Jens von Bergmann
@jensvb.bsky.social
đ¤ 9727
đĽ 611
đ 2421
Data, analysis, visualization,
#CensusMapper
, transportation cyclist. đVancouver, BC
Induced demand, but for simple water play features
about 15 hours ago
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Sightline Institute
2 days ago
đ¨ Eye candy alert đ¨ How do we add more homes to our existing leafy, quiet, 50'-wide residential lots?
@lanefab.com
has a gorgeous idea.
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In Pictures: The Possibilities of Vancouverâs New Villages Plan | Sightline Institute
The Four/Five design prioritizes green space, daylight, affordability, and accessibilityâall for greater connection and community.
https://www.sightline.org/2026/07/10/in-pictures-the-possibilities-of-vancouvers-new-villages-plan/
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GRIDS Vancouver
3 days ago
It's funny how Victoria staff are recommending "Transportation Demand Management" plans to encourage non-car options... while also recommending charging THIRTY FIVE THOUSAND DOLLARS to developers who want to build 1 fewer parking spot
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Steam clock, one of the other ones.
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3 days ago
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School of Cities
19 days ago
See our new set of #maps illustrating how many people in each host city can travel to their #soccer stadium by #PublicTransit and within an hour - sortable by stadium, population reached, and percentage of population within a 25 km radius
https://ow.ly/beKJ50ZeZNs
#maps
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canpumf is now on CRAN. StatCan PUMF data is very valuable, but it's ungoverned. The canpumf package resolves the encoding and metadata issues to enable effective and reproducible analysis with StatCan PUMF data. This is a substantial rework of the package, give it a whirl.
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Introducing canpumf â Mountain Doodles
StatCan PUMF data is very valuable, but ungoverned. The canpumf package resolves the encoding and metadata issues to enable effective and reproducible work with StatCan PUMF data.
https://doodles.mountainmath.ca/posts/2026-07-03-canpumf/
9 days ago
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Absolutely loving high-density small-lot development. So many reasons why this makes cities better. Some people dislike the stark contrast in height to neighbouring buildings this produces, I think of it as adding resiliency and adaptability.
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10 days ago
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Fable struggling with the same StatCan shenanigans that have tripped me up in the past. There is a special place in hell for the people who sneak non-breaking white spaces (U+00A0) into data column names and labels.
11 days ago
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jamelle
14 days ago
I think it is cool that a bunch of people are now committed to âJamelle hates black people and loves gentrificationâ because I was trying to have a good faith conversation about how to improve low income black neighborhoods without displacement or gentrification.
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Kris Inwood
16 days ago
The 1901 Canadian census was the first to enumerate earnings for an entire employed population. Shari Eli, Nicholas Li & Janki Shah review the strengths & limits of these newly available data alongside other historical status indicators with particular attention to the social position of farmers.
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Measuring socioeconomic status in historical censuses of Canada
We use the new complete count Canadian Census records spanning from 1871 to 1901 to explore measures of socioeconomic status including income, occupation, and literacy, which scholars commonly use ...
https://doi.org/10.1080/01615440.2025.2556100
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Nathan Lauster
20 days ago
We have way too many of these things menacing our streets, even here in Vancouver. They're not safe. Ban. Tax into oblivion. Up licensing requirements. And open up international trade to welcome safer competition.
www.nytimes.com/interactive/...
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The Deadly Rise of Giant Trucks and S.U.V.s (Gift Article)
The vehicles on American roads have grown larger â and they are killing thousands more pedestrians, a Times investigation found.
https://www.nytimes.com/interactive/2026/06/21/us/trucks-suv-pedestrian-crashes.html?unlocked_article_code=1.sFA.WGJ6.6pzg3WWThkm5&smid=url-share
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Vision Zero Vancouver
22 days ago
Really interesting research, great thread. Consumers don't know how much more dangerous SUVs are to people outside cars; but even when informed, they don't care. It's going to take regulation, not education, to solve this.
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Vincent Arel-Bundock
23 days ago
đ Announcing Calepin đ A new tool to create computational notebooks and static websites, built on Typst. Write code and prose directly in your .typ files, then publish them as documents or as a full website.
vincentarelbundock.github.io/calepin/
1/6 đ§ľ
#Rstats
#Pydata
#Typst
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Nathan Lauster
24 days ago
Congrats to all of the people who have worked so hard to brand Vancouver as "towers full of vacant luxury condominiums" I guess. Anyway, here's the map from 2025's Empty Homes Tax report. Once again, very little empty, with the mansion hoods in the SW leading the pack.
vancouver.ca/files/cov/20...
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GRIDS Vancouver
24 days ago
I wrote a bit about the *huge* amounts of money and time that Unite Here is investing to influence the upcoming Vancouver election:
www.reillywood.com/blog/unite-h...
