@mbonsma@mastodon.social
@mbonsma@mastodon.social avatar

mbonsma

@mbonsma@mastodon.social

Data Sciences Institute postdoc (bikes + data), biophysics PhD, Bike Ottawa board member, mom. I post about bikes and safe streets, local politics, and sometimes science. She/her.

#DataScience #BikeTooter #OttBike #BikeTO #ActiveTravel #Transportation #UrbanPlanning #CargoBike #eBike #biking #maps #science #Python #cats #fedi22

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rzaichkowski, to random
@rzaichkowski@mas.to avatar

On Thursday, April 25, Thomas Van Laake hosted a cycling research meetup at U of T along with Sarah Giacomantonio, Alec Khacatryan & @mbonsma. An overview of their presentations can now be found on my blog. http://www.twowheeledpolitics.ca/2024/05/april-25-cycling-research-meetup.html

grivettcarnac, to Ottawa
@grivettcarnac@mstdn.social avatar

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    dx, to random
    @dx@social.ridetrans.it avatar

    Our ideal car would be not needing a car, but 2nd best would be a not too big EV with AWD and a barely functional 3rd row of seats. Tesla Y actually ticks those boxes, but I’m not sure I could bring myself to own a Tesla. Also I don’t have $45000 lying around anyway, so it’s moot.

    dx,
    @dx@social.ridetrans.it avatar

    “We can’t afford another $3000 ebike, and besides where would we put it?” I say, while our neighbours have parked a $100k sprinter camper van next to their 2023 F-150 right on the public road.

    alexkgellis, to random

    Looking for research showing clear connection between installation of bike lanes and improved pedestrian safety. @bikepedantic @DrTCombs @BarbChamberlain @mbonsma Anything at your fingertips?

    geekingirl, to random
    @geekingirl@mastodon.social avatar

    Friendly tax reminder:

    Whatever you pay for tax filing software, they’re probably gonna use that money to lobby so that the government doesn’t adopt automatic tax filing.

    So even if you really like their software, paying them helps keep us in this archaic, inequitable state.

    I decline to pay and cite their anti-auto-filing lobby as my reason.

    c_9, to random

    Oh so thaaaaaat’s why they were so worried about the budget, they need to cover all the speeding tickets!

    RT @maleve: Toronto police officers land 1K speeding tickets in 2-year period: FOI | CTV News https://toronto.ctvnews.ca/toronto-s-fine-est-over-1k-automated-speeding-tickets-issued-to-police-vehicles-in-2-year-period-1.6775042

    https://zeroes.ca/@maleve/111961441610242379

    haraldkliems, to madisonwi
    @haraldkliems@fosstodon.org avatar

    New on the blog: Comparing Metro and Eco Counter loop detector bike counts at two locations in . https://haraldkliems.netlify.app/posts/2024-01-19-strava-vs-eco-counter/

    tl;dr: They are very highly correlated -- more so than in many other locations.

    Shout-out to @mbonsma for encouraging me to actually go through the Strava Metrp approvals process, which was smooth and fast.

    johncarlosbaez, (edited ) to random
    @johncarlosbaez@mathstodon.xyz avatar

    Big news in bug math. This is the first year since 1803 when both 13-year cicadas and 17-year cicadas will emerge from the ground simultaneously in the US!

    13 and 17 are both prime. It's believed cicadas evolved to have prime-number life cycles, thus avoiding predators that emerge more frequently, like once every 4 years or 5 years or... whatever. By showing up infrequently, with a prime number life cycle, cicadas can starve out those predators.

    And since 13 and 17 are both prime and 13 × 17 = 221, both kinds of cicadas emerge simultaneously only once every 221 years. And

    1803 + 221 = 2024

    so now they'll both emerge simultaneously and we'll have 𝑙𝑜𝑡𝑠 of cicadas!

    Also, this year the two kinds can interbreed! Maybe they're be fruitful and multiply... and we'll get 221-year cicadas. 😆

    The last time the Northern Illinois Brood’s 17-year cycle aligned with the Great Southern Brood’s 13-year cycle, Thomas Jefferson was president.

    https://www.nytimes.com/2024/01/19/science/cicadas-emergence-broods.html

    scooooooott, to random
    @scooooooott@urbanists.social avatar

    I'm working on making Level of Traffic Stress maps for Boston, but would love for them to be interactive, so you can see why each street is rated as it is. Any suggestions on how to do that?

    I was able to make this map using @mbonsma code.

    I've tried to make an interactive plot with Plotly, but it is too slow with so many lines.

    shaknais, to random
    @shaknais@mastodon.social avatar

    Zoom zoom.

    Source: https://old.reddit.com/r/Eyebleach/comments/18ovqjy/loony_tunes_physics_deployed/

    Cat that has goalie slider abilities.

    mbonsma, to random
    @mbonsma@mastodon.social avatar

    This morning a woman walked out onto the street in front of me without looking and I just went around her and everyone went on with their day, because I was going 15 km/h on a bike and not driving a 1500 kg tank through a city at 50 km/h

    LiamEgan, (edited )

    @mbonsma There is a pecking order where you take care of the ‘slower’ traffic, until you get to the car and then the principle is abandoned.

    Fast walkers look out for slow walkers
    Runners look out for all walkers (and slower runners)
    Cyclists look out for all runners and walkers
    That is how you care for others.

    Cars and Trucks only look out for themselves and break the chain of caring.

