Genomförda utredningar och försök med längre och tyngre tåg i Sverige

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The purpose of this report is to give an account of the studies and tests carried out in Sweden with longer and heavier trains since the early 1990-ties. The material for this report is based on investigations carried out by the Swedish Rail Transport Administration (Banverket, since 2010 Trafikverket) in cooperation with i.e. the Swedish States Railways ( SJ Gods, since 2000 Green Cargo) and other rail operators (MTAB) and shippers (i.e. LKAB, SSAB, Ovako), the Norwegian Rail Administration (Jernbaneverket) and the Swedish counties Gävleborg and Dalarna, Additional information has been obtained through interviews with people from Trafikverket who have previously worked at Banverket. Before any further development work is carried out, the following conclusions, from the material presented in this report, are highlighted for consideration:

  • •There have been a very limited number of specific tests for heavy and long trains in Sweden. The supporting documents, obtained within the framework of this project, describe tests and investigations which were carried out since the early 1990s.
  • •With regard to heavier trains, embankment and bridge bearing capacity is a limiting factor for trains with high axle loads (e.g.stax 25 tonnes) and tonnes per metre (e.g. stvm 8 tons/m or more). Pending upgrade of tracks and bridges, these limitations can be handled by introducing speed restrictions on the sections with weak bearing capacity.
  • •The limitations for long trains are mainly linked to the length and number of sidings required to operate 750 metre (or longer) trains. The available track length at the shunting is also a factor that limits the possibilities to assemble and dismantle long trains.

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