Some embodiments provide a method for conflating geometries to a road in a map region for an electronic mapping service. The method receives a first geometry representing a road. The method receives several geometries arranged such that a gap representing the road is between the geometries. The gap is not aligned with the first geometry representing the road. The method expands the geometries toward the first geometry such that the geometries converge at the first geometry. The road geometry is for drawing over the plurality of other geometries by a client mapping application.