For the roads, do you mean like lego's sorta, where the sizes all match up for infinite road designs/possibilitys? I will do that, it sounds fun. I'll put some ramps on the hospital too.But those red ledges in front of the openings are for hover ambulances, so no helicopters.I think I'll add a pad somewhere though. When you say "Modules of green areas", do mean parks?

I eat babies.