On Wed, Jan 13, 2010 at 11:27 AM, John Smith <[email protected]> wrote: > > If we're mapping what's on the ground most POIs won't physically be > connected to the road way, servos are an obvious exception. > > If there is a problem with other POIs, where is the problem? > > * OSM's data > * the pre-processor > * the device/software that does routing
Good question. I'm not sure. OSM's data should at least include 1) service roads (to decrease the distance between the POI and the nearest road, which should decrease ambiguity), and 2) entrances (to resolve ambiguity in the case of more than one very close roads). On a related issue.... re: 2), in the case of multiple businesses sharing a building (e.g. a typical AU shopping centre with entrances on the outside of the building), is it advisable to place a POI node *on* the building outline, rather than floating in the middle of the building? This seems sensible to me, as this is equivalent to tagging the location of the sign with the shop's name and/or the location of the entrance to the shop. Another advantage is that if the building is connected to the road grid, or a footway, etc., this may make it easier to route directly to the POI. _______________________________________________ Talk-au mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-au
