I know that in Germany and in Argentina roads are being classified based primarily on administration level (national, regional, city, etc.). Classifying like this probably works well when the entire road system is well maintained.
In Brazil, however, we had tons of discussions on how to do it and ended up deciding (though reluctantly) to classify based on several objective structural characteristics that seemed closely related to "importance". That is mostly because many regional/municipal roads are definitely more important (thus, preferable) than other, smaller national roads. Here's what we ended up with: http://i.imgur.com/YH8azIA.png On Sat, Nov 2, 2013 at 4:56 PM, Chris Hill <[email protected]> wrote: > On 02/11/13 18:47, Jonathan wrote: >> >> This question is really aimed at UK roads but the same may apply to other >> countries. >> >> I'm not clear with the distinction of a Trunk road in the UK. The wiki >> suggests a trunk road is "high performance roads that don't meet the >> requirement for highway >> <http://wiki.openstreetmap.org/wiki/Key:highway>=motorway >> <http://wiki.openstreetmap.org/wiki/Tag:highway%3Dmotorway>" which to me >> would suggest an A road that is a dual carriageway. Further on in the wiki >> it says that any A road in the UK signed with "Green" signs is a "Trunk" >> road. >> >> >> I know of many "Green" "A" roads that aren't much more than country lanes, >> they are definitely not "high performance" and I don't feel they should be >> "Trunk" roads, I feel they should be "Primary" roads. >> > Perhaps you might like to see this question from the help system: > https://help.openstreetmap.org/questions/228/uk-road-was-detrunked-why-does-osm-still-have-it-tagged-highwaytrunk > > -- > Cheers, Chris > user: chillly > > > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging -- Fernando Trebien +55 (51) 9962-5409 "The speed of computer chips doubles every 18 months." (Moore's law) "The speed of software halves every 18 months." (Gates' law) _______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
