A significant element of the city's public transportation system, what is the name of the fast transit system in Berlin?

The Berlin U-Bahn serves as the primary mode of transportation in the capital, alongside the S-Bahn, a network of suburban railway lines and a tram network that runs mostly in the eastern part of the city. The U-Bahn, which began operations in 1902, serves 175 stations over nine lines, and has a total length of approximately 97 miles, about 80 percent of which is underground.

Asked by Vasilii Kulev · Last updated 4 years ago · 2.2K views · SOURCE