Madeleine Bonsma-Fisher, PhD's Avatar

Madeleine Bonsma-Fisher, PhD

@mbonsma.bsky.social

Bikes + data, UofT biophys PhD, mom. I post about bikes and safe streets, local politics, and sometimes science. She/her.

12,424 Followers  |  1,624 Following  |  1,776 Posts  |  Joined: 24.07.2023  |  2.3456

Latest posts by mbonsma.bsky.social on Bluesky

If only it weren't illegal to send people a ticket when they go too fast

25.11.2025 14:22 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Wow!

24.11.2025 23:31 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Which tells you how much we've spent... that includes maintenance, insurance, and all accessories.

24.11.2025 23:18 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

7200! Four years with this bike.

24.11.2025 23:16 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Activate climate’s β€˜silent majority’ to supercharge action, experts say Making concerned people aware their views are far from alone could unlock the change so urgently needed

A huge 89% majority of global people [56% even in the United States] want stronger action to fight the #ClimateCrisis, but mistakenly believe they’re in a minority.

People want action. Smart cities are taking action. Nations should support city action.

#ActionStartsHere @mayors4climate.bsky.social

24.11.2025 22:18 β€” πŸ‘ 599    πŸ” 243    πŸ’¬ 9    πŸ“Œ 25

The suspension in modern cars is too good. At the speeds people are driving down my street, I want those speed bumps to HURT

24.11.2025 22:31 β€” πŸ‘ 41    πŸ” 0    πŸ’¬ 5    πŸ“Œ 0
Me riding our Tern GSD e-cargo bike with our toddler in the back

Me riding our Tern GSD e-cargo bike with our toddler in the back

A fun milestone: the per-km cost of our cargo bike has dropped below the CRA reimbursement rate for driving in Ontario ($0.60/km)!

24.11.2025 21:56 β€” πŸ‘ 59    πŸ” 5    πŸ’¬ 3    πŸ“Œ 0

I picked up our cargo bike after the winter tire swap today and was talking to my mechanic about the Rad situation. He said he's had to turn away lots of people because Rad bikes don't have component support - they may look like Shimano or Bosch parts, but they aren't, and you get what you pay for.

24.11.2025 21:31 β€” πŸ‘ 18    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

A bad day for Canada, and therefore the world.

Ontario (population 16 million, 40% of the country) has passed new legislation prohibiting bike lanes that take a lane from cars.

An escalation from Bill 212, which required municipalities to get approval.

24.11.2025 19:50 β€” πŸ‘ 277    πŸ” 84    πŸ’¬ 30    πŸ“Œ 14

2/3 of my friend's kid's kindergarten class is currently out with Influenza A. Time to get those flu and COVID vaccines, folks!

24.11.2025 20:16 β€” πŸ‘ 11    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

I know a lot of people for whom Rad was their gateway into the magic of bike life. This is sad for them and for the company, who are already in a bad financial situation. I am personally not regretting spending more on quality e-bikes with certified components.

24.11.2025 19:50 β€” πŸ‘ 47    πŸ” 8    πŸ’¬ 7    πŸ“Œ 1

My friends, please buy a UL certified #ebike #bikedc

24.11.2025 19:10 β€” πŸ‘ 17    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

I walked along a few kms of College St this morning before 9am. Day care drop then carried on. Watched the people push and cycle their kids around, some dad on a cargo bike waved & said hi to some tweens walking in front of me. All very Sesame Street.

And this gov't has contempt for it all.

24.11.2025 18:04 β€” πŸ‘ 93    πŸ” 24    πŸ’¬ 3    πŸ“Œ 1

Ooooh yummy!

24.11.2025 18:24 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Yes exactly!

24.11.2025 16:08 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

There are so many superfluous pancake and waffle recipes out there. Basic recipe is 1 cup wet, 1 cup dry, and 1 egg and/or 1 tsp baking powder. The rest is chef's choice!

24.11.2025 15:57 β€” πŸ‘ 11    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

My life hack tip is that you can put anything in pancakes as long as the batter gets the right goopiness. If you want them fluffy, ~1 tsp baking powder to every ~1 cup dry.
Fridge cleaner pancakes can include:
- any flour-type substance
- eggs
- yogurt
- flax
- apple sauce
- the list goes on!

24.11.2025 15:55 β€” πŸ‘ 36    πŸ” 1    πŸ’¬ 7    πŸ“Œ 0

Just ONE DAY left to submit a comment on Bill 60, which will block not only ALL new bike lanes in Ontario that take away car lanes, but also puts bus lanes, patios, and pedestrian streets at risk too. Submit your comment here before the end of November 22: ero.ontario.ca/notice/025-1...

21.11.2025 19:08 β€” πŸ‘ 19    πŸ” 17    πŸ’¬ 0    πŸ“Œ 0

Canadian and US suburbs are pretty different!

bsky.app/profile/relu...

19.11.2025 13:47 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Mapping Population Density Across the Globe Explore the detailed geography of population across the globe with interactive mapping and statistics. Identify global megacity regions and the growth and diversity of urban forms. Data is from the Gl...

Fun fact: despite the enormous land mass, the population-weighted density of Canada β€” basically the density experienced by the average person β€” is the same as Denmark and close to the Netherlands.

Canada and Denmark are 3,000 people per kmΒ², while the Netherlands is 3,400/kmΒ².

