DURHAM (WTVD) -- NCDOT and North Carolina State researchers are studying the effectiveness of the "zipper merge." The rather unique sign was installed 2 weeks ago where NC 147 meets southbound I-85.

COLORADO, USA — Zipper merging needs better signage so badly that the Federal Highway Administration commissioned a study to determine if specific signage would get more drivers to zipper merge and ...

Have you seen the road sign “Right lane closed ahead, merge left,” but while you move to the left lane, other cars fly by you in the right lane? Then they duck into the left lane ahead of the cars in ...

With construction underway on Michigan roads, it's a certainty you'll need to merge down to one lane at some point: State officials are urging drivers to "zipper" merge, a method to navigate congested ...

DENVER — Colorado drivers seem near universal in wanting the “zipper” to be an official logo of construction zones. Zipper merging is the concept of driving in a closing lane to the end before merging ...

Why are so many drivers slow to pick up and use the zipper merge? I have reported for years about the lack of general merging etiquette in the Pacific Northwest and how it contributes to our terrible ...

PERINTON, N.Y. – If you’ve ever been jammed up in traffic trying to merge, this report is for you. Experts say a method called the “zipper merge” helps traffic flow smoothly. Well, when it’s done ...

New signs on N.C. 147 encourage people to “merge like a zipper,” as they approach Interstate 85 South. The N.C. Department of Transportation is using the signs as an experiment in the hopes of ...

Construction season is here, and with it, comes back-ups. The Michigan Department of Transportation is reminding drivers how to get through the work zones quickly. It’s the ‘zipper merge.’ Many ...

The zipper merge can be an effective method to manage traffic in congested construction zones. The Michigan Department of Transportation rolls out road signs to notify drivers where it is in place.