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Posts by Pete Casellini

I saw Andrew WK give a talk at CMJ in 2009 where he destroyed a folding chair. It was awesome.

1 week ago 3 1 0 0

Artemis II splashing down exactly when predicted, to the minute, after traveling like 700,000 miles is why we need dedicated bus lanes tbqh.

1 week ago 352 65 8 1
Figure 1. Bicycle share of trips in New York City, London, Paris, and Berlin, 1990–2023. Note: the actual years vary slightly by city, as follows: New York: 1990,2000, 2010, 2019, 2022; London: 1993, 2000, 2010, 2019, 2022; Paris: 1990, 2000, 2010, 2017, 2023; Berlin: 1992, 1998, 2010, 2018, 2023. The percentages shown in thegraphic refer to the bicycle share of all trips, all trip purposes, based on travel surveys for each city. Sources: City of Paris, 2000–2023; City of Berlin, 2003–2025;Kalender,2012; NYCDOT, 2018–2023; Pucher, Parkin, et al.,2021; TfL, 2000–2023.

Figure 1. Bicycle share of trips in New York City, London, Paris, and Berlin, 1990–2023. Note: the actual years vary slightly by city, as follows: New York: 1990,2000, 2010, 2019, 2022; London: 1993, 2000, 2010, 2019, 2022; Paris: 1990, 2000, 2010, 2017, 2023; Berlin: 1992, 1998, 2010, 2018, 2023. The percentages shown in thegraphic refer to the bicycle share of all trips, all trip purposes, based on travel surveys for each city. Sources: City of Paris, 2000–2023; City of Berlin, 2003–2025;Kalender,2012; NYCDOT, 2018–2023; Pucher, Parkin, et al.,2021; TfL, 2000–2023.

This paper compares trends in cycling levels, cyclist demographics and cycling injury risk in NewYork, London, Paris and Berlin, before and after the COVID pandemic. We explore these trends inthe context of changes to policy and infrastructure before, during, and after COVID. We based ouranalysis on data from published reports, open-data portals, government websites, travel surveys,and information provided by transport planners in each city. Cycling levels in NYC, London, Paris,and Berlin increased over the three decades prior to COVID (1990–2019). As a percentage of dailytrips, bike mode share rose from 0.6% to 2.2% in New York, from 1.2% to 3.7% in London, from0.4% to 5% in Paris, and from 7% to 18% in Berlin. Cycling rates have continued to increase sinceCOVID. By 2023, bike mode shares had risen further to 3% in NYC, 4.5% in London, 11% in Paris,and 19% in Berlin. Cycling became safer in all four cities over the period 2005 to 2023, withdeclining per-trip fatality and injury rates. More and better cycling infrastructure has been acornerstone of pro-cycling efforts, especially cycleways separated from motor vehicle traffic (pro-tected bike lanes). Bike parking and bikesharing systems have expanded and improved. Car restric-tions and traffic calming have complemented pro-bike measures, for example, using infrastructureand enforcement to reduce traffic volumes and speeds in residential neighborhoods. Long-termpolitical support as well as cycling advocacy organizations have been critical to the introductionand continuation of pro-bike policies and the necessary financial investments.

This paper compares trends in cycling levels, cyclist demographics and cycling injury risk in NewYork, London, Paris and Berlin, before and after the COVID pandemic. We explore these trends inthe context of changes to policy and infrastructure before, during, and after COVID. We based ouranalysis on data from published reports, open-data portals, government websites, travel surveys,and information provided by transport planners in each city. Cycling levels in NYC, London, Paris,and Berlin increased over the three decades prior to COVID (1990–2019). As a percentage of dailytrips, bike mode share rose from 0.6% to 2.2% in New York, from 1.2% to 3.7% in London, from0.4% to 5% in Paris, and from 7% to 18% in Berlin. Cycling rates have continued to increase sinceCOVID. By 2023, bike mode shares had risen further to 3% in NYC, 4.5% in London, 11% in Paris,and 19% in Berlin. Cycling became safer in all four cities over the period 2005 to 2023, withdeclining per-trip fatality and injury rates. More and better cycling infrastructure has been acornerstone of pro-cycling efforts, especially cycleways separated from motor vehicle traffic (pro-tected bike lanes). Bike parking and bikesharing systems have expanded and improved. Car restric-tions and traffic calming have complemented pro-bike measures, for example, using infrastructureand enforcement to reduce traffic volumes and speeds in residential neighborhoods. Long-termpolitical support as well as cycling advocacy organizations have been critical to the introductionand continuation of pro-bike policies and the necessary financial investments.

Truly wild research on the change in bike mode share in NYC, London, Paris and Berlin.

Between 2000 and 2023, Paris went from 1 out of every 100 trips being on a bike to *one out of 9!*

Many people, including credible researchers, would have told you that that *could not* happen.

1 week ago 393 132 8 23

Sorry the EU didn’t come up with their own absurd emissions exemption carveout and spend years creating market demand for high-margin gas guzzling vice signalers.

Live by the rules of Calvinball, die by the rules of Calvinball.

