On Sun, Aug 19, 2012 at 11:44:21AM +0200, Fabrizio Carrai 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 ? Imho the solid_line is broken - The turn happens on a node and not on a line. So interpreting this is difficult and in case there is a sidestreet beeing allowed to turn you split up the way in 3 parts around the node of the junction? Thats broken ...
There are streets where this might make sense - but using the solid_line as indication for turning is not. All IMHO. Flo -- Florian Lohoff [email protected]
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