I used to support the HSR project on the grounds that connecting the state (both LA / Bay Area and the Central Valley towns) would yield long term economic benefits due the increased flow of people within the state. Decreasing the effective distance between people by making travel faster and cheaper has a lot of value in the information economy. Nothing beats face to face communication. I now no longer support the pr…
For $100B you could buy ~33,000 $3M-dollar electric commuter planes with 10 person capacity and 600mi range - not quite anything like that on the market yet mind you - but it seems close at hand. You could cover nearly the whole state, not just LA SF, and have 330,000 person capacity. By what measure would this train be better? Certainly not economic, noise, land-use, speed, convenience, coverage, or flexibility. Pro…
Upfront costs are just a small fraction of the price of flying planes around. That 3 (or 10) million per plane quickly gets subsumed by maintenance, staffing, and other recurring costs.
I don't know how loud these hypothetical electric planes are, but if they're like traditional ones I doubt that they'd beat a train in terms of noise (even though HSR can be 10-20 decibels louder than slower trains). I would question that there would actually be an advantage in speed or convenience, at least between highly populated areas.