When the high-speed rail was built, people had already thought of the problem of blizzard. When laying a rail, the rail itself has a heating function. If there is snow, the tracks will automatically melt snow, so the high-speed rail can run normally in snowstorm weather. In addition, before the high-speed rail travels, there will be special vehicles to clear the snow on the rails in advance.

Finally, the high-speed rail will slow down in rainy and snowy weather, and the original speed of 350km/h will drop to 120km, which will not affect people to take the high-speed rail. The high-speed rail will not stop unless it snows heavily and the tracks are covered with snow or even unclear. Generally speaking, the high-speed rail will not be delayed.

Cause of power failure

The speed of high-speed rail is generally very fast, but if it encounters extreme weather such as rain and snow. Then the probability of high-speed rail equipment failure will greatly increase. In addition, most high-speed trains are powered by the power grid. If the power grid fails in snowy days, the trains will also fail or even be damaged accordingly. There are many high-speed trains that will slow down when it snows again, if the situation is not serious.

However, high-speed rail, like public transport, is a public transport operation, and its most notable feature is short train interval and high departure rate. So if a train slows down at this time, there will be fewer trains on other lines of the whole project, and the transportation efficiency of the whole project will be much lower.