Arthur Yip's Avatar

Arthur Yip

@arthurhcyip.bsky.social

Engineer modeling πŸš—πŸš›πŸ”Œβ›½ technoeconomics, markets, consumer choice, policies/regs, #MacroEnergySystems. PhD @CMU_EPP πŸŽ“@TPPMIT @WaterlooENG πŸ’»#tidyverse

159 Followers  |  845 Following  |  27 Posts  |  Joined: 07.11.2024  |  2.5244

Latest posts by arthurhcyip.bsky.social on Bluesky

Interesting how the Olympics and Expo seem to have accelerated timelines for transit line decision/implementation/construction (though there was a lot of groundwork before those to set up the right conditions). Do other cities get transit built via big events?

15.10.2025 00:18 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
β€˜Outdated’: Newark Airport to build new $3.5B AirTrain NEWARK, N.J. (PIX11) β€” It’s how you get to where you’re going before you get to where you’re going. Newark Liberty’s AirTrain began rolling during the Clinton administration. Some 30 years later, it’s...

Just saw a random story about how an airport train will cost more than CAD$1.2B/km
www.yahoo.com/news/article...

15.10.2025 00:05 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I heard everyone is luckily physically ok.

21.08.2025 04:32 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I keep waiting for Marie Kondo to do an entire season on Netflix on tab management.

18.12.2024 00:42 β€” πŸ‘ 34    πŸ” 8    πŸ’¬ 1    πŸ“Œ 1

SUVs flip more easily :( looks like the flipped car was turning left (into a bikeway with extra curbs) and the other SUV crashed into them.

12.08.2025 20:54 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image Post image Post image Post image

@visionzerovancouver.ca from a friend: large SUVs colliding on the midtown bikeway

12.08.2025 00:43 β€” πŸ‘ 7    πŸ” 1    πŸ’¬ 2    πŸ“Œ 0
Preview
Exclusive: NSF faces radical shake-up as officials abolish its 37 divisions Changes seen as a response to presidential directives on what research to fund

Exclusive: National Science Foundation staff were told today that the agency’s 37 divisionsβ€”across all eight directoratesβ€”are being abolished and the number of programs within those divisions will be drastically reduced.

08.05.2025 23:35 β€” πŸ‘ 2112    πŸ” 1542    πŸ’¬ 155    πŸ“Œ 441

Seems like he had plenty of advanced notice from Der Spiegel? Thank you for following up and finishing the job.

07.05.2025 12:42 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Great opportunity to electrify Canada Post. #cdnpoli #canpoli

17.04.2025 23:54 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Amazing.

16.04.2025 02:33 β€” πŸ‘ 270    πŸ” 40    πŸ’¬ 3    πŸ“Œ 1
Post image

AEO 2025 is out!

16.04.2025 22:34 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
Post image

AEO 2025 is out!

16.04.2025 22:34 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
Post image

Here's the first thing I pulled out of it!

16.04.2025 22:32 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

The chaos is in the Wonder (0-5 toddler) section. (Mostly kidding)

23.03.2025 03:16 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Slide by @toderianUW.bsky.social saying β€œAdding car lanes to deal with traffic congestion is like loosening your belt to cure obesity.β€œ – Lewis Mumford, 1955

Slide by @toderianUW.bsky.social saying β€œAdding car lanes to deal with traffic congestion is like loosening your belt to cure obesity.β€œ – Lewis Mumford, 1955

It's a goal of mine to help make this the most famous, well-known and UNDERSTOOD quote about cities in history. Please share it as much as you can. #InducedDemand

18.01.2025 03:16 β€” πŸ‘ 2031    πŸ” 722    πŸ’¬ 46    πŸ“Œ 29

You know what AI is decent at? Pattern recognition. So, it would be good at funding the same things that have been always been funded. That's not how we get the next cutting edge discoveries. That's not a meritocracy, that's legacy admissions.

