This building, located just outside Zurich Hauptbahnhof, is home to the Zentralstellwerk Zürich (central signal box).  Designed by Max Vogt, architect to the Swiss Federal Railway, it was built in 1966.  An entry on the World Public Library website says that it, "... is equipped with a computerized controller that performs the standard operations. Apart from the tracks and points (switches) of the "Sihlpost station" (which are controlled by an electronic control system), the entire control of the points and signals in the Langstrasse–Concourse section is still largely under relay control, in some cases with the original relay sets installed in 1966"