ESTIMATION METHOD OF TRAFFIC INFORMATION
First Claim
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1. A method for estimating traffic information of a first road section at a first time point, the method comprising the steps of:
- (a) calculating an average speed of the first road and a speed and an average speed of each of second road sections adjacent to the first road section at the first time point;
(b) calculating a space related information value of the first time point by multiplying the difference between the speed and the average speed of each of the second road sections at the first time point with a corresponding adjacent link weighted value and adding up the thus-obtained multiplied values of the second road sections; and
(c) calculating a speed estimation value of the first road section at the first time point by adding the space related information value to the average speed of the first road section.
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Abstract
The present invention provides a method of estimating traffic information of a road section at a particular time point on the basis of the traffic information of the road at the time point or points before the particular time point and the traffic information of the adjacent roads.
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5 Claims
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1. A method for estimating traffic information of a first road section at a first time point, the method comprising the steps of:
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(a) calculating an average speed of the first road and a speed and an average speed of each of second road sections adjacent to the first road section at the first time point; (b) calculating a space related information value of the first time point by multiplying the difference between the speed and the average speed of each of the second road sections at the first time point with a corresponding adjacent link weighted value and adding up the thus-obtained multiplied values of the second road sections; and (c) calculating a speed estimation value of the first road section at the first time point by adding the space related information value to the average speed of the first road section. - View Dependent Claims (2, 3, 4, 5)
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Specification