• Pipoca@lemmy.world
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    11 months ago

    Looking at the definitions section of the Wikipedia article on HSR, the Acela is around the bare minimum of several definitions, such as

    Existing tracks specially upgraded for high speeds, allowing a maximum running speed of at least 200 km/h (124 mph).

    Or

    Average running speed across the corridor in excess of 150 km/h (93 mph)

    The Acela is either great MSR, or about half of it is bare minimum HSR, depending on definitions.