STADTWERKE Verkehrsgesellschaft Frankfurt-am-Main held a ceremony at Festhalle/Messe station on February 10 to mark the opening of the long-planned extension of U-Bahn Line U4. Participating in the event were Mayor Petra Roth, Federal Transport Minister Kurt Bodewig and the Hessen Minister for Economy, Transport & Development Dieter Posch.

Construction of the 1·7 km extension from Hauptbahnhof to Bockenheimer Warte, with one intermediate station at the Messe, has taken 11 years. The line replaces a street section of tram route 19, which has been diverted to augment the busy route 16.