The international speed limit sign is round and not rectangular like those
shown in the USDOT web site.
We have in the US those who want to reinvent the wheel or make a mark for
themselves. That's what the USDOT is trying to do rather than become part of
the international community. As Tom Freidman has said: "The World is Flat."
We must join it, and that includes teaching and using the SI exclusively, or we
will be buried in our own stew.
Stan Doore
----- Original Message -----
From: Stephen Gallagher
To: U.S. Metric Association
Sent: Monday, February 19, 2007 7:55 AM
Subject: [USMA:38012] Re: mm vs. cm
I agree Mike that there should NOT be both English and metric road signs
as it would be very unsafe. Pasting over current signs with metric is a good
way to begin; however, the US should adopt the international sign/symbol for
speeds and speed limits. The sign is round with a number in the middle. The
would save on expensive aluminum material. The "km" could be placed in small
letters at the bottom of the circle beneath the number to help avoid confusion.
With examples of the US standard for metric speed limit signs being shown here
http://mutcd.fhwa.dot.gov/HTM/2003r1/part2/fig2b-01_longdesc.htm
wasn't the original plan to use a red circle, rather than a black one, but it
was
changed (to a green circle at one point, no)? The red circle would have made
the
sign look a lot more like the internationally used speed limit sign.
