Below you will find the solution for: In 1920 Detroit police officer William Potts had the idea to add this signal to make simple stop/go traffic lights safer Jeopardy .
Since you already solved the question In 1920 Detroit police officer William Potts had the idea to add this signal to make simple stop/go traffic lights safer which had the answer A YELLOW LIGHT, you can simply go back at the main post to check the other answers. You can do so by clicking the link here Jeopardy February 15 2023
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