How Paris redesigned itself to be a city of bikes—not cars

It’s 8:45am on a rainy weekday morning in Paris, and I’m standing in what used to be a traffic lane in a busy neighborhood near the city’s largest train stations. Less than a block away, cars are streaming by in the rush hour commute. But here, workers have torn up the pavement and replaced it with a newly-planted park with trees, a protected bike lane, and a wide gravel path for pedestrians. Where cars once drove, someone is walking his dog. It’s one of hundreds of streets in Paris...