[OSM-talk] Relations not always brilliant

[Richard Fairhurst]

Alex S. wrote:

> In the US, there are many highways which carry more than one official
> "ref" number across long stretches.  For example, US-12 shares roadway
> with sections of I-5, I-82 and I-182 in Washington State, but both  
> signs
> are on the side of the roadway in these sections.

Sure, and in that case it makes sense to use a relation or to tag  
with semicolon-separated values, because that's something that can't  
be expressed with simple "key=single value".

cheers
Richard