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.

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 ...

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 ...

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 ...

A few simple tips can save you time and reduce frustration in heavy traffic and construction zones, whether during your daily commute or a summer vacation drive across Michigan. Here's a big one: Use ...

DENVER — AAA estimates that more than 60 million people will travel by car this week. That means 60 million people have the opportunity to zipper merge. In the state of Maine, the signs are more ...

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.

If you ever needed to embrace the zipper merge, now is the time when driving Fort Collins' busiest road into the city from Interstate 25. Unless you prefer to wait even longer in traffic on Harmony ...