SYSTEM AND METHOD FOR COMPUTING RAIL CAR SWITCHING SOLUTIONS IN A SWITCHYARD INCLUDING LOGIC TO RE-SWITCH CARS FOR ARRIVAL RATE

• US 20100235021A1
• Filed: 05/20/2010
• Published: 09/16/2010
• Est. Priority Date: 12/30/2005
• Status: Abandoned Application

• Current Assignee: Canadian National Railway Company
• Original Assignee: Canadian National Railway Company
• Inventors: MUINONEN, Kari, MORENCY, Vincent, PATHAK, Anshu, BARKER, Matthew
• Application Number:
  US12/784,019
• Publication Number:
  US 20100235021A1
• Time in Patent Office: Days
• US Class Current: 701/19
• CPC Class Codes: B61L 17/00 Switching systems for classification yards

Abstract

A system for computing car switching solutions in a railway switch yard. The system is computer based and has an input for receiving data conveying information about one or more arrival trains arriving at the switch yard and data conveying information about departure trains to depart the switch yard. A processing entity processes the data and computes car switching solutions for the railcars.

Claims

1. A system for selecting a location in a railway switch yard in which to switch cars from a train block, the railway switch yard having a switch, a reswitching track and classification tracks, the reswitching track defining a path for recirculating cars from a position downstream the switch to a position upstream the switch, said system comprising:

i. a data processing apparatus having a CPU and a machine readable storage encoded with software for execution by the CPU;

ii. processing with the software first data conveying information about a rate of arrival of cars of the train block at the switch, to perform a selection between the reswitching track and the classification tracks in which to switch cars of the train block;

iii. the data processing apparatus having an output for releasing second data conveying results of the selection.

2. A system as defined in claim 1, wherein the data processing apparatus computes an expected switch time for one or more cars of the train block, the expected switch time for a particular car of the train block being indicative of an approximate time at which the particular car is expected at the switch.

3. A system as defined in claim 2, wherein the data processing apparatus uses the computed expected switch time of the particular car as a factor during the selection between the reswitching track and the classification tracks.

4. A system as defined in claim 1, wherein the data processing apparatus computing available space in several ones of the classification tracks to determine which classification track can receive the train block.

5. A system as defined in claim 4, wherein the data processing apparatus performs the selection by using the computed available space as a factor.

6. A system as defined in claim 1, wherein the data processing apparatus processes with the software second data conveying a pull time of the train block which indicates when the train block will vacate a classification track, the data processing apparatus performing the selection by using the pull time as a factor.

7. A system as defined in claim 1, wherein the data processing apparatus selects to locate one or more cars of the train block in the reswitching track when the rate of arrival is below a predetermined value.

8. A system as defined in claim 1, wherein the data processing apparatus selects to locate cars of the train block in the classification tracks when the rate of arrival is above a predetermined value.

9. A system as defined in claim 1, wherein the data processing apparatus has an input for receiving the first data.

10. A system as defined in claim 1, wherein the railway switch yard is a hump yard.

11. A system as defined in claim 1, wherein the railway switch yard is a flat yard.

12. A system for selecting a location in a railway switch yard in which to switch cars from a train block, the railway switch yard having a switch, a reswitching track and classification tracks, the reswitching track defining a path for recirculating cars from a position downstream the switch to a position upstream the switch, said system comprising:

i. a data processing apparatus having a CPU and a machine readable storage encoded with software for execution by the CPU;

ii. processing with the software first data conveying information about an influx of cars of the train block at the switch with relation to time, to perform a selection between the reswitching track and the classification tracks in which to switch cars of the train block;

iii. the data processing apparatus having an output for releasing second data conveying results of the selection.

13. A system as defined in claim 12, wherein the data processing apparatus computes an expected switch time for one or more cars of the train block, the expected switch time for a particular car of the train block being indicative of an approximate time at which the particular car is expected at the switch.

14. A system as defined in claim 12, wherein the data processing apparatus uses the computed expected switch time of the particular car as a factor during the selection between the reswitching track and the classification tracks.

15. A system as defined in claim 12, wherein the data processing apparatus computing available space in several ones of the classification tracks to determine which classification track can receive the train block.

16. A system as defined in claim 15, wherein the data processing apparatus performs the selection by using the computed available space as a factor.

17. A system as defined in claim 12, wherein the data processing apparatus processes with the software second data conveying a pull time of the train block which indicates when the train block will vacate a classification track, the data processing apparatus performing the selection by using the pull time as a factor.

18. A system as defined in claim 12, wherein the data processing apparatus has an input for receiving the first data.

19. A system as defined in claim 12, wherein the railway switch yard is a hump yard.

20. A system as defined in claim 12, wherein the railway switch yard is a flat yard.