Y'mean, like-- canals?
We did that already. They got replaced by--trains.
Why can't normal people accept that trains have been replaced by personal vehicles...that's progress, as they say.
I hope you are not infering I was supporting this idiotic idea.
Moving freight long distances inexpensively is the job of trains and ships. Moving people long distances is the job of air planes augmented by these pesky vehicles called automobiles IMO.