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The first rains make roads more slippery because...

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the water mixes with the dirt, oil and other matter on the asphalt, creating a slippery layer on the road surface.

The first rains make roads more slippery because the water mixes with the dirt, oil and other substances that build up on the asphalt, creating a slippery layer on the road surface. This phenomenon is known as "barrillo" (road film) and makes driving dangerous, as it reduces the friction between the tyres and the road, which can lead to a loss of control of the vehicle. To avoid accidents on wet roads caused by this slippery layer, it is important to take extra precautions, such as driving at a reduced speed, increasing the safety distance, braking early and gently, and bearing in mind that the braking distance can increase significantly.

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  • the first drops are denser and cause worse drainage.

  • the water mixes with the dirt, oil and other matter on the asphalt, creating a slippery layer on the road surface.

  • the initial volume of rainfall concentrates in certain areas, forming large puddles.

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