Everyone knows that stop signs are red octagons -- but why? And why are traffic lights red, yellow and green? Join Scott and Ben as they explore the history of -- and psychology behind -- traffic signs.

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<p>Everyone knows that stop signs are red octagons -- but why? And why are traffic lights red, yellow and green? Join Scott and Ben as they explore the history of -- and psychology behind -- traffic signs.</p><p> </p> Learn more about your ad-choices at <a href="https://www.iheartpodcastnetwork.com">https://www.iheartpodcastnetwork.com</a>

Did Bonnie and Clyde really write to Henry Ford to thank him for his fast, reliable getaway cars? Do you ever wonder what happens at the DirtFish Rally School? What's a tether car? The CarStuff show has explored these and literally hundreds of other fascinating topics to explain how some of the most amazing machines on land, sea and air actually work. So whether you want to know more about hearses or circus trains, salt flat racers or the popemobile, Scott Benjamin has you covered.

CarStuff

Everyone knows that stop signs are red octagons -- but why? And why are traffic lights red, yellow and green? Join Scott and Ben as they explore the history of -- and psychology behind -- traffic signs.

Why are traffic signs that color?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/6f731822-695e-4e71-8dfc-ae32009c2a8d/transcript

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