Hi, In Finland most of our main roads have their speed limit changed for up to six months in the winter. The change takes place over a period of (usually) a few weeks, partly depending on the area's weather conditions. The change is mostly done by changing the physical actual traffic signs, although on some of the more recent main roads there are variable speed limit signs. It's therefore a bit different than other scenario speed limits, for example smog and hazard limits.
I've been using the following scheme: – maxspeed defining the normal (summer) maxspeed, to ensure that there's a decent value that all software understands. – maxspeed:seasonal:winter for winter maxspeed, and :forward/:backward appended as necessary On motorways with variable speed limits I've additionally added a maxspeed:variable:max to indicate the highest (summer) speed limit allowed on the highway. I'd like to document the scheme I've used to OSM wiki, but I'd like to hear your input on a) does this sound sensible or should we make some changes and b) does this need to go through the proposal process or could it be documented as a de facto approved tag? P.S. I found three ways that these winter speed limits are currently tagged: – maxspeed:seasonal:winter (2864 uses) – maxspeed:conditional=80 @ (winter) (570 uses) – maxspeed:winter (167 uses) And a few one-way taggings: – maxspeed:seasonal:winter:forward (13 uses) – maxspeed:backward:seasonal:winter (4 uses) – maxspeed:seasonal:winter:backward (3 uses) A bit unrelated: – maxspeed:practical:winter (45 uses) – minspeed:winter (8 uses) Best regards, -- Jyri-Petteri Paloposki _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
