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 ...

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 ...

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 ...

There are permanent zipper merge opportunities on state highways and city streets. “If you had some kind of signage that was very explicit, so that you said something like, ‘zipper merge, use both ...

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 ...

From everyday questions to more complex problems, we’re asking the experts to lend us a hand. Throughout the series "Professional Help," we’ll hear some direct advice, for us not-so-direct Minnesotans ...

The Enquirer's Just Askin' series aims to answer the questions that no one seems to have an answer for, not even Google. It's every driver's pet peeve. Bright orange barrels and signs emerge into view ...

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 ...