SUW 2000

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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 two border stations, enabling trains to Lithuania 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 Rafil Type V systems.[1]

As of February 2007, a single SUW 2000 bogie cost the equivalent of $42,000.[2]


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:

Installed 1,435 mm (4 ft 8 12 in) - 1,520 mm (4 ft 11 2732 in)

The SUW 2000 method of variable gauge system was designed by Ryszard Suwalski.[6]

See also[edit]


  1. ^ Kanclerz, Miroslaw (9 October 2007). "Study on European Automatic Track Gauge Changeover Systems (ATGCS)" (PDF). Gdansk: UIC. Retrieved 7 December 2008. Variable gauge systems: SUW 2000, Poland; DBAG/Rafil Type V, Germany; CAF BRAVA, Spain; Talgo RD, Spain; Japan RTRI; Korea KRRI [..] DB Rafil and PKP SUW 2000 are technically compatible and thereby ‘interoperable’
  2. ^ Butkevičius, Jonas (1 February 2007). "Development of passenger transportation by railroad from Lithuania to European states" (PDF). Transport. XXII (2): 76. ISSN 1648-4142. Retrieved 7 December 2008. additional funds should be provided for the acquisition of 8 units of SUW 2000 axles. These axles are required for replacement during the maintenance inspection and during the exploitation in case of defects, as production of one wheel-gauge usually takes 6 months. The price of acquisition of one SUW 2000 amounts to about 115 thous. Lt. The total sum, needed for acquisition of wheel-gauges, would make up 0,92 mill. Lt[permanent dead link]
  3. ^ a b Waryń, Piotr (May 2005). "Experience and results of operation the SUW 2000 system in traffic corridors: I – Warsaw – Vilnius, III – Krakow – Kiev, II – Warsaw – Minsk – Moscow" (PDF). PKP Intercity. Archived from the original (PDF) on 19 March 2009. Retrieved 7 December 2008. ... Beginning of operation: 29 October 2000; Place: Polish – Lithuania border; activation of the track gauge changing facility (TSP) in Mockava (LG). ... Beginning of operation: 15 December 2003; Place: Polish – Ukrainian border; activation of the track gauge changing facility (TSP) in Mostiska-2 (UZ)
  4. ^ Experience of SUW 2000 Archived 19 March 2009 at the Wayback Machine - see map on page 19
  5. ^ Steane, Paul. "Border Crossings: Poland - Ukraine". Enthusiast's Guide to Travelling the Railways of Europe. Retrieved 30 August 2011. (Przemyśl -) Medyka PKP - Mostiska 2 UZ (- Lvov): [E] Starting from 1st June 2009, PKP operates a daily night train Kraków - Lvov, using the 1435mm gauge line to/from the SUW2000 gauge changing facilities at Mostiska 2. The 1520mm daytime passenger trains use the gauge changing facilities at Przemyśl. UZ works freight trains to Medyka. On the Polish side the 1520mm gauge continues to Zurawica, on the Ukrainian side 1435mm gauge track ends at Mostiska 1.
  6. ^ Kopacz, Henryka (10 June 2003). "PKP SUW 2000 – revolution in rail transport". Polish Market Online, Corporate Spotlight. Retrieved 7 December 2008. The SUW 2000 system developed by Ryszard Suwalski, D. Sc., C.E. allows automatic wheel span adjustments on rolling stock, enabling trains to travel over different-gauged tracks. [...] Mr Suwalski’s invention involves special junctions which adjust wheel span to track gauge as stock travels through.

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