Well, it’s probably nitpicking on my part, but I recall it was “The Interstate and Defense Highway Act” or something along those lines.
Not just for John Doe to cruise along for vacationing purposes, but a comprehensive interconnected highway system for transporting troops and equipment, should the need arise.
The states essentially gave up the right-of-way and the feds were to maintain them. No possibility for the state to collect tolls on the interstate system. That’s how it was intended and proposed, as I recall it.
True, but was that anything other than the usual political ploy to associate pork barrel spending with a popular cause?
Large numbers of troops and heavy military equipment can be moved by rail, and were during World War II.
An actual invasion of the US by land forces was implausible, given the nuclear arsenal available. Following a nuclear exchange, the system would likely be unusable anyway.