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Topic: Driving safely in difficult conditions · Nº 234 / 247

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Cuando hay lluvia, ¿puede afectar a la seguridad la capa de agua que se forma en el suelo?

When it rains, can the layer of water on the road affect safety?

  • ANo afecta, porque el agua baja la temperatura de los neumáticos, y el coche frena mejor.No, because the water cools the tyres and the car brakes better.
  • BSí puede afectar, porque los neumáticos se adhieren peor y puede haber aquaplaning.Yes, because the tyres grip less and aquaplaning may happen.
  • CSí puede afectar, porque los frenos se calientan demasiado.Yes, because the brakes get too hot.
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Correct answer

  • BSí puede afectar, porque los neumáticos se adhieren peor y puede haber aquaplaning.Yes, because the tyres grip less and aquaplaning may happen.
Explanation

The layer of water reduces tyre grip. If the tread cannot clear the water, the wheel loses contact with the road surface (aquaplaning) and the vehicle stops responding to the steering and the brakes. That is why in rain you must reduce speed and increase the safe distance.

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