Summer is prime time for construction in Washington state. With hundreds of construction projects scheduled across the state this summer, routes are altered on many cross-state trips. These projects ...

Why is the zipper merge method crucial for reducing traffic congestion? Explore how it can cut backups by half and improve ...

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 ...