I expect a lot of resistance to this idea, no matter it's actual impact on safety, from drivers. I know that driving in narrow lanes makes me nervous, and I feel better driving in wider lanes. If narrower lanes will make driving slightly more unpleasant and stressful for most drivers, they're likely to be opposed to it.
People bought big SUVs to feel safer, but it's an illusion. 10 foot lanes would do much to contain this trend. They would also stop texting and pay attention.
