System and method for forecasting the composition of an outbound train in a switchyard

• US 8,332,086 B2
• Filed: 09/30/2011
• Issued: 12/11/2012
• Est. Priority Date: 12/30/2005
• Status: Active Grant

• Current Assignee: Canadian National Railway Company
• Original Assignee: Canadian National Railway Company
• Inventors: Muinonen, Kari, Morency, Vincent, Barker, Matthew
• Primary Examiner(s): Nguyen, Cuong H
• Application Number:
  US13/249,487
• Publication Number:
  US 20120022729A1
• Time in Patent Office: 438 Days
• Field of Search: 701/19, 104/26.1, 104/88.02, 246/182.AB, 705/7.12
• US Class Current: 701/19
• CPC Class Codes: B61L 17/00 Switching systems for classification yards
• CPC Class Codes: B61L 17/02 Details, e.g. indicating degree of track filling
• CPC Class Codes: G06Q 10/0631 Resource planning, allocation, distributing or scheduling for enterprises or organisations

Abstract

A system for forecasting the outbound workload in a switchyard. The system has a processing entity for which receives information on railcar traffic for handling by the switchyard, wherein the railcar traffic includes railcars that are yet to be switched into classification tracks of the switchyard. For every departure train of two or more departure trains, the processing entity applies logic rules to the information to compute a forecast of railcar traffic that will be available to the departure train for transport out of the switchyard. An output releases data derived from the forecast of railcar traffic, describing the traffic available for each train of the two or more departure trains.

Claims

1. A method for building departure trains in a switchyard having a switch, said method comprising:

a. providing a data processing entity including a CPU and a machine readable storage encoded with software for execution by the CPU, the data processing entity;

i. computing for railcars yet to be switched by the switch and having respective destinations outside the switch yard, respective approximate times indicating when the railcars are expected to be available for pickup by a departure train;

ii. associating the railcars to respective departure trains, the departure trains being characterized by respective estimated departure times (EDTs) and destinations, the associating including;

1. comparing the respective approximate times with the EDTs of the departure trains;

2. selecting for each railcar a departure train on the basis of the comparing and that also has a destination that corresponds with the destination of the railcar;

3. generating for at least one of the departure trains a departure train build plan identifying railcars associated to the at least one departure train;

b. building a departure train at least in part on the basis of the departure train build plan.

2. A method as defined in claim 1, including a user interface coupled to an output of the data processing entity for communicating the departure train build plan to a user.

3. A method as defined in claim 2, wherein the departure train build plan identifies railcars that have arrived in the switchyard and railcars inbound for the switchyard and yet to arrive at the switchyard.

4. A method as defined in claim 2, wherein said software generating an alert to a user when a volume of railcars in a departure train build plan for a particular departure train would exceed a capacity of the particular departure train.

5. A method for building departure trains in a switchyard including a switch and classification tracks, said method comprising:

a. providing a data processing entity including a CPU and a machine readable storage encoded with software for execution by the CPU, for;

i. processing with the software input data identifying railcars that have not yet been switched into classification tracks for assigning the railcars to respective departure trains;

ii. computing with the software a forecast of railcar traffic that will be available to individual ones of the departure trains for transport out of the switchyard at least in part on the basis of said assigning, the forecast of railcar traffic in connection with a particular one of the departure trains including an identification of one or more of the railcars assigned to the particular one of the departure trains;

b. building one or more departure trains on the basis of the forecast.

6. A method as defined in claim 5, wherein said software determines prior to assigning a railcar to a particular departure train if space is available for the railcar in the particular departure train.

7. A method as defined in claim 5, including releasing output data describing the computed forecast of railcar traffic available for at least one of the departure trains from an output of the data processing entity to a GUI.

8. A method as defined in claim 7, wherein said GUI includes an information field displaying to a user an EDT of the at least one departure train.

9. A method as defined in claim 6, wherein said GUI includes an information field displaying to a user current status information of the at least one departure train.

10. A method as defined in claim 8, wherein the current status information distinguishes between a departing status associated with a departure train that is ready to depart and an inspection status associated with a departure train undergoing inspection.

