-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Andy Robinson wrote: > On 26/03/2008, Mark Williams <[EMAIL PROTECTED]> wrote: >> Lars Aronsson wrote: >> [some serious stuff] >> >> >> > Also, returning to cycle lanes, the "secondary" road >> > Malmslättsvägen is now marked with cycleway=lane, but this doesn't >> > show on the map here. And how can I indicate that this bus stop >> > is only on the southern side of the street (buses going east)? >> > Buses going in the other direction stop at another place. >> > >> >> Put the bus stop off the road, on the pavement. It doesn't have to be a >> highway node as such. > > Its perhaps not ideal to place the bus_stop off to the side of the > highway since the stop is part of the highway. Off to the side means > that it is more difficult to include the feature in routing and when > marking up routes on a bespoke map. However the problem of which side > of the street is real and when I started adding bus_stop's in > Birmingham I wondered too how I would do it. In the end I took the > lead from the bus stop signage itself. Here they not only have their > location (normally the name of the road they are on plus the name of a > nearby cross street or major land feature) but also "towards" > information. So I've been tagging nodes (as part of the highway) for > each stop with something like this: > > highway=bus_stop > location=Birmingham Road, Driffold > towards=Sutton Coldfield > route_ref=104|104A|905|905X > shelter=true > ref=053201 > > I believe the "towards" should work because the place names would be > expected to be in the database (once the map is complete) > > Cheers > > Andy
I've avoided bus stuff round my part of the country as I don't use them nor really know how best to tackle this issue - maybe later... IMHO this ought to be covered better by relations - at present, bus routes are being written to overlie other ways (load IOW into josm & run Validator to see an example), which is OK but adds yet more data, with duplication. The stops have been tagged off to one side - not by me - which looks pretty clear, and could easily be grouped into the No 63 bus relation. This ought to suit routing fine well. The current system doesn't look right to me. In your scheme you can't tell which side it is without some pretty specialist routines to calculate your 'towards' tag. How does your hypothetical routing know the bus doesn't turn right at Driffold & take the scenic route to Sutton Coldfield via Clifton Road & the park? (OK, the lack of bus stops, but you can't rely on that as a principle). I think bus stops are actually a pavement feature, for pedestrians, and live offset from the way. Your location tag says which road it belongs to, my offset says which way it goes & which side it's on. I don't see anyone suggesting post-box is a highway feature so postmen can plan routes round them :) Neither bus companies nor the mail use a live algorithm to route themselves, so I doubt the utility of all this. Perhaps I'll work out one of my local routes & try it my way & see how/if it works. Mark -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Mandriva - http://enigmail.mozdev.org iD8DBQFH6olJJfMmcSPNh94RAt4mAJ45Lzzho9ZcRR77XkYonrDWIToWGgCgg2tA H0i1KoYvpRMHQzgFxdK7CoQ= =u6kA -----END PGP SIGNATURE----- _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
