I think the good city is a place which is open to everyone... right? Sort of space which "includes" everyone and can be utilized by every person from public...
However, it does not always happen that way... for example people using wheelchairs cannot access part or big part of spaces that is meant at least officially to be public. One of the ways of changing that, I think, is to show to people that this place is not inclusive, it excludes certain people... maybe even put it on a map? Wheelmap.org is something like that.
