HIGH SPEED TRAFFIC SIGNALLING

After recalling the SNCF's present signalling principles for speeds up to 200 km/h (RABIP System: On board repetition of pin-point information), the paper presents the basic specifications and technology of the future system to allow a maximum speed of 300 km/h. This system should qualify for all operational requirements for a least a 15 years period. It is a four carrier frequency system (1,700, 2,000, 2,300, 2,600 Hz), with an electronic audio-frequency track circuit, with no insulating joint, but with an electric separation joint (parallel resonant circuit), transmitting 10-bit continuous information and possibly pin-point information.

• Supplemental Notes:
  • International Engineering Conference paper. 150th Anniversary of Passenger railways.
• Corporate Authors:

  Institution of Mechanical Engineers

  1 Birdcage Walk
  London SW1H 9JJ,   England 
• Authors:
  • Weber, G
• Conference:
  • International Engineering Conference paper. 150th Anniversary of Passenger railways.
• Publication Date: 1975-9

Media Info

• Pagination: p. 176-182

Subject/Index Terms

• TRT Terms: Automatic train operation; Cab signals; High speed rail; Track circuits; Traffic signal control systems
• Identifier Terms: Societe nationale des chemins de fer francais
• Old TRIS Terms: Audio frequency track circuits; Signal systems
• Subject Areas: Operations and Traffic Management; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00131249
• Record Type: Publication
• Source Agency: International Union of Railways
• Files: TRIS
• Created Date: Apr 21 1976 12:00AM