- Routing Road Type - Choices of -1, Neutral, +1 (Level 4 required). Raises or lowers the road type used in the routing server calculations. Only applicable to Local Street , Primary Street , Minor Highway , and Major Highway . Local Street can only be raised (+1) since already the lowest priority of the main routable road types. Selecting this attribute locks the segment(s) for some editing attributes unless the editor is R4+. Should only be used with concurrence of the State Managers. Recommend having a map comment explaining why the preference is changed. Note Freeway is automatically given +1 routing preference by WME after a segment is saved; but it has no affect since Freeway is already the highest priority. If a Freeway needs to be downgraded in priority, then its road type needs to be changed.