I'm guessing it's buried in the Manual on Uniform Traffic Control Devices (MUTCD).
There are quite a few rules that highway departments have to follow. About the only flexibility is the design on State and local route number signs (County Highway/State Highway) and street signs -- but not how the information is displayed (i.e. font size and proportions).
I'm sure it is the reason you don't SeE StReeT SiGNs LikE THIs... Sure, all uppercase seemed definitive and authoritative and the style of the time. I remember Chicago having all capital lettered street signs, but with the advent of GPS and me knowing where I'm going, I don't remember the last time I looked at one.
For those interested the latest MUTCD is online.... http://mutcd.fhwa.dot.gov/pdfs/2009/pdf_index.htm
Enjoy.
Not sure what you're implying, but bacon salt (as well as their other line of products) are fully kosher without a hint of pork.... and looks like less sodium than salt per serving. The salts also have no fat.
Research! Oh wait, I forgot this is Slashdot. We don't do that sort of thing.
I've always found it a bit hypocritical to not allow more bars/pubs/dispensaries in local neighborhoods (at least in the US) because of all the NIMBYs, which makes greater chances that people go out, drink, and drive back home even slightly over the limit.
That, and if you read the arrests for people who actually cause heinous harm, they are far over the "legal limit" for it to matter anyway. I don't think the limit has been 0.16 in over 40 years, but that seems to be the magic number for accidents I've seen ("twice the legal limit").
I'd love to walk to a bar every once in a while, have a couple drinks, and walk home, but the nearest place is 2 miles away and the route is quite literally peppered with cops on the weekends, and it's getting difficult finding a different route these days.
-m
Top Ten Things Overheard At The ANSI C Draft Committee Meetings: (5) All right, who's the wiseguy who stuck this trigraph stuff in here?