Yes. Actually, I think we could get most long distance freight on to the rails (or, to a much lesser extent but not to be ignored, on boats & barges) very quickly, and achieve some very quick energy efficiency gains and corresponding reductions in our need for diesel fuel. The electrification of the rail lines needs to happen and will come, but let's not have the incorrect idea that it must happen BEFORE the freight moves on to the rails. It isn't a precondition, and it is in fact starting to happen right now. Using good old Pareto's rule of thumb, we can probably expect to see about 80% of the benefit with the first 20% of your added investments, so we might not need to wait anything like your 10-20 years to realize most of the gains.

Removing the long-distance truck traffic from the highways would have the further benefit of knocking the support from under the highway construction lobby once and for all, with a consequent reallocation of highway construction funds to better long-term uses.