Freezing rain and cooling weather occurred in some areas of Gansu and Shaanxi, causing traffic congestion. Freezing rain freezes immediately when it collides with objects with a temperature below 0°C, and condenses into ice very quickly.
On highways, freezing rain can easily lead to icy roads, causing vehicles to slip and drift. In terms of railways, since most current trains are mainly powered by electricity, each car will have an upward extending device called a pantograph. The pantograph is connected to the high-voltage contact network to transmit power to the train.