[Talk-us] Interstate Highways Relations List

[Adam Schreiber]

On Mon, Apr 13, 2009 at 8:28 AM, Greg Troxel <gdt at ir.bbn.com> wrote:
> The US highways in California are really (I think) regular US highways,
> but CA uses a different kind of sign.  So tagging then us_us_ca seems
> again like tagging for the renderer.  This is sort of OK, perhaps, but
> it bothers me perhaps because it's doing so in a denormalized way.
> Database users that care if something is a US highway will then have to
> have a list of tags and check against that set.
>
> An alternative would be to have a shield hint tag, like
>
>  shield_flavor=us_ca
>
> added, leaving network=us_i.  Then users that don't care about sign
> variants jus see us highways, and renderers get their hints.  Or perhaps
> renderers know that a highway is in CA.  Or maybe the shield_flavor is
> needed because we're trying to match each road's actual signs, and they
> aren't consistent.  Or maybe it's shield_flavour.

What about:

addr:country=us
addr:state=ca
network=us

or

addr:country=us
addr:state=ca
network=i

These provide the same information in a standard way and there's no
debating about whether they tag for the renderer or not.

Cheers,

Adam