I think this depends vastly on the city. An unhealthy city won't have these kinds of benefits. I think, particularly in the climate that I'm in, a /cave of st

I think this depends vastly on the city. An unhealthy city won't have these kinds of benefits. I think, particularly in the climate that I'm in, a /cave of steel/ style city WOULD have those benefits. If instead of streets for cars we had a mesh of (Babylon 5 style) 'zocolo' (sp) markets that had smaller storefronts and a lightly park like median.