Sadly these maps still have our driveway as a "road."
Years ago I heard that Apple was going to use OSM data for their map app. I contacted OSM to remove our driveway. They did demote our driveway to a "private road" (the best I could do). Luckily, our driveway is not in the Apple maps app. I am still somewhat irritated particularly when I see our driveway in apps like this.
FWIW, OSM lists both my and my neighbors' long driveways as "service roads." (Which isn't an obviously incorrect classification although the actual mapping doesn't seem wholly accurate.)
The proper way to map a private driveway in OSM is `highway=service,service=driveway,access=private`. I can see why you, or a simplistic data consumer, would class that as “service road”
So, as I read it above and in the Wiki, I gather that driveway is a subset of service road? (Actually, in my specific case, it's a little more complicated in that the access to a couple houses and a couple outbuildings are interconnected so it should probably be tagged 'driveway=pipestem' as well.)
Refinement is probably a better word than subset, because it depends on how the data gets used; if someone makes a map that interprets all highway=service the same way, driveways will look just like all the rest. If they interpret service=driveway in addition to highway=service, then they will look different.
That's a bit like complaining your front door is still green. If you don't like what the person before you did, you're in charge of changing it. Power to you ;)
It was probably initially added as part of an import of US Census data (TIGER).
TIGER doesn't have all that much differentiation for minor roads, and the import didn't do anything other than a direct mapping of TIGER classes to specific sets of tags. For unnamed residential streets, it probably should have considered things like length and connectivity to downgrade a bunch of streets/roads.
Years ago I heard that Apple was going to use OSM data for their map app. I contacted OSM to remove our driveway. They did demote our driveway to a "private road" (the best I could do). Luckily, our driveway is not in the Apple maps app. I am still somewhat irritated particularly when I see our driveway in apps like this.