There are speed limit signs of all shapes and sizes out there, but only some have flashing yellow lights. At first glance, that may sound counterintuitive, given that any flashing could distract the ...
An example of what variable speed limit signs look like above a highway in Washington. Courtesy of the Washington State Department of Transportation When icy conditions led to a 133-car pileup on ...
A speed limit sign with a flashing yellow light due to a school zone - Mike Kuhlman/Shutterstock There are speed limit signs of all shapes and sizes out there, but only some have flashing yellow ...
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