Traffic jam prediction device and method
First Claim
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1. A traffic jam prediction device receiving traffic jam information from a traffic information center, the device comprising:
- a controller configured to sample current traffic jam information for at least two successive temporal cycles, to estimate a current traffic state of a road link based on first current traffic jam information of a most recent temporal cycle and a change between the first current traffic jam information of the most recent temporal cycle and a second current traffic jam information from at least a temporal cycle preceding the most recent temporal cycle, and to predict a current traffic jam degree of the road link based on the first current traffic jam information and the current traffic state as estimated.
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Abstract
A device and method to enable the prediction of a traffic jam even when the road environment changes. On the basis of up-to-the-minute, i.e., current, traffic jam information and changes from the preceding traffic jam information, the current traffic state is estimated. On the basis of the up-to-the-minute traffic jam information and the current traffic state, the current traffic jam degree is predicted. The results can be used in a conventional navigation method and apparatus to plot driving routes for a vehicle.
72 Citations
20 Claims
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1. A traffic jam prediction device receiving traffic jam information from a traffic information center, the device comprising:
a controller configured to sample current traffic jam information for at least two successive temporal cycles, to estimate a current traffic state of a road link based on first current traffic jam information of a most recent temporal cycle and a change between the first current traffic jam information of the most recent temporal cycle and a second current traffic jam information from at least a temporal cycle preceding the most recent temporal cycle, and to predict a current traffic jam degree of the road link based on the first current traffic jam information and the current traffic state as estimated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A traffic jam prediction device, comprising:
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traffic state sampling means for sampling current traffic jam information for at least two successive temporal cycles; traffic state estimating means for estimating a current traffic state of a road link based on first current traffic jam information of a most recent temporal cycle and a change between the first current traffic jam information of the most recent temporal cycle and a second current traffic jam information from at least a temporal cycle preceding the most recent temporal cycle; and traffic jam degree predicting means for predicting of a current traffic jam degree of the road link based on the first current traffic jam information and the current traffic state from the traffic state estimating means.
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11. A traffic jam prediction method, comprising:
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sampling current traffic jam information for at least two successive temporal cycles; estimating a current traffic state of a road link using a controller, the current traffic state estimated based on first current traffic jam information of a most recent temporal cycle and a change between the first current traffic jam information of the most recent temporal cycle and a second current traffic jam information from at least a temporal cycle preceding the most recent temporal cycle; and predicting a current traffic jam degree of the road link using the controller, the current traffic jam degree predicted based on the first current traffic jam information and the current traffic state of the road link. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification