Granted Patent B2

US 8,149,139 · App. 12/476,355 · Granted Apr 3, 2012

Abstract

Claims (59)

1. A method executed using a dynamic pricing toll system for determining a toll charge for vehicles traveling on a toll lane, the method comprising:

determining via the toll system a rate of change in traffic flow of vehicles traveling on the toll lane;

determining via the toll system a rate of change in speed of vehicles traveling on the toll lane; and

determining via the toll system the toll charge for vehicles traveling on the toll lane using a weighting approach that weights the rate of change in traffic flow by a first factor and weights the rate of change in speed by a second factor, the first factor depending on whether the rate of change in traffic flow is increasing or decreasing, and the second factor depending on whether the rate of change in speed is increasing or decreasing.

2. The method of claim 1 , wherein the traffic flow is defined as a rate at which vehicles travel pass a section of the toll lane over a predetermined period of time.

3. The method of claim 1 , wherein the speed is defined as an average speed of vehicles traveling on the toll lane.

4. The method of claim 1 , wherein the determining via the toll system the change in traffic flow includes determining via the toll system a difference between a current traffic flow and a previous traffic flow.

5. The method of claim 4 , wherein the first factor is also dependent on the current traffic flow of vehicles traveling on the toll lane.

6. The method of claim 5 , wherein the first factor is greater for a current traffic flow that is proximate an optimum traffic flow than a current traffic flow that is proximate a minimum traffic flow, the optimum traffic flow and the minimum traffic flow being user-defined parameters.

7. The method of claim 1 , wherein the determining via the toll system the change in speed includes determining a difference between a current speed and a previous speed.

8. The method of claim 7 , wherein the second factor is also dependent on the current speed of vehicles traveling on the toll lane.

9. The method of claim 8 , wherein the second factor is greater for a current speed that is proximate an optimum speed than a current speed that is proximate a maximum speed, the optimum speed and the maximum speed being user-defined parameters.

10. A method executed using a dynamic pricing toll system for determining a toll charge for vehicles traveling on a toll lane, the method comprising:

determining via the toll system a rate of change in traffic flow and speed of vehicles traveling on a toll lane;

determining via the toll system a rate of change in traffic flow and speed of vehicles traveling on a non-toll lane that runs parallel with the toll lane;

weighting via the toll system the rate of change in traffic flow and speed of vehicles traveling on the toll lane in relation to a current traffic flow and speed for the toll lane;

weighting via the toll system the rate of change in traffic flow and speed of vehicles traveling on the non-toll lane in relation to a current traffic flow and speed for the non-toll lane; and

determining via the toll system the toll charge by combining the weighted rates of change in traffic flow and speed for the toll lane and the weighted rates of change in traffic flow and speed for the non-toll lane.

11. The method of claim 10 , wherein the determining the change in traffic flow and speed of vehicles traveling on the toll lane and non-toll lane includes:

determining via the toll system a difference between the current traffic flow and a previous traffic flow; and

determining via the toll system a difference between the current speed and a previous speed.

12. The method of claim 11 , wherein the weighting the change in traffic flow and speed of vehicles traveling on the toll lane includes:

weighting via the toll system the change in traffic flow of vehicles traveling on the toll lane by a first factor, the first factor depending on whether the change in traffic flow for the toll lane is increasing or decreasing; and

weighting via the toll system the change in speed of vehicles traveling on the toll lane by a second factor, the second factor depending on whether the change in speed for the toll lane is increasing or decreasing.

13. The method of claim 12 , wherein the weighting the change in traffic flow and speed of vehicles traveling on the non-toll lane includes:

weighting via the toll system the change in traffic flow of vehicles traveling on the non-toll lane by a third factor, the third factor depending on whether the change in traffic flow for the non-toll lane is increasing or decreasing; and

weighting via the toll system the change in speed of vehicles traveling on the non-toll lane by a fourth factor, the fourth factor depending on whether the change in speed for the non-toll lane is increasing or decreasing.

14. The method of claim 10 , wherein the traffic flow is defined as a rate at which vehicles travel pass a section of the toll lane or non-toll lane over a predetermined period of time;

wherein the speed is defined as an average speed of vehicles.

