Hi! 2013/2/23 Philip Barnes <p...@trigpoint.me.uk>: > On Fri, 2013-02-22 at 17:38 +0100, Martin Vonwald wrote: >> Hi! >> >> Recently the use of the key maxspeed:type was documented in the wiki >> (see [1] and [2]). It seems to be used in the UK for the same purpose >> as source:maxspeed. I quote: "In the UK the general practice is to use >> the maxspeed:type tag as the source:*=* should be for how the data was >> collected, not how it was derived. " >> >> Well - there's a point. Yes, I know how often source:maxspeed is >> tagged (241,738 times). But besides being tagged, is it "used" for >> anything at the moment? >> > It is used to indicated a speed limit that is not explicitly signposted, > such as by a the National Speed Limit sign > http://wiki.openstreetmap.org/w/index.php?title=File:UK_traffic_sign_671.svg&page=1
> The motorway 'chopsticks' sign, or a change from single to dual > carriageway. > > I am not aware of it being used, but will make changes a lot easier if > the limits ever change. There is discussion about raising the motorway > limit to 80mph. You can achieve exactly the same with maxspeed:type. And usually we use the key source for how we collect the data, but not the key source:maxspeed . In my opinion maxpeed:type is also a much more intuitive key than source:maxspeed. As in the UK examples in the wiki we (potentially) would get an additional piece of information and would be more consistent. maxspeed=50 -> what is the speed limit? maxspeed:type=AT:urban -> what kind of speed limit is is? source:maxspeed=survey -> how was the information regarding the speed limit collected? But I'm just asking questions. If no-one cares that's perfectly ok for me and I'll keep on using source:maxspeed. regards, Martin _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
