Patent ID: 8910010

Claim:
A method of detecting errors in road characteristics defined by one or more attributes associated with a transportation network database, comprising: in a server computer, performing operations for: collecting a plurality of sequential location measurements from each of a plurality of probes traversing between two end points; fitting trace segments having at least one of a curved and linear shape between the plurality of sequential location measurements collected from each of the plurality of probes to form a probe trace for each of the of the plurality of probes; comparing a position of at least one of the plurality of probe traces with a position of a calculated path between the two end points, where the calculated path is formed from a plurality of linked transportation network segments, each of the linked transportation segments having at least one of a curved or linear shape, where the calculated path follows the road characteristics defined by the one or more attributes associated with the one or more of the linked transportation segments; and identifying a potential error in the one or more attributes if a number of the plurality of probe traces deviating in position from the calculated path is greater than a deviation threshold.