[Tagging] Using relations to group highways

[Matthias Julius]

"Mike N." <niceman at att.net> writes:

>> As for the shields this is deviating from the topic at hand but for it
>> the shield can be derived from the lookup table on the wiki and then
>> extra preprossesing in osm2pgsql to assign a shield based on admin
>> polygons + info from the lookup table
>
>   What is the advantage in separating the shields from their associated 
> features in the DB?

The mapper does not need to worry about them if the renderers just do
the right thing.  The shields are not really a property of the
highway.

Matthias