A zipper merge occurs when drivers use both lanes of traffic until reaching a merging point, where motorists then take turns ...

See a "lane closed ahead" sign coming up? Your instinct might ... and drivers continue to use both lanes of traffic until the merge area, when drivers alternate, taking turns merging into a ...

Though drivers education may have taught about merging lanes, this sign in Chico appears to be uncommon — at least not mentioned in the most recent California Manual of Uniform Traffic Devices.

A zipper merge is designed to keep traffic moving smoothly by letting drivers ... alternating in a zipper fashion into the open lane. Sign will indicate when drivers should take turns merging.

studies have shown that traffic flows more smoothly if drivers merge soon after seeing the “lane closed ahead” sign. That’s because if two cars traveling nearly side by side at a normal ...

the signs are more obvious than “Right Lane Ends.” “We call ours an 'alternate merge' and we only use it in select locations to get better lane utilization usually coming out of a traffic ...

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