Polluting gridlock on the right. A functional and sustainable transportation system on the left.

🚸 Cities shouldn’t be judged by traffic speed, but by how freely children play. In Amsterdam, the focus is shifting: not anti-car, but pro-children. 🌱 A city that works for kids—safe, green, playful—works better for everyone.

The single fastest way to eliminate fatal & severe crashes on city streets is to slow down motor vehicles. This is objectively true, but keeping speed at or below 25MPH is wildly offensive to people.

TheFarix IAmMiami Andy Boenau Higher speeds exponentially increase crash severity since kinetic energy scales with velocity squared, amplifying impact forces and extending stopping distances. Fatality risk in vehicle crashes roughly doubles for every 10 mph increase, per NHTSA data, as higher velocities

Copenhagenize your city streets.

Findings from Philly's pilot program using on-street parking to protect bike lanes: ✅ Severe & fatal crashes are down ✅ Average driver speeds are down (sometimes by 30%!) ✅ Bicycle ridership increased significantly

E-bikes are going to have way more of a positive impact on human flourishing than e-cars. DIE ZEIT

The most important thing about this amazing Paris transformation is how fast it happened —how fast people on bikes “appeared” —once streets were transformed. You can’t write this off as “#Paris was always this way,” because it wasn’t. It took leadership.

The humble bicycle is a wonder drug that doesn't even require a prescription. Reduce heart disease, cancers, diabetes, stroke, and dementia. 🚲 🚲 🚲 Bike more, live longer.

Electric cars are not invented to save our cities, societies or the world. They are only invented to save big industry. (🖼️ by Antonio Huerta)

This should be in every traffic engineering text book.

A better world is possible if you can imagine it.

"Cyclists need to stop at stop signs so motorists can ignore stop signs without hitting cyclists." Common sentiment in the US.

The American mind cannot comprehend this level of childhood independence.

“Parisian car traffic fell by more than half between 2002 and 2023, while cycle lanes expanded sixfold. Bikes now make more than twice as many journeys as cars.” Financial Times

This guy explains why walking in cities tends to feel more enjoyable than walking in the suburbs.

Win win 🚌 Bus isn't stuck in traffic, so it can be an express sidewalk. 🚲 Bikes are welcome to use the bus lane.

🗣️ 'Our city can't change. We are not #Amsterdam!!1!' Well. #Amsterdam wasn't #Amsterdam either. It took bold political choices and consistent efforts.

Walkable mixed use developments are possible, and people are building them. But those people have to fight: the politicians the planners the engineers the fire marshall the bankers the appraisers and the neighbors

The most important thing about this amazing Paris transformation is how fast it happened —how fast people on bikes “appeared” —once streets were transformed. You can’t write this off as “#Paris was always this way,” because it wasn’t. It took leadership.