Public approves Frankfurt U-Bahn U2 extension, Germany October 31, 2018 | Europe News The plan to extend Frankfurt U-Bahn Line U2 by 1.6 km from Gonzenheim station to Rhine-Main S-Bahn Line S5 and Taunas Line (RB 15) regional service has received approval from the public of Bad Homburg... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password