| 摘要 |
Techniques to aggregate traffic information with rich trip lines include a traffic service that, in response to receiving data indicating a current position, determines an ordered plurality of trip lines that indicate positions where a traffic condition is to be reported, and returns data that indicates the ordered trip lines. The trip lines are ordered such that a traveler encountering two trip lines of the plurality of trip lines in a different sequence indicates that a position near a third trip line was not detected by the traveler. A client process includes determining whether two trip lines are encountered in a different sequence than in an ordered plurality of trip lines received from the traffic service. If the two trip lines are in a different sequence, then sending, to the traffic service, data indicating an undetected trip line between the two trip lines.
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