JOINTLESS TRACK CIRCUITS AND ELECTRIFIED RAILWAYS

In the first place, the author poses, and then discusses, the problem of the jointless track, its advantages, interference with traction current, choice of the frequencies to be used, effect of the type of traction current, as well as of the arrangement of the traction, and of the connections to the rail of the overhead contact line supports, and the earthing of the rails, detection of rail fractures, positive safety in the case of failure, and protection against any failure not involving safety. He then describes the principle types of jointless track circuit used, i.e. ASTER 1 w., 16 w. type V, VM, Mini-Bond, Wee-Zee, and the Welco Alsthom, and Marquardt systems.

• Corporate Authors:

  Institution of Railway Signal Engineers

  London,   England 
• Authors:
  • Grose, B H
• Publication Date: 1972-11-15

Media Info

• Features: Figures;
• Pagination: 17 p.

Subject/Index Terms

• TRT Terms: Signaling; Track circuits
• Subject Areas: Operations and Traffic Management; Railroads;

Filing Info

• Accession Number: 00048283
• Record Type: Publication
• Source Agency: International Railway Documentation, Selection of
• Report/Paper Numbers: Advance Paper
• Files: TRIS
• Created Date: Jan 11 1976 12:00AM