[Tagging] Fwd: Door to door routing to buildings with multiple occupants

Pieren pieren3 at gmail.com
Tue Dec 4 10:16:46 GMT 2012


On Tue, Dec 4, 2012 at 5:49 AM, Friedrich Volkmann <bsd at volki.at> wrote:

> The only use of separate address nodes by now is that they make Mapnik
> display a house number. But speaking of Mapnik... if there are 5 POIs in a
> house, and Mapnik has no signature for those POIs, it displays the house
> number for each POI instead, resulting in 5x the same number. That makes
> addresses on nodes problematic for Mapnik too.

One principle I like in OSM is "one feature, one OSM element":
http://wiki.openstreetmap.org/wiki/One_feature,_one_OSM_element

A single address should be tagged only once. If you have several POI's
with the same address, tag the address on its own node. The node does
not have to be be "floating" but can be attached on the building way,
either on the building entrance or where post boxes are physically (or
vitually). Then it is to the software consumers to find the nearest
node address when they search information about a specific POI.

Pieren



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