Firstly, it was because a local city had improper drainage treatment; secondly, it was because the amount of rainfall was too heavy; and thirdly, it was because the rainfall in Shanxi lasted too long. The author believes that there are mainly three situations:

1. Because of improper drainage treatment in a local city

One of the main reasons is that the drainage system of a local city in Shanxi is not particularly clear. If the drainage system of a local city in Shanxi If it is in a particularly smooth situation, it will inevitably cause corresponding urban waterlogging and require timely drainage and dredging. It is precisely because the drainage system is not dredged enough that it has led to the corresponding floods in Shaanxi. For many friends, , in many cases what they need is a timely measure to help the city's sewers clear and drain, to help the city drain better.

2. Because of excessive rainfall

For many Shanxi areas, the main reason why they have excessive rainfall is because The local rainfall is too abundant, and these rainfalls often affect the sewer drainage sequence of Shanxi cities. For these cities, what they need in many cases is timely and appropriate urban drainage. Transfer some important basic social construction.

3. Because the rainfall in Shanxi lasts too long

For this group of people, the rainfall in Shanxi lasts too long, which will lead to corresponding urban waterlogging problems. In many places, Sometimes they are often powerless to deal with the flooding in these cities. After all, for them, the flooding in these cities is not only a natural and man-made disaster, but also because the rainfall lasts too long. For many people, they What is needed is to protect yourself and not have your safety affected by urban waterlogging.

Note: For many people, what they need most of the time is help with urban waterlogging, and they also need to learn to protect their own safety.