[etrabroline]

Why build a train line that only takes you where a bus could, when you could build an airport that connects you to the entire globe?

[PaulDavisThe1st]

Because you want to get somewhere faster than the bus or plane could deliver you.

Because the environmental impact of trains is, while controversial, unquestionably less than that of flying.

Because trains should be moving at an average of 140mph or so, which is more than twice that of a bus.

Because most airports don't connect you to the entire globe in a single hop, so you may as well take the train to the existing one that does.