IMO, comparing bus stops to post boxes or phone booths is a bit specious. Of course the bus stop shelter, or sign, is off the road/street. Or else they would cause some problems to motorists ! But they are in fact closely tied to that road, as the buses that stop there drive on that road, not aside it. OTOH, when you want to use a post box or a phone booth, you normally don't just stop on the road nearby, you have to park somewhere and walk to it. Thus they are really off-road features, unrelated to the road.
> -----Message d'origine----- > De : [EMAIL PROTECTED] [mailto:talk- > [EMAIL PROTECTED] De la part de Mark Williams > Envoyé : mardi 26 août 2008 00:34 > À : robin paulson > Cc : OSM Talk > Objet : Re: [OSM-talk] Left and Right? > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > robin paulson wrote: > > Rory McCann wrote: > >> Gervase Markham wrote: > >>> What's current tagging best practice with things which are to the > left > >>> or the right of a way (e.g. bus stops)? > >>> > >>> A nearly-approved proposal for a canal-side object has been > objected to > >>> by someone who thinks that the tag should be on a node which is > part of > >>> the canal rather than next to it, with left/right indicated as part > of > >>> the tag key name. > >>> http://wiki.openstreetmap.org/index.php/Proposed_features/Mooring > >>> > >>> Do we do that for any other tags? Do we have highway:left=bus_stop? > >>> > >>> Gerv > >> Personally I add the node to left of the way, not as part of the > way. I > >> believe the OSM theory is that the way represents the middle of the > >> road. So things like mini-roundabounds and traffic lights are part > of > >> the way (ie road), but a bus stop is off to the side of the road. > > > > the problem with this is that 'bus stop' (and canal mooring, etc,) > > implies a place where the bus stops, which is on the road. > > > > the fact the bus shelter, or sign, or bench, is some distance off to > the > > side of the road shouldn't matter - the bus itself stops on the road, > so > > the node imo should be part of the way > > > > if the bus stop is off to the side of the road, i.e. not connected to > > it, then the bus can't physically get to it, which seems very wrong > > > > or, consider from the pedestrian's point-of-view: > > it is assumed for all roads except motorways and where explicitly > > stated, that there is foot=yes access. in which case, the > > footpath/sidewalk/pavement is therefore part of the way which > represents > > the road; we don't draw a separate way off to one side, running > > parallel. the bus stop must be on the footpath for the pedestrian to > be > > able to walk up to it, so again it must be part of the way > > > > this problem is i think muddled by the fact we represent an area (a > > road) with a linear object (a way), which theoretically has zero > width, > > so the natural step from this is to say: > > 'the way represents the centre of the road, and the bus stop/canal > > mooring is not in the centre of the road, it's at the side of the > road, > > so I'll put it to one side of the way' > > > > as for placing the node to one side of the way in order to get the > icon > > to be placed correctly, this sounds a lot like 'tagging for the > renderer' > > > > I disagree with this view. > Do you tag post boxes as way nodes? Shops? Telephones? > No... > So why bus stops? They aren't in the road. They are sites on the side, > like all of the above. It makes no sense to tag them as way objects. > > I have seen the arguments about knowing which way they belong to; IMHO > this is specious, no bus company works by looking at OSM to see where > to > route their buses, but a map user may well want to know just where the > bus stop is - Anyone looking at a map of where they are who doesn't > know > which side they drive, is in trouble. The same goes for any navigation > software. > > It really isn't hard to link from bus-stops as points to nearby ways - > check out all the routing apps, not many need a hard node ID or way ID > to commence from / get to - they find a nearby way from a lat/long. If > Gosmore can do it, why not any other app? > > It just introduces a whole load of hassle working out which bus stop > goes in which direction, sticking it in the middle of the road. It > looks > stupid in the renderers for a very good reason. > > My 2p, but I don't want this to look like everyone thinks that way > nodes > are good.. > > Mark > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.6 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iD8DBQFIszNhJfMmcSPNh94RAkPOAJ9ALC4KpvGSUlTVxbVcNbW2jRuPFwCfcfAZ > DIsY6girm+HvwS6kYgf/8V8= > =dM1X > -----END PGP SIGNATURE----- > > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
