In front of the main train station, tram line 11 towards Schießhüttenstraße goes directly to the Ostbahnhof/EZB stop, where the ECB building is located. The car-free alternative goes by S-Bahn to Hauptwache and from there continues to Ostbahnhof with the U6.
From the visitor center of the Frankfurt Stock Exchange at Börsenplatz, a short walk leads to the nearby Hauptwache station. The S-Bahn lines S1 to S6, S8, and S9 run from there towards the main station, which can be reached in two stations and under five minutes of travel time.
Parts of this description were translated automatically.