But when traffic is building up to the point of congestion, it’s time to zipper merge. Drivers in the closing lane should remain in that lane until it begins to taper and then (this part ...

Between the benefits of traffic flow and reduced waiting times, zipper merging is supported by research that highlights increased efficiency. Studies show that this method can decrease the ...

A modern zipper machine can make stringers at a rate of 2000 teeth per minute. Plastic zippers are common these days, too, and manufacturing methods vary by zipper style. One method has the fabric ...