01-31-2011, 07:25 AM
I've never seen a sign that says "alternate merge" or "zipper merge" in Hawaii. The "land ends" sign is, I believe, all Hawaii uses. Maybe we should petition the state to start. "Zipper Merge Ahead, 300 ft"? Love it. Traffic engineers for years have recommended L R L R merges. It's the signage that sucks. The notion that there is a right-of-way here (i.e., the "thru lane") is what confuses people. When people move from the left lane before the Keaau bottleneck to the right, they aren't trying to "take cuts," they are trying to move the traffic more efficiently. It's physics. Google "zipper merge" and see what you come up with.