> of roads. If I got this right, we don't have to split the road
> if it has identical points (like in roundabouts),
> instead it should be sufficient to
> replace the point with a new Coord instance.
> I'll try that.
no, (of course) that doesn't work, as it will prohibit to route across
that point in the roundabout.

But splitting can be improved when we try to split at points
that are already connected to other roads. This creates
fewer routing nodes.

Gerd