(20 Mar 2022, 8:32 pm)OrangeArrow49 wrote Could Eldon Square accommodate the Blackett Street buses?

I think that's the fundamental problem here!  Eldon Square is already too full of vehicles, there's bus congestion on the roads leading to and from that area, and there's then a whole raft of additional routes that need to be squeezed through the centre somehow.  I can see the benefit of making Blackett Street pedestrian, but I cannot work out where you could then send the buses!  At least, not without causing other problems.