TransportationGov

@USDOT ↗

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Last Checked April 15, 2022

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Tue Feb 01 18:58:33 +0000 2022

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TransportationGov @USDOT

#DYK? Garrett Morgan invented the three-position traffic signal, also known as the stoplight. After witnessing a bad crash, Garrett designed an automated signal with a warning position, which is today’s yellow light. 🚦 #BlackHistoryMonth https://t.co/ZnxKIDdbWz — PolitiTweet.org

Posted Feb. 1, 2022

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TransportationGov @USDOT

RT @FTA_DOT: During Black History Month, we applaud the successes of Black Americans and thank those who have contributed to keeping Americ… — PolitiTweet.org

Posted Feb. 1, 2022 Retweet

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TransportationGov @USDOT

Garrett’s invention was the first to have the middle warning position that gave drivers enough time to clear the intersection before crossing traffic entered, preventing unnecessary crashes. #BlackHistoryMonth — PolitiTweet.org

Posted Feb. 1, 2022