Wisconsin DOT Encourages “Zipper Merge” During Construction Season

The Wisconsin Department of Transportation wants to alleviate traffic congestion near road construction. A video on the agency’s Facebook page demonstrates a traffic maneuver known as the “zipper merge”.   The video shows when coming to a merge point due to a closed lane of traffic, drivers taking alternating turns to merge into a single file line of traffic. The post explains that when the zipper merge is used properly, it can shorten lines and reduce backups.