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Posts by Luyu Liu

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Another reminder to do toilet accessibility

5 months ago 1 0 0 0

So bus fare evasion explosion actually did not start as soon as the MTA started collecting fares after the Covid free buses period – at that point, evasion was not that different from pre-Covid. It was more closely associated with the OMNY rollout, which starting getting people off of passes.

5 months ago 41 9 8 2

oh did I mention that that's my own paper?

1 year ago 0 0 0 0

You know the publication industry is so not well when you clicked in a journal article and your Rakuten plug-in reminds you there are three available coupons for this website

1 year ago 0 0 0 1

Yes.

1 year ago 3741 185 37 2
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Our new paper at TR-D authors.elsevier.com/a/1kGKc4rgZi...

We use large-scale mobile device location data to infer the evacuation behavior during Hurricane Ian in 2022. The landfall area has much lower evacuation rate but higher partially-compliant rate, correlated with late order in the area.

1 year ago 0 0 0 0
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Seattle's Sound Transit light rail system carried 106,000 riders on the average weekday in October, reaching a monthly record of more than 3 million trips www.soundtransit.org/ride-with-us...

Ridership has been powered by extensions to Northgate (2021), Lynnwood (2024) & Bellevue (2024).

1 year ago 110 13 2 6
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believe it or not, we did a paper on this: www.sciencedirect.com/science/arti...

There were 200 - 800 people with mobility disabilities in Columbus Ohio who were actively using public transit service, even in the worst days of COVID. That number sometimes exceeded the **paratransit users**.

1 year ago 15 0 0 0

believe it or not, we did a paper on this: www.sciencedirect.com/science/arti...

There were 200 - 800 people with mobility disabilities in Columbus Ohio who were actively using public transit service, even in the worst days of COVID. That number sometimes exceeded the **paratransit users**.

1 year ago 9 0 0 0
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How climate risks are driving up insurance premiums around the US – visualized ‘Tight correlation’ between premium rises and counties deemed most at risk from climate crisis, experts say

“The cost of living in harm’s way has gone up disproportionately,” said @benkeys.bsky.social. “We are seeing the first broad-based direct cost of climate change for homeowners because of these insurance increases.”

We're still in the early days of this crisis.

www.theguardian.com/environment/...

1 year ago 63 27 1 4
1 year ago 0 0 0 0

Real OGs remember the shuttle to zoo back in 2018. I was super sad when they purged that route

1 year ago 0 0 0 0

Writing the first ever letter of recommendation for students and it does feel... I don't know... assuring and relieving? I always felt kinda guilty for troubling my reference considering how busy they are, and now it's my turn. It does feel like a part of my job to help the next generation.

1 year ago 3 0 0 0
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How climate risks are driving up insurance premiums around the US – visualized ‘Tight correlation’ between premium rises and counties deemed most at risk from climate crisis, experts say

Insurance is the canary in the coal mine for the climate crisis. No insurance -> no mortgages -> no housing market.

www.theguardian.com/environment/...

1 year ago 26 18 3 0
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Most fun in the geosciences department is that everyone does all kinds of different research. I study buses and my colleagues study sea cucumbers with little wings

1 year ago 1 0 0 0
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1 year ago 1 0 0 0
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2025 TRB Annual Meeting Reception List

Hi Bluesky TRBers, continuing our annual tradition with the #TRBAM reception spreadsheet for 2025!

As always, please add receptions and share with friends and colleagues.

Looking forward to seeing everyone at the TRB Annual Meeting next month!

docs.google.com/spreadsheets...

1 year ago 21 14 1 5

Writing syllabus for the next year and I can already see my students and I pulling hairs

1 year ago 0 0 0 0

I am hiring a PhD student this year and one candidate with masters degree has more papers and citations than me. Clearly quantity means nothing

1 year ago 1 0 0 0
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Someone clearly submitted a paper and recommended and then impersonated two fictional reviewers. I wonder how they found this lol, maybe reviewer 2 was not harsh enough

1 year ago 0 0 0 0
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1 year ago 0 0 0 0

A new starter pack: go.bsky.app/LaeKYA2 . Let me know who else belongs in the comments.

1 year ago 53 23 23 4
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MOD Easy - Electric Bike with Sidecar Here's the iconic MOD Easy electric bike with sidecar. Featuring a retro frame, built-in battery, and a powerful motor to complete this very stylish ebike.

mod-bikes.com/products/mod...

expensive af but also cool af. Don't know if they sell the sidecar separately

1 year ago 1 0 1 0

Technically I can do everything with python, but I will eventually use Arcpro to visualize the data, which can be super annoying since it’s io is super dysfunctional

1 year ago 0 0 0 0

I had to reject my top candidate because the candidate didn't pass security screening. Just saying - we need international students more than international students need us.

1 year ago 0 0 0 0

If anyone is curious, clearly if you delete fields in a geopackage layer and export it to feature class, the output feature class's fields will be shifted two columns all together because I guess they will regenerate shape_length and shape_area and therefore messed up the whole table

1 year ago 0 0 0 0

Sometimes I feel sorry for my students. These small bugs can really be hurting the whole images of GIS as a domain. And I don't know how many wrong conclusions researchers and planners got by just error 4. The worst type of errors is the errors without error message.

1 year ago 0 0 0 1

ArcGIS bugs I encountered in THIS afternoon:

1. Joining shapefile and csv broken.

2. Export joined shapefile to feature class messed up all attribute table.

3. Cleaned cache and the problems persist. Finally do it in QGIS.

4. Deleting fields and then export feature messed up order of fields

1 year ago 0 0 1 1
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If you also do what I’m doing then you are not part of the problem

1 year ago 0 0 0 0

I never knew you were so versatile! Love to hear the story behind each job

1 year ago 1 0 0 0
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