We will be needing places like this:
Perfect parkour areas, great z level action scenes, high densities of zombies, good chances of weapon and drug stashes, good chances of everything collapsing around you after a badly planned molotov/explosive/hulk encounter, crazed and maniacal gang men etc.
Well it may not make sense for such shanty towns to be in the middle of newengland but this is the distopic america of the dark future we are talking about people.