VEHICLE MAP DATA MANAGEMENT

A computer includes a processor and a memory, and the memory stores instructions executable by the processor to receive a set of points indicating a lane boundary; select a first subset of the points, wherein the set of points includes a first point that is not in the first subset; determine a path of the lane boundary based on the first subset of the points; and, upon determining that the first point is greater than a threshold distance from the path, add the first point to the first subset.