COMPUTERS IN RAILROAD CONTROL: 1965, 1975, 1985

Computer applications on railroads can be grouped into two general categories: information processing and process control. By 1964, 44 railroads had installed about 140 computers, almost none performing process control tasks. By 1975, 90 railroads had 290 computer installations of which 175 were minicomputers with about 100 used in process control applications. In the decade, minicomputers had found a wide range of applications from hump yard control to track recording car measurements. This paper discusses hump yard control, centralized traffic control (CTC), automatic car identification, track geometry measurement and less frequent applications of minicomputers including engine analysis, training simulators, flat-yard inventory and automation, hot box signal analysis and car dumping. It is estimated that there will be 500 minicomputers on railroads by 1985.

  • Supplemental Notes:
    • Presented at an Association of American Railroads, Data Systems Division, Conference.
  • Corporate Authors:

    Westinghouse Air Brake Company

    Wilmerding, PA  United States 
  • Authors:
    • Cole, N M
  • Publication Date: 0

Media Info

  • Features: Figures;
  • Pagination: 18 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00141424
  • Record Type: Publication
  • Report/Paper Numbers: Bull. N. 302 Conf Paper
  • Files: TRIS
  • Created Date: Nov 3 1976 12:00AM