[Talk-us] Interstate Highways Relations List

[Alex Mauer]

Chris Lawrence wrote:
> I'd suggest that "CTH" is a little too specific to Wisconsin (where
> they are called County Trunk Highways, hence CTH); county highways are
> typically marked as "County Road x" in most states, so CR x would be
> more appropriate in most states.

It honestly doesn't matter to me what the specific code indicating a
county highway is.  Wisconsin also uses "County Road" pretty extensively.

That said, there's an advantage to using three letters: lack of conflict
with the ISO country codes used on national road systems (CR is Costa Rica)

-Alex Mauer "hawke"

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