In the passage, the author was writing about how architecture can influence the way people act.  She used examples of how even one-way streets separate people because it does not make the area easily accessible to everybody.  The author used larger examples of government buildings to support her argument.  “That the Constitutional Court in Germany is in Karlsruhe, while the capital is in Berlin, limits the influence of one branch of government over the other.”  Personally, I do not agree that we use street signs to separate people and keep certain people out of an area, but when it comes to the bigger picture, like powerful government buildings, I agree that architecture can separate people.