ASTREE is a research project on a global command, control, and communication system for train control and traffic management developed by the French National Railways (SNCF). It is based on maintaining a distributed data base of up-to-date, accurate, and comprehensive representation of route layout and train progress. Computer applications use the image of the actual situation gathered in the data base to make (or, in some cases, to help human operators make) all decisions regarding route setting and train control. The results are transmitted back to wayside equipment and to locomotives, where they are displayed and enforced, if need be, by a penalty brake application. Development began in early 1986 and has enjoyed important resources. After a few years of definition of requirements, technological component testing, and architecture design, the first integrated test is under way with extensions planned. A large-scale, yet not vital, test is slated for 1992. If the results from the tests meet the technical and economic expectations, a full-fledged implementation could be operational on one route by 1997.

Media Info

  • Pagination: p. 133-139
  • Monograph Title: Advanced Train Control Systems 1991. Proceedings of a Symposium
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00621440
  • Record Type: Publication
  • ISBN: 0309051517
  • Files: TRIS, TRB
  • Created Date: Apr 30 1992 12:00AM