Even better solution to traffic: develop real high-speed rail in the US, live closer to where you work / need to be (stop suburbs / sprawl), ride bikes or even

Even better solution to traffic: develop real high-speed rail in the US, live closer to where you work / need to be (stop suburbs / sprawl), ride bikes or even just motorcycles / mopeds in California where filtering is legal, or walk. This has a lot of other nice first-order benefits like real communities, decreased pollution, less time wasted commuting, and tons of second-order benefits.