Previous "Superblocks" discussion on HN:

Superblocks: how Barcelona is taking city streets back from cars[0] (2016) - 236 comments

What New York Can Learn from Barcelona’s ‘Superblocks’[1] (2016) - 133 comments

Superblocks: Barcelona’s plan to take back streets from cars[2] (2019) - 31 comments

[0]: https://news.ycombinator.com/item?id=12237966

[1]: https://news.ycombinator.com/item?id=20200760

[2]: https://news.ycombinator.com/item?id=12633414