zipper merging

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from my understanding zipper merging is when both lanes are moving at the same speed and one lane ends. at the point where the merge happens its every other car that gets to proceed from each lane.

What actually counts as a "zipper merge"? Life_Temperature795 2025
Zipper merging, however, benefits individual drivers as well as the public at large. Research shows that these dangers decrease when motorists use both lanes until reaching the defined merge area and then alternate in "zipper" fashion into the open lane.

Zipper Merge - MnDOT 2025