15. A toll system comprising:

a first sensor for sensing a traffic flow of vehicles traveling on a toll lane;

a second sensor for sensing a speed of vehicles traveling on the toll lane; and

a controller operatively coupled to the first and second sensors for receiving information regarding the traffic flow and the speed, of vehicles traveling on the toll lane and configured to:

determine a rate of change in the traffic flow of vehicles traveling on the toll lane;

determine a rate of change in the speed of vehicles traveling on the toll lane; and

determine a toll charge for vehicles traveling on the toll lane using a weighting approach that weights the rate of change in the traffic flow by a first factor and weights the rate of change in the speed by a second factor, the first factor depending on whether the rate of change in traffic flow is increasing or decreasing, and the second factor depending on whether the rate of change in speed is increasing or decreasing.

16. The toll system of claim 15 , wherein the change in the traffic flow of vehicles traveling on the toll lane is defined as a difference between a traffic flow determined at a current point in time and a traffic flow determined at a previous point in time; and

wherein the change in the speed of vehicles traveling on the toll lane is defined as a difference between a speed determined at the current point in time and a speed determined at the previous point in time.

17. The toll system of claim 16 , wherein the first factor is also dependent on the current traffic flow of vehicles traveling on the toll lane; and

wherein the second factor is also dependent on the current speed of vehicles traveling on the toll lane.

18. The toll system of claim 17 , wherein the first factor is greater for a current traffic flow near an optimum traffic flow as compared to a current traffic flow near a minimum traffic flow, the optimum traffic flow and minimum traffic flow being user-defined parameters;

wherein the second factor is greater for a current speed near an optimum speed as compared to a current speed near a maximum speed, the optimum speed and maximum speed being user-defined parameters.

19. The toll system of claim 15 , further comprising:

a third sensor for sensing a traffic flow of vehicles traveling on a non-toll lane; and

a fourth sensor for sensing a speed of vehicles traveling on the non-toll lane;

wherein the controller is operatively coupled to the third and fourth sensors for receiving information regarding the traffic flow and the speed of vehicles traveling on the non-toll lane and configured to:

determine a rate of change in the traffic flow of vehicles traveling on the non-toll lane;

determine a rate of change in the speed of vehicles traveling on the non-toll lane;

weight the change in traffic flow of vehicles traveling on the non-toll lane by a third factor, the third factor depending on whether the rate of change in traffic flow for the non-toll lane is increasing or decreasing;

weight the rate of change in speed of vehicles traveling on the non-toll lane by a fourth factor, the fourth factor depending on whether the rate of change in speed for the non-toll lane is increasing a decreasing; and

determine the toll charge by combining the weighted rate of change in traffic flow and speed for the toll lane and the weighted rate of change in traffic flow and speed for the non-toll lane.

20. The toll system of claim 19 , wherein the change in the traffic flow of vehicles traveling on the non-toll lane is defined as a difference between a traffic flow determined at a current point in time and a traffic flow determined at a previous point in time; and

wherein the change in the speed of vehicles traveling on the non-toll lane is defined as a difference between a speed determined at the current point in time and a speed determined at the previous point in time.

21. A method executed using a dynamic pricing toll system for determining a toll charge for vehicles traveling on a toll lane, the method comprising:

determining via the toll system a rate of change in traffic flow of vehicles traveling on the toll lane, the traffic flow being defined as a rate at which vehicles travel pass a section of the toll lane over a predetermined period of time;

determining via the toll system a rate of change in speed of vehicles traveling on the toll lane, the speed being defined as an average speed of vehicles traveling on the toll lane;

predicting oncoming traffic conditions via the toll system using a weighting approach that weights the rate of change in traffic flow by a first factor and weights the rate of change in speed by a second factor, the first factor depending on whether the rate of change in traffic flow is increasing or decreasing, and the second factor depending on whether the rate of change in speed is increasing or decreasing; and

determining via the toll system the toll charge for vehicles traveling on the toll lane based on the predicted oncoming traffic conditions.

22. The method of claim 21 , wherein the first factor is also dependent on the current traffic flow of vehicles traveling on the toll lane, and the second factor is also dependent on the current speed of the vehicles traveling on the toll lane.

Assignments (8)