Colorado's push to get drivers to zipper merge is moving beyond handbooks and into permanent road infrastructure. New signs ...

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 ...

Zipper merges encourage drivers to use both lanes and merge at a designated point, improving traffic flow and reducing ...

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 ...

While some drivers may see it as unfair, zipper merging is the quickest way through many of Milwaukee's road construction ...

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 ...

California transportation authorities do not explicitly promote the zipper merge, but studies find it can reduce congestion ...

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 ...

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 ...

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 ...