Prototype Information and Paperwork

  1. Computer System Overview Summary of CN's TRACS/YIS, 1993
  2. Basic Movement Cycle Which List is Used for Which Movement
  3. Summary of Lists page Summary of Train and Car Routing Lists
  4. Location and Routing Codes Explanation of use of SPINS and TAG
  5. The Switchlist Used in Yard, Industrial and Road Switching Operations
  6. Train Journal - Train ID One of 3 sections of the Train Journal
  7. Train Journal - Car Consist The "Car Consist" section of the Train Journal
  8. The Yard Cut List Explanation of headings on yard Cut List

  9. Conductor Instructions as on BN, under COMPASS, 1980, describes duties of conductor on switching, through and work trains.

  10. Introduction to TRAIN, the AAR Computer-based Interchange reporting system, as described at 1970 "Cybernetics" Conference

  11. Railroads reporting using computer-based realtime car control Comments by railroads on success of using realtime car control, with reference to changes made since 1967
  12. GN uses computer for optimizing car control GN, with car-control well established, describes how they use the computer to optimize terminal operations and car supply. Mentions use of UNIVAC 1 in 1957.

  13. Uses of Computers for engineering by railroads, 1959 Assignment 4, Committee Report, Economics Of Railway Location and Operation.  Includes long lists of computer-types then currently in use. 

  14. SCL's car tracking system, and proposal to expand with car control functions. Describes SCL computer-based car-tracking system, using 70 terminals (55 in yards) communicating to central 360/40 computer. Describes proposed (car) control loop functions. 
  15. Siding numbers (zone-track), first used by PRR in 1927 Also lists PRR Chicago area siding numbers by Zone and Customer, for 1956 revision


  16. Yard Operations car routing data flow  From C&O, 1969: How advance lists become switchlists, and how waybills are handled in a yard.
  17. Yards: Expediting traffic flow Facilities for Expediting Freight Traffic Through Yards and Terminals From AREA, Vol. 50, No. 476 November 1948.  Continuation of "Assignment 6", update from previous report in 1938.
    • See item e):  use of advance lists by teletypes and punch-card-sorting machines


  18. GST Car Kind codes used in UP's COIN. COIN was "Complete Operation Information Network", the predecessor control software to TCS (see section about COIN in Railroads using realtime car control
  19. Introduction to TCS Operations control program used by MP, UP (after merging MP), and others. As in 1985, dates from 1972
  20. Example of 6-3-3 customer format Industry-wide practice: Converting customer names to 6-3-3 format
  21. Car data Car data input screen, NS, TIES February 1991

  22. Car order input screen, showing "day-of-week" car-ordering
  23. Track Inventory Query Shows which cars are on a track

  24. Advance Consists for trains. Examples of various forms of Advance consist available to yard
  25. Train Tonnage Profile for trains. Used in train handling, and noting "blocking exceptions" 
  26. Prototype waybill specifications  What prototype waybills actually look like.  With specifications for size and fonts.  Used on all railroads.

  27. What is Switching  Definition and explanation of switching practice
  28. Weighing Rules  Definition and explanation of car weighing
  29. The modern way for sorting waybills! A glimpse of why so many people are involved in manual-waybill and manual car-tracking methods

  30. Example SPOT maps

  31. Instructions to Traincrew on using Switchlists and Car Control
    (Enlarged about 50% to be legible on screen)

  32. Car Quality Card Card stapled to car after inspection


Signaling Information 

  1. Fundamental signal aspects , including CPL, from Phillips' Railroad Operation and Railway Signaling, Copyright 1942, Second Printing Copyright Simmons Boardman 1953

  2. Color Position Light (CPL) signal aspects from Farrington's Railroading from the Rear End, pages 192 and 193, Copyright Kip Farrington 1946 (note that "Farrington" is a town on the C&NE)