[Imports] [Talk-ca] [Talk-us] TIGER considered harmful - existing relation-types

[marcus.wolschon at googlemail.com]

On Sun, 15 Nov 2009 19:16:26 -0500, Anthony <osm at inbox.org> wrote:
> On Sun, Nov 15, 2009 at 7:04 PM, Dave Hansen <dave at sr71.net> wrote:
>> There's nothing wrong with doing point-level address imports.  The only
>> thing I would suggest is ensuring that we connect those points ways or
>> whatever to the roads that represent them somehow.
> 
> 1) Why?
> 
> 2) Are you planning on doing that with the TIGER address import?
> 
>> One way to do that is relations.
> 
> Relations could connect the points with "ways", but without a whole
> lot of work they're not going to be able to connect them with "roads",
> because a single road can consist of many different ways.  Until some
> sort of relation is invented to connect multiple ways to a single
> road, the best way to connect a point with a road is by using the name
> of that road.

That would be relations tagged
type=route
route=road
in other parts of the world.
(I'm using these heavily in the import of TMC location-codes for
 traffic-announcements.)

However the existing relations for connecting house-numbers connect them
to ways, not to roads.
http://wiki.openstreetmap.org/wiki/Proposed_features/House_numbers/Karlsruhe_Schema#Using_Relations_to_associate_house_and_street_.28optional.29

That is not the way where the access to a building is but the way the
number
belongs to.
http://wiki.openstreetmap.org/wiki/Proposed_features/House_numbers/Karlsruhe_Schema#Giving_hints_about_the_road-access_.28optional.29

Marcus