"LRTs displace all the poor people"?

[tomh009]

Indeed, there are lessons to be learned from 50+ years ago.
But I don't think that building no public housing needs to be the obvious takeaway from that.

In the case of Regent Park, the rebuild is a success, but it's almost entirely just replacing existing public housing at a 1-1 rate. It is just treading water.

I don't think municipal governments in general (at least in Canada) have much appetite for building public housing at this point. A P3 arrangement could possibly work, by having a private developer build and operate the housing within a well-defined affordable housing framework. Ideally, as Dan said, with less than 50% affordable so as to avoid the Regent Park-type issues.  (Of course there can also be multiple levels of affordability and that could be one option.)