Arthur Yip
@arthurhcyip.bsky.social
Engineer modeling 🚗🚛🔌⛽ technoeconomics, markets, consumer choice, policies/regs, #MacroEnergySystems. PhD @CMU_EPP 🎓@TPPMIT @WaterlooENG 💻#tidyverse
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?
October 15, 2025 at 12:18 AM
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?
Just saw a random story about how an airport train will cost more than CAD$1.2B/km
www.yahoo.com/news/article...
www.yahoo.com/news/article...
‘Outdated’: Newark Airport to build new $3.5B AirTrain
NEWARK, N.J. (PIX11) — 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...
www.yahoo.com
October 15, 2025 at 12:05 AM
Just saw a random story about how an airport train will cost more than CAD$1.2B/km
www.yahoo.com/news/article...
www.yahoo.com/news/article...
I heard everyone is luckily physically ok.
August 21, 2025 at 4:32 AM
I heard everyone is luckily physically ok.
Reposted by Arthur Yip
I keep waiting for Marie Kondo to do an entire season on Netflix on tab management.
December 18, 2024 at 12:42 AM
I keep waiting for Marie Kondo to do an entire season on Netflix on tab management.
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.
August 12, 2025 at 8:54 PM
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.
Seems like he had plenty of advanced notice from Der Spiegel? Thank you for following up and finishing the job.
May 7, 2025 at 12:42 PM
Seems like he had plenty of advanced notice from Der Spiegel? Thank you for following up and finishing the job.
April 17, 2025 at 11:54 PM
Reposted by Arthur Yip
Here's the first thing I pulled out of it!
April 16, 2025 at 10:33 PM
Here's the first thing I pulled out of it!
The chaos is in the Wonder (0-5 toddler) section. (Mostly kidding)
March 23, 2025 at 3:16 AM
The chaos is in the Wonder (0-5 toddler) section. (Mostly kidding)
and what about the role of travel distances/quantity ?
February 6, 2025 at 4:20 PM
and what about the role of travel distances/quantity ?
Well, unfortunately, now politics has come for science
February 5, 2025 at 6:17 AM
Well, unfortunately, now politics has come for science