[OSM-talk] Karlruhe Scheme addressing ways from 2009 TIGER data

[andrzej zaborowski]

2009/11/15 Anthony <osm at inbox.org>:
> On Sat, Nov 14, 2009 at 9:05 PM, andrzej zaborowski <balrogg at gmail.com> wrote:
>> I agree with
>> Anthony that these tags are useless *except* this one tag, the Id *is*
>> useful, please don't remove it.
>
> What's useful about it?  Or to ask the question a different way, what
> is the tag supposed to mean?

It means that this way's Id in that other dataset there is XYZ.
Hopefully we will soon have a better dataset and more
keeping-up-to-date-power than that dataset and it will be up to them
to keep up with us, for now they have more current data and if we ever
want to bulk update our data we will need this info.

Also, maybe I'm too excited about this idea called Linked Data ([1]),
but even even if we don't want to update, I think it's a piece of info
that isn't found anywhere else and would be cool to keep.

>
> When you merge two TIGER ways which id do you keep?  Or should you
> keep them both (separated by a semicolon)?

The one from which you take the name or whatever logically preserves
the "identity".  (Possibly none)

Cheers

1. http://en.wikipedia.org/wiki/Linked_Data