Pretty sure it's Helvetica.
If you have photoshop or some program like that, use Bell Gothic Std and increase the vertical scale to %130.
The "S" in Bell Gothic Std doesn't look the same as the stop signs in St. Louis (and there are thousands of them). So far the closest font I've found is ITC Avant Garde Gothic (Medium Condensed).
Found it! Roadgeek 2005 Series C is a perfect match. Get it here: http://www.triskele.com/index.html These are freeware fonts, created by Mike Adams and based on all of FHWA Series B through F, plus additional fonts based on highway signage around the world.
Most municipal/government organizations use Helvetica for public signs. It is also the most widely used font in advertising.
For interpretive displays and publications, the sans-serif title font is Frutiger and the text font is called NPS Rawlinson.
I believe the "... the good life" part is Bauhaus. I'm still trying to figure out the "NEBRASKA" font.
Stop signs.
Stop signs
The font used for signs in Bioshock Infinite is called "Nashville." It is a clear, vintage-style typeface that fits well with the game's early 20th-century setting in the floating city of Columbia.
Stop signs and Warning/Guiding signs. You must make a complete stop at a stop sign BEFORE the solid white line.
Stop signs
Stop signs are attached to either wood or metal poles. Stop signs may also be attached to a school bus to be used when students are loading or unloading.
There isn't a specific height for a stop sign, I've seen short stop signs, tall stop signs, etc. Taller stop signs would probably be in areas where there's high traffic so everyone can see them, the shorter stop signs are used in parking lots.
stop signs, 50cent
The font that is used in the NCAA logo is called Aquarius No. 8. This font is one that has to be purchased, and does not come pre-installed as a font. This font closely resembles that font that is used on the Twitter website.