SIGNALING: YESTERDAY, TODAY, AND TOMORROW

As Union Switch and Signal reaches its 100th birthday, the application of computers to train movement control is now marked by the use of minicomputers. The next evolutionary stage, the large-scale integrated circuit or microprocessor, is now starting to be utilized for railroad control applications. While computer-aided dispatching, readily handled by minicomputers, is somewhat restricted when microprocessors are used because of their limited "memory," the distributed functions of dispersed microprocessor installations still can provide an overall capability. Electronics technology is causing new looks to be taken at traditional relay-based vital (affecting safety) control systems.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1586268
• Corporate Authors:

  Simmons-Boardman Publishing Corporation

  508 Birch Street
  Bristol, CT  United States  06010
• Publication Date: 1981-5-11

Media Info

• Features: Photos;
• Pagination: p. 16
• Serial:
  • Railway Age
  • Volume: 182
  • Issue Number: 9
  • Publisher: Simmons-Boardman Publishing Corporation
  • ISSN: 0033-8826
  • Serial URL: http://www.railwayage.com

Subject/Index Terms

• TRT Terms: Centralized traffic control; Dispatching; Fail safe systems; Information processing; Microprocessors; Minicomputers; Reliability; Safety; Signaling
• Subject Areas: Railroads; Safety and Human Factors;

Filing Info

• Accession Number: 00334954
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 9 1981 12:00AM