See Road names/USA, Road types/USA
Most of the state's roads are typed according to WSDOT functional classification. Most of the state road types are set to WSDOT's map. Of course, there are always exceptions, so the Functional Class map isn't biblical truth, but if we map the roads according to WSDOT's FC map the routing choices will be a lot better!
If you want to know more about the Federal Functional Classification check the Functional Classification article.
Locking Standard
Washington observes the following locking standards on the following types of road segments. All roads must be locked at least to the minimum level stated. If needing a segment unlocked or locked to a </> level please use the Unlock and Update Request forum.
| Segment Type | Rank |
|---|---|
| Freeway | 4 |
| Ramp | 4 |
| Major Highway | 3 |
| Minor Highway | 2 |
| Primary Street | 2 |
| |-|-|-|-|-|-|-|-|-| Railroad |-|-|-|-|-|-|-|-|-| | 2 |
| All Others | 1 |
Speed Limits
Washington follows the national guidelines for adding speed limits to the map. Local guidence will be listed on the Washington speed limit page Washington/Speed limits