky.social

Kevin Wilson @kwilsonhfx.bsky.social · 01/08/2026

Shocking.

NTSB graph showing the relationship between miles biked per person per year and cyclists killed per billion miles biked. There's an obvious negative trend (people bike more in place where it's safer to do so.

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