I've always thought the cause of zipper merging would be well served by construction companies using big signs saying something like "Lane Ends, Merge Ahead," followed by "Stay in Lane, Zipper Merge" followed by "Zipper Merge For Faster Traffic. This graphic shows pretty clearly what I've always said: The attitude that the continuing lane has no responsibility to make the merge system work is the root of the problem. It is not some kind of magic that creates earliness out of nothing and distributes it to all the people in line. Just moved to the Angel City, huh?
Dead Daughter- Asshole Traffic
This amount of traffic is the same immediately before, at the congestion point, and after the congestion point, even though each individual car drives at different speeds in each section. When I worked in news I wished we could do a segment where you just park a camera at merge points, four way stops, etc and pull video of asshole drivers each day to publicly call them out, I always thought that would be a mighty fine public service for local news to take on. There is a psychological fallacy that by getting closer to the choke point you are somehow getting through sooner. Or did until they opened the new bridge span a few weeks ago. Under those conditions, congestion is completely unavoidable regardless of merging strategy. If you're actually paying attention while driving, it's obvious even without the signs that a merge is about to happen, sometimes it's because of an accident, a traffic stop, or a stalled vehicle Delays matter whenever they happen, because they have complex knock-on effects.
Asshole traffic sign - Imgur
I think this is where the confusion is. So what's the tradeoff between the length of X and the length of Y? You know what it takes? You have successfully signed up for your selected newsletter s - please keep an eye on your mailbox, we're movin' in! What you don't want to do is gamble, press your luck and just hope that a space opens up for you at the very end. Or sign in with a social account:
If everyone did this the zipper merge would result as an emergent property. Imagine if you hit a cyclist as this sad, tragic story recounts. Was your favorite bit when Times editor Bill Keller pretended his paper hasn't c ited Politico times since February ? Your trip time is exactly the same regardless. Forget the name zipper merge as some people mistakenly think that implies a last second merge. The distance travelled is obviously the same as well. The anger here is entirely misplaced.