We don't really do street closures in the US. There are plenty of great urban squares in the US, they just have a ring of streets surrounding them before the buildings begin. Most US cities are a grid, so usually this is just an open block in the grid with dense development on each side.
To my mind, the most important thing is a consistent wall of buildings around the public space that provide solid walls to the urban "room". Having it be entirely pedestrianized is nice but not strictly necessary. I'd also add, for a piazza, that most of the space be paved and not vegetated, with few or no trees, and the space must function as a civic gathering place and not just a recreational zone or green space. In this category you could put parts of Union Square in NY, Pioneer Courthouse Square in Portland, Union Square in SF, Daley Plaza in Chicago, Faneuil Hall Square in Boston, etc. Also some nice ones in surprising places, like Sundance Square in Fort Worth.
Unfortunately in a lot of cases the American fetish for landscaping and "escaping the concrete jungle" means that most open spaces in cities became green spaces, where the desire to "protect the grass" and "protect the trees" severely limits the activities that are legally allowed.
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la forme d'une ville change plus vite, hélas! que le coeur d'un mortel...
Last edited by ardecila; Feb 7, 2018 at 8:28 PM.
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