How to deal with waterlogging in low-lying areas?

In case of heavy rainfall, the urban underground bridges, underground walkways, underground shopping malls, underground garages and other low-lying areas are prone to waterlogging, and different defensive measures need to be taken according to different situations, as follows:

1, when going out

When heavy rainfall comes, we should try our best to reduce going out. When you have to go out, it is recommended to take a bus, because the bus chassis is high and its wading ability is better than that of ordinary private cars. Pay attention to road information when walking on the road, avoid areas with stagnant water and poor traffic, and stay away from places with eddies;

Try to avoid street lamp poles, telephone poles, transformers, power lines, electric vehicles and other objects that may be charged to prevent electric shock; If any wire falls into the water, keep away from it immediately and place warning signs, and call110 in time; When the rain is heavy and urgent, it is best to take shelter from the rain in a solid building and try to avoid danger in a higher place. Don't stay in culverts, tunnels, underpasses and other low-lying places.

2. When driving out

When driving on the road with accumulated water, you should pay close attention to the warning signs, try to bypass and avoid wading risks. When driving in the rain, turn on the headlights and double flashing lights, and pay attention to keep a large distance from the vehicle in front to prevent the surge and splash from entering the engine and causing the vehicle to stall. It is best for vehicles to drive along the route that the preceding vehicle passes, so as to avoid encountering obstacles in the water.

If water overflows the axle, do not continue driving; When the vehicle is trapped, turn off the engine in time, call for help and take the initiative to escape.

3. When living in low-lying areas and dilapidated houses.

When heavy rainfall comes, residents in low-lying areas can put sandbags on the outside of the threshold to prevent stagnant water from soaking into the house. Once the outdoor water overflows into the house, cut off the indoor power supply and gas supply in time; If the accumulated water continues to rise, don't stay indoors. Evacuate quickly to avoid falling into the water.

Extended data

Causes of urban waterlogging

Urban waterlogging refers to the phenomenon of urban waterlogging disaster caused by heavy precipitation or continuous precipitation exceeding urban drainage capacity. The objective cause of waterlogging is the large rainfall intensity and large concentration range. Water may form in places where the rainfall is particularly urgent, and the rainfall intensity is relatively large, and water may also form when it takes a long time.

It is not easy to form stagnant water in areas with relatively high terrain. For example, although Suzhou, Wuxi and other old cities are water towns, it is not easy to form stagnant water because the old cities choose relatively high-lying areas. In the low-lying areas inside the city, it is easy to form waterlogging. It is very important to choose what kind of terrain to carry out urban construction. If you choose low-lying areas or flood detention areas, the possibility of rainwater accumulation is very high.

China Meteorological Bureau-What is urban waterlogging?