I went on a motorcycle wine tour of Southern Arizona. I planned the trip in Street Atlas and Topo. While on the trip, I ran into a minor hitch; the road turned into a dirt road.
I didn't want to turn back around so I ventured on. It was a mostly flat road and I didn't have any problems, but I'd prefer to avoid dirt roads. I had stacked two wine bottles on their sides and it did get bumpy enough to break one--and with seven bottles, of course it was my favorite that broke. I put them all upright and used a sweatshirt to protect them; no issues after that.
How can I tell, by looking at the map, what State Routes or marked roads are main roads, and what are dirt roads? The short answer is, I can't. Sometimes the gold lines mean paved, sometimes dirt. Same for the gray "local road" types.
This is mostly a problem in rural areas. The road I was on was decently maintained (with signs warning it was a primitive road). When I got closer to Patagonia and the ranches, it was very smooth dirt, and didn't have any steep or winding turns.
But prior to that, there were several spots that if you were in an RV, you were out of luck and faced an ugly back-up to get out. If you looked at the map, you wouldn't know that. If you looked at the map for a way to get out of the area without hitting more dirt roads, you'd also be fooled.
Maps should be trustable. I understand this same road in Google Earth (and State Hwy 83) show up with a similar style. While it would mostly be user reported, it would be a big plus for DeLorme to have a way to indicate dirt road vs paved road.



