No idea, if my tag-as-you-like is fine: Anybody care to come up with something official? I see it mostly on compacted tracks, but it might also be of interest for (pedal|motor) cyclists on roads paved with asphalt having crowning, regarding grip on left|right curves (where counter-traffic is a concern.)
This could be called a crown line. incline:across= has been used for the transverse gradient, mainly for wheelchair= accessibility. You really have to measure it to be useful, in order to shown it’s significantly steep.
But it can only handle one-sided superelevation on turns, and sidepaths now. Furthermore, there are transitions between them for straight and curved sections, and the existence of rolling crowns.
The crown line doesn’t have to be at the roadway center either. It can be offset away from the centerline between 2 directions when widened asymmetrically. I don’t know how the camber is developed on merges / diverges at junctions.
This is finally complicated by how it can be curved and round as shown, not straight and linear. Even *:start= + *:end= hasn’t defined a circular arc transition.
Relatedly, there are “adverse camber” supplementary plates to warning signs of hazard==curve or =curves , and a truck rollover symbol (but it can really apply to any large or heavy vehicles, not only hgv literally). I don’t know its effect on bikes. On the contrary, adverse camber can be used for safety to promote lower speeds on roundabouts.
Mammi71
(One feature, Six mappers and still More ways to map it)
3
Ich hätte nicht nachfragen müssen, mir war klar, was Du meinst.
Aber: muss man das mappen? Grundsätzlich sollte jeder vernünftig zu entwässernde Weg so aufgebaut sein, das haben schon die alten Römer so gemacht (bevor man es im Mittelalter wieder vergessen hat). Hier in diesem Beispiel ist das nur überdeutlich erkennbar.
Tatsächlich macht man das nicht überall, weil es mehr Aufwand bereitet und teurer ist.
I didn’t have to ask, I knew what you meant.
But do you have to map it? In principle, every sensibly drained path should be constructed in this way; the ancient Romans already did it this way (before it was forgotten again in the Middle Ages). Here in this example, it’s just very clearly recognisable.
In fact, it’s not done everywhere because it’s more work and more expensive.
We drive on the right hand side of the road. The effect will be, that a left curve will get and adverse camber and a right curve will get a banked camber. Bikers have to lean into the left curve more with full body than into the right curve. Cutting an S-curve will get you banked both times Only do that on good sight!
I mapped it, just for fun. A track that is part of a MTB route recently got rebuilt and even more “bombiert” (as the local engineers call it) than the one pictured above. Changes the feel quite a bit.
Only do that on good sight!