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A Hotel Union Is Trying to Influence the Vancouver Election
Unite Here Local 40 is a BC hospitality workersâ union: hotels, airports, food service. In 2026 they became one of the most active forces at Vancouver City Hall, and theyâve been pretty explicit that ...
https://www.reillywood.com/blog/unite-here-vancouver/
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I firmly believe that making data more accessible is unconditionally good. But I have to admit that seeing cranks vaguely gesticulating at data products like this as âsupportâ for their crackpot theories gives me pause, and itâs part of the reason I have been lazy in keeping this map up to date.
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24 days ago
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And another international news publication reporting on SenĚåḾw. There are several reasons this project continues to capture international attention. The history of the land, and the stark contrast in land use enabled by the Squamish Nation compared to surrounding Vancouver are probably the top two.
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25 days ago
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A look at gross inter-provincial migration. Which provinces gained or lost population to other provinces? Starting with BC, where more people left to Alberta than came from Alberta in recent quarters, but this was more than made up for by a net inflow from other provinces.
25 days ago
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New quarterly population and migration estimates out today, another quarter of negative net external migration for Canada. (And net population loss, not shown here.) Immigration saw a slight reduction, this is driven by a net outflow of non-permanent residents.
25 days ago
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Did someone say Nanaimo Station?
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27 days ago
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Current status: unittestmaxxing as I work on getting a very valuable but *extremely* messy batch of Canadian data systematically organized so it's easy and efficient to use.
30 days ago
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Good episode focused on transportation impacts of (transit-oriented) density. And more generally talks a lot about how increasing density rarely causes displacement of low-income populations. We looked into this for Canada some years back and found the same.
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30 days ago
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Signs of life, balcony furniture spotted on tower 1 of SenĚåḾw.
about 1 month ago
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May 2026 data is out today, showing a slight rebound in year over year travel of Canadian residents to the US across land borders. Most of the Trump effect is sticking, but there is slight slippage, both for same day and multi-day trips.
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about 1 month ago
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New asking rent data out today, here 2-bedroom rents across several metro areas.
canviz.mountainmath.ca/plot?v=16754...
about 1 month ago
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Give a nerd a chart or a map and they will waste a day. Teach a nerd how to make charts and maps and they will waste the rest of their life.
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about 1 month ago
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Bryn Davidson - Lanefab
about 1 month ago
Passenger plane, designed by North American city planners and city councils. (Also, economy seats pay an extra surcharge and take 4x as long to book)
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Shane Phillips
about 1 month ago
Who lives in new housing? I built this dashboard showing the share of people who moved in the past year who came from another metro, >100 miles away, etc. The main takeaway: People moving longer distances aren't attracted by new housing. Read more here:
domainexpansion.substack.com/p/the-call-i...
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The Call Is Coming From Inside the House [Migration Dashboard Tool]
Using Census data, I built a dashboard that shows where people come from when they move into newly-built housing. It's mostly local. New housing doesn't attract rich people to your city.
https://domainexpansion.substack.com/p/the-call-is-coming-from-inside-the
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âVox pivoted its message away from immigrants taking jobs and toward immigrants taking homes. Its leaders began blaming the countryâs housing crisis on foreignersâ â Thatâs how Housing Nationalism operates, as a platform to activate reactionary nationalism as
@lausterna.bsky.social
and I explained.
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about 1 month ago
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Also a good reminder that Empty Homes Tax data offers a useful view into unadorned inventory. (As does the Speculation and Vacancy Tax data, but the 2025 municipal breakdown is not out yet.)
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about 1 month ago
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Denis Agar (he/him)
about 1 month ago
âThe lesson for me is that scarcity is the ultimate gift to the far right,â Galindo said. âWhen there isnât enough housing or public transit or health-care services for everyone, itâs so much easier to point a finger at immigrants than to address the actual causes of that shortage.â
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The Spanish Exception
The countryâs leaders avoided a populist backlash by engineering an economic boom. Now the boom is creating problems of its own.
https://www.theatlantic.com/ideas/2026/06/spain-economy-immigration-backlash/687371/?utm_campaign=work-in-progress&utm_content=20260601&utm_source=newsletter&utm_medium=email&lctg=6050ed37f98ec7553cd22402&utm_term=Work%20in%20Progress
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TongFen v0.3.7 is now on CRAN. TongFen solves the problem of making data across different but congruent geographies comparable. Prime examples are fine geography census data from different years, or polling districts across election cycles. Thanks to
@dshkol.bsky.social
for performance improvements.
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Make Data Based on Different Geographies Comparable
Several functions to allow comparisons of data across different geographies, in particular for Canadian census data from different censuses.
https://mountainmath.github.io/tongfen/
about 1 month ago
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Grow Together Edmonton
about 1 month ago
Across the world in Edmonton, we have our own townhouse story that's just getting started.
jacobdawang.com/blog/2026/q1...
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Brendan Dawe
about 1 month ago
Another good one from the 1957 Atlas of Canada - Vancouver land use and urban growth 1956
commons.wikimedia.org/wiki/File:At...
