Smallest Control Cities

[JayhawkCO]

That's not a diacritic. Å and A are entirely different letters in Norwegian (in much the same way that Ñ is a letter and not N with an accent in Spanish).

Pronounced effectively "Oh" and "Ah" respectively.

[kphoger]

That's not a diacritic. Å and A are entirely different letters in Norwegian (in much the same way that Ñ is a letter and not N with an accent in Spanish).

1.  That's a distinction that doesn't really persuade me.  I'd say that the letters Å and Ñ are formed by adding a diacritic to a glyph.  Even if they're separate letters, the little doodad is still a diacritic.  In my book, at least.

2.  If anything, you just proved my point even further.

[jlam]

Trying to think of other four letter control cities -- Erie, Elko, Reno. Sure I'm missing a few.

Utah

[JayhawkCO]

Trying to think of other four letter control cities -- Erie, Elko, Reno. Sure I'm missing a few.

Utah

As I despise control states, I will forget you said that. Iowa would apply too.

[ran4sh]

Do control cities need to be the same for exits of both directions of the road you are already on?

No, I don't think I've ever seen that restriction in the MUTCD, and the current MUTCD even includes a figure showing an example of the same exit having different destinations in each direction.