1 week ago 7 1 0 0

🫡

2 weeks ago 1 0 0 0

There are now 10 toilets in Space

International Space Station: 4
Crew Dragon Docked at ISS: 1
Soyuz Docked at ISS: 1
Tiangong Space Station: 2
Shenzhou Docked at TSS: 1
Artemis II on way around Moon: 1

This will be the first time a toilet has left low earth orbit!

2 weeks ago 5700 1610 154 455

Currently on France TV, the new mayor of Paris Grégoire celebrating his victory by biking around on a bike share. He’s now taking an interview while riding.

4 weeks ago 2081 502 13 70

Well that’s the good news: “vampire drain” is more or less solved apart from the earliest air-cooled Leafs and Teslas, you might lose a couple percent over a week with an EV.

4 weeks ago 2 0 0 0
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tbh if home charging isn’t an option PHEVs aren’t great unless you can consistently charge at work instead, they really function best with consistent home charging every night for shorter trips to make up for the battery weight difference over a standard hybrid

4 weeks ago 3 0 2 0
A table showing requirements to use speed limits higher than 30 km/h in built up areas in Norway.

A table showing requirements to use speed limits higher than 30 km/h in built up areas in Norway.

The change is meant to make streets safer for pedestrians and cyclists.

Here's the full list of requirements (translated) that have to be met to post a higher speed limit than 30 km/h. To use 40 or 50 km/h, all requirements for pedestrian and cycling infrastructure have to be met.

1 month ago 65 15 2 1
A picture of a major street in Norway with a 30 km/h sign, a snow covered bike lane and traffic at sunset.

A picture of a major street in Norway with a 30 km/h sign, a snow covered bike lane and traffic at sunset.

Significant road safety win in Norway! 30 km/h is now the default for built up areas 🚴‍♂️🚶‍♂️

Norway's public roads administration have just turned the way speed limits are set in built up areas on it's head. From now on, traffic engineers now have to meet clear criteria to use any higher speed limit.

1 month ago 371 113 5 20
1 month ago 3 0 0 0

Everyone who answers “too low” is on this app.

1 month ago 177 16 9 1
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Please enjoy the view from this Amtrak Pacific Surfliner train

1 month ago 470 47 25 4

Goodbye to Tacomas on the beach, hello to the soon-to-be-discontinued Santa Cruz sandiego.hylandcloud.com/211agendaonl...

1 month ago 2 1 0 0
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1 month ago 331 51 13 19

Congrats! Three months in tomorrow and based off my sample size of one: nothing at all is normal for at least two to four weeks, nobody’s sleeping, every semblance of a social routine temporarily disappears, but the kid is cool and it’s worth it and things come back and you get used to not sleeping

1 month ago 3 0 0 0
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I guess if you're CBP you can just circle restricted Disneyland airspace anytime you want www.flightaware.com/live/flight/...

1 month ago 3 0 0 0

Glad we've decided we don't need double yellow lines to separate opposing directions of traffic anymore, we can accomplish that with vibes

1 month ago 3 0 0 0

Is this like one of those reserved British ceremonial titles somebody gets appointed to so they can legally leave Parliament

1 month ago 3 0 0 0

New #shoupista UCLA report on parking construction costs. Did you know:
👉 avg cost to build underground parking = $73,000 per space ( excluding land cost)
👉 avg cost to build aboveground parking = $52,000 per space
👉 For apartments, required parking adds roughly $50,000-$100,000 per unit

1 month ago 26 14 2 1

I take back every bad thing I said about Metro switching from colors to letters.

1 month ago 39 10 0 0

Metro D Line subway extension to Beverly Hills will open on Friday May 8 2026. Four new miles of heavy rail subway. Three new stations on Wilshire: La Brea, Fairfax, La Cienega. Ride from Beverly Hills to DTLA in 20 minutes!

1 month ago 142 37 4 21
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El Monte Busway - Wikipedia

The El Monte Busway in greater LA began service in 1973 but only made it until 1976 as an exclusive facility before allowing carpools: en.wikipedia.org/wiki/El_Mont...

2 months ago 11 0 3 0

Urge the San Diego County District Attorney @summerstephan.bsky.social: We Need Justice for Hudson! 🚲

@bikesd.bsky.social

actionnetwork.org/letters/urge...

2 months ago 13 6 1 0

Yeah :( They sell blackout emblem kits that are often an unwanted dealer bundle add-on, and they used to do the blue on every hybrid. Combine the two and you get this.

2 months ago 1 0 1 0
Colorado driver behavior study captures alarming habits
Colorado driver behavior study captures alarming habits YouTube video by CBS Colorado

Absolutely damning study documenting the rate of drivers breaking the law

"extrapolated, the data projects a staggering 200,000 daily violations at just these intersections"

Confirms what everyone has experienced since Covid. All it took was to set up cameras and document it
#safestreets #bikesky

2 months ago 69 15 6 3
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Child at the podium: “A woo woo woo.”

Mamdani: That’s how I felt when we came up with this plan. Together, we will expand the idea of what is possible in our city—and what sounds and noises we can make at a press conference.

2 months ago 42784 7393 1058 1870

Cannot emphasize enough how these humble little lanes have transformed my relationship to the neighborhood for the better. I explore the neighborhood so much more, I visit businesses more often because it’s that much easier to get there quickly, I commute by bike more often because it feels safer.

2 months ago 31 8 0 0