How's this for a story...it was Tulsa police officer Clinton Riggs that invented the yield sign in 1950. The first one (on the whole planet!) was installed at 1st Street and Columbia Avenue. History would never be the same....
But what's this have to do with roundabouts, you might ask? The basic principal of roundabout operation is yield control on entry...that's what makes a roundabout possible.
And here's a scoop for you: The shape of the Tulsa Police shoulder badge is based on the first yield sign. Take a look:
But what's this have to do with roundabouts, you might ask? The basic principal of roundabout operation is yield control on entry...that's what makes a roundabout possible.
And here's a scoop for you: The shape of the Tulsa Police shoulder badge is based on the first yield sign. Take a look:
Thank You Officer Riggs..you are the true grandfather of the modern roundabout!
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