The Zipper Merge: A Smarter Way to Keep Sioux Falls Moving

What Is the Zipper Merge?

If you've ever found yourself stuck in traffic due to construction, you might have noticed that some drivers rush to merge early, while others wait until the very end. The latter approach—known as the zipper merge (or late merge)—is actually the most efficient way to keep traffic moving smoothly.
 
In Sioux Falls, where road construction is a familiar sight, adopting the zipper merge could make a huge difference. Instead of merging prematurely and creating unnecessary congestion that backs up cars for blocks, drivers should use both lanes until the merge point, then take turns, just like a zipper coming together.
 
Some drivers hesitate, thinking it’s impolite or aggressive, but studies show the zipper merge decreases backups by up to 40% and keeps traffic flowing more predictably. When everyone plays along, it makes the drive smoother for all.

Why Is It Better?

Merging too early can slow down traffic and cause frustration. The zipper merge:

• Keeps traffic moving: Reduces congestion by using more available road space and minimizing bottlenecks.
• Makes it fair for everyone: Take turns at the merge point rather than waiting in a long line.
• Helps prevent accidents: Fewer sudden lane changes.

How to Use the Zipper Merge

To make it work, everyone needs to follow these steps:

1. Stay in your lane until the merge point.
2. Take turns—one car from each lane goes.
3. Be patient and work together. Not everyone is a fan of the zipper merge – yet!

Check out the video below to learn more about the zipper merge.