400kmh is the current global standard for design speed as far as I can tell--China's CR400 trains were built to that standard, and I've seen it in recent developments in Korea and Russia as well. China still has the operational world speed record right now--350kmh.
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can we just have 1000mph trains all across america already
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How did you pick 380kmh for your handle?
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It was the standard for design speed (not operating speed) a few years back.
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