It's not technically fast enough to be called high speed rail: https://en.wikipedia.org/wiki/Higher-speed_rail https://en.wikipedia.org/wiki/Higher-speed_rail

It's not technically fast enough to be called high speed rail: https://en.wikipedia.org/wiki/Higher-speed_rail https://en.wikipedia.org/wiki/Higher-speed_rail But it is worth calling out that good regional rail services exist in the US, and they don't even have to be that fast to be successful!