This could be a solution but it is against the reality: this kind of road are indeed a single entity. The "legal" division, i.e. the "solid_line" is just an attribute. Indeed, the current mapping rules [1] indicate that separate ways have to be traced when there is a physical division.
Ciao Fab [1] http://help.openstreetmap.org/questions/4572/when-to-use-two-parallel-ways-for-roads [2] http://wiki.openstreetmap.org/wiki/Editing_Standards_and_Conventions#Divided_highways 2012/8/19 Markus Lindholm <[email protected]> > On 19 August 2012 11:44, Fabrizio Carrai <[email protected]> > wrote: > > After a short discussion on the italian talk, I would move the > discussion in > > this list. After some tests with OSRM, I missed the availability of a > tag > > to mark the continuos (or discontinued) line that divide the lanes in > > several single carriageway. > > > > In my opinion this is an important indication to the routers to avoid > > illegal turns across a road. A typical useful application case is a road > > with many side road [2]. Actually the problem is solved with several turn > > restriction relations, one for each side way. Tagging the main way with > > "divider=solid_line" the problem would have been solved in a easier way, > > also reflecting the real status of the road. > > > > Indeed a "Divider=solid_line" proposal [3] was already presented . I'm > would > > revamp such proposal. > > What is your opinion ? Is there any router developer here ? > > > > In my opinion it's best to treat legal separation (i.e. solid_line) > the same way as physical separation, i.e. create two separate > highways, one in each direction. > > /Markus > > _______________________________________________ > Tagging mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/tagging >
_______________________________________________ Tagging mailing list [email protected] http://lists.openstreetmap.org/listinfo/tagging