10.02.2025 05:32 β€” πŸ‘ 92    πŸ” 12    πŸ’¬ 4    πŸ“Œ 1
Charts show activity of cars/LDVs

Parked 94.1% of the time on weekdays, 95.4% on weekends

Charts show activity of cars/LDVs Parked 94.1% of the time on weekdays, 95.4% on weekends

Charts show the activity of local, regional and long-haul trucks by time of day, largely parked (on average 56% of the time on weekdays for long-haul trucks, with a minimum of 40%. 90% of time for local trucks on weekends).

Charts show the activity of local, regional and long-haul trucks by time of day, largely parked (on average 56% of the time on weekdays for long-haul trucks, with a minimum of 40%. 90% of time for local trucks on weekends).

The reason why EVs are such a great opportunity for a renewables-based power system (or any power system, for that matter), and why we need universal charging while parked: cars, and even heavy-duty vehicles: parked most of the time > demand flexibility through smart charging!

13.01.2025 15:05 β€” πŸ‘ 16    πŸ” 7    πŸ’¬ 2    πŸ“Œ 1

That's up to 10,000 minutes per year, excluding any evening or weekend trips. 170 hours β€” a full week. Multiplied by hundreds of thousands or millions of people.

08.02.2025 03:40 β€” πŸ‘ 78    πŸ” 17    πŸ’¬ 0    πŸ“Œ 1

A month into congestion pricing and my bus commute into NYC is consistently 15-20 min faster each way, no matter what time of day I travel. It has given me 40 minutes of my life back. I work in midtown and crossing the street is no longer gridlock.

07.02.2025 20:52 β€” πŸ‘ 692    πŸ” 130    πŸ’¬ 7    πŸ“Œ 7
Preview
Elon Musk’s DOGE Is Working on a Custom Chatbot Called GSAi The chatbot is part of Elon Musk and President Donald Trump’s ambitions to use AI and other technologies to cut costs and modernize the US government.

SCOOP: Elon Musk’s DOGE Is Working on a Custom Chatbot Called GSAi, @peard33.bsky.social, @makenakelly.bsky.social and @zoeschiffer.bsky.social report www.wired.com/story/doge-c...

07.02.2025 02:27 β€” πŸ‘ 228    πŸ” 118    πŸ’¬ 31    πŸ“Œ 26
Preview
The US Government Is Not a Startup Elon Musk is moving fast and breaking things that can’t afford to be broken.

The thing about running the federal government like a software startup is that most software startups fail www.wired.com/story/the-us...

07.02.2025 12:44 β€” πŸ‘ 917    πŸ” 283    πŸ’¬ 25    πŸ“Œ 16

and what about the role of travel distances/quantity ?

06.02.2025 16:20 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image

Comparison of per-capita road-transport emissions in selected countries.
β–ΈNorway has made great strides in turning its passenger-car fleet over to battery-electric, with >90% of new cars BEV, and share of the car fleet passing 27%.
But doesn't have the lowest road-transport emissions per capita. 1/2

06.02.2025 15:01 β€” πŸ‘ 67    πŸ” 31    πŸ’¬ 10    πŸ“Œ 3

Well, unfortunately, now politics has come for science

05.02.2025 06:17 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Science funding agency threatened with mass layoffs National Science Foundation staff heard the plans at a meeting Tuesday.

NSF to lay off nearly half of its staff in the next two months. www.politico.com/news/2025/02...

04.02.2025 23:37 β€” πŸ‘ 72    πŸ” 60    πŸ’¬ 7    πŸ“Œ 14

A pretty simple way to exemplify America First.
Maybe even a grudge with Bill Gates?
Test case on how to illegally dismantle a government agency? And test the public reaction?

05.02.2025 05:45 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
The broligarchs have a vision for the new Trump term. It’s darker than you think. ο»ΏThe real reason Musk, Zuckerberg, and Bezos are supporting Trump.

www.vox.com/future-perfe...

04.02.2025 08:14 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Preview
β€˜Oh well’: Musk responds to Ontario’s termination of $100M Starlink contract | Globalnews.ca Doug Ford says the Ontario government is 'ripping up' its $100-million contract with Elon Musk’sΒ Starlink to provide high-speed internet to northern and rural communities.

Elon Musk: Oh Well globalnews.ca/news/1099566...

03.02.2025 21:24 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

@arthurhcyip is following 20 prominent accounts