Tricable gondola lift

A Leitner tricable gondola lift at the Stubaier Gletscher, Austria
A Doppelmayr tricable gondola lift in Sölden, Austria
Operation and maintenance of tricable gondola lift "Penkenbahn" in Mayrhofen, Austria

The tricable gondola lift, also known as the 3S gondola lift, is a cable car system that was developed by the Swiss company Von Roll transport systems in Thun to unite the benefits of a gondola lift with those of a reversible cable car system. '3S' is an abbreviation of the German word dreiseil, meaning 'tricable'.