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.

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.

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 streets that ...

If you’ve driven a vehicle in Michigan during construction season, chances are you’ve experienced the frustrating traffic bottleneck associated with lane closures. Some drivers choose to exit the ...

South Carolinians are no strangers to traffic. Most — if not all — drivers who brave the state’s interstate system have shared in the experience of sitting in a dead stop on the road, looking at the ...

Experts love the zipper merge, but drivers are just as likely to see it as others rudely cutting their turn in line. By Paul Stenquist See more of our coverage in your search results.Encuentra más de ...

While some drivers may see it as unfair, zipper merging is the most efficient way through many of Milwaukee's road construction chokepoints, state transportation officials say. The Wisconsin ...

Add Yahoo as a preferred source to see more of our stories on Google. Colorado's push to get drivers to zipper merge is moving beyond handbooks and into permanent road infrastructure. New signs and ...