Hangzhou launched an emergency response against snow and freezing. How does the cold weather in many areas affect traffic?

Hangzhou launched an emergency response against snow and freezing. How does the cold weather in many areas affect traffic?

Cold weather will be affected by high-speed rail. Traffic data show that the construction standard of high-speed rail is 350km/h, and there are two modes of speed operation at present: 300km/h in summer and 200km/h in winter. Therefore, the problem of low running speed in winter is really affected by the climate. In severe cold weather, the performance of lubricating oil will decline, and the mechanical parts of the car body will be cold and brittle at low temperature, plus the physical phenomenon of thermal expansion and cold contraction. Then under the whole low temperature condition, the performance of the whole EMU will decline. So the impact on the high-speed rail is to delay the time to reach the destination.

People travel less. In cold weather, there will be fewer cars on the road. Because there are fewer people by bus, there are not so many people who drive out, and even fewer people go out by bike and motorcycle. There will be fewer pedestrians on the road in winter than in summer, and most people will choose to stay at home as much as possible. At this time, if people have the conditions, they can buy some fitness equipment, such as treadmills and elliptical machines, and they can exercise at home at any time. Winter exercise is beneficial to the body to generate heat, improve resistance and reduce the occurrence of diseases. Even if you don't go out to exercise, you can exercise at home.

Moreover, going out in cold conditions will have a negative impact on people's health. If a person often stays or works in a cold place, it will increase the morbidity and even the mortality. Mainly people with cardiovascular and cerebrovascular diseases and respiratory diseases. In cold weather, the impact on patients with respiratory diseases is more serious, and cold will aggravate the condition. It is suggested that such people must wear protective masks when they have to go out, the kind that can keep warm and breathe. Especially the old people who go out have poor adaptability to the cold, especially under the influence of extreme weather, we should consider reducing going out and doing moderate exercise at home.