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Old 08-08-2015, 07:36 AM   #16
MikeK
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Join Date: May 2010
Location: Windy City
Posts: 2,919
Default Re: Turn signal switch debate - which one

As to whether a cowl lamp is effective as a turn signal has nothing to do with how bright or visible it is when YOU are watching it. DOT regs do not permit signals mounted back from the vehicle face for a reason. It has to do with how the common driver's unconscious brain interprets visual signals. The average driver only responds to visual ques emanating from the front (or rear) of a vehicle. Flashing lights back from the front face may be bright as hexx but the split-second driving mode brain ignores the visual signal.

The same brain training holds true for glancing in the rear view mirrors. Driver brains are unconsciously trained in ignore visual images of anything not as wide or shaped like a car. Prudent motorcyclists are aware of this peril.
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