Inventor Of ‘Yield’ Sign Dies At 86
Clinton E. Riggs, a police officer credited with creating the “Yield” traffic sign, has died at age 86.
The first sign, reading “Yield Right-Of-Way,” was installed at a Tulsa intersection in 1950. An early version of the sign is on display at the Smithsonian Institution.
Riggs, who died Thursday, also was a state trooper with the Oklahoma Highway Patrol, where he apparently thought of creating a sign that would control traffic at an intersection as well as assign liability in a collision.
He developed the sign while attending Northwestern Traffic Institute in 1939.
One of the first keystone-shaped, yellow and black signs reduced the ranking of Tulsa’s most dangerous intersection to the seventh most dangerous in one year. Requests soon came in from around the nation.
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