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Adam Mongrain
about 1 month ago
Think about people when you talk about housing or you will one day push your neighbour into the sea to lower home prices.
medium.com/@AdamMongrai...
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Pushing your neighbours into the sea will lower home prices
Pushing your neighbours into the sea will lower home prices. If you do this at a systemic, systematic or industrial scale, it will lowerâŚ
https://medium.com/@AdamMongrain/pushing-your-neighbours-into-the-sea-will-lower-home-prices-6a25de3c18ef
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Your regular reminder that this is not an argument about housing, itâs an argument about exclusion. Allowing multiplexes expands housing choice, it allows more sizes. But it reduces exclusion, and this is arguing that CoV hoods should be able to set higher levels of exclusion than multiplex.
about 1 month ago
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Nathan Lauster
about 1 month ago
Good round-up on "how to leverage upzonings to generate substantial new housing supply." But I'd add: 4âThe details matter Which is a point made in the write-up, but worth emphasizing, and also allows me to link to our study of the same title.
www.sciencedirect.com/science/arti...
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Details on how moving chains interact with bedrooms will depend on housing stock and household composition. Here is the Metro Vancouver breakdown, lots of opportunity for households in 3+ bedrooms to split up or downsize into 1 or 2 bedroom homes.
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about 2 months ago
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Now itâs the yellow-ish dogwoodâs turn. Vancouver spring never disappoints.
mountainmath.ca/vantrees
about 2 months ago
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One of the news things the updated CensusMapper gained is bivariate maps. Here is an example looking at studio and 1 bedroom homes vs 1-person households. This mostly falls along the diagonal, but it also allows to explore areas where there are more of one vs the other.
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Bedrooms vs households | CensusMapper
This map shows the distribution of the share of 0 and 1 bedroom dwellings vs the share of one-person households. 0 bedroom (studio) homes are generally considered to be adequate for 1-person househo...
https://censusmapper.ca/maps/5425
about 2 months ago
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Nathan Lauster
about 2 months ago
The inevitable consequence of cities setting aside so much room for vehicles and so little room for housing is once again in the news I see. (gift link)
www.nytimes.com/2026/05/24/u...
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In Homeless Crisis, California âIs Waging a War on R.V.sâ
https://www.nytimes.com/2026/05/24/us/california-homeless-cars-rvs.html?unlocked_article_code=1.lFA.Cq8F.R5biOQqWbhUj&smid=url-share
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Be Giant
about 2 months ago
Even amid Vancouverâs soaring condominiums and natural surroundings, SenĚåḾw is a showstopper. But one of its most radical technological innovations is almost entirely buried underground.
@novakovicto.bsky.social
on the energy revolution shaping its development:
www.begiant.ca/stories/idea...
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How Vancouverâs SenĚåḾw will heat 6,000 homes with sewage
The scale and ingenuity of this Vancouver project is the next step in an energy revolution shaping development across Canada
https://www.begiant.ca/stories/ideas/sewage-heat-recovery-senakw-blatchford-canada
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Saloni
about 2 months ago
Here are some of my favourite Lexis plots. 1.
link.springer.com/article/10.1...
2.
ourworldindata.org/causes-of-de...
3.
www.demographic-research.org/volumes/vol3...
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Joe Fish
about 2 months ago
it's actually worse than that; i don't think the authors actually wrote their own article
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This is great. We need more human story explanations like this. Just pointing at data and research fails to reach a lot of people.
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about 2 months ago
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Loving seeing the treemap in action. I also keep checking random trees that I notice. (Itâs probably time to remove the extra spring flower highlights/filter.)
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about 2 months ago
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William Azaroff (he/him)
about 2 months ago
I am proud to accept the endorsement of the Vancouver and District Labour Council. Every single Vancouverite deserves an affordable home, strong public services, a good job, and a living wage. Weâll return respect for workers to City Hall when we retake the Mayorâs Office on October 17
#vanpoli
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Timmy was a performance artist who orchestrated the degenerative dance of influencers, charlatans, conspiracy theorists and clickbait media to drag all onlookers down with him.
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Timmy the Whale Got Stranded Off the German Coast. Then Things Got Weird.
https://www.nytimes.com/2026/05/20/world/europe/timmy-whale-dead-denmark-rescue.html?smid=nytcore-ios-share
about 2 months ago
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An older but still relevant CensusMapper map is net migration by age group. This shows the generational pulse of cities, where kids kids who are born in central areas move outward. And then stream back to the centre around age 20, leaving again in their 30s.
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Net Migration by Age Groups | CensusMapper
This map shows the net migration of the population by 5 year age groups and is inspired by [Nathanael Lauster digging into Vancouver's net migration patterns](https://homefreesociology.wordpress.com/2...
https://censusmapper.ca/maps/731?z=10.49&lat=43.6652&lng=-79.3728
about 2 months ago
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