11. A method as defined in claim 8, wherein the current status information distinguishes between a departing status associated with a departure train that is departing and a planned status associated with departure train that is planned to be build.

12. A method as defined in claim 6, wherein said GUI includes an information field displaying to a user a departure track of the switchyard assigned to the least one departure train.

13. A method as defined in claim 6, wherein said GUI includes an information field displaying to a user the number of railcars associated with the at least one departure train.

14. A method as defined in claim 6, wherein said GUI includes an information field displaying to a user the railcar traffic forecast data in terms of length of consist.

15. A method as defined in claim 7, wherein said GUI includes an information field displaying to a user the railcar traffic forecast data in terms of weight of consist.

16. A method as defined in claim 7, wherein said GUI includes an information field displaying to a user train block information conveyed by the railcar traffic forecast data.

17. A method as defined in claim 16, wherein the train block information conveys information about core blocks.

18. A method as defined in claim 16, wherein the train block information conveys information about filler blocks.

19. A method as defined in claim 16, wherein said GUI includes an information field displaying for at least one train block, the number of railcars in the train block.

20. A method as defined in claim 16, wherein said GUI includes an information field displaying for at least one block, the length of the train block.

21. A method as defined in claim 16, wherein said GUI is displaying for at least one train block, the weight of the train block.

22. A method as defined in claim 16, wherein said software does not assign the railcar to the particular departure train if there is not sufficient space for the railcar on the particular departure train.

23. A method as defined in claim 5, wherein said software performs a computation to forecast when a processing performed by the switchyard in connection with a railcar will be completed in assigning the railcar to a particular departure train.

24. A method as defined in claim 23, wherein the computation includes determining an expected switching time for the railcar.

25. A method as defined in claim 5, wherein said assigning includes assigning to respective departure trains railcars that have arrived in the switchyard and railcars inbound for the switchyard and yet to arrive at the switchyard.

26. A method as defined in claim 7, wherein each departure train is characterized by a scheduled departure time.

27. A method as defined in claim 26, wherein said GUI includes an information field displaying to a user a scheduled departure time of the particular departure train.

28. A method as defined in claim 26, wherein said GUI includes an information field displaying to a user current status information of the particular departure train.

29. A method as defined in claim 26, wherein said GUI includes an information field displaying to a user a departure track of the switchyard in which the particular departure train is located.

30. A method as defined in claim 26, wherein said GUI includes an information field displaying to a user the forecast of railcar traffic that would be available for the particular departure train, in terms of number of railcars.

31. A method as defined in claim 26, wherein said GUI includes an information field displaying to a user the forecast of railcar traffic that would be available for the particular departure train, in terms of length of consist.

32. A method as defined in claim 26, wherein said GUI includes an information field displaying to a user the forecast of railcar traffic that would be available for the particular departure train, in terms of weight of consist.

33. A method as defined in claim 26, wherein said GUI includes an information field displaying to a user the railcar traffic available for the particular departure train, broken down in train blocks.

34. A method as defined in claim 33, wherein said train blocks include core blocks.

35. A method as defined in claim 33, wherein said train blocks include filler blocks.

36. A method as defined in claim 33, wherein said GUI is displaying for at least one of said train blocks, the number of railcars in a train block.

37. A method as defined in claim 33, wherein said GUI is displaying for at least one of said train blocks, the length of a train block.

38. A method as defined in claim 33, wherein said GUI is displaying for at least one of said train blocks, the weight of a train block.

39. A method for forecasting the outbound workload in a switchyard including a switch and classification tracks, said method comprising:

a. providing a data processing entity including a CPU, a machine readable storage encoded with software for execution by the CPU and an output, for;

i. matching with the software railcars yet to be switched in the switchyard to departure trains, said matching including forecasting for a railcar the departure train that will be available to transport the railcar out of the switchyard when a processing of the railcar by the switchyard will be completed;

ii. computing with the software a forecast of railcar traffic that will be available to individual ones of the departure trains for transport out of the switchyard at least in part on the basis of said matching, the forecast of railcar traffic in connection with a particular one of the departure trains including an identification of railcars assigned to the particular departure train;

b. releasing from the output data describing the computed forecast of railcar traffic available for at least one of the departure trains.