National Boards > General Highway Talk

Have We Hit The Golden Anniversary Of Diagrammatical Signs Yet?

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frankenroad:
I took Drivers Ed in 1972.  I remember our teacher being very excited about the new signage.

Wasn't that around the same time that the center dashed line on a two-way roadway went from white to yellow?

cwf1701:

--- Quote from: frankenroad on February 22, 2023, 04:19:42 PM ---I took Drivers Ed in 1972.  I remember our teacher being very excited about the new signage.

Wasn't that around the same time that the center dashed line on a two-way roadway went from white to yellow?

--- End quote ---

i would think so. I have a map from 1973 showing the transition to the signs in Michigan, which included the new look for state and US Highways (changing from cutouts to the black square). A short time after that map was published, i would see some of those new state shields posted on Gratiot Ave in Metro Detroit (the removal of the black signs for the Michigan Lefts that was for US-25 and replaced with Green Michigan Left signs for M-3)

kphoger:
How has Jonathan not popped on here to tell us the exact date?

CtrlAltDel:

--- Quote from: kphoger on February 23, 2023, 09:37:53 AM ---How has Jonathan not popped on here to tell us the exact date?

--- End quote ---

I'm not Jonathan, of course, but the date mentioned in the 1971 MUTCD is the following:


Also, 1970 was fifty years ago? My sense of time is a bit warped.

CtrlAltDel:
Also, on an almost completely unrelated note, I was perusing the 1971 MUTCD and came across this description of flagger qualifications, which I found interesting:

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