Reversible or jig-back ropeways operate with one or two carriers, comprising a carriage, a hanger and the actual car, which travel to and fro between the terminals. Traction is provided via a haul rope, with the carriage running on single or twin track ropes. The cars can be built to carry anything between 20 and 200 persons at speeds of up to 12 m/s. Depending on the size of the car, line speed and line length, transport capacities vary between 500 and 2,000 persons per hour. The Group maintains a reversible competence centre at Garaventa AG in Goldau, Switzerland.