11.10.2025 20:34 β€” πŸ‘ 344    πŸ” 63    πŸ’¬ 8    πŸ“Œ 8

I don't think it's the same though! Wish I could find it back but there were some great maps on here comparing density between Canadian and American cities.

19.11.2025 01:56 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Even Canadian suburbs are much more dense than American. I don't own a car and live in a walkable and very dense neighbourhood, but it's a streetcar suburb of Toronto and not actually walking distance to downtown.

19.11.2025 01:21 β€” πŸ‘ 27    πŸ” 4    πŸ’¬ 5    πŸ“Œ 0

This is Canadian data but transit accessibility has more impact on housing prices than car accessibility. The people want to live close to stuff and close to transit! bsky.app/profile/mbon...

19.11.2025 01:09 β€” πŸ‘ 11    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
A freshly baked sourdough loaf with sesame seeds on the crust

A freshly baked sourdough loaf with sesame seeds on the crust

Heck yes

18.11.2025 19:54 β€” πŸ‘ 48    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

Anne Hidalgo is one of the most courageous mayors in history. They sued her. Said she was attacking Parisian heritage. Said she would make traffic worse.

And yet she persisted. She seized an opportunity and delivered.

18.11.2025 15:08 β€” πŸ‘ 158    πŸ” 46    πŸ’¬ 1    πŸ“Œ 3

It's not efficient traffic flow if it's illegal and dangerous!

17.11.2025 15:06 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Mr. Ric Bresee: One of the things we’re talking about here today is safety, how people move around the entire province, and it brings me back to a conversation I hadβ€”I mentioned earlier that I was in municipal government for a long time. There was a council debate about a particular safety issue, and the engineer brought forward an idea at the time, and that was, if we could pass something that would guarantee that there would be no deaths on our streets, would we do it? Of course, everyone saidβ€”and I know this is going to sound like I’m being flippant, and I’m not; I just wanted to enter this into the conversationβ€”and he said we could guarantee it if we limited all vehicles to a speed of no more than five kilometres per hour, then there would be no fatalities. And he’s not wrong.

The idea is, unfortunately, while we strive to achieve Vision Zero, while we strive to achieve safety in as many cases as possible, there is a human element. There is a random element. As long as we’re wanting the efficiency of the vehicles that we’re using, whether they be bicycles, whether they be cars or transports or transit systems or planes, as long as we’re going over five kilometres an hour, there unfortunately will occasionally be injuries; there will occasionally be accidents. We can minimize those to the best of our ability, but we’re never going to eliminate them. It’s just not a reality statement.

So what we are actually talking about is finding the best way, finding the best path to safety, recognizing that we still use all of these means of transportation, all of the types of vehicles that I just mentioned, including walking and pedalling and all of it, and finding the best way to go about doing that.

Mr. Ric Bresee: One of the things we’re talking about here today is safety, how people move around the entire province, and it brings me back to a conversation I hadβ€”I mentioned earlier that I was in municipal government for a long time. There was a council debate about a particular safety issue, and the engineer brought forward an idea at the time, and that was, if we could pass something that would guarantee that there would be no deaths on our streets, would we do it? Of course, everyone saidβ€”and I know this is going to sound like I’m being flippant, and I’m not; I just wanted to enter this into the conversationβ€”and he said we could guarantee it if we limited all vehicles to a speed of no more than five kilometres per hour, then there would be no fatalities. And he’s not wrong. The idea is, unfortunately, while we strive to achieve Vision Zero, while we strive to achieve safety in as many cases as possible, there is a human element. There is a random element. As long as we’re wanting the efficiency of the vehicles that we’re using, whether they be bicycles, whether they be cars or transports or transit systems or planes, as long as we’re going over five kilometres an hour, there unfortunately will occasionally be injuries; there will occasionally be accidents. We can minimize those to the best of our ability, but we’re never going to eliminate them. It’s just not a reality statement. So what we are actually talking about is finding the best way, finding the best path to safety, recognizing that we still use all of these means of transportation, all of the types of vehicles that I just mentioned, including walking and pedalling and all of it, and finding the best way to go about doing that.

Lowering speeds would save lives, but of course we can't do that, so a few deaths here and there is just the cost of doing business. (5 km/h isn't necessary, by the way, 30 km/h is all it takes to achieve this)

17.11.2025 14:38 β€” πŸ‘ 8    πŸ” 4    πŸ’¬ 2    πŸ“Œ 0

"As long as we’re wanting the efficiency of the vehicles that we’re using... as long as we’re going over 5 km/h, there unfortunately will occasionally be injuries; there will occasionally be accidents." -Ontario politician Ric Bresee on his government removing bike lanes

17.11.2025 14:35 β€” πŸ‘ 15    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

My good friend Jess reading out names of innocent ppl who have a lost their lives to road violence.

Candles represent lives lost.

It’s so wrong when our elected reps place the convenience of drivers over prioritizing the safety of vulnerable road users.

via @ffsafestreets.bsky.social #WDoR2025

16.11.2025 23:50 β€” πŸ‘ 74    πŸ” 19    πŸ’¬ 0    πŸ“Œ 1

Dave Meslin's book radicalized me against public advertising in general (abolish billboard and transit vehicle wraps) but this is particularly egregious

16.11.2025 18:54 β€” πŸ‘ 12    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

@mbonsma is following 20 prominent accounts