SUW 2000

SUW 2000 is a type of variable gauge system that allows a train to travel across a railway break-of-gauge.
The SUW 2000 design is manufactured by Polish company ZNTK Poznań for Polish State Railways (PKP). It is used at three border stations, enabling trains to Lithuania, Belarus and Ukraine to proceed without the need for lengthy bogie exchange.
Similar, but incompatible, systems are produced by Talgo (Talgo-RD) and Construcciones y Auxiliar de Ferrocarriles (CAF-BRAVA). The SUW 2000 is interoperable only with the German Rafil Type V systems (built by the Radsatzfabrik Ilsenburg).
, a single SUW 2000 bogie cost the equivalent of $42,000.
Routes.
The following interchange and break-of-gauge locations were fitted with a SUW 2000-compatible track gauge changing facility, allowing trains crossing those routes to be fitted for gauge-changing, rather than bogie-replacement:
The SUW 2000 method of variable gauge system was designed by Ryszard Suwalski.