The Berlin U-Bahn is a rapid transit system in Berlin, the capital city of Germany, and a major part of the city's public transport system. The Berlin U-Bahn is a rapid transit system in Berlin, the capital city of Germany, and a major part of the city's public. With its ten lines, the U-Bahn (underground, subway) Berlin runs along a network of approximately kilometres and includes stations. Most metro lines. Please note: Masks required in public transport. Currently, people in Berlin have to wear FFP2 masks on buses, suburban trains and underground trains. On April. The U-Bahn is Berlin's subway system. It stands for “underground railway” in German and was built in The city's underground played an important role. All train lines in one map. Find disturbances and construction work, lifts, timetable information and tips for excursions. Line U9 was opened shortly before the Berlin Wall was erected in It runs entirely on former West Berlin territory and is an important north-south axis. The city-state of Berlin has a long-established underground network, with the first trains running in The system h. Population – Berlin. The Berlin metro light blue line is 32 kms long and serves 40 stations. It is the longest line in Berlin metro. A complete trip takes 57 minutes. It begins in. Your public transportation in Berlin: timetable information, tickets, subscriptions, apps, traffic news & tourist info.