superblock
n.— «“Superblocks” is the term for developments (whether a housing project or the World Trade Center) where city streets are demapped so that the development stands as a world unto itself without reference to surrounding streets and sidewalks. Amsterdam Houses is a superblock, but its buildings line up on an axis and the pedestrian pathways don’t lose their reference to the surrounding grid.» —“Top-Notch Public Housing” by Francis Morrone New York Sun (New York City) Oct. 6, 2006. (source: Double-Tongued Dictionary)