[Tagging] Ref tag

[Martin Koppenhoefer]

2012/6/19 Ronnie Soak <chaoschaos0909 at googlemail.com>:
> What about ref:DE= or ref:UK= for the national and just ref= for the
> international ID?


This looks like an alternative, but it is not how it is actually done:

there are
145428 int_ref
60611 nat_ref
12 ref:de
0 ref:DE


also from a practical point of view (e.g. rendering) it would
complicate things a lot if all national refs had different keys (due
to country codes). Keep in mind that most roads don't have an
international ref.

cheers,
Martin