atlanta is trying to fix this by building a park over the interstate in the city center. Only tangentially related but it blows me away how ambitious the project is. The stated goal is for reconnecting communities on either side
It's a much-needed change, the side of Philly's Chinatown to the north of the freeway is clearly suffering compared to the south side. It's such a stark difference.
In Berlin there's a park, Westpark am Gleisdreieck, that occupies an old rail yard and covers up a rail tunnel underneath. I can testify although it still feels like the park is a dividing line between separate communities on each side, it's nowhere as divisive as an actual railway that you couldn't just walk over.
It's a widely recognized problem in the US - they built the highways through the politically marginalized communities. The Biden administration has a program to repair some of that, and I wonder if that's where Atlanta is getting funding.