What kind of right-of-way would this system have? If it's sufficiently deep, would they need permissions from every land owner along the route, or could they j

What kind of right-of-way would this system have? If it's sufficiently deep, would they need permissions from every land owner along the route, or could they just bore straight through 100m beneath the surface without affecting anything above ground? >> "a trip between New York and Washington would take just 30 minutes" Would be great, but I'd worry that they will never get the right-of-way to actually bore underneath these huge cities to convenient centrally located stations.