On 9 April 2011 08:15, Peter Miller <[email protected]> wrote:
> > > On 6 April 2011 16:53, Ed Loach <[email protected]> wrote: > >> Richard wrote: >> >> > I'd put the number for cars (ie 70mph for a dual carriageway), and >> > the source if it's not the number that's on the sign. >> >> This is similar to what I've done. For areas where a national speed >> limit applies I have used >> maxspeed= (maximum speed for cars, which is the maximum >> maximum I believe, if you see what I mean) >> I was also tagging >> maxspeed:type=national >> or >> maxspeed:type=national_dual_carriageway >> (no others apply locally). I added these mainly for my use in case >> the government ever change the maximum speed for cars on such roads, >> as has been rumoured on occasion in the press, so that I can use >> XAPI or JOSM or similar to update the maxspeed values more easily). >> > > We seem to be nudging towards something close to a conclusion. > > Can I suggest that the following two methods are valid, however the second > one should be considered to be 'better' and where it is used then it should > be retained to avoid edit warring. > > I have worked a bit on the 'type' tagging to allow it to include the county > which might be GB or UK depending on how Northern Ireland interprets the > rules - is it always the same as the rest of the UK? > > On reflection the convention used elsewhere to put the IT:urban or whatever > into the source:maxspeed tag seems to be misunderstanding the purpose of > source tag which should be for such explanations as 'survey' or 'TfL open > speed data' or whatever. Notice that I am have used 'GB:urban' for the 30mph > no sign situation to match up better with 'IT:urban' etc. > > I have added some more examples for each method for clarity > Method 1 > maxspeed=national > source:maxspeed=survey > maxspeed=xx mph source:maxspeed=survey > > Method 2 > maxspeed=60 mph > maxspeed:type=GB:dual_carriageway (or GB:motorway, GB:rural, GB:urban) > source:maxspeed=survey > maxspeed=70 mph maxspeed:type=GB:motorway source:maxspeed=survey maxspeed=60 mph maxspeed:type=GB:rural source:maxspeed=survey maxspeed=60 mph maxspeed:type=numeric sign source:maxspeed=survey maxspeed=30 mph maxspeed:type=GB:urban source:maxspeed=survey maxspeed=30 mph maxspeed:type=numeric sign source:maxspeed=survey > > If we can agree on the above I will add it to the relevant wiki pages. > > > > Regards, > > > Peter > > > >> >> Then chriscf splattered a load of source:maxspeed tags across the >> roads, so I added those too to other national speed limit ways I >> tagged (to save him doing it) - after reading the wiki it seems to >> be a fairly well used tag in some other countries, though chriscf >> made up the UK values he used; I suggested he add them to the wiki >> but apparently past experiences means he doesn't want to touch the >> wiki "until there's a *major* shift in mindset there". Again he >> distinguishes between single carriageway and dual carriageway with >> the values he chose. >> >> Ed >> >> >> _______________________________________________ >> Talk-GB mailing list >> [email protected] >> http://lists.openstreetmap.org/listinfo/talk-gb >> > >
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