Today, a topic "It only takes 2.5 hours from Shanghai to Beijing" aroused heated discussion among netizens. Some media reports stated that,The high-speed rail with a speed of 450 kilometers per hour will be put into operation in 2025. By then, the high-speed rail between Beijing and Shanghai will only take 2.5 hours to reach.

Regarding this news, many netizens liked it and said: "It's getting faster and faster!! I don't have to be tired even if I go back and forth in the same day", "This is amazing, it saves time than flying" and so on.

However, some netizens pointed out that time cannot be calculated this way.

It is understood that the Beijing-Shanghai high-speed railway runs from Beijing South Railway Station to Shanghai Hongqiao Station, with a total length of 1,318 kilometers and a design speed of 380 kilometers per hour.

Even if you run at a speed of 450 kilometers per hour without stopping, you can't reach both places in 3 hours.

According to reports, in June last year, the "fastest high-speed rail" CR450 conducted a performance verification test under high operating speed conditions. The test train ran at a single train speed of 453 kilometers per hour and a relative intersection speed of 891 kilometers per hour.

However, in actual operation of my country's high-speed rail, it does not operate at the test speed, which means that even the CR450 will not exceed 400 kilometers per hour after official operation.

It is reported that the current three speed levels of Fuxing trains are CR400/300/200. The numbers indicate the maximum speed and the sustained speeds correspond to 350, 250 and 160km/h respectively. They are suitable for high-speed railways (high-speed railways), express railways (express railways), and intercity railways (urban railways).