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  1. #1
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    OT: Flashing your brights at intersections

    My friend told me the other day that he rarely has to wait at intersections because he just rapidly flashes his brights and the intersection will change to green. He claims that that is how ambulances direct the lights in the way that they do. He says that only certain intersections with the "sensors" are the ones that work.

    Anyways, I decided to give it a try the other night. I was coming up to the intersection when it changes to yellow about 20 yards from the intersection. There is another car on the left side of the intersection and nobody across so I just start flickering the lights. It all of a sudden changes back to green. I am now convinced that the rumor is true.

    My common sense tells me this is an illegal action; any cops out there can give me some insight?



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    Re: OT: Flashing your brights at intersections

    Nope, not true and quiet illegal. You have to have your lights flashing at just the right frequency that is much faster than you can flip them on and off.

    Better not let the federalies see ya, they will bust you quick for doing that.


    They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety. - Benjamin Franklin 1775

  3. #3
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    Re: OT: Flashing your brights at intersections

    Quote Originally Posted by brianhos View Post
    Nope, not true and quiet illegal. You have to have your lights flashing at just the right frequency that is much faster than you can flip them on and off.

    Better not let the federalies see ya, they will bust you quick for doing that.
    In that case this was a hypothetical question.



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    Re: OT: Flashing your brights at intersections

    Lights can be controlled via radio signal or strobe lights. In any case, you can't flash your car lights fast enough to change the light.



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    Re: OT: Flashing your brights at intersections

    I will reaffirm what others have said, this is a rather popular urban legend. Those signals are set to read a certain frequency of light. There are two types of signals that do this: one that gives a green only to the emergency vehicle and another that gives all red (so the emergency vehicle knows to run the red light). So, tell your friend he's full of it


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    Re: OT: Flashing your brights at intersections

    Quote Originally Posted by throwittoblythe View Post
    I will reaffirm what others have said, this is a rather popular urban legend. Those signals are set to read a certain frequency of light. There are two types of signals that do this: one that gives a green only to the emergency vehicle and another that gives all red (so the emergency vehicle knows to run the red light). So, tell your friend he's full of it
    Probably a hawk fan...


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    Re: OT: Flashing your brights at intersections

    Some are siren activated also.



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    Re: OT: Flashing your brights at intersections

    Quote Originally Posted by FirNaTine View Post
    Some are siren activated also.
    Rite u are ken, We just got a siren activated one in Denison



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    Re: OT: Flashing your brights at intersections

    Most traffic lights are controlled by sensors planted in the pavement that your vehicle runs over on its way toward the intersection. When traffic is at peak times, in most cases lights are set on timers, but when traffic volumes are low, they will use the embedded sensors. The sensors are planted far enough away from the intersection that they signal the lights to change to green for you before you slow down too much.



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    Re: OT: Flashing your brights at intersections

    My buddy from Cali told me this when he came to ISU; he would always flash his lights at the stoplight. Sometimes it worked to perfection; the other times, I just laughed at him.



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    Re: OT: Flashing your brights at intersections

    I've heard this one also. What are the cops going to do to you for trying? You could just tell them you are Tom Cruise and are trying to signal the mother ship



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    Re: OT: Flashing your brights at intersections

    Quote Originally Posted by ISUAlum2002 View Post
    The sensors are planted far enough away from the intersection that they signal the lights to change to green for you before you slow down too much.
    Unless you are in Ames, the most times the lights are just in a world of their own. I've known the light at Lincoln Way & University to give the opposite direction the green light and I'll be the only one at the intersection, that light really irritates me. And the one coming out of the mall really gets me, it can take up to two minutes to get out of there.



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    Re: OT: Flashing your brights at intersections

    Quote Originally Posted by price26 View Post
    Unless you are in Ames, the most times the lights are just in a world of their own. I've known the light at Lincoln Way & University to give the opposite direction the green light and I'll be the only one at the intersection, that light really irritates me. And the one coming out of the mall really gets me, it can take up to two minutes to get out of there.
    Try taking the Grimes exit off of I35 north, and then try to turn left. If you are by yourself, you could grow old and die waiting for it. I damn near ran it once after about 5 minutes of waiting.



  14. #14
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    Re: OT: Flashing your brights at intersections

    State Street & Lincoln Way...worst intersection in Ames. If you're on State, you'll sit for at least 2 minutes if it's during the day. After midnight it switches to equal prompting, but man I hate going that way if it's during the day at all.


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    Re: OT: Flashing your brights at intersections


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