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.

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 ...

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 ...

The zipper merge: a technique meant to help traffic flow seamlessly when the road is reduced to a single lane, yet in ...

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 ...

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 ...

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 ...

DENVER — Colorado's push to get drivers to zipper merge is moving beyond handbooks and into permanent road infrastructure. New signs and road paint are being installed on state highways and Denver ...

Q: Could you explain the zipper merge for merging into construction zones in Minnesota? Is it law or just a rule of thumb? The Minnesota Department of Transportation website explains some of this, but ...

My April column on the state's campaign to get drivers to use the zipper merge technique at road construction sites generated quite a bit of buzz. Since then it's been a hot topic on Twin Cities talk ...

Add Yahoo as a preferred source to see more of our stories on Google. 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 ...