Is the high-speed rail stopped for the rainstorm red warning?

If the rainstorm affects the operation of the high-speed rail, the high-speed rail will be shut down.

It depends. Under normal circumstances, high-speed rail will run in heavy rain. If the heavy rain causes damage to the railway subgrade and affects the safety of driving, it will stop running. Due to the weather, the news of speed limit or shutdown of bullet trains and high-speed trains is not uncommon. Compared with aviation, waterway and highway traffic, railway traffic is indeed the least affected by the weather, but to ensure the safety of high-speed high-speed rail and bullet trains, the weather factor can not be ignored.

High-speed rail can operate in general weather such as wind, rain, fog and snow, but it will still be affected by some extreme weather, such as heavy rainfall, blizzard, fog and strong wind. Among them, gale is one of the most serious weather that affects the operation of high-speed railway, and it is also a meteorological disaster that railway departments focus on preventing.

Strong wind will lead to the failure of train power system and signal system. In extreme cases, the instantaneous strong wind can directly overturn the train. According to relevant research data, when the wind speed is greater than 20 m/s, the high-speed rail will run at a speed limit without a wind wall; Heavy fog, heavy snow and heavy rain mainly affect the power system and signal system of high-speed railway, which leads to the delay and suspension of high-speed railway. So be sure to pay attention to the latest weather before going out.

Classification of flood warning signals

Red is the most serious flood warning. The flood red warning signal indicates that the estimated water level may reach or exceed the design water level of dike/crest elevation /50-year return water level. Flood warning signals are marked with blue, yellow, orange and red in turn according to the development trend and the degree of possible harm.

Blue warning signal: indicates that the estimated water level may reach or exceed the warning water level. Standard: Meet one of the following conditions. The water level (flow) is close to the warning water level (flow); The return period of flood elements is close to 5 years.

Yellow warning signal: indicates that the estimated water level may be close to the guaranteed water level. Standard: Meet one of the following conditions. The water level (flow) reaches or exceeds the warning water level (flow); The return period of flood elements reaches or exceeds 5 years.

Orange warning signal: indicates that the estimated water level may reach or exceed the guaranteed water level. Standard: Meet one of the following conditions. The water level (flow) reaches or exceeds the guaranteed water level (flow); The return period of flood elements reaches or exceeds 20 years.

Red warning signal: It means that the estimated water level may reach or exceed the designed water level of dike/crest elevation /50-year return period. Standard: Meet one of the following conditions. The water level (flow) reaches or exceeds the highest water level (maximum flow) in history; The return period of flood elements reaches or exceeds 50 years.