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p
Lv 4
p asked in Cars & TransportationOther - Cars & Transportation · 1 decade ago

why can't traffic lights colors be other than amber, red or green?

7 Answers

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  • ericscribener
    Lv 7
    1 decade ago
    Favorite Answer

    The very first traffic signal lights were gas-powered and only had red and green, taken from railroad lighting. Once electric traffic signal light systems were engaged, the obvious problems and wrecks occurred and the yellow was quickly added.

    Source(s): http://signalsorcerer.com/
  • Fred C
    Lv 7
    1 decade ago

    What colours would you like? Fuschia? Burgundy? Navy Blue? This isn't a fashion show, this is a signal that has to be understood by drivers from anywhere. It has to be the same colours in all cities and countries or people will die.

  • Not a hippie
    1 decade ago

    Because their a universal signal, if you screw with that stupid people will crash their cars into you, never underestimate the power of a stupid person.

  • harley w
    Lv 4
    1 decade ago

    because that's just the way it is if they changed it people wouldn't know what to do

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  • zoomat4580
    Lv 4
    1 decade ago

    It's a worldwide system, you can't mess with it.

  • Cashew
    1 decade ago

    ummmm cause if they were other colors people would be confused

  • Carmen M
    1 decade ago

    the most simplest colours!! =]

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