In 1979 the DB installed for the first time about 100 switch points made of S54 rails, thus following the trend to heavier types of switches so as to carry heavier loadings than in the past and to reduce the extent of the increasingly difficult track maintenance work. A time schedule has been drawn up for almost all existing S49 switch point types in which after the end of 1982 the usual forms and then the less common but indispensable forms are to be developed. The concept for the transition from the S49 to the S54 provides that initially all switches of the 1st order be built with S54 rails. The requirements for the new switches have been agreed with all interested parties. They must permit a speed of 200 km/h on the main or through line and must support axle loadings of up to 22 tonnes. The design takes account of experience gained with the highly-loaded and frequently fast-run UIC 60 switch points and the successful S49 types used for decades on tracks of all kinds. Outside dimensions, the 1.435 mm gauge and the vertical rails are as for the S49 switch point, but the sleeper spacing has been reduced to 60 cm, which has a considerable effect on the detail design. In view of the very widely varying requirements, two different check-rail designs will be used alongside each other for a time until operating experience permits standardization. In view of supply difficulties with long wooden sleepers, steel sleeper sets are in preparation for some S54 switch types, while the planning of concrete sleepers for switches is in progress.

  • Corporate Authors:

    Hestra Verlag

    Holzhofallee 33, Postfach 4244
    6100 Darmstadt 1,   Germany 
  • Authors:
    • Morgenschweis, O
  • Publication Date: 1979-9


  • German

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00308435
  • Record Type: Publication
  • Source Agency: British Railways
  • Files: TRIS
  • Created Date: Feb 27 1980 12:00AM