To John: Those are all very good points. This one is particularly interesting:
>An example of this issue is where a road with no sidewalks meets another road with sidewalks, but does not cross it (and is not in an urban environ, so there is no real paint to show a crossing=zebra) . Do you add a crossing=unmarked that goes from the sidewalk to the node of the road’s T junction? People on the sidewalk far side of the T junction will expect to be able to cross the street there and continue on the road. I don't think we really have adequate tags to describe that situation, so everyone makes due by either doing what you suggest (a half-crossing) or connecting footways/sidewalks directly to roads. Neither makes perfect semantic sense: it's not really a road crossing and it's also not really a sidewalk, it's just a change of path that a pedestrian would realistically need to make. It should probably use an entirely new tag for a pedestrian transition of some sort (not unlike a *_link for roads), but that would of course need to be hashed out in a separate proposal. In the meantime, I also tend to use highway=footway, footway=crossing, crossing=unmarked to connect an ending sidewalk to the road. On Fri, Jul 14, 2017 at 11:46 PM Andre Engels <[email protected]> wrote: > My strategy in this kind of case is to add those driveways and virtual > crossings that are useful for routing purposes. So if there is a > junction, if there is a driveway opposite it, I will add that driveway > (or maybe just the part of the driveway upto the sidewalk), if there > is none, but people can cross there (in the case you describe: If > there is an interruption in the hedge), I add a footway from the > sidewalk to the junction, if neither is the case, I add the driveway > or crossing point that is closest to the junction (on both sides if > necessary). > > On Fri, Jul 14, 2017 at 3:48 PM, Marc Gemis <[email protected]> wrote: > > Another typical case > > > > - no explicitly marked crossings > > - sidewalk parallel to road > > - kerb separating sidewalk from road > > - hedge, interrupted for each driveway and at the junctions, placed on > > sidewalk, parallel with road. > > > > --> need to add all driveways ? > > --> need to draw virtual crossings at junctions ? > > > > m > > > > > > On Fri, Jul 14, 2017 at 3:41 PM, Mike N <[email protected]> wrote: > >> On 7/14/2017 8:14 AM, Marc Gemis wrote: > >>>> > >>>> but merge sidewalk with the road where the is no space/barier between > >>>> them. > >> > >> > >>> and that's were the discussion starts. When I asked when one has to > >>> draw a separate sidewalk a few weeks ago on this mailing list someone > >>> answered: as soon as there is a kerb. > >> > >> > >> Similarly, I have been combining sidewalks with roads where there is > no > >> separation. But when there is a small grass separation from the > roadway, > >> they are drawn separately. For those cases, it is usually allowed to > cross > >> the grassy separation and the road to get to the opposite sidewalk. > >> > >> Throwing out the R word here - what about a relation that defines > which > >> disconnected ways could be walked to or across from any point on a > current > >> way? That would also include the road since there would be no barrier. > >> > >> > >> > >> _______________________________________________ > >> Tagging mailing list > >> [email protected] > >> https://lists.openstreetmap.org/listinfo/tagging > > > > _______________________________________________ > > Tagging mailing list > > [email protected] > > https://lists.openstreetmap.org/listinfo/tagging > > > > -- > André Engels, [email protected] > > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging >
_______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
