On 20 August 2012 12:57, Markus Lindholm <[email protected]> wrote: > On 20 August 2012 09:39, Elena ``of Valhalla'' <[email protected]> > wrote: >> On 2012-08-19 at 14:09:18 +0200, Markus Lindholm wrote: >>> 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. >> >> This doesn't correspond to reality: I believe that an emergency >> vehicle can cross a solid line, while of course they would >> have problems with a physically separated road. > > I consider legal restrictions to be part of reality. Also consider > that a physical separation might be nothing more than a 20cm high curb > that could be as easy to cross for an emergency vehicle as a painted > line.
One other aspect: it would not be possible to create correct routes from an address that's in a middle of a block where the the street has lanes in both direction but that are legally separated. Now if the shortest route would be to turn left (in a country with right hand traffic) but the legal route would require to start the trip by going right, there's no way to express that without having to separate highways, one in each direction. /Markus _______________________________________________ Tagging mailing list [email protected] http://lists.openstreetmap.org/listinfo/tagging
