The floor plan of the NYC Emergency Operations Center is a great example of pervasive information architecture, where the structure of the physical space mimics the structure/hierarchy of the people and systems in the space. It shows what each watch commander monitors, how reporting agencies and government community services like Department of Homeless Services and the Red Cross are grouped. It is a space that is designed to get optimal information flow from person to person, which supplements data flow from machine to machine.
For more, see my presentations on the Semiotics of Emergency Management.