How can road conditions improve following rain?

Following rain, road conditions can improve primarily as the surface begins to dry. Typically, during or just after rain, roads can become slick due to water mixing with dust, oil, and other debris that accumulate on the road surface. However, after some time, as the sun shines, wind blows, or the ambient temperature increases, the water starts to evaporate, leading to drier surfaces that enhance traction for vehicles.

This process means that while the roads may not be completely dry instantly, they can improve significantly within a few hours, making it safer for driving. The evaporation of water also reduces the chances of hydroplaning, allowing for better control of the vehicle.