When it rains, the roads are most slippery after several days of rainy weather, because the road surface becomes waterlogged. just after the rain begins, because oil dropped from vehicles has not yet been washed away. just after the rain stops and the road is drying off?

When it rains the roads are most slippery just after the rain begins, because oil dropped from vehicles has not yet been washed away. It is always recommended to be extra cautious at the first sign of rain, drizzle, or snow on the road. This is when many road surfaces are most slippery because moisture mixes with oil and dust that has not been washed away yet and the risk of an accident becomes higher.