Something similar happened to Broadway in New York City.

It used to be a main thoroughfare, packed with cars in bumper-to-bumper traffic. But after the city decided to pedestrianize it, by banning cars, adding bike lanes, and converting much of the street into outdoor cafes, it's not the same place.

There's no more chaos and now it's a quiet and pleasant street. It's quieter, safer, and more peaceful than before. But it's lost that chaotic and vibrant energy that made it so famous.