Trivia: Why Are Traffic Lights Red, Yellow And Green

Discussion in 'Gadgets & Tech Talk' started by Joe Riley, Sep 3, 2016.

  1. Joe Riley

    Joe Riley Supreme Member
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    In Pittsburgh, we had Vic Cianca;)
     
    #16
  2. Holly Saunders

    Holly Saunders Supreme Member
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    #17
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  3. Nancy Hart

    Nancy Hart Supreme Member
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  4. Hal Pollner

    Hal Pollner Veteran Member
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    Did you also serve the Navy, Frank?

    Hal
     
    #19
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  5. Frank Sanoica

    Frank Sanoica Supreme Member
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    @Hal Pollner
    I did not. Serve, that is. It was close. I received the Notice to Appear for Armed Forces Physical Exam not long after my 26th. birthday, but a murder-suicide occurred before the physical exam which placed me in custody of two children. They re-classified me to 3-A, I think it was, no military service due to dependent children. I've often wondered if my father in law saved my life by taking his own. Viet Nam was then raging.
    Frank
     
    #20
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  6. Joe Riley

    Joe Riley Supreme Member
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  7. Nancy Hart

    Nancy Hart Supreme Member
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    Traffic Light Tree - London

     
    #22
  8. Beatrice Taylor

    Beatrice Taylor Veteran Member
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    In Detroit, the early traffic lights were manually operated, similar to the one below.

    I read a story years ago that when the traffic cops saw the founder of General Motors, William C. Durant, personal automobile coming down the street they automatically flipped the light to green so his car never had to stop at a light. I don't know if the story is true or not but I tend to believe it.

    [​IMG]
     
    #23
  9. Joe Riley

    Joe Riley Supreme Member
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    STOP.... in the name of Love!
    [​IMG]

     
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  10. Nancy Hart

    Nancy Hart Supreme Member
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    Trivia: The first electric traffic light system in the U.S. was installed in Cleveland, Ohio, on August 5, 1914, had separate red and green lights, and was operated by a person in a booth nearby.

    [​IMG]

    Source
     
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    Last edited: Jul 29, 2018
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  11. Beatrice Taylor

    Beatrice Taylor Veteran Member
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    #26
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  12. Joe Riley

    Joe Riley Supreme Member
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    Braille Stop Sign for Blind People



    [​IMG]
     
    #27
  13. Nancy Hart

    Nancy Hart Supreme Member
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  14. Nancy Hart

    Nancy Hart Supreme Member
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  15. Joe Riley

    Joe Riley Supreme Member
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    The Venn Traffic light
    [​IMG]
     
    #30

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