The A line is the north-to-south main line of the Frankfurt U-Bahn. It is the oldest and longest line of the U-Bahn system. Served by four routes starting at Südbahnhof Railway Station in Sachsenhause
U1 station Nordwestzentrum
U2 at Hauptwache station
Terminus Hohemark station
Construction of the Frankfurt U-Bahn
The D Line is a partially completed north‒south route of the Frankfurt U-Bahn. The line has been planned since the 1960s and as of 2021 three sections had been constructed and were in use for U-Bahn s
U-Bahn Line A (Frankfurt U-Bahn)
…reversing sidings (2 tracks) Bommersheim Nieder-Eschbach Weißkirchen Os Bonames Ost (planned) fare zone Bad Homburg Frankfurt Bonames Mitte A 5 Kalbach route D route D Niederursel A 661 Wiesenau Riedwiese/Mertonviertel route D Zeilweg Sandelmühle Heddernheim Depot Heddernheim River Nidda Frankfurt-Escherheim…
Festhalle/Messe station
In addition to the FRTC Frankfurt model U-Bahn station facility, the Frankfurt Fire Brigade use the Line D "Practice Tunnel" (Feuerwehr Übungstunnel) at Frankfurt Hauptbahnhof for training.