was the only trolley line in the Solingen network on which no articulated buses could be used. Line 683 was therefore the last line on which the MAN SL 172 HO rigid buses were used. Enlargement of the turntable would have presented technical and financial difficulties. In the middle of November 2009, line 683 was completely converted to use modern Swisstrolley articulated vehicles manufactured by Carrosserie Hess. They have a diesel-powered auxiliary drive with which they operate to and from the Seilbahn Burg ropeway terminal. There, a new bus station was built for line 683 and other bus lines. The former "Burgbrücke" stop, which was located in the short cul-de-sac between Solingerstraße and the turntable, was moved to the other side of the Wupper river. Future The Unterburg turntable, which is no longer needed, is to be permanently preserved for special journeys of the Trolleybus Museum. It also benefits from the fact that it was only renovated in the middle of 2004 and thus has a lifespan of ten to fifteen years. However, according to SWSA, a final decision on the future of the world's only remaining trolleybus turntable has not yet been made. Gallery References External links Drehscheibe für Obus Video eines Drehvorgangs auf youtube.com 1980 aufgenommenes Bild mit Verlängerungsaufsatz Trolleybus transport in Germany Solingen