in the 1960s, the suburban electrical services were incorporated into the stuttgart s-bahn project. weil der stadt would be the terminus of a line. on 1 october 1978, deutsche bundesbahn launched operations s-bahn line s 6. this finally ended continuous operations from stuttgart to calw. deutsche bundesbahn operated uerdingen railbuses between weil der stadt and calw until 29 may 1983, when passenger services were abandoned. freight traffic to althengstett ended after a landslide at ostelsheim in march 1988.