My original question arouse from guardrails that separate a cycle path from the road. The normal approach here is that the smooth "inner" side is towards the car traffic and the rough side (support structure) towards the cycle path. In the examples http://www.mapillary.com/map/im/9-9-x8ynIiIdpNQHeA5CWg the approach is more cycle-friendly by offering smooth sides to both, cars and cycles. The entire structure is maybe 0.3m "thick". I was thinking of using an additional tag like "symmetric" or "both" for these, as it would be a lot of work to model them as double ways.
Volker <https://lists.openstreetmap.org/listinfo/tagging> > >
_______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
