There’s also the consideration of specific lanes for autonomous vehicles. How many should be built, and when?
“Do we need 12-foot lanes? Can we get by with 9½- or 10-foot lanes?” said Biter, the Florida transportation official. “We can turn that four-lane express highway into a six-lane express highway with literally the same right-of-way footprint.”
Sure restriping lanes isn't the biggest deal, but I suspect for these things to actually work to whatever extent they will, a lot of public infrastructure will have to be added...