Re: [Tagging] Mapping as two ways or one, u-turns
On Sun, Mar 4, 2012 at 13:03, Steve Bennett stevag...@gmail.com wrote: On Sun, Mar 4, 2012 at 9:20 PM, Markus Lindholm markus.lindh...@gmail.com wrote: There was a proposal like that https://wiki.openstreetmap.org/wiki/Proposed_features/Divider that has been abandoned. Not sure of the reason. I also created one: http://wiki.openstreetmap.org/wiki/Talk:Proposed_features/Divided_road In my case, the reason for abandoning it was, well, proposing *any* feature is an exercise in frustration and futility. Ultimately, the way to get any feature adopted is through the use of force: implement a style, do a mass import, add support to an editor. Getting any kind of sensible discussion about a possible change like this is next to impossible. Maybe mapping them as separate ways is ok, it certainly seems a lot simpler than the divider=* tagging page. This is a big step from current guidelines, and why shouldn't I map lanes as separate ways then? -- /emj ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Mapping as two ways or one, u-turns
On Mon, Mar 5, 2012 at 10:49 AM, Erik Johansson erjo...@gmail.com wrote: This is a big step from current guidelines, and why shouldn't I map lanes as separate ways then? Why not. As soon as you tag them as 'lanes' and not 'highways' just for routing convenience. Pieren ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Mapping as two ways or one, u-turns
On 3 March 2012 10:07, Vincent Pottier vpott...@gmail.com wrote: Le 03/03/2012 08:49, Erik Johansson a écrit : There is nothing separating this road yet it is mapped as two ways: http://osm.org/go/0bCzcBhNM--?m http://goo.gl/KLTpu (Streetview) IMHO, it's a mistake. This is done for routers. Imagine you want to go from the marker to number 117, as it is mapped today the router will know that you can't go back on the same street directly. How can this be mapped with out mapping this as two ways, as it's said in the Editing standards: http://wiki.openstreetmap.org/wiki/Editing_Standards_and_Conventions#Divided_highways IMHO, there is a lack of a tag saying that the road can't be crossed, except at crossings e.g. tag:crossable=no. If it is forbiden to U-turn it at a cross, a restriction relation must tell it, or maybe a different tag if all crossings are concerned, e.g. tag:crossable=not_at_all. There was a proposal like that https://wiki.openstreetmap.org/wiki/Proposed_features/Divider that has been abandoned. Not sure of the reason. I think that having separate ways for legally separated opposing lanes is the best scheme currently to represent the truth on the ground. Disclosure: I'm the one who mapped Hornsgatan as it is today. /Markus ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Mapping as two ways or one, u-turns
I think that having separate ways for legally separated opposing lanes is the best scheme currently to represent the truth on the ground. I'll actually support that. For now, the best approcah I've found is to: - map how car goes (substitute car vith your favourite transport) with highway=* lines, never polygons; - map where the road is with area:highway polygons (http://wiki.openstreetmap.org/wiki/Key:area:highway) You can have a look at the result at: http://openstreetmap.by/?zoom=17lat=55.77682lon=37.58551lang=envia=37.580903,55.774461;37.588305,55.778311vehicle=car note that routing lines actually follow the way the driver should move, and that large areas of asphalt are shown in their exact boundaries. Try dragging the markers to play with it. :3 Komяpa, OSM BY Team ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Mapping as two ways or one, u-turns
On Sun, Mar 4, 2012 at 9:20 PM, Markus Lindholm markus.lindh...@gmail.com wrote: There was a proposal like that https://wiki.openstreetmap.org/wiki/Proposed_features/Divider that has been abandoned. Not sure of the reason. I also created one: http://wiki.openstreetmap.org/wiki/Talk:Proposed_features/Divided_road In my case, the reason for abandoning it was, well, proposing *any* feature is an exercise in frustration and futility. Ultimately, the way to get any feature adopted is through the use of force: implement a style, do a mass import, add support to an editor. Getting any kind of sensible discussion about a possible change like this is next to impossible. Steve ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Mapping as two ways or one, u-turns
Le 03/03/2012 08:49, Erik Johansson a écrit : There is nothing separating this road yet it is mapped as two ways: http://osm.org/go/0bCzcBhNM--?m http://goo.gl/KLTpu (Streetview) IMHO, it's a mistake. This is done for routers. Imagine you want to go from the marker to number 117, as it is mapped today the router will know that you can't go back on the same street directly. How can this be mapped with out mapping this as two ways, as it's said in the Editing standards: http://wiki.openstreetmap.org/wiki/Editing_Standards_and_Conventions#Divided_highways IMHO, there is a lack of a tag saying that the road can't be crossed, except at crossings e.g. tag:crossable=no. If it is forbiden to U-turn it at a cross, a restriction relation must tell it, or maybe a different tag if all crossings are concerned, e.g. tag:crossable=not_at_all. -- FrViPofm ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
[Tagging] Mapping as two ways or one, u-turns
There is nothing separating this road yet it is mapped as two ways: http://osm.org/go/0bCzcBhNM--?m http://goo.gl/KLTpu (Streetview) This is done for routers. Imagine you want to go from the marker to number 117, as it is mapped today the router will know that you can't go back on the same street directly. How can this be mapped with out mapping this as two ways, as it's said in the Editing standards: http://wiki.openstreetmap.org/wiki/Editing_Standards_and_Conventions#Divided_highways -- /emj PS. I feel that OSM suffers from too many mailinglists. PPS. http://help.openstreetmap.org/questions/4572/when-to-use-two-parallel-ways-for-roads ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
