If he's looking for mega-good, Musk would do significantly
better to drop a full subway network.
If he's looking for mega-good, Musk would do significantly
better to drop a full subway network.
https://www.slashgear.com/japans-new-maglev-bullet-train-is-...
That's 600km/h. For 600mph you'd need Hyperloop to prove they can do that speed first.
China is building new, high-speed maglev trains and there's many lines already open for business.
Maybe one day Hyperloop will get built and will be open for passenger travel. When that day comes it's possible that surface rail may have already achieved the same speed because third or fourth generation maglev trains are in service.
China is looking at building something like that: http://www.zdnet.com/article/china-developing-600-mph-airles...
Note that it's an above-ground system because the costs of building underground are utterly ridiculous for long distances.