[Tagging] Is tracktype=grade1 surface=compacted a valid combination?

[stevea]

Please allow me to add that what I'll call grade1 which ISN'T truly paved (or once was), but is essentially surface=compacted, is a distinctly different kind of road when it is wet, muddy or actively raining (at least for such tracks/roads around here).  These become pretty slick and even "iffy" to drive upon (especially with > about 3% or 4% slope) with a 2WD automobile when it is raining in many cases.  For example, while I could see driving perhaps as fast as 50 km/hr on such a track/road in dry weather (and daylight), if it is raining, I might reduce this to as little as 15 km/hr — or even 10 — simply for safety and maneuverability reasons.

Again, this is more true on surface=compacted, which because it isn't truly "sealed" or paved, does get quite slick and more difficult to travel upon when muddy / wet.