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Continue to ChatFriday fun post: 1950 Buzzer showcases the heart of the traffic light system https://buzzer.translink.ca/2010/06/friday-fun-post-1950-buzzer-showcases-the-heart-of-the-traffic-light-system/
Friday fun post: 1950 Buzzer showcases the heart of the traffic light system https://buzzer.translink.ca/2010/06/friday-fun-post-1950-buzzer-showcases-the-heart-of-the-traffic-light-system/