I have seen these markings along some trails recently.
They are different from the usual coloured stripes on white background, which are used for marking trails. Here, there are only two stripes, a white one and a red one.
Which organization is responsible for these markings?
How should we put them on the map?
I see that the usual white-red-white markings are mapped like this:
- The way has tag colour=red
- The relation has network=lwn, operator=itc, osmc:symbol=red:white:red_stripe
Here, the already mapped way with white+red marking has colour=red but belongs to no relation:
In order to clarify the appearance of the marking (white+red, not white+red+white), we need to put this osmc:symbol tag somewhere. Open Street Map wiki (http://wiki.openstreetmap.org/wiki/Key:osmc:symbol) suggests that we can only put it on a relation.