(10-11-2017, 02:38 PM)ijmorlan Wrote: Minor nit: our roads are not signed for zipper merging. Actually I’m not sure what the design intent of the typical merge setup is.
What I do know is that the only way to resolve the “zipper” debate is to change the signage to be symmetrical: essentially, both lanes should be signed as merging into the other, but with a slightly different new design of sign that makes it clear that it is a zipper merge and where to merge.
A year or two ago there was a proper zipper merge for construction on the 403 Eastbound near the bridge over the Grand River. The signage showed two lanes becoming one with neither ending, and traffic cones directed people to meet in the middle before they zigged that one lane over to the left. Normally I'd expect to see that set up as 'right lane ends', but for whatever reason it wasn't and it worked brilliantly. Oh how I wish they did that everywhere!
...K