    Edit: I blocked someone because they claimed this was disinformation and wanted 'proof'.

    mbonsma, to random
    @mbonsma@mastodon.social avatar

    Pedestrians, it should be our right to be distracted. It should be our right to walk and listen to music / look at the sky / cute dogs / snowflakes and not worry about getting killed. Nothing about that is dangerous except for CARS. Don't let them make you believe you are the problem.

    mariellequinton,
    @mariellequinton@ottawa.place avatar

    @twobiscuits @mbonsma Somehow no one ever suggests drivers should open their windows, turn off their stereos, slow down, and look around. Modern cars are so soundproof many drivers can't hear sirens from emergency vehicles. But it's pedestrians that aren't paying enough attention? It's drivers not paying attention and going too fast.

    BOhUiginn,

    @marchuff @mbonsma

    No one’s arguing that pedestrians don’t always lose. In fact, that’s precisely the point. They ALWAYS LOSE.

    So, let’s do something about the actual problem. It’s not distracted pedestrians. It’s oversized, unnecessary vehicles that more & more kill pedestrians in ways that don’t have to happen in the first place. The responsibility of driving a vehicle and the possibilities behind that are the drivers’, they chose to drive that vehicle. Pedestrians are just trying to exist.

    rzaichkowski, to cycling
    @rzaichkowski@mas.to avatar

    Last Wednesday, I had a chance to speak with @mbonsma about her passion for data, advocacy with @bikeottawa, and her current postdoctoral research on cycling stress levels in Toronto. The interview is now up on my blog. http://www.twowheeledpolitics.ca/2023/10/data-science-with-madeleine-bonsma.html

    grivettcarnac, to Ottawa
    @grivettcarnac@mstdn.social avatar

    Well I doubt Garner is interested in the broad solutions that would reduce the need for car ownership but at least she’s talking about.

    How do you marry cultural populism around personal vehicles and affordability?

    If the city of could get 20,000 families to get rid of one car… for folks with multiple vehicles and how many others to get rid of cars altogether? Fund transit. Freeze new road construction. Fund transit

    https://apple.news/AiYDWcmpuQVCginiCr_i_dw

    Auxonic,
    @Auxonic@mastodon.social avatar

    @grivettcarnac reducing Ottawa’s owned cars by 20k would mean something like $200M in spending power freed up not to mention reduced costs to the city… and yet any serious plan to make driving even slightly uncomfortable is dismissed as absurd

    grivettcarnac, to ontario
    @grivettcarnac@mstdn.social avatar

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    TheDonsieLass, (edited ) to cycling
    @TheDonsieLass@mas.to avatar

    Anyone got a recommendation for a UK-available cycling trailer for carrying cats and dogs (one at a time, not a ménagerie all at once)? Or, have you maybe gone for a cargo trike or something else instead?

    P.S. I don't know what size of dog yet. This is part of scoping out whether I can still avoid buying a car while getting pets!




    bikeottawa, to Ottawa French
    @bikeottawa@mastodon.social avatar

    Residents: “Can we have ?”

    @Ottawacity: “How about some reflective armbands?”

    The City’s campaign continues this week with an event at City Hall (Sept 21, 3-5pm) that includes handing out armbands.

    Follow along. 🧵 1/7

    Screenshot of event at Ottawa City Hall where they want to show people walking or biking where blind spots are from a truck driver’s perspective. Also announcing distribution of reflective armbands. Onus being solely put on people outside of truck.

    bikeottawa,
    @bikeottawa@mastodon.social avatar
    1. Shift any messaging instead to a “Hierarchy of Road Users” where those who can do the most harm, carry the greatest responsibility. 4/7

    Graphic showing hierarchy of road users, with drivers bearing the greatest responsibility and people walking, biking or rolling being the most at risk

    bikeottawa,
    @bikeottawa@mastodon.social avatar

    We are calling on City staff to:

    1. Retire the “Shared Responsibility” education campaign now.

    These road safety campaigns demonstrate little to no measurable impact. 3/7

    https://www.publichealthontario.ca/-/media/Documents/E/2021/evidence-brief-road-safety-education-no-field-codes.pdf?rev=f8564314e782441288c8cd7bb28663a3&la=fr

    bikeottawa,
    @bikeottawa@mastodon.social avatar
    1. Shift funding from education-focused activities to budgeting (this fall) for concrete measures to achieve real goals:

    👉Fix our 29 most dangerous intersections now

    👉“Quick-build” fund towards a safe active transportation system FAST 5/7

    https://ottawacitizen.com/news/local-news/making-29-intersections-safer-for-ottawa-cyclists-would-cost-32-million-report-says

    kim_harding, to random
    @kim_harding@mastodon.scot avatar

    Distracted by “distracted pedestrians”?
    https://www.sciencedirect.com/science/article/pii/S2590198220300294
    •A third of transportation practitioners say distracted walking is a big problem
    • Half say it is a small problem and 17% say it is not a problem
    • Concern is highest among drivers and those who spend little time in pedestrian areas
    • Concern is higher among engineers and public health practitioners than planners
    • Concern affects policy solutions, raising support for education over speed reduction

    dx, to random
    @dx@social.ridetrans.it avatar

    Is there any good retrospective of the urbanism and bike crazes of the 1970s, what could have been, what ultimately killed them off, and what lessons we can learn? I keep coming across stuff from that period and it's like, we had ALL THE ANSWERS 50 years ago, and social momentum behind them, and then the 80s happened and we forgot about it all.

    susankayequinn, to climate
    @susankayequinn@wandering.shop avatar

    Whatever it takes to get people to understand.

    davidzipper, to random
    @davidzipper@mastodon.social avatar

    "We need a weight tax on vehicles, including one on electric vehicles, to encourage cars of all types to become lighter and less damaging to the environment, roads and pedestrians."

    Agreed!

    https://www.theglobeandmail.com/business/commentary/article-rolling-suv-fatsos-including-their-plumper-electric-versions-need-to/

    grivettcarnac, to Ottawa
    @grivettcarnac@mstdn.social avatar

    deleted_by_author

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