Lotta stuff goin on here. ref should be "MO 5 Bus", and modifier tag should be removed from the way. The name should also be removed since the ref and route relation make it redundant.

And there's tons of abbreviations in the area. Holy moly

Address node within road way

"State Road 44" is a funny name for this farmland access track. I can't find any information about it. Could have just been a TIGER mistake

Should probably be a lower classification

Bridge over outer road (not interstate)

Check MO 86 here

Weird classification change on South Silver Springs Road

Armstrong Lane could perhaps be unclassified instead of tertiary?

Secondary classification should stop at Siemers Drive