At the end of the 1960s, ideas about an underground railway line to Spandau arose again. The planned extension to Line 7 through Mierendorffplatz, Jungfernheide, and Nonnendammallee was chosen to improve public transportation to Siemensstadt—important for its many jobs. Already at the time, there were plans to build a subway to Spandau. First steps were taken with the extension of the line of today's line U2 to Ruhleben. The terminus Ruhleben is located directly on the district border to Spandau. Feeder and distribution traffic, until 1967 by tram, replaced by several bus lines, provided solely for the development of Spandau on the subway station Ruhleben.