However, a given administrative area may well contain country-level, 
state-level, and county roads.  If a given road is tagged with only a number, 
what indicates which one of these is meant?  Also, it is not unusual for a 
stretch of physical roadway to be considered part of both a country-level road 
and a state-level road, etc.

-- 
John F. Eldredge -- [email protected]
"Reserve your right to think, for even to think wrongly is better than not to 
think at all." -- Hypatia of Alexandria

-----Original Message-----
From: John Smith <[email protected]>
Date: Mon, 1 Mar 2010 03:30:46 
To: Mike N<[email protected]>
Cc: <[email protected]>
Subject: Re: [OSM-talk] Help! Changeset reverted without explanation

On 1 March 2010 03:17, Mike N <[email protected]> wrote:
>   Is there a good argument to omitting the state abbreviation from the
> ref?   Will the end result of changing to just a number be usable by the
> "Highway Shields" project?   The common reference "County road 49" comes to

You can use admin boundaries to derive country, state, and county information.

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