I haven't seen the specific study you mentioned, but it is referred to in the book, "Traffic: Why We Drive the Way We Do (and What It Says About Us)" by Tom Van

I haven't seen the specific study you mentioned, but it is referred to in the book, "Traffic: Why We Drive the Way We Do (and What It Says About Us)" by Tom Vanderbilt. If you are at all interested in traffic, this is a very good book to start with. Mind you, despite being very convincing, I'm not yet a late-merger. I do find myself trying to drive more smoothly, though.