Originally Posted by
RichardKenner
I have sympathy for the "3-1-1" signage and don't think it should be changed. It's concise and easy to understand and remember for the kind of traveler that it's aimed at. "3.4-1-1" looks silly and is much harder to remember. It's an approximation and I don't see it as any more incorrect than saying "a meter is about three feet".
Here's a simple solution. The real limit is 100ml, right? So, change the signage to "100-1-1". Bingo, problem solved. "100-1-1" is just as neat and clean as "3-1-1" is, and furthermore, it's still accurate.
(Okay, let's skip the obligatory "but nobody understands metric" tangent. People will learn it if you make them learn it. Every time I go to the grocery store and have to buy my bottles of soda in containers that are approximately 67.6 ounces large, I manage just fine ... and so does everyone else.)