Why do trucks spray liquid onto the street after a storm is over?
Crews monitor the temperature of the air and the road surface. The projected road surface temperature has a lot to do with the final treatment of a road. After plowing operations have finished and a street is left in a clear and wet condition, there is sometimes the danger of the moisture on the street re-freezing. A post-storm anti-icing treatment will inhibit ice from forming and inhibit any additional snow or ice from sticking to the pavement. This post-storm treatment is typically needed at night, since drops in temperature can be more dramatic at night than when the sun is shining.
