S-Bahn in Munich in August 1971. Tram lines were still important but the S-Bahn and U-Bahn were being expanded in 1971.
Robert Rynerson
CC BY 2.0
<a rel="nofollow" class="external free" href="https://www.flickr.com/photos/135141530@N04/50728092722/">https://www.flickr.com/photos/135141530@N04/50728092722/</a>