Zipper merging reduces backups by up to 50% during lane closures statewide. The method uses both lanes fully and merges vehicles alternately at lane ends. WSDOT urges drivers to plan, maintain speed ...

Those cars that zoom right up to the orange barrels before merging when a lane is closed? ODOT says they're doing it right.

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 ...

Nowhere in the law will you find a requirement to reach the posted speed limit before entering a freeway.

GRAND RAPIDS, Mich. — If you've been stuck in traffic during construction, you may have noticed cars speeding by in the lane about to end. It may feel unfair, but that move — using both lanes until ...

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 ...

Nearly everyone has an opinion on zipper merging etiquette and when to switch lanes. However, many drivers like to change lanes early and then get annoyed with those who don’t switch until the last ...

Picture it: You're driving on the interstate when traffic slows because a lane is closed ahead. You merge over right away and patiently wait, and watch (perhaps with increasing annoyance) while a ...