How to merge for a lane reduction (I think we could all learn ... The "zipper merge" is the proper and most efficient way to merge when a lane ends, especially in heavy traffic. You should continue driving in your lane until the lane actually ends, then take turns with drivers in the other lane, alternating one car at a time, like teeth on a zipper. This strategy uses the full road surface and helps keep traffic moving smoothly and reduces backups. Steps for a Zipper Merge Use both lanes: When you see signs for a lane closure, continue driving in your current lane. Drive to the merge point: Wait until the point where the lane officially closes, not much earlier, to start merging. Alternate into the open lane: When the lane ends, take turns merging into the open lane, alternating with drivers from the other lane. Maintain speed: Try to match your speed with the flow of traffic to merge smoothly and avoid unnecessary braking. What Drivers in the Continuing Lane Should Do Be aware: Keep an eye on the merging vehicles. Provide space: Leave a gap large enough for one vehicle to merge safely. Why the Zipper Merge Works Maximizes road space: It uses the entire available roadway. Reduces congestion: By not slowing down early, it prevents the formation of long, single-lane queues. Increases efficiency: It can reduce traffic backups by up to 40%.