RECOMMENDED PREREQUISITES FOR REPLACING CABS WITH SOR IN THE BART TRAIN CONTROL SYSTEM

An evaluation is given of the prerequisites for the replacement of the train control system for the Bay Area Rapid Transit (BART). The Sequential Occupancy Release System (SOR) has several potential advantages for long-range improvement over the currently used Computer Augmented Backup System (CABS): (1) better resolution capability--train occupancy information for more than 1500 individual blocks can be displayed; and (2) better maintenance capability--an automatic problem reporting system is compatible with the SOR system. SOR will, however, have some shortcomings with respect to certain operational problems, failsafe reliability, and failure detection. It is concluded that SOR, used as a backup system, can provide a level of safety comparable to that provided by CABS.

• Corporate Authors:

  University of California, Berkeley

  Lawrence Berkeley National Laboratory
  Berkeley, CA  United States  94720
• Authors:
  • Scalise, D T
  • Evans, D M
  • Elischer, V F
  • Louis, R
• Publication Date: 1975-7-7

Media Info

• Pagination: 12 p.

Subject/Index Terms

• TRT Terms: Automatic train control; Automatic train protection; Block signal systems; Computers; Control systems; Data communications; Fail safe systems; Maintenance; Railroad trains; Rapid transit; Reliability; Safety; Safety equipment; System safety
• Identifier Terms: San Francisco Bay Area Rapid Transit District
• Uncontrolled Terms: Safeguards
• Old TRIS Terms: Block systems; On-line control systems; Rapid transit systems; Train protection
• Subject Areas: Maintenance and Preservation; Operations and Traffic Management; Public Transportation; Railroads; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00136566
• Record Type: Publication
• Source Agency: National Technical Information Service
• Files: TRIS
• Created Date: Jul 13 1982 12:00AM