I recently discovered a road made with milestones (not wooden roadsigns) that led over various cliffs. I couldn't follow the trail, walking, without constantly having to manually climb something, walk to the next milestone, and try again to follow. I.e. it appears that milestone roads work across cliffs. This was not true for roadsigns in world 15, and probably isn't true for roadsigns in world 16 either.
This is not, however, even hinted at in the wiki.
I've also discovered by experience in world 15 that when trees randomly sprout near a roadsign based road, the teleport function is likely to break. One then teleports as far as one can go, tries to follow the road to the next roadsign, and finds that pathfinding fails. You then try to figure out what the problem is, whether it's a young tree, a dropped object, or something someone has built. If possible, you destroy (or move) the offending object(s). Failing that, you destroy roadsigns and recreate them elsewhere, restoring a functional path.
This, too, is not explained in the wiki.
Finally, there's a lot of weirdness about destroying milestones/roadsigns. There appears to be no mechanic for destroying a roadsign or two to reroute someone else's road around an obstacle. (Perhaps you are using a road someone built long ago, before they quit maintaining it. Or perhaps you want to redirect someone else's road around a place you'd like to settle.) You get told the road is not yours, even if the offending roadsign is on your claim. I presume this is to avoid griefers destroying random roads for lulz, but I'd like to understand exactly how this works. It appears that milestones can sometimes be destroyed by a person who didn't build that road - I observed someone doing this in world 16. He was presumably kin to the road creator, and probably in the same village.
So I've now got a lot of questions:
- what do I need to know to decide where to place a milestone road? How does this change if it's a roadsign road?
- can milestone roads handle cliffs and similar? presumably this is only for teleporting?
- how do roads interact with thickets, beyond the likelihood of blockage by trees within the thicket?
- what do I need to know about maintaining roads?
- how does the permission-to-destroy scheme work?
- what else should I know, that I don't know enough to ask?
Thanks in advance for any enlightenment.