Thanks for the info and yes I'm aware of the wiki page. But can you explain why West Barlett Road was upgraded from residential to Tertiary? It doesn't have a shoulder and just has the default county speed limit. And that is just one example of my concern. 

Can I suggest you discuss these edits on OSM US Slack #local_washington channel or on the OSM community forum at https://community.openstreetmap.org/c/communities/us/ before making more changes?
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            Published using OSMCha: https://osmcha.org/changesets/160838828
            