Method and system for developing traffic messages
First Claim
Patent Images
1. A method for developing traffic messages comprising:
- obtaining data indicating traffic speed at a first location, at a second location, and at a third location, said first, second and third locations are located along a road;
comparing the traffic speed of said first location to the traffic speed of said second location;
if a difference between said the traffic speed of said first location and the traffic speed of said second location is within a threshold value,grouping the first location and the second location into a congestion event;
comparing an average traffic speed of said first location and said second location to the traffic speed of said third location;
if a difference between said average traffic speed and the traffic speed of said third location is within said threshold value, andgrouping said third location into said congestion event.
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Abstract
A method for developing traffic messages is disclosed. Data indicating traffic speed at a plurality of locations on a road network are obtained. Each of the locations is assigned a unique location reference code. The data indicating traffic speed for the location reference codes assigned to locations along a road of the road network are evaluated. Locations reference codes along the road having related traffic speeds are grouped into at least one congestion event along the road. The congestion events are transmitted as traffic messages.
148 Citations
20 Claims
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1. A method for developing traffic messages comprising:
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obtaining data indicating traffic speed at a first location, at a second location, and at a third location, said first, second and third locations are located along a road; comparing the traffic speed of said first location to the traffic speed of said second location; if a difference between said the traffic speed of said first location and the traffic speed of said second location is within a threshold value, grouping the first location and the second location into a congestion event; comparing an average traffic speed of said first location and said second location to the traffic speed of said third location; if a difference between said average traffic speed and the traffic speed of said third location is within said threshold value, and grouping said third location into said congestion event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for developing traffic messages comprising:
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using a plurality of location reference codes assigned to a plurality of locations along a road; obtaining data indicating traffic speed at said locations represented by said location reference codes; comparing data indicating traffic speed at two of said locations; if said compared traffic speeds differ by less than a predetermined value, aggregating said location reference codes representing said compared locations, wherein said aggregated location reference codes representing contiguous locations along said road; comparing an average traffic speed of said two aggregated location reference codes to the traffic speed at a third location reference code; if a difference between said average traffic speed and the traffic speed of said third location reference code is within said threshold value, aggregating said third location reference code into said congestion event; and creating a traffic message from said aggregated location reference codes. - View Dependent Claims (17, 18, 19, 20)
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Specification