What are the general characteristics of rainy road sections? How to identify the section with water ahead in advance?

Characteristics of water-logged sections:

1. Pavement color: The pavement color of the waterlogged road section is usually darker and wetter than that of the dry road section, because the moisture reduces the friction between the road particles and the reflectivity.

2. Reflection: The reflection on the waterlogged road section may be more obvious than that on the dry road section, and the reflection of water will blur the reflection.

3. Waves: There may be obvious waves when the wheels pass through the stagnant water section, which is caused by the different water resistance and friction between the tires and the ground.

4. Water quantity change: The water quantity of the waterlogged section may change with the passing of vehicles, such as water flow and puddles.

5. Road signs change: Road signs may be blurred due to stagnant water, such as road signs and traffic signals.

6. Vehicle sensation: When the vehicle passes through the water-logged section, it may feel vehicle vibration, soft suspension or unstable steering wheel.

At present, most of the accumulated water on the road is turbid. When driving, it is difficult to judge the depth according to the characteristics of accumulated water on the road surface. Usually, wading warning lines or waterlogging warning lines will be set up in low-lying sections that are prone to water accumulation. If you see a waterlogging gauge on a roadside telephone pole, it is more accurate to judge the waterlogging depth, and the waterlogging gauge will be flooded as deep as it is.

How to identify the section with water ahead in advance?

1. Pay attention to observation: when driving in heavy rain, always pay attention to the road conditions. Pay attention to the accumulation of water on both sides of the road, the change of road signs and the abnormal feeling of vehicles.

2. Observe the road conditions: pay attention to the trees and buildings on both sides of the road. If it is found that the trees are tilted and the road is flooded, it may mean that there is a flooded road ahead.

3. Pay attention to the vehicle in front: observe the driving state of the vehicle in front. If the vehicle is found to be driving slowly or suddenly slowing down, it may be because there is a section of water in front.

Special reminder:

Turn off the automatic start-stop function in heavy rain. Many models have automatic start-stop function, but if the car is on the road in heavy rain and rainstorm, it is easy to stall, and the car itself starts and stops automatically, which is easy to damage the engine, so please turn off the automatic start-stop function in heavy rain.

Visibility is poor in heavy rain. Remember to turn on fog lights and position lights when driving. Due to the low visibility in rainstorm weather, the line of sight is blocked. At this time, turning on fog lights and position lights can play a warning role for other vehicles. In addition, when the visibility is low, don't turn on the double flash to avoid misjudging other vehicles.