[Talk-us] Tiger US address importing

[Apollinaris Schoell]

definitely something which should be continued. but it's not trivial.
some considerations

- 2009 update for tiger date should come soon. and hopefully it has less
errors. makes sense to wait for it
- in areas where data hasn't been touched it's also very likely the areas
which are of bad tiger data. adding more broken data doesn't help osm at
all.
- areas which haven't been touched are most likely areas no one is
interested in. why clutter the database with more broken data.
- how do you check that tiger data was not changed? You can't take the
version of a way and assume there was no change in geometry there is an
ongoing discussion about deep history and this is a non trivial problem.
since all tiger nodes are cleaned of their obsolete tags any tiger node will
be pushed to version 2 or more. You can not rely on version number. you must
verify the position itself against an old history dump.
- more and more counties make their data available for the public. I hope
such data is authoritative and much more useful. wherever possible this
should be used instead.

On Thu, Sep 17, 2009 at 10:52 AM, Jim Brown <jim at cloudmade.com> wrote:

>  Theodore,
>
>
>
> I’ve been looking at the work you did in Atlanta with addressing based on
> Tiger 2008 and I think it looks really interesting.  Nice work.
>
>
>
> I’d like to see if we can help you with this, if you want to continue with
> it, either by collaboration or whatever else makes sense.
>
>
>
> Our thinking at the moment is that it makes a lot of sense to take the
> tiger addressing information in for places where the tiger data has not been
> edited yet – so the road geometery matches.  This looks like about 90% of
> the road network at present.
>
>
>
> What do you think about this?
>
>
>
> Best Regards,
>
>
>
> Jim
>
>
>
> Jim Brown - CTO CloudMade
>
> mobile: +44 (0)7595 367 664
>
> email:   jim at cloudmade.com
>
> skype:  jamesbrown_uk
>
>
>
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