Water will only be sprayed when there is continuous drizzle for several days. When there is continuous drizzle for several days, you will find that the sides of the wheels of each bus or each car are covered with a layer of black mud. Because the continuous drizzle cannot wash away the black mud on the road (composed of falling dust, wheel wear dust, road wear dust, garbage debris, etc.), these black mud will not only pollute the car body but also thicken it under the high-speed rotation of the wheels. Small sewage mist droplets will also fly to passers-by and pollute people's hands, faces and clothing and will be inhaled into the lungs by passers-by and affect people's health.
The dirt that is compacted on the road and the dust under the isolation fence is usually difficult to clean by washing and sweeping. After soaking in rain, these stubborn stains become soft, the adhesion is reduced, and it is easy to turn into mud. At this time, use a cleaning sweeper truck makes it easier to remove thoroughly, which has the effect of getting twice the result with half the effort. At the same time, it can also eliminate the hidden dangers of vehicle skidding and pedestrians. In addition, the leaves, paper scraps, plastic bags and other garbage around the road in rainy days are easy to stick to the road surface, which brings inconvenience to manual cleaning, time-consuming and unsafe, and may affect traffic. Therefore, high-pressure road washing operations are carried out on rainy days to clean the road surface. In other words, the effect will be better.
