I now think that ref should be used, as davespod suggested. A few roads were already set with the County Road number in ref, and they render well. This allows both the official name and the County Road number to be displayed simultaneously. Another ref plus is the ability to use multiple road numbers separated by a semicolon. Very handy for our state and federal highways, which overlap.

Right or wrong, I'm also including "CR" for county roads, and "SR" for state routes. This is nomenclature long used by the Georgia Department of Transportation, and I think will weed out confusion. Just adding "27" in the ref tells nothing, and federal roads imported from TIGER have the US prefix in the ref tag.

I've just finished a 1st pass over two Georgia counties, and have indicated road type as best as possible. FK270673 passed along a URL to a GADOT road classification such as the one pointed out here, and that was a good starting point.

However, there seems to be some disagreement over road classification. For instance, in rural counties a secondary road is a two-lane paved road equal to state and federal class roads. A tertiary road can also be paved, but it tends to be a step down in quality, with "tends" as the key word. County maintained dirt roads, indicated in Georgia by a County Road Number in addition to a name, is tertiary. I had a hard time with that one, as I know of a few that can just barely support two-lane traffic.

I think a bigger issue is surface type. I've noted this while editing roads.

These are good suggestions. I've tinkered with the boundary attributes, but without much results. Will come back to it later. I may have to just delete the boundary and draw it again, or copy the attributes from one of the examples above, paste it to the boundary, and edit it for local values.

I'm not sure about the ref key. Perhaps that's the way to go. On the other hand, some county road numbers already show up in name_1.

Unfortunately, this isn't a driveway. It's like a public highway running through an industrial park. In theory, businesses could locate along the road.

Thanks. I wasn't aware of that DOT map. It's possible I'll have to bump some paved roads up to secondary, which opens another set of problems - some paved roads not shown with a higher classification on the DOT map have just as heavy traffic. However, some of the county roads (most, actually), are just barely wide enough for two cars to pass. Usually one driver has to stop and pull over as far as you dare to the ditch. Whether that's tertiary . . .