The Concept of Zipper Merging. To understand zipper merging, it’s important to recognize that it’s a method of merging where vehicles from two lanes alternate in a sequential order, much like ...

A zipper merge takes place when a lane is closed for construction and drivers continue to use both lanes of traffic until the merge area, when drivers alternate, taking turns merging into a single ...

See a "lane closed ahead" sign coming up? Your instinct might be to immediately and politely switch over to the open lane. You might look over in annoyance at the car zooming past in the soon-to ...

The zipper merge is only appropriate in either slow or stop-and-go conditions. If you are going the speed limit, you should merge as normal. Where there are long gaps between cars, ...

A zipper merge is the quickest, most efficient way to move traffic in a construction zone. A 2013 study conducted in Minnesota found that it can reduce traffic backup lengths by up to 40%.

In theory, the zipper merge is the best way for traffic to move through an area with a lane closure, but studies have found it doesn’t work well in all situations.

In an ideal world, everyone would zipper merge, Oregon Department of Transportation said. Drivers stay in their lanes and wait until the merging point, then take turns one by one, like the teeth ...

And they say this more controlled merging method at slower speeds leads to fewer crashes. The more people adopt it, the more that "cutting in line" effect is diminished. Here are tips for zipper ...

Zipper merging is the concept of driving in a closing lane to the end before merging with the next traffic lane. One car from the ending lane, one car from the existing lane. Back and forth.

Here's a big one: Use the "zipper merge" method, even if it upsets other drivers. The quickest, most efficient way to merge for a construction zone probably isn’t what you think it is.

An issue that makes zipper merging less effective is road rage and drivers who purposely block vehicles from moving into the open lane. Perrine said that with more construction, state troopers ...

A zipper merge takes place when a lane is closed for construction and drivers continue to use both lanes of traffic until the merge area, when drivers alternate, taking turns merging into a single ...