Something Else to Ponder

Today as I was driving to the knitting group, I got to noticing the various road signs. Some were diamond shaped and instructed drivers to yield, or that there was survey work taking place up ahead, or that the lane was splitting. Of course, we’re all familiar with the octagon STOP sign. Signs identifying a particular numbered highway seem to be either square (country or state road) or shield shaped (U.S. highway). Some signs which are diagonal stripes are long rectangles.

So I got to wondering who decided which shape a particular sign should be. Was this done on a state-by-state basis or since there is consistency from state to state was some national group given the task?

Highway signs are just another thing we take for granted. We know what they mean but we really don’t give a thought to how they got that meaning.

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