[readthenotes1]

The interstate system comes to mind, with neighborhoods torn apart.

"Wrong side of the tracks" used to be a phrase with meaning for a reason.

[JKCalhoun]

I assumed the interstate system would benefit from no longer being in a constant state of needing repair.

And I'm not sure if you're suggesting more train tracks would be laid in cities to divide communities? I assumed the discussion was about better utilizing the infrastructure we already have for rail.