This is the Shanghai-Beijing train going at 350 km/h
As @yfreemark said:
"The distance between NYC and Chicago is almost exactly that between Beijing and Shanghai.
NYC-CHI is served by 1
/day (19 hrs)
SHA-BEI is served by 35
/day (4.5 hrs)"pic.twitter.com/VuWghXUsLJ
While on vacation with my wife, I took this train from Paris to Amsterdam in 2017. It was pleasant, fast, and efficient. During the trip I used an iPhone speedometer app and saw that the train routinely hit velocities of 180 MPH (290 km/hr) and slightly faster.