4. The machine-readable, non-transitory storage medium of claim 1 , wherein the target attribute is a road familiarity attribute.
4. The machine-readable, non-transitory storage medium of claim 1 , wherein the target attribute is a road familiarity attribute. 5. The machine-readable, non-transitory storage medium of claim 4 , the process further comprising providing summarized directions for the scored route in response to the road familiarity attribute indicating user familiarity with the scored route.