We also have to come up with a way to designate hidden segments of a route so
we don't have to have two separate relations for highways that have segments
that are hidden.
Some of the examples I'm thinking of are like US-52 in MN when it's on I-94 and
US-19 Trunk here in Pittsburgh, PA while it's on I-279/I-376. Both states have
signs for theses routes telling people to follow said Interstates for those
routes and then no more reference to them till when they leave the Interstates.
I'm thinking that we could possibly tag the roles for them in the relations
this way: role=north|unsigned. This would also help for the renders that use
the relations to add the shields. They would be able to use the "|unsigned"
part to know not to add the shields along that way.
As for the highways that are completely hidden, the "unsigned_ref" tag in the
relation will work perfectly for them still (US-85 in NM as an example).
Anybody else agree with me that this might work better than the two relations
for the highways that have segments that are hidden?
-James
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