I keep thinking what we really need is a high-speed rail system. In parts of Europe the trains are faster than flying. Planes are faster when they get going but trains suffer far fewer delays.
The problem with "High speed rail" (and this coming from a BIG proponant of rail - funny story at end) is that MOST of the country does NOT have the population density to support it. Pick a country in the world thta HAS High speed rail
Japan has approx 340 people per square KM of land area
France has approx 112 people per sq KM of land area (Metropolitan France)
The US? Approx 33 people per sq KM of land area
Basically, once you get outside the East/West coast "megalopolises" of the East/West coast, there just isn't enough population density within a distance to support High speed rail (Remember "BoWash" - or the NE Corridor as it's usually called by demographers in the USA has 55 Million people in it, and California is 36 Million - 91 Million out of 300 - almost a 1/3)
Read about "the depopulation of the Mid West" and the like, they don't have the population to support many towns anymore (towns are folding regularly).
A LOT of this has lead to the old political/demograpic insult of "Fly Over country" - Thing is, it's a HUGELY important part of the country (Folks, your food comes from there, and a LOT of your natural resources). Part (a large part) of what is driving the depopulation of the planes is pure agricultural effeciency - if you increase crop yields by say 20% (which has happened over say the last 100 years - and probably greater than that), if you don't grow the population by 20%, you need less acres under cultivation - you need less farmers. On top of "Yield/Acre", with the huge increase in mechinization and the like, the mean farm size has gotten huge - to quote a farmer I know via a friend, "If you don't have 300 acres, your a hobbiest". Farms used to be 20-100 acres. Now they are 1000 acres, and are run by just a couple more people than that old 20 acre farm. What happened to those people who ran the other 50 farms? Simple - they moved away, to the suburbs of the cities (which also helped the small farms in the suburbs die)
It's really simple demographics...
And is you look, places with density have "commuter rail" and High speed corridor rail already
The Funny Story:
One of my wife's relatives was a high end consultant to one of the major railroads (won't say which one) - Back circa Mid 80s, he was saying "The railroads are dead" (we were talking freight) - I had pointed out 2-3 law changes and I said "You have not factored this in, business is going to BOOM - do NOT pull the ROW along X (they were single tracking some stuff)" - 10 or so years later, he told me "Boy were you right" (The railroad as busy double tracking where I told them they should never have removed the track)
As I said - there are laws that if changed could make it a bit better, but when you thing "High speed rail" in the USA, just remember all those "empty' (of passengers) miles you have